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//========================================================================== // // tm_basic.cxx // // Basic timing test / scaffolding // //========================================================================== //####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. // Copyright (C) 2002 Gary Thomas // // eCos is free software; you can redistribute it and/or modify it under // the terms of the GNU General Public License as published by the Free // Software Foundation; either version 2 or (at your option) any later version. // // eCos is distributed in the hope that it will be useful, but WITHOUT ANY // WARRANTY; without even the implied warranty of MERCHANTABILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License along // with eCos; if not, write to the Free Software Foundation, Inc., // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. // // As a special exception, if other files instantiate templates or use macros // or inline functions from this file, or you compile this file and link it // with other works to produce a work based on this file, this file does not // by itself cause the resulting work to be covered by the GNU General Public // License. However the source code for this file must still be made available // in accordance with section (3) of the GNU General Public License. // // This exception does not invalidate any other reasons why a work based on // this file might be covered by the GNU General Public License. // // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. // at http://sources.redhat.com/ecos/ecos-license/ // ------------------------------------------- //####ECOSGPLCOPYRIGHTEND#### //========================================================================== //#####DESCRIPTIONBEGIN#### // // Author(s): gthomas // Contributors: gthomas // Date: 1998-10-19 // Description: Very simple kernel timing test //####DESCRIPTIONEND#### #include <pkgconf/kernel.h> #include <pkgconf/hal.h> #include <cyg/kernel/sched.hxx> #include <cyg/kernel/thread.hxx> #include <cyg/kernel/thread.inl> #include <cyg/kernel/mutex.hxx> #include <cyg/kernel/sema.hxx> #include <cyg/kernel/flag.hxx> #include <cyg/kernel/sched.inl> #include <cyg/kernel/clock.hxx> #include <cyg/kernel/clock.inl> #include <cyg/kernel/kapi.h> #include <cyg/infra/testcase.h> #include <cyg/infra/diag.h> #include <cyg/kernel/test/stackmon.h> #include CYGHWR_MEMORY_LAYOUT_H // Define this to see the statistics with the first sample datum removed. // This can expose the effects of caches on the speed of operations. #undef STATS_WITHOUT_FIRST_SAMPLE #if defined(CYGFUN_KERNEL_API_C) && \ defined(CYGSEM_KERNEL_SCHED_MLQUEUE) && \ defined(CYGVAR_KERNEL_COUNTERS_CLOCK) && \ !defined(CYGDBG_INFRA_DIAG_USE_DEVICE) && \ (CYGNUM_KERNEL_SCHED_PRIORITIES > 12) #define NTHREADS 1 #include "testaux.hxx" // Structure used to keep track of times typedef struct fun_times { cyg_uint32 start; cyg_uint32 end; } fun_times; #define STACK_SIZE CYGNUM_HAL_STACK_SIZE_MINIMUM #ifdef CYGMEM_REGION_ram_SIZE #define CYG_THREAD_OVERHEAD (STACK_SIZE+sizeof(cyg_thread)+(sizeof(fun_times)*2)) #define NTEST_THREADS ((CYGMEM_REGION_ram_SIZE/16)/CYG_THREAD_OVERHEAD) #define CYG_MUTEX_OVERHEAD (sizeof(cyg_mutex_t)+sizeof(fun_times)) #define NMUTEXES ((CYGMEM_REGION_ram_SIZE/16)/CYG_MUTEX_OVERHEAD) #define CYG_MBOX_OVERHEAD (sizeof(cyg_mbox)+sizeof(fun_times)) #define NMBOXES ((CYGMEM_REGION_ram_SIZE/24)/CYG_MBOX_OVERHEAD) #define CYG_SEMAPHORE_OVERHEAD (sizeof(cyg_sem_t)+sizeof(fun_times)) #define NSEMAPHORES ((CYGMEM_REGION_ram_SIZE/16)/CYG_SEMAPHORE_OVERHEAD) #define CYG_COUNTER_OVERHEAD (sizeof(cyg_counter)+sizeof(fun_times)) #define NCOUNTERS ((CYGMEM_REGION_ram_SIZE/24)/CYG_COUNTER_OVERHEAD) #define CYG_FLAG_OVERHEAD (sizeof(cyg_flag_t)+sizeof(fun_times)) #define NFLAGS ((CYGMEM_REGION_ram_SIZE/24)/CYG_FLAG_OVERHEAD) #define CYG_ALARM_OVERHEAD (sizeof(cyg_alarm)+sizeof(fun_times)) #define NALARMS ((CYGMEM_REGION_ram_SIZE/16)/CYG_ALARM_OVERHEAD) #else // Defaults #define NTEST_THREADS 16 #define NMUTEXES 32 #define NMBOXES 32 #define NSEMAPHORES 32 #define NFLAGS 32 #define NCOUNTERS 32 #define NALARMS 32 #endif #define NSAMPLES 32 #define NTHREAD_SWITCHES 128 #define NSCHEDS 128 #define NSAMPLES_SIM 2 #define NTEST_THREADS_SIM 2 #define NTHREAD_SWITCHES_SIM 4 #define NMUTEXES_SIM 2 #define NMBOXES_SIM 2 #define NSEMAPHORES_SIM 2 #define NSCHEDS_SIM 4 #define NFLAGS_SIM 2 #define NCOUNTERS_SIM 2 #define NALARMS_SIM 2 static int nsamples; static int ntest_threads; static int nthread_switches; static int nmutexes; static int nmboxes; static int nsemaphores; static int nscheds; static int nflags; static int ncounters; static int nalarms; static char stacks[NTEST_THREADS][STACK_SIZE]; static cyg_thread test_threads[NTEST_THREADS]; static cyg_handle_t threads[NTEST_THREADS]; static int overhead; static cyg_sem_t synchro; static fun_times thread_ft[NTEST_THREADS]; static fun_times test2_ft[NTHREAD_SWITCHES]; static cyg_mutex_t test_mutexes[NMUTEXES]; static fun_times mutex_ft[NMUTEXES]; static cyg_thread mutex_test_thread; static cyg_handle_t mutex_test_thread_handle; static cyg_mbox test_mboxes[NMBOXES]; static cyg_handle_t test_mbox_handles[NMBOXES]; static fun_times mbox_ft[NMBOXES]; #ifdef CYGMFN_KERNEL_SYNCH_MBOXT_PUT_CAN_WAIT static cyg_thread mbox_test_thread; static cyg_handle_t mbox_test_thread_handle; #endif static cyg_sem_t test_semaphores[NSEMAPHORES]; static fun_times semaphore_ft[NSEMAPHORES]; static cyg_thread semaphore_test_thread; static cyg_handle_t semaphore_test_thread_handle; static fun_times sched_ft[NSCHEDS]; static cyg_counter test_counters[NCOUNTERS]; static cyg_handle_t counters[NCOUNTERS]; static fun_times counter_ft[NCOUNTERS]; static cyg_flag_t test_flags[NFLAGS]; static fun_times flag_ft[NFLAGS]; static cyg_alarm test_alarms[NALARMS]; static cyg_handle_t alarms[NALARMS]; static fun_times alarm_ft[NALARMS]; static long rtc_resolution[] = CYGNUM_KERNEL_COUNTERS_RTC_RESOLUTION; static long ns_per_system_clock; #if defined(CYGVAR_KERNEL_COUNTERS_CLOCK_LATENCY) && defined(HAL_CLOCK_LATENCY) // Data kept by kernel real time clock measuring clock interrupt latency extern cyg_tick_count total_clock_latency, total_clock_interrupts; extern