/* stats.c -- Various statistics about instruction scheduling etc.
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/* stats.c -- Various statistics about instruction scheduling etc.
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Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
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Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
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This file is part of OpenRISC 1000 Architectural Simulator.
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This file is part of OpenRISC 1000 Architectural Simulator.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <ctype.h>
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#include <string.h>
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#include <string.h>
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#include "abstract.h"
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#include "abstract.h"
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#include "stats.h"
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#include "stats.h"
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#include "sim-config.h"
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#include "sim-config.h"
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#include "sprs.h"
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#include "sprs.h"
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#include "spr_defs.h"
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#include "spr_defs.h"
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struct branchstat {
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struct branchstat {
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int taken;
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int taken;
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int nottaken;
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int nottaken;
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int forward;
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int forward;
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int backward;
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int backward;
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};
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};
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/* See also enum insn_type in abstract.h */
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/* See also enum insn_type in abstract.h */
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const char func_unit_str[30][30] = { "unknown", "exception", "arith", "shift", "compare",
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const char func_unit_str[30][30] = { "unknown", "exception", "arith", "shift", "compare",
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"branch", "jump", "load", "store", "movimm", "move", "extend", "nop", "mac" };
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"branch", "jump", "load", "store", "movimm", "move", "extend", "nop", "mac" };
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struct dstats_entry dstats[DSTATS_LEN]; /* dependency stats */
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struct dstats_entry dstats[DSTATS_LEN]; /* dependency stats */
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struct sstats_entry sstats[SSTATS_LEN]; /* single stats */
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struct sstats_entry sstats[SSTATS_LEN]; /* single stats */
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struct fstats_entry fstats[FSTATS_LEN]; /* functional units stats */
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struct fstats_entry fstats[FSTATS_LEN]; /* functional units stats */
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struct mstats_entry mstats; /* misc units stats */
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struct mstats_entry mstats; /* misc units stats */
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struct cachestats_entry ic_stats; /* instruction cache stats */
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struct cachestats_entry ic_stats; /* instruction cache stats */
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struct cachestats_entry dc_stats; /* data cache stats */
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struct cachestats_entry dc_stats; /* data cache stats */
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struct immustats_entry immu_stats; /* insn mmu stats */
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struct immustats_entry immu_stats; /* insn mmu stats */
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struct dmmustats_entry dmmu_stats; /* data mmu stats */
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struct dmmustats_entry dmmu_stats; /* data mmu stats */
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struct raw_stats raw_stats; /* RAW hazard stats */
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struct raw_stats raw_stats; /* RAW hazard stats */
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/* Dependency */
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/* Dependency */
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int check_depend()
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int check_depend()
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{
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{
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debug(5,"check_depend\n");
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debug(5,"check_depend\n");
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return depend_operands(&icomplet[0], &iqueue[0]);
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return depend_operands(&icomplet[0], &iqueue[0]);
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}
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}
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void addsstats(int item, int cnt_dynamic)
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void addsstats(int item, int cnt_dynamic)
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{
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{
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int i = 0;
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int i = 0;
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while(sstats[i].insn != item && sstats[i].insn >= 0 && i < SSTATS_LEN) i++;
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while(sstats[i].insn != item && sstats[i].insn >= 0 && i < SSTATS_LEN) i++;
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if (i >= SSTATS_LEN - 1) return;
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if (i >= SSTATS_LEN - 1) return;
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if (sstats[i].insn >= 0) {
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if (sstats[i].insn >= 0) {
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sstats[i].cnt_dynamic += cnt_dynamic;
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sstats[i].cnt_dynamic += cnt_dynamic;
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} else {
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} else {
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sstats[i].insn = item;
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sstats[i].insn = item;
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sstats[i].cnt_dynamic = cnt_dynamic;
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sstats[i].cnt_dynamic = cnt_dynamic;
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}
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}
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}
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}
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void adddstats(int item1, int item2, int cnt_dynamic, int depend)
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void adddstats(int item1, int item2, int cnt_dynamic, int depend)
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{
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{
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int i = 0;
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int i = 0;
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debug(3,"adddstats start\n");
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debug(3,"adddstats start\n");
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while((dstats[i].insn1 != item1 || dstats[i].insn2 != item2) && (i < DSTATS_LEN) && dstats[i].insn1 >= 0) i++;
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while((dstats[i].insn1 != item1 || dstats[i].insn2 != item2) && (i < DSTATS_LEN) && dstats[i].insn1 >= 0) i++;
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if (i >= DSTATS_LEN - 1) return;
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if (i >= DSTATS_LEN - 1) return;
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if (dstats[i].insn1 >= 0) {
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if (dstats[i].insn1 >= 0) {
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dstats[i].cnt_dynamic += cnt_dynamic;
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dstats[i].cnt_dynamic += cnt_dynamic;
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dstats[i].depend += depend;
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dstats[i].depend += depend;
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} else {
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} else {
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dstats[i].insn1 = item1;
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dstats[i].insn1 = item1;
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dstats[i].insn2 = item2;
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dstats[i].insn2 = item2;
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dstats[i].cnt_dynamic = cnt_dynamic;
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dstats[i].cnt_dynamic = cnt_dynamic;
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dstats[i].depend = depend;
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dstats[i].depend = depend;
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}
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}
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}
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}
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void addfstats(enum insn_type item1, enum insn_type item2, int cnt_dynamic, int depend)
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void addfstats(enum insn_type item1, enum insn_type item2, int cnt_dynamic, int depend)
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{
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{
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int i = 0;
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int i = 0;
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while(((fstats[i].insn1 != item1) || (fstats[i].insn2 != item2)) &&
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while(((fstats[i].insn1 != item1) || (fstats[i].insn2 != item2)) &&
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(fstats[i].insn1 != it_unknown) &&
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(fstats[i].insn1 != it_unknown) &&
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(i < FSTATS_LEN))
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(i < FSTATS_LEN))
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i++;
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i++;
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if (i >= FSTATS_LEN - 1) return;
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if (i >= FSTATS_LEN - 1) return;
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if ((fstats[i].insn1 == item1) &&
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if ((fstats[i].insn1 == item1) &&
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(fstats[i].insn2 == item2)) {
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(fstats[i].insn2 == item2)) {
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fstats[i].cnt_dynamic += cnt_dynamic;
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fstats[i].cnt_dynamic += cnt_dynamic;
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fstats[i].depend += depend;
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fstats[i].depend += depend;
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}
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}
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else {
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else {
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fstats[i].insn1 = item1;
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fstats[i].insn1 = item1;
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fstats[i].insn2 = item2;
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fstats[i].insn2 = item2;
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fstats[i].cnt_dynamic = cnt_dynamic;
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fstats[i].cnt_dynamic = cnt_dynamic;
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fstats[i].depend = depend;
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fstats[i].depend = depend;
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}
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}
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}
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}
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void initstats()
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void initstats()
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{
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{
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int i;
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int i;
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memset(sstats, 0, sizeof(sstats));
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memset(sstats, 0, sizeof(sstats));
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for (i = 0; i < DSTATS_LEN; i++)
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for (i = 0; i < DSTATS_LEN; i++)
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sstats[i].insn = -1;
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sstats[i].insn = -1;
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memset(dstats, 0, sizeof(dstats));
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memset(dstats, 0, sizeof(dstats));
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for (i = 0; i < DSTATS_LEN; i++)
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for (i = 0; i < DSTATS_LEN; i++)
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dstats[i].insn1 = dstats[i].insn2 = -1;
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dstats[i].insn1 = dstats[i].insn2 = -1;
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memset(fstats, 0, sizeof(fstats));
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memset(fstats, 0, sizeof(fstats));
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memset(&mstats, 0, sizeof(mstats));
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memset(&mstats, 0, sizeof(mstats));
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memset(&ic_stats, 0, sizeof(ic_stats));
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memset(&ic_stats, 0, sizeof(ic_stats));
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memset(&dc_stats, 0, sizeof(dc_stats));
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memset(&dc_stats, 0, sizeof(dc_stats));
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memset(&raw_stats, 0, sizeof(raw_stats));
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memset(&raw_stats, 0, sizeof(raw_stats));
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}
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}
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void printotherstats(int which)
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void printotherstats(int which)
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{
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{
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int i, all = 0, dependall = 0;
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int i, all = 0, dependall = 0;
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printf ("\n");
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printf ("\n");
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if (config.bpb.enabled) {
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if (config.bpb.enabled) {
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struct branchstat bf;
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struct branchstat bf;
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struct branchstat bnf;
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struct branchstat bnf;
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long bf_all, bnf_all;
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long bf_all, bnf_all;
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bf.taken = mstats.bf[1][0] + mstats.bf[1][1];
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bf.taken = mstats.bf[1][0] + mstats.bf[1][1];
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bf.nottaken = mstats.bf[0][0] + mstats.bf[0][1];
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bf.nottaken = mstats.bf[0][0] + mstats.bf[0][1];
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bf.forward = mstats.bf[0][1] + mstats.bf[1][1];
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bf.forward = mstats.bf[0][1] + mstats.bf[1][1];
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bf.backward = mstats.bf[0][0] + mstats.bf[1][0];
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bf.backward = mstats.bf[0][0] + mstats.bf[1][0];
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bf_all = bf.forward + bf.backward;
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bf_all = bf.forward + bf.backward;
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bnf.taken = mstats.bnf[1][0] + mstats.bf[1][1];
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bnf.taken = mstats.bnf[1][0] + mstats.bf[1][1];
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bnf.nottaken = mstats.bnf[0][0] + mstats.bf[0][1];
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bnf.nottaken = mstats.bnf[0][0] + mstats.bf[0][1];
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bnf.forward = mstats.bnf[0][1] + mstats.bf[1][1];
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bnf.forward = mstats.bnf[0][1] + mstats.bf[1][1];
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bnf.backward = mstats.bnf[0][0] + mstats.bf[1][0];
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bnf.backward = mstats.bnf[0][0] + mstats.bf[1][0];
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bnf_all = bnf.forward + bnf.backward;
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bnf_all = bnf.forward + bnf.backward;
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printf("bnf: %d (%d%%) taken,", bf.taken, (bf.taken * 100) / SD(bf_all));
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printf("bnf: %d (%d%%) taken,", bf.taken, (bf.taken * 100) / SD(bf_all));
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printf(" %d (%d%%) not taken,", bf.nottaken, (bf.nottaken * 100) / SD(bf_all));
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printf(" %d (%d%%) not taken,", bf.nottaken, (bf.nottaken * 100) / SD(bf_all));
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printf(" %d (%d%%) forward,", bf.forward, (bf.forward * 100) / SD(bf_all));
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printf(" %d (%d%%) forward,", bf.forward, (bf.forward * 100) / SD(bf_all));
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printf(" %d (%d%%) backward\n", bf.backward, (bf.backward * 100) / SD(bf_all));
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printf(" %d (%d%%) backward\n", bf.backward, (bf.backward * 100) / SD(bf_all));
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printf("bf: %d (%d%%) taken,", bnf.taken, (bnf.taken * 100) / SD(bnf_all));
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printf("bf: %d (%d%%) taken,", bnf.taken, (bnf.taken * 100) / SD(bnf_all));
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printf(" %d (%d%%) not taken,", bnf.nottaken, (bnf.nottaken * 100) / SD(bnf_all));
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printf(" %d (%d%%) not taken,", bnf.nottaken, (bnf.nottaken * 100) / SD(bnf_all));
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printf(" %d (%d%%) forward,", bnf.forward, (bnf.forward * 100) / SD(bnf_all));
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printf(" %d (%d%%) forward,", bnf.forward, (bnf.forward * 100) / SD(bnf_all));
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printf(" %d (%d%%) backward\n", bnf.backward, (bnf.backward * 100) / SD(bnf_all));
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printf(" %d (%d%%) backward\n", bnf.backward, (bnf.backward * 100) / SD(bnf_all));
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printf("StaticBP bnf(%s): correct %d%%\n", config.bpb.sbp_bnf_fwd ? "forward" : "backward",
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printf("StaticBP bnf(%s): correct %d%%\n", config.bpb.sbp_bnf_fwd ? "forward" : "backward",
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(mstats.bnf[0][config.bpb.sbp_bnf_fwd] * 100) / SD(bnf_all));
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(mstats.bnf[0][config.bpb.sbp_bnf_fwd] * 100) / SD(bnf_all));
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printf("StaticBP bf(%s): correct %d%%\n", config.bpb.sbp_bf_fwd ? "forward" : "backward",
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printf("StaticBP bf(%s): correct %d%%\n", config.bpb.sbp_bf_fwd ? "forward" : "backward",
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(mstats.bnf[1][config.bpb.sbp_bf_fwd] * 100) / SD(bf_all));
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(mstats.bnf[1][config.bpb.sbp_bf_fwd] * 100) / SD(bf_all));
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printf("BPB: hit %d (correct %d%%), miss %d\n", mstats.bpb.hit, (mstats.bpb.correct * 100) / SD(mstats.bpb.hit), mstats.bpb.miss);
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printf("BPB: hit %d (correct %d%%), miss %d\n", mstats.bpb.hit, (mstats.bpb.correct * 100) / SD(mstats.bpb.hit), mstats.bpb.miss);
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} else
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} else
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printf("BPB simulation disabled. Enable it to see BPB analysis\n");
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printf("BPB simulation disabled. Enable it to see BPB analysis\n");
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if (config.bpb.btic) {
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if (config.bpb.btic) {
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printf("BTIC: hit %d(%d%%), miss %d\n", mstats.btic.hit, (mstats.btic.hit * 100) / SD(mstats.btic.hit + mstats.btic.miss), mstats.btic.miss);
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printf("BTIC: hit %d(%d%%), miss %d\n", mstats.btic.hit, (mstats.btic.hit * 100) / SD(mstats.btic.hit + mstats.btic.miss), mstats.btic.miss);
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} else
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} else
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printf("BTIC simulation disabled. Enabled it to see BTIC analysis\n");
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printf("BTIC simulation disabled. Enabled it to see BTIC analysis\n");
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if (testsprbits(SPR_UPR, SPR_UPR_ICP)) {
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if (testsprbits(SPR_UPR, SPR_UPR_ICP)) {
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printf("IC read: hit %d(%d%%), miss %d\n", ic_stats.readhit, (ic_stats.readhit * 100) / SD(ic_stats.readhit + ic_stats.readmiss), ic_stats.readmiss);
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printf("IC read: hit %d(%d%%), miss %d\n", ic_stats.readhit, (ic_stats.readhit * 100) / SD(ic_stats.readhit + ic_stats.readmiss), ic_stats.readmiss);
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} else
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} else
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printf("No ICache. Set UPR[ICP]\n");
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printf("No ICache. Set UPR[ICP]\n");
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if (testsprbits(SPR_UPR, SPR_UPR_DCP)) {
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if (testsprbits(SPR_UPR, SPR_UPR_DCP)) {
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printf("DC read: hit %d(%d%%), miss %d\n", dc_stats.readhit, (dc_stats.readhit * 100) / SD(dc_stats.readhit + dc_stats.readmiss), dc_stats.readmiss);
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printf("DC read: hit %d(%d%%), miss %d\n", dc_stats.readhit, (dc_stats.readhit * 100) / SD(dc_stats.readhit + dc_stats.readmiss), dc_stats.readmiss);
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printf("DC write: hit %d(%d%%), miss %d\n", dc_stats.writehit, (dc_stats.writehit * 100) / SD(dc_stats.writehit + dc_stats.writemiss), dc_stats.writemiss);
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printf("DC write: hit %d(%d%%), miss %d\n", dc_stats.writehit, (dc_stats.writehit * 100) / SD(dc_stats.writehit + dc_stats.writemiss), dc_stats.writemiss);
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} else
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} else
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printf("No DCache. Set UPR[DCP]\n");
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printf("No DCache. Set UPR[DCP]\n");
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if (testsprbits(SPR_UPR, SPR_UPR_IMP)) {
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if (testsprbits