cyg_int32 min_clock_latency, max_clock_latency; extern bool measure_clock_latency; #endif #if defined(CYGVAR_KERNEL_COUNTERS_CLOCK_DSR_LATENCY) && defined(HAL_CLOCK_LATENCY) extern cyg_tick_count total_clock_dsr_latency, total_clock_dsr_calls; extern cyg_int32 min_clock_dsr_latency, max_clock_dsr_latency; extern bool measure_clock_latency; #endif void run_sched_tests(void); void run_thread_tests(void); void run_thread_switch_test(void); void run_mutex_tests(void); void run_mutex_circuit_test(void); void run_mbox_tests(void); void run_mbox_circuit_test(void); void run_semaphore_tests(void); void run_semaphore_circuit_test(void); void run_counter_tests(void); void run_flag_tests(void); void run_alarm_tests(void); #ifndef max #define max(n,m) (m > n ? n : m) #endif // Wait until a clock tick [real time clock] has passed. This should keep it // from happening again during a measurement, thus minimizing any fluctuations void wait_for_tick(void) { cyg_tick_count_t tv0, tv1; tv0 = cyg_current_time(); while (true) { tv1 = cyg_current_time(); if (tv1 != tv0) break; } } // Display a number of ticks as microseconds // Note: for improved calculation significance, values are kept in ticks*1000 void show_ticks_in_us(cyg_uint32 ticks) { long long ns; ns = (ns_per_system_clock * (long long)ticks) / CYGNUM_KERNEL_COUNTERS_RTC_PERIOD; ns += 5; // for rounding to .01us diag_printf("%5d.%02d", (int)(ns/1000), (int)((ns%1000)/10)); } // // If the kernel is instrumented to measure clock interrupt latency, these // measurements can be drastically perturbed by printing via "diag_printf()" // since that code may run with interrupts disabled for long periods. // // In order to get accurate/reasonable latency figures _for the kernel // primitive functions beint tested_, the kernel's latency measurements // are suspended while the printing actually takes place. // // The measurements are reenabled after the printing, thus allowing for // fair measurements of the kernel primitives, which are not distorted // by the printing mechanisms. #if defined(CYGVAR_KERNEL_COUNTERS_CLOCK_LATENCY) && defined(HAL_CLOCK_LATENCY) void disable_clock_latency_measurement(void) { wait_for_tick(); measure_clock_latency = false; } void enable_clock_latency_measurement(void) { wait_for_tick(); measure_clock_latency = true; } // Ensure that the measurements are reasonable (no startup anomalies) void reset_clock_latency_measurement(void) { disable_clock_latency_measurement(); total_clock_latency = 0; total_clock_interrupts = 0; min_clock_latency = 0x7FFFFFFF; max_clock_latency = 0; #if defined(CYGVAR_KERNEL_COUNTERS_CLOCK_DSR_LATENCY) && defined(HAL_CLOCK_LATENCY) total_clock_dsr_latency = 0; total_clock_dsr_calls = 0; min_clock_dsr_latency = 0x7FFFFFFF; max_clock_dsr_latency = 0; #endif enable_clock_latency_measurement(); } #else #define disable_clock_latency_measurement() #define enable_clock_latency_measurement() #define reset_clock_latency_measurement() #endif void show_times_hdr(void) { disable_clock_latency_measurement(); diag_printf("\n"); diag_printf(" Confidence\n"); diag_printf(" Ave Min Max Var Ave Min Function\n"); diag_printf(" ====== ====== ====== ====== ========== ========\n"); enable_clock_latency_measurement(); } void show_times_detail(fun_times ft[], int nsamples, char *title, bool ignore_first) { int i, delta, min, max, con_ave, con_min, ave_dev; int start_sample, total_samples; cyg_int32 total, ave; if (ignore_first) { start_sample = 1; total_samples = nsamples-1; } else { start_sample = 0; total_samples = nsamples; } total = 0; min = 0x7FFFFFFF; max = 0; for (i = start_sample; i < nsamples; i++) { if (ft[i].end < ft[i].start) { // Clock wrapped around (timer tick) delta = (ft[i].end+CYGNUM_KERNEL_COUNTERS_RTC_PERIOD) - ft[i].start; } else { delta = ft[i].end - ft[i].start; } delta -= overhead; if (delta < 0) delta = 0; delta *= 1000; total += delta; if (delta < min) min = delta; if (delta > max) max = delta; } ave = total / total_samples; total = 0; ave_dev = 0; for (i = start_sample; i < nsamples; i++) { if (ft[i].end < ft[i].start) { // Clock wrapped around (timer tick) delta = (ft[i].end+CYGNUM_KERNEL_COUNTERS_RTC_PERIOD) - ft[i].start; } else { delta = ft[i].end - ft[i].start; } delta -= overhead; if (delta < 0) delta = 0; delta *= 1000; delta = delta - ave; if (delta < 0) delta = -delta; ave_dev += delta; } ave_dev /= total_samples; con_ave = 0; con_min = 0; for (i = start_sample; i < nsamples; i++) { if (ft[i].end < ft[i].start) { // Clock wrapped around (timer tick) delta = (ft[i].end+CYGNUM_KERNEL_COUNTERS_RTC_PERIOD) - ft[i].start; } else { delta = ft[i].end - ft[i].start; } delta -= overhead; if (delta < 0) delta = 0; delta *= 1000; if ((delta <= (ave+ave_dev)) && (delta >= (ave-ave_dev))) con_ave++; if ((delta <= (min+ave_dev)) && (delta >= (min-ave_dev))) con_min++; } con_ave = (con_ave * 100) / total_samples; con_min = (con_min * 100) / total_samples; show_ticks_in_us(ave); show_ticks_in_us(min); show_ticks_in_us(max); show_ticks_in_us(ave_dev); disable_clock_latency_measurement(); diag_printf(" %3d%% %3d%%", con_ave, con_min); diag_printf(" %s\n", title); enable_clock_latency_measurement(); } void show_times(fun_times ft[], int nsamples, char *title) { show_times_detail(ft, nsamples, title, false); #ifdef STATS_WITHOUT_FIRST_SAMPLE show_times_detail(ft, nsamples, "", true); #endif } void show_test_parameters(void) { disable_clock_latency_measurement(); diag_printf("\nTesting parameters:\n"); diag_printf(" Clock samples: %5d\n", nsamples); diag_printf(" Threads: %5d\n", ntest_threads); diag_printf(" Thread switches: %5d\n", nthread_switches); diag_printf(" Mutexes: %5d\n", nmutexes); diag_printf(" Mailboxes: %5d\n", nmboxes); diag_printf(" Semaphores: %5d\n", nsemaphores); diag_printf(" Scheduler operations: %5d\n", nscheds); diag_printf(" Counters: %5d\n", ncounters); diag_printf(" Flags: %5d\n", nflags); diag_printf(" Alarms: %5d\n", nalarms); diag_printf("\n"); enable_clock_latency_measurement(); } void end_of_test_group(void) { disable_clock_latency_measurement(); diag_printf("\n"); enable_clock_latency_measurement(); } // Compute a name for a thread char * thread_name(char *basename, int indx) { return "<<NULL>>"; // Not currently used } // test0 - null test, never executed void test0(cyg_uint32 indx) { #ifndef CYGPKG_KERNEL_SMP_SUPPORT // In SMP, somw of these threads will execute diag_printf("test0.%d executed?\n", indx); #endif cyg_thread_exit(); } // test1 - empty test, simply exit. Last thread signals parent. void test1(cyg_uint32 indx) { if (indx == (cyg_uint32)(ntest_threads-1)) { cyg_semaphore_post(&synchro); // Signal that last thread is dying } cyg_thread_exit(); } // test2 - measure thread switch times void test2(cyg_uint32 indx) { int i; for (i = 0; i < nthread_switches; i++) { if (indx == 0) { HAL_CLOCK_READ(&test2_ft[i].start); } else { HAL_CLOCK_READ(&test2_ft[i].end); } cyg_thread_yield(); } if (indx == 1) { cyg_semaphore_post(&synchro); } cyg_thread_exit(); } // Full-circuit mutex unlock/lock test void mutex_test(cyg_uint32 indx) { int i; cyg_mutex_lock(&test_mutexes[0]); for (i = 0; i < nmutexes; i++) { cyg_semaphore_wait(&synchro); wait_for_tick(); // Wait until the next clock tick to minimize aberations HAL_CLOCK_READ(&mutex_ft[i].start); cyg_mutex_unlock(&test_mutexes[0]); cyg_mutex_lock(&test_mutexes[0]); cyg_semaphore_post(&synchro); } cyg_thread_exit(); } // Full-circuit mbox put/get test void mbox_test(cyg_uint32 indx) { void *item; do { item = cyg_mbox_get(test_mbox_handles[0]); HAL_CLOCK_READ(&mbox_ft[(int)item].end); cyg_semaphore_post(&synchro); } while ((int)item != (nmboxes-1)); cyg_thread_exit(); } // Full-circuit semaphore post/wait test void semaphore_test(cyg_uint32 indx) { int i; for (i = 0; i < nsemaphores; i++) { cyg_semaphore_wait(&test_semaphores[0]); HAL_CLOCK_READ(&semaphore_ft[i].end); cyg_semaphore_post(&synchro); } cyg_thread_exit(); } // // This set of tests is used to measure kernel primitives that deal with threads // void run_thread_tests(void) { int i; cyg_priority_t prio; // Set my priority higher than any I plan to create cyg_thread_set_priority(cyg_thread_self(), 2); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_create(10, // Priority - just a number test0, // entry i, // index thread_name("thread", i), // Name &stacks[i][0], // Stack STACK_SIZE, // Size &threads[i], // Handle &test_threads[i] // Thread data structure ); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Create thread"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_yield(); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Yield thread [all suspended]"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_suspend(threads[i]); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Suspend [suspended] thread"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_resume(threads[i]); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Resume thread"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_set_priority(threads[i], 11); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Set priority"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); prio = cyg_thread_get_priority(threads[i]); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Get priority"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_kill(threads[i]); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Kill [suspended] thread"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_yield(); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Yield [no other] thread"); // Set my priority higher than any I plan to create cyg_thread_set_priority(cyg_thread_self(), 2); // Recreate the test set for (i = 0; i < ntest_threads; i++) { cyg_thread_create(10, // Priority - just a number test0, // entry i, // index thread_name("thread", i), // Name &stacks[i][0], // Stack STACK_SIZE, // Size &threads[i], // Handle &test_threads[i] // Thread data structure ); } wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_resume(threads[i]); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Resume [suspended low prio] thread"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_resume(threads[i]); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Resume [runnable low prio] thread"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_suspend(threads[i]); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Suspend [runnable] thread"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_yield(); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Yield [only low prio] thread"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_suspend(threads[i]); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Suspend [runnable->not runnable]"); for (i = 0; i < ntest_threads; i++) { cyg_thread_resume(threads[i]); } wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_kill(threads[i]); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Kill [runnable] thread"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_delete(threads[i]); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Destroy [dead] thread"); // Recreate the test set for (i = 0; i < ntest_threads; i++) { cyg_thread_create(10, // Priority - just a number test0, // entry i, // index thread_name("thread", i), // Name &stacks[i][0], // Stack STACK_SIZE, // Size &threads[i], // Handle &test_threads[i] // Thread data structure ); cyg_thread_resume(threads[i]); } wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_delete(threads[i]); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Destroy [runnable] thread"); // Set my priority lower than any I plan to create cyg_thread_set_priority(cyg_thread_self(), 3); // Set up the end-of-threads synchronizer cyg_semaphore_init(&synchro, 0); // Recreate the test set for (i = 0; i < ntest_threads; i++) { cyg_thread_create(2, // Priority - just a number test1, // entry i, // index thread_name("thread", i), // Name &stacks[i][0], // Stack STACK_SIZE, // Size &threads[i], // Handle &test_threads[i] // Thread data structure ); } wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ntest_threads; i++) { HAL_CLOCK_READ(&thread_ft[i].start); cyg_thread_resume(threads[i]); HAL_CLOCK_READ(&thread_ft[i].end); } show_times(thread_ft, ntest_threads, "Resume [high priority] thread"); cyg_semaphore_wait(&synchro); // Wait for all threads to finish // Make sure they are all dead for (i = 0; i < ntest_threads; i++) { cyg_thread_delete(threads[i]); } run_thread_switch_test(); end_of_test_group(); } void run_thread_switch_test(void) { int i; // Set up for thread context switch for (i = 0; i < 2; i++) { cyg_thread_create(10, // Priority - just a number test2, // entry i, // index thread_name("thread", i), // Name &stacks[i][0], // Stack STACK_SIZE, // Size &threads[i], // Handle &test_threads[i] // Thread data structure ); cyg_thread_resume(threads[i]); } // Set up the end-of-threads synchronizer cyg_semaphore_init(&synchro, 0); cyg_semaphore_wait(&synchro); wait_for_tick(); // Wait until the next clock tick to minimize aberations show_times(test2_ft, nthread_switches, "Thread switch"); // Clean up for (i = 0; i < 2; i++) { cyg_thread_delete(threads[i]); } } void run_mutex_tests(void) { int i; // Mutex primitives wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmutexes; i++) { HAL_CLOCK_READ(&mutex_ft[i].start); cyg_mutex_init(&test_mutexes[i]); HAL_CLOCK_READ(&mutex_ft[i].end); } show_times(mutex_ft, nmutexes, "Init mutex"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmutexes; i++) { HAL_CLOCK_READ(&mutex_ft[i].start); cyg_mutex_lock(&test_mutexes[i]); HAL_CLOCK_READ(&mutex_ft[i].end); } show_times(mutex_ft, nmutexes, "Lock [unlocked] mutex"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmutexes; i++) { HAL_CLOCK_READ(&mutex_ft[i].start); cyg_mutex_unlock(&test_mutexes[i]); HAL_CLOCK_READ(&mutex_ft[i].end); } show_times(mutex_ft, nmutexes, "Unlock [locked] mutex"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmutexes; i++) { HAL_CLOCK_READ(&mutex_ft[i].start); cyg_mutex_trylock(&test_mutexes[i]); HAL_CLOCK_READ(&mutex_ft[i].end); } show_times(mutex_ft, nmutexes, "Trylock [unlocked] mutex"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmutexes; i++) { HAL_CLOCK_READ(&mutex_ft[i].start); cyg_mutex_trylock(&test_mutexes[i]); HAL_CLOCK_READ(&mutex_ft[i].end); } show_times(mutex_ft, nmutexes, "Trylock [locked] mutex"); // Must unlock mutices before destroying them. for (i = 0; i < nmutexes; i++) { cyg_mutex_unlock(&test_mutexes[i]); } wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmutexes; i++) { HAL_CLOCK_READ(&mutex_ft[i].start); cyg_mutex_destroy(&test_mutexes[i]); HAL_CLOCK_READ(&mutex_ft[i].end); } show_times(mutex_ft, nmutexes, "Destroy mutex"); run_mutex_circuit_test(); end_of_test_group(); } void run_mutex_circuit_test(void) { int i; // Set my priority lower than any I plan to create cyg_thread_set_priority(cyg_thread_self(), 4); // Set up for full mutex unlock/lock test cyg_mutex_init(&test_mutexes[0]); cyg_semaphore_init(&synchro, 0); cyg_thread_create(3, // Priority - just a number mutex_test, // entry 0, // index thread_name("thread", 0), // Name &stacks[0][0], // Stack STACK_SIZE, // Size &mutex_test_thread_handle, // Handle &mutex_test_thread // Thread data structure ); cyg_thread_resume(mutex_test_thread_handle); // Need to raise priority so that this thread will block on the "lock" cyg_thread_set_priority(cyg_thread_self(), 2); for (i = 0; i < nmutexes; i++) { cyg_semaphore_post(&synchro); cyg_mutex_lock(&test_mutexes[0]); HAL_CLOCK_READ(&mutex_ft[i].end); cyg_mutex_unlock(&test_mutexes[0]); cyg_semaphore_wait(&synchro); } cyg_thread_delete(mutex_test_thread_handle); show_times(mutex_ft, nmutexes, "Unlock/Lock mutex"); } void run_mbox_tests(void) { int i, cnt; void *item; // Mailbox primitives wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); cyg_mbox_create(&test_mbox_handles[i], &test_mboxes[i]); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Create mbox"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); cnt = cyg_mbox_peek(test_mbox_handles[i]); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Peek [empty] mbox"); #ifdef CYGMFN_KERNEL_SYNCH_MBOXT_PUT_CAN_WAIT wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); cyg_mbox_put(test_mbox_handles[i], (void *)i); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Put [first] mbox"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); cnt = cyg_mbox_peek(test_mbox_handles[i]); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Peek [1 msg] mbox"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); cyg_mbox_put(test_mbox_handles[i], (void *)i); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Put [second] mbox"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); cnt = cyg_mbox_peek(test_mbox_handles[i]); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Peek [2 msgs] mbox"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); item = cyg_mbox_get(test_mbox_handles[i]); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Get [first] mbox"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); item = cyg_mbox_get(test_mbox_handles[i]); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Get [second] mbox"); #endif // ifdef CYGMFN_KERNEL_SYNCH_MBOXT_PUT_CAN_WAIT wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); cyg_mbox_tryput(test_mbox_handles[i], (void *)i); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Tryput [first] mbox"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); item = cyg_mbox_peek_item(test_mbox_handles[i]); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Peek item [non-empty] mbox"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); item = cyg_mbox_tryget(test_mbox_handles[i]); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Tryget [non-empty] mbox"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); item = cyg_mbox_peek_item(test_mbox_handles[i]); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Peek item [empty] mbox"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); item = cyg_mbox_tryget(test_mbox_handles[i]); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Tryget [empty] mbox"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); cyg_mbox_waiting_to_get(test_mbox_handles[i]); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Waiting to get mbox"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); cyg_mbox_waiting_to_put(test_mbox_handles[i]); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Waiting to put mbox"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nmboxes; i++) { HAL_CLOCK_READ(&mbox_ft[i].start); cyg_mbox_delete(test_mbox_handles[i]); HAL_CLOCK_READ(&mbox_ft[i].end); } show_times(mbox_ft, nmboxes, "Delete mbox"); run_mbox_circuit_test(); end_of_test_group(); } void run_mbox_circuit_test(void) { #ifdef CYGMFN_KERNEL_SYNCH_MBOXT_PUT_CAN_WAIT int i; // Set my priority lower than any I plan to create cyg_thread_set_priority(cyg_thread_self(), 3); // Set up for full mbox put/get test cyg_mbox_create(&test_mbox_handles[0], &test_mboxes[0]); cyg_semaphore_init(&synchro, 0); cyg_thread_create(2, // Priority - just a number mbox_test, // entry 0, // index thread_name("thread", 0), // Name &stacks[0][0], // Stack STACK_SIZE, // Size &mbox_test_thread_handle, // Handle &mbox_test_thread // Thread data structure ); cyg_thread_resume(mbox_test_thread_handle); for (i = 0; i < nmboxes; i++) { wait_for_tick(); // Wait until the next clock tick to minimize aberations HAL_CLOCK_READ(&mbox_ft[i].start); cyg_mbox_put(test_mbox_handles[0], (void *)i); cyg_semaphore_wait(&synchro); } cyg_thread_delete(mbox_test_thread_handle); show_times(mbox_ft, nmboxes, "Put/Get mbox"); #endif } void run_semaphore_tests(void) { int i; cyg_count32 sem_val; // Semaphore primitives wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nsemaphores; i++) { HAL_CLOCK_READ(&semaphore_ft[i].start); cyg_semaphore_init(&test_semaphores[i], 0); HAL_CLOCK_READ(&semaphore_ft[i].end); } show_times(semaphore_ft, nsemaphores, "Init semaphore"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nsemaphores; i++) { HAL_CLOCK_READ(&semaphore_ft[i].start); cyg_semaphore_post(&test_semaphores[i]); HAL_CLOCK_READ(&semaphore_ft[i].end); } show_times(semaphore_ft, nsemaphores, "Post [0] semaphore"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nsemaphores; i++) { HAL_CLOCK_READ(&semaphore_ft[i].start); cyg_semaphore_wait(&test_semaphores[i]); HAL_CLOCK_READ(&semaphore_ft[i].end); } show_times(semaphore_ft, nsemaphores, "Wait [1] semaphore"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nsemaphores; i++) { HAL_CLOCK_READ(&semaphore_ft[i].start); cyg_semaphore_trywait(&test_semaphores[i]); HAL_CLOCK_READ(&semaphore_ft[i].end); } show_times(semaphore_ft, nsemaphores, "Trywait [0] semaphore"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nsemaphores; i++) { cyg_semaphore_post(&test_semaphores[i]); HAL_CLOCK_READ(&semaphore_ft[i].start); cyg_semaphore_trywait(&test_semaphores[i]); HAL_CLOCK_READ(&semaphore_ft[i].end); } show_times(semaphore_ft, nsemaphores, "Trywait [1] semaphore"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nsemaphores; i++) { HAL_CLOCK_READ(&semaphore_ft[i].start); cyg_semaphore_peek(&test_semaphores[i], &sem_val); HAL_CLOCK_READ(&semaphore_ft[i].end); } show_times(semaphore_ft, nsemaphores, "Peek semaphore"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nsemaphores; i++) { HAL_CLOCK_READ(&semaphore_ft[i].start); cyg_semaphore_destroy(&test_semaphores[i]); HAL_CLOCK_READ(&semaphore_ft[i].end); } show_times(semaphore_ft, nsemaphores, "Destroy semaphore"); run_semaphore_circuit_test(); end_of_test_group(); } void run_semaphore_circuit_test(void) { int i; // Set my priority lower than any I plan to create cyg_thread_set_priority(cyg_thread_self(), 3); // Set up for full semaphore post/wait test cyg_semaphore_init(&test_semaphores[0], 0); cyg_semaphore_init(&synchro, 0); cyg_thread_create(2, // Priority - just a number semaphore_test, // entry 0, // index thread_name("thread", 0), // Name &stacks[0][0], // Stack STACK_SIZE, // Size &semaphore_test_thread_handle, // Handle &semaphore_test_thread // Thread data structure ); cyg_thread_resume(semaphore_test_thread_handle); for (i = 0; i < nsemaphores; i++) { wait_for_tick(); // Wait until the next clock tick to minimize aberations HAL_CLOCK_READ(&semaphore_ft[i].start); cyg_semaphore_post(&test_semaphores[0]); cyg_semaphore_wait(&synchro); } cyg_thread_delete(semaphore_test_thread_handle); show_times(semaphore_ft, nsemaphores, "Post/Wait semaphore"); } void run_counter_tests(void) { int i; cyg_tick_count_t val=0; wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ncounters; i++) { HAL_CLOCK_READ(&counter_ft[i].start); cyg_counter_create(&counters[i], &test_counters[i]); HAL_CLOCK_READ(&counter_ft[i].end); } show_times(counter_ft, ncounters, "Create counter"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ncounters; i++) { HAL_CLOCK_READ(&counter_ft[i].start); val = cyg_counter_current_value(counters[i]); HAL_CLOCK_READ(&counter_ft[i].end); } show_times(counter_ft, ncounters, "Get counter value"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ncounters; i++) { HAL_CLOCK_READ(&counter_ft[i].start); cyg_counter_set_value(counters[i], val); HAL_CLOCK_READ(&counter_ft[i].end); } show_times(counter_ft, ncounters, "Set counter value"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ncounters; i++) { HAL_CLOCK_READ(&counter_ft[i].start); cyg_counter_tick(counters[i]); HAL_CLOCK_READ(&counter_ft[i].end); } show_times(counter_ft, ncounters, "Tick counter"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ncounters; i++) { HAL_CLOCK_READ(&counter_ft[i].start); cyg_counter_delete(counters[i]); HAL_CLOCK_READ(&counter_ft[i].end); } show_times(counter_ft, ncounters, "Delete counter"); end_of_test_group(); } void run_flag_tests(void) { int i; cyg_flag_value_t val; wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nflags; i++) { HAL_CLOCK_READ(&flag_ft[i].start); cyg_flag_init(&test_flags[i]); HAL_CLOCK_READ(&flag_ft[i].end); } show_times(flag_ft, nflags, "Init flag"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nflags; i++) { HAL_CLOCK_READ(&flag_ft[i].start); cyg_flag_destroy(&test_flags[i]); HAL_CLOCK_READ(&flag_ft[i].end); } show_times(flag_ft, nflags, "Destroy flag"); // Recreate the flags - reused in the remaining tests for (i = 0; i < nflags; i++) { cyg_flag_init(&test_flags[i]); } wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nflags; i++) { HAL_CLOCK_READ(&flag_ft[i].start); cyg_flag_maskbits(&test_flags[i], 0); HAL_CLOCK_READ(&flag_ft[i].end); } show_times(flag_ft, nflags, "Mask bits in flag"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nflags; i++) { HAL_CLOCK_READ(&flag_ft[i].start); cyg_flag_setbits(&test_flags[i], 0x11); HAL_CLOCK_READ(&flag_ft[i].end); } show_times(flag_ft, nflags, "Set bits in flag [no waiters]"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nflags; i++) { cyg_flag_setbits(&test_flags[i], 0x11); HAL_CLOCK_READ(&flag_ft[i].start); cyg_flag_wait(&test_flags[i], 0x11, CYG_FLAG_WAITMODE_AND); HAL_CLOCK_READ(&flag_ft[i].end); } show_times(flag_ft, nflags, "Wait for flag [AND]"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nflags; i++) { cyg_flag_setbits(&test_flags[i], 0x11); HAL_CLOCK_READ(&flag_ft[i].start); cyg_flag_wait(&test_flags[i], 0x11, CYG_FLAG_WAITMODE_OR); HAL_CLOCK_READ(&flag_ft[i].end); } show_times(flag_ft, nflags, "Wait for flag [OR]"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nflags; i++) { cyg_flag_setbits(&test_flags[i], 0x11); HAL_CLOCK_READ(&flag_ft[i].start); cyg_flag_wait(&test_flags[i], 0x11, CYG_FLAG_WAITMODE_AND|CYG_FLAG_WAITMODE_CLR); HAL_CLOCK_READ(&flag_ft[i].end); } show_times(flag_ft, nflags, "Wait for flag [AND/CLR]"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nflags; i++) { cyg_flag_setbits(&test_flags[i], 0x11); HAL_CLOCK_READ(&flag_ft[i].start); cyg_flag_wait(&test_flags[i], 0x11, CYG_FLAG_WAITMODE_OR|CYG_FLAG_WAITMODE_CLR); HAL_CLOCK_READ(&flag_ft[i].end); } show_times(flag_ft, nflags, "Wait for flag [OR/CLR]"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nflags; i++) { cyg_flag_setbits(&test_flags[i], 0x11); HAL_CLOCK_READ(&flag_ft[i].start); val = cyg_flag_peek(&test_flags[i]); HAL_CLOCK_READ(&flag_ft[i].end); } show_times(flag_ft, nflags, "Peek on flag"); // Destroy flags - no longer needed for (i = 0; i < nflags; i++) { cyg_flag_destroy(&test_flags[i]); } end_of_test_group(); } // Alarm callback function void alarm_cb(cyg_handle_t alarm, cyg_addrword_t val) { // empty call back } // Callback used to test determinancy static volatile int alarm_cnt; void alarm_cb2(cyg_handle_t alarm, cyg_addrword_t indx) { if (alarm_cnt == nscheds) return; sched_ft[alarm_cnt].start = 0; HAL_CLOCK_READ(&sched_ft[alarm_cnt++].end); if (alarm_cnt == nscheds) { cyg_semaphore_post(&synchro); } } static void alarm_cb3(cyg_handle_t alarm, cyg_addrword_t indx) { if (alarm_cnt == nscheds) { cyg_semaphore_post(&synchro); } else { sched_ft[alarm_cnt].start = 0; cyg_thread_resume((cyg_handle_t)indx); } } // Null thread, used to keep scheduler busy void alarm_test(cyg_uint32 id) { while (true) { cyg_thread_yield(); } } // Thread that suspends itself at the first opportunity void alarm_test2(cyg_uint32 id) { cyg_handle_t me = cyg_thread_self(); while (true) { HAL_CLOCK_READ(&sched_ft[alarm_cnt++].end); cyg_thread_suspend(me); } } void run_alarm_tests(void) { int i; cyg_tick_count_t init_val, step_val; cyg_handle_t rtc_handle; wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < ncounters; i++) { cyg_counter_create(&counters[i], &test_counters[i]); } for (i = 0; i < nalarms; i++) { HAL_CLOCK_READ(&alarm_ft[i].start); cyg_alarm_create(counters[0], alarm_cb, 0, &alarms[i], &test_alarms[i]); HAL_CLOCK_READ(&alarm_ft[i].end); } show_times(alarm_ft, nalarms, "Create alarm"); wait_for_tick(); // Wait until the next clock tick to minimize aberations init_val = 0; step_val = 0; for (i = 0; i < nalarms; i++) { HAL_CLOCK_READ(&alarm_ft[i].start); cyg_alarm_initialize(alarms[i], init_val, step_val); HAL_CLOCK_READ(&alarm_ft[i].end); } show_times(alarm_ft, nalarms, "Initialize alarm"); wait_for_tick(); // Wait until the next clock tick to minimize aberations init_val = 0; step_val = 0; for (i = 0; i < nalarms; i++) { HAL_CLOCK_READ(&alarm_ft[i].start); cyg_alarm_disable(alarms[i]); HAL_CLOCK_READ(&alarm_ft[i].end); } show_times(alarm_ft, nalarms, "Disable alarm"); wait_for_tick(); // Wait until the next clock tick to minimize aberations init_val = 0; step_val = 0; for (i = 0; i < nalarms; i++) { HAL_CLOCK_READ(&alarm_ft[i].start); cyg_alarm_enable(alarms[i]); HAL_CLOCK_READ(&alarm_ft[i].end); } show_times(alarm_ft, nalarms, "Enable alarm"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nalarms; i++) { HAL_CLOCK_READ(&alarm_ft[i].start); cyg_alarm_delete(alarms[i]); HAL_CLOCK_READ(&alarm_ft[i].end); } show_times(alarm_ft, nalarms, "Delete alarm"); wait_for_tick(); // Wait until the next clock tick to minimize aberations cyg_counter_create(&counters[0], &test_counters[0]); cyg_alarm_create(counters[0], alarm_cb, 0, &alarms[0], &test_alarms[0]); init_val = 9999; step_val = 9999; cyg_alarm_initialize(alarms[0], init_val, step_val); cyg_alarm_enable(alarms[0]); for (i = 0; i < ncounters; i++) { HAL_CLOCK_READ(&counter_ft[i].start); cyg_counter_tick(counters[0]); HAL_CLOCK_READ(&counter_ft[i].end); } show_times(counter_ft, ncounters, "Tick counter [1 alarm]"); wait_for_tick(); // Wait until the next clock tick to minimize aberations cyg_counter_create(&counters[0], &test_counters[0]); for (i = 0; i < nalarms; i++) { cyg_alarm_create(counters[0], alarm_cb, 0, &alarms[i], &test_alarms[i]); init_val = 9999; step_val = 9999; cyg_alarm_initialize(alarms[i], init_val, step_val); cyg_alarm_enable(alarms[i]); } for (i = 0; i < ncounters; i++) { HAL_CLOCK_READ(&counter_ft[i].start); cyg_counter_tick(counters[0]); HAL_CLOCK_READ(&counter_ft[i].end); } show_times(counter_ft, ncounters, "Tick counter [many alarms]"); wait_for_tick(); // Wait until the next clock tick to minimize aberations cyg_counter_create(&counters[0], &test_counters[0]); cyg_alarm_create(counters[0], alarm_cb, 0, &alarms[0], &test_alarms[0]); init_val = 1; step_val = 1; cyg_alarm_initialize(alarms[0], init_val, step_val); cyg_alarm_enable(alarms[0]); for (i = 0; i < ncounters; i++) { HAL_CLOCK_READ(&counter_ft[i].start); cyg_counter_tick(counters[0]); HAL_CLOCK_READ(&counter_ft[i].end); } show_times(counter_ft, ncounters, "Tick & fire counter [1 alarm]"); wait_for_tick(); // Wait until the next clock tick to minimize aberations cyg_counter_create(&counters[0], &test_counters[0]); for (i = 0; i < nalarms; i++) { cyg_alarm_create(counters[0], alarm_cb, i, &alarms[i], &test_alarms[i]); init_val = 1; step_val = 1; cyg_alarm_initialize(alarms[i], init_val, step_val); cyg_alarm_enable(alarms[i]); } for (i = 0; i < nalarms; i++) { HAL_CLOCK_READ(&alarm_ft[i].start); cyg_counter_tick(counters[0]); HAL_CLOCK_READ(&alarm_ft[i].end); } for (i = 0; i < nalarms; i++) { cyg_alarm_delete(alarms[i]); } show_times(alarm_ft, nalarms, "Tick & fire counters [>1 together]"); wait_for_tick(); // Wait until the next clock tick to minimize aberations cyg_counter_create(&counters[0], &test_counters[0]); for (i = 0; i < nalarms; i++) { cyg_alarm_create(counters[0], alarm_cb, i, &alarms[i], &test_alarms[i]); init_val = i+1; step_val = nalarms+1; cyg_alarm_initialize(alarms[i], init_val, step_val); cyg_alarm_enable(alarms[i]); } for (i = 0; i < nalarms; i++) { HAL_CLOCK_READ(&alarm_ft[i].start); cyg_counter_tick(counters[0]); HAL_CLOCK_READ(&alarm_ft[i].end); } for (i = 0; i < nalarms; i++) { cyg_alarm_delete(alarms[i]); } show_times(alarm_ft, nalarms, "Tick & fire counters [>1 separately]"); wait_for_tick(); // Wait until the next clock tick to minimize aberations cyg_clock_to_counter(cyg_real_time_clock(), &rtc_handle); cyg_alarm_create(rtc_handle, alarm_cb2, 0, &alarms[0], &test_alarms[0]); init_val = 5; step_val = 5; alarm_cnt = 0; cyg_alarm_initialize(alarms[0], init_val, step_val); cyg_semaphore_init(&synchro, 0); cyg_alarm_enable(alarms[0]); cyg_semaphore_wait(&synchro); cyg_alarm_disable(alarms[0]); cyg_alarm_delete(alarms[0]); show_times(sched_ft, nscheds, "Alarm latency [0 threads]"); // Set my priority higher than any I plan to create cyg_thread_set_priority(cyg_thread_self(), 2); for (i = 0; i < 2; i++) { cyg_thread_create(10, // Priority - just a number alarm_test, // entry i, // index thread_name("thread", i), // Name &stacks[i][0], // Stack STACK_SIZE, // Size &threads[i], // Handle &test_threads[i] // Thread data structure ); cyg_thread_resume(threads[i]); } wait_for_tick(); // Wait until the next clock tick to minimize aberations cyg_clock_to_counter(cyg_real_time_clock(), &rtc_handle); cyg_alarm_create(rtc_handle, alarm_cb2, 0, &alarms[0], &test_alarms[0]); init_val = 5; step_val = 5; alarm_cnt = 0; cyg_alarm_initialize(alarms[0], init_val, step_val); cyg_semaphore_init(&synchro, 0); cyg_alarm_enable(alarms[0]); cyg_semaphore_wait(&synchro); cyg_alarm_disable(alarms[0]); cyg_alarm_delete(alarms[0]); show_times(sched_ft, nscheds, "Alarm latency [2 threads]"); for (i = 0; i < 2; i++) { cyg_thread_suspend(threads[i]); cyg_thread_delete(threads[i]); } // Set my priority higher than any I plan to create cyg_thread_set_priority(cyg_thread_self(), 2); for (i = 0; i < ntest_threads; i++) { cyg_thread_create(10, // Priority - just a number alarm_test, // entry i, // index thread_name("thread", i), // Name &stacks[i][0], // Stack STACK_SIZE, // Size &threads[i], // Handle &test_threads[i] // Thread data structure ); cyg_thread_resume(threads[i]); } wait_for_tick(); // Wait until the next clock tick to minimize aberations cyg_clock_to_counter(cyg_real_time_clock(), &rtc_handle); cyg_alarm_create(rtc_handle, alarm_cb2, 0, &alarms[0], &test_alarms[0]); init_val = 5; step_val = 5; alarm_cnt = 0; cyg_alarm_initialize(alarms[0], init_val, step_val); cyg_semaphore_init(&synchro, 0); cyg_alarm_enable(alarms[0]); cyg_semaphore_wait(&synchro); cyg_alarm_disable(alarms[0]); cyg_alarm_delete(alarms[0]); show_times(sched_ft, nscheds, "Alarm latency [many threads]"); for (i = 0; i < ntest_threads; i++) { cyg_thread_suspend(threads[i]); cyg_thread_delete(threads[i]); } // Set my priority higher than any I plan to create cyg_thread_set_priority(cyg_thread_self(), 2); cyg_thread_create(10, // Priority - just a number alarm_test2, // entry i, // index thread_name("thread", 0), // Name &stacks[0][0], // Stack STACK_SIZE, // Size &threads[0], // Handle &test_threads[0] // Thread data structure ); wait_for_tick(); // Wait until the next clock tick to minimize aberations cyg_clock_to_counter(cyg_real_time_clock(), &rtc_handle); cyg_alarm_create(rtc_handle, alarm_cb3, threads[0], &alarms[0], &test_alarms[0]); init_val = 5; step_val = 5; alarm_cnt = 0; cyg_alarm_initialize(alarms[0], init_val, step_val); cyg_semaphore_init(&synchro, 0); cyg_alarm_enable(alarms[0]); cyg_semaphore_wait(&synchro); cyg_alarm_disable(alarms[0]); cyg_alarm_delete(alarms[0]); show_times(sched_ft, nscheds, "Alarm -> thread resume latency"); cyg_thread_suspend(threads[0]); cyg_thread_delete(threads[0]); end_of_test_group(); } void run_sched_tests(void) { int i; wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nscheds; i++) { HAL_CLOCK_READ(&sched_ft[i].start); cyg_scheduler_lock(); HAL_CLOCK_READ(&sched_ft[i].end); cyg_scheduler_unlock(); } show_times(sched_ft, nscheds, "Scheduler lock"); wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nscheds; i++) { cyg_scheduler_lock(); HAL_CLOCK_READ(&sched_ft[i].start); cyg_scheduler_unlock(); HAL_CLOCK_READ(&sched_ft[i].end); } show_times(sched_ft, nscheds, "Scheduler unlock [0 threads]"); // Set my priority higher than any I plan to create cyg_thread_set_priority(cyg_thread_self(), 2); for (i = 0; i < 1; i++) { cyg_thread_create(10, // Priority - just a number test0, // entry i, // index thread_name("thread", i), // Name &stacks[i][0], // Stack STACK_SIZE, // Size &threads[i], // Handle &test_threads[i] // Thread data structure ); } wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nscheds; i++) { cyg_scheduler_lock(); HAL_CLOCK_READ(&sched_ft[i].start); cyg_scheduler_unlock(); HAL_CLOCK_READ(&sched_ft[i].end); } show_times(sched_ft, nscheds, "Scheduler unlock [1 suspended]"); for (i = 0; i < 1; i++) { cyg_thread_delete(threads[i]); } // Set my priority higher than any I plan to create cyg_thread_set_priority(cyg_thread_self(), 2); for (i = 0; i < ntest_threads; i++) { cyg_thread_create(10, // Priority - just a number test0, // entry i, // index thread_name("thread", i), // Name &stacks[i][0], // Stack STACK_SIZE, // Size &threads[i], // Handle &test_threads[i] // Thread data structure ); } wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nscheds; i++) { cyg_scheduler_lock(); HAL_CLOCK_READ(&sched_ft[i].start); cyg_scheduler_unlock(); HAL_CLOCK_READ(&sched_ft[i].end); } show_times(sched_ft, nscheds, "Scheduler unlock [many suspended]"); for (i = 0; i < ntest_threads; i++) { cyg_thread_delete(threads[i]); } // Set my priority higher than any I plan to create cyg_thread_set_priority(cyg_thread_self(), 2); for (i = 0; i < ntest_threads; i++) { cyg_thread_create(10, // Priority - just a number test0, // entry i, // index thread_name("thread", i), // Name &stacks[i][0], // Stack STACK_SIZE, // Size &threads[i], // Handle &test_threads[i] // Thread data structure ); cyg_thread_resume(threads[i]); } wait_for_tick(); // Wait until the next clock tick to minimize aberations for (i = 0; i < nscheds; i++) { cyg_scheduler_lock(); HAL_CLOCK_READ(&sched_ft[i].start); cyg_scheduler_unlock(); HAL_CLOCK_READ(&sched_ft[i].end); } show_times(sched_ft, nscheds, "Scheduler unlock [many low prio]"); for (i = 0; i < ntest_threads; i++) { cyg_thread_delete(threads[i]); } end_of_test_group(); } void run_all_tests(CYG_ADDRESS id) { int i, j; cyg_uint32 tv[nsamples], tv0, tv1; cyg_uint32 min_stack, max_stack, total_stack, actual_stack; cyg_tick_count_t ticks, tick0, tick1; #ifdef CYG_SCHEDULER_LOCK_TIMINGS cyg_uint32 lock_ave, lock_max; #endif #if defined(CYGVAR_KERNEL_COUNTERS_CLOCK_LATENCY) && defined(HAL_CLOCK_LATENCY) cyg_int32 clock_ave; #endif disable_clock_latency_measurement(); #ifndef CYGPKG_KERNEL_SMP_SUPPORT cyg_test_dump_thread_stack_stats( "Startup, main stack", thread[0] ); cyg_test_dump_interrupt_stack_stats( "Startup" ); cyg_test_dump_idlethread_stack_stats( "Startup" ); cyg_test_clear_interrupt_stack(); #endif diag_printf("\neCos Kernel Timings\n"); diag_printf("Notes: all times are in microseconds (.000001) unless otherwise stated\n"); #ifdef STATS_WITHOUT_FIRST_SAMPLE diag_printf(" second line of results have first sample removed\n"); #endif cyg_thread_delay(2); // Make sure the clock is actually running ns_per_system_clock = 1000000/rtc_resolution[1]; wait_for_tick(); for (i = 0; i < nsamples; i++) { HAL_CLOCK_READ(&tv[i]); } tv0 = 0; for (i = 1; i < nsamples; i++) { tv0 += tv[i] - tv[i-1]; } end_of_test_group(); overhead = tv0 / (nsamples-1); diag_printf("Reading the hardware clock takes %d 'ticks' overhead\n", overhead); diag_printf("... this value will be factored out of all other measurements\n"); // Try and measure how long the clock interrupt handling takes for (i = 0; i < nsamples; i++) { tick0 = cyg_current_time(); while (true) { tick1 = cyg_current_time(); if (tick0 != tick1) break; } HAL_CLOCK_READ(&tv[i]); } tv1 = 0; for (i = 0; i < nsamples; i++) { tv1 += tv[i] * 1000; } tv1 = tv1 / nsamples; tv1 -= overhead; // Adjust out the cost of getting the timer value diag_printf("Clock interrupt took"); show_ticks_in_us(tv1); diag_printf(" microseconds (%d raw clock ticks)\n", tv1/1000); enable_clock_latency_measurement(); ticks = cyg_current_time(); show_test_parameters(); show_times_hdr(); reset_clock_latency_measurement(); run_thread_tests(); run_sched_tests(); run_mutex_tests(); run_mbox_tests(); run_semaphore_tests(); run_counter_tests(); run_flag_tests(); run_alarm_tests(); #ifdef CYG_SCHEDULER_LOCK_TIMINGS Cyg_Scheduler::get_lock_times(&lock_ave, &lock_max); diag_printf("\nMax lock:"); show_ticks_in_us(lock_max); diag_printf(", Ave lock:"); show_ticks_in_us(lock_ave); diag_printf("\n"); #endif #if defined(CYGVAR_KERNEL_COUNTERS_CLOCK_LATENCY) && defined(HAL_CLOCK_LATENCY) // Display latency figures in same format as all other numbers disable_clock_latency_measurement(); clock_ave = (total_clock_latency*1000) / total_clock_interrupts; show_ticks_in_us(clock_ave); show_ticks_in_us(min_clock_latency*1000); show_ticks_in_us(max_clock_latency*1000); show_ticks_in_us(0); diag_printf(" Clock/interrupt latency\n\n"); enable_clock_latency_measurement(); #endif #if defined(CYGVAR_KERNEL_COUNTERS_CLOCK_DSR_LATENCY) && defined(HAL_CLOCK_LATENCY) disable_clock_latency_measurement(); clock_ave = (total_clock_dsr_latency*1000) / total_clock_dsr_calls; show_ticks_in_us(clock_ave); show_ticks_in_us(min_clock_dsr_latency*1000); show_ticks_in_us(max_clock_dsr_latency*1000); show_ticks_in_us(0); diag_printf(" Clock DSR latency\n\n"); enable_clock_latency_measurement(); #endif #ifndef CYGPKG_KERNEL_SMP_SUPPORT disable_clock_latency_measurement(); min_stack = STACK_SIZE; max_stack = 0; total_stack = 0; for (i = 0; i < (int)NTEST_THREADS; i++) { for (j = 0; j < STACK_SIZE; j++) { if (stacks[i][j]) break; } actual_stack = STACK_SIZE-j; if (actual_stack < min_stack) min_stack = actual_stack; if (actual_stack > max_stack) max_stack = actual_stack; total_stack += actual_stack; } for (j = 0; j < STACKSIZE; j++) { if (((char *)stack[0])[j]) break; } diag_printf("%5d %5d %5d (main stack: %5d) Thread stack used (%d total)\n", total_stack/NTEST_THREADS, min_stack, max_stack, STACKSIZE - j, STACK_SIZE); cyg_test_dump_thread_stack_stats( "All done, main stack", thread[0] ); cyg_test_dump_interrupt_stack_stats( "All done" ); cyg_test_dump_idlethread_stack_stats( "All done" ); #endif enable_clock_latency_measurement(); ticks = cyg_current_time(); diag_printf("\nTiming complete - %d ms total\n\n", (int)((ticks*ns_per_system_clock)/1000)); CYG_TEST_PASS_FINISH("Basic timing OK"); } void tm_basic_main( void ) { CYG_TEST_INIT(); if (cyg_test_is_simulator) { nsamples = NSAMPLES_SIM; ntest_threads = NTEST_THREADS_SIM; nthread_switches = NTHREAD_SWITCHES_SIM; nmutexes = NMUTEXES_SIM; nmboxes = NMBOXES_SIM; nsemaphores = NSEMAPHORES_SIM; nscheds = NSCHEDS_SIM; nflags = NFLAGS_SIM; ncounters = NCOUNTERS_SIM; nalarms = NALARMS_SIM; } else { nsamples = NSAMPLES; ntest_threads = NTEST_THREADS; nthread_switches = NTHREAD_SWITCHES; nmutexes = NMUTEXES; nmboxes = NMBOXES; nsemaphores = NSEMAPHORES; nscheds = NSCHEDS; nflags = NFLAGS; ncounters = NCOUNTERS; nalarms = NALARMS; } // Sanity #ifdef WORKHORSE_TEST ntest_threads = max(512, ntest_threads); nmutexes = max(1024, nmutexes); nsemaphores = max(1024, nsemaphores); nmboxes = max(1024, nmboxes); ncounters = max(1024, ncounters); nalarms = max(1024, nalarms); #else ntest_threads = max(64, ntest_threads); nmutexes = max(32, nmutexes); nsemaphores = max(32, nsemaphores); nmboxes = max(32, nmboxes); ncounters = max(32, ncounters); nflags = max(32, nflags); nalarms = max(32, nalarms); #endif new_thread(run_all_tests, 0); Cyg_Scheduler::scheduler.start(); } #ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG externC void cyg_hal_invoke_constructors(); #endif externC void cyg_start( void ) { #ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG cyg_hal_invoke_constructors(); #endif tm_basic_main(); } #else // CYGFUN_KERNEL_API_C externC void cyg_start( void ) { CYG_TEST_INIT(); CYG_TEST_NA("Timing tests require:\n" "CYGFUN_KERNEL_API_C && \n" "CYGSEM_KERNEL_SCHED_MLQUEUE &&\n" "CYGVAR_KERNEL_COUNTERS_CLOCK &&\n" "!CYGDBG_INFRA_DIAG_USE_DEVICE &&\n" "(CYGNUM_KERNEL_SCHED_PRIORITIES > 12)\n"); } #endif // CYGFUN_KERNEL_API_C, etc. // EOF tm_basic.cxx
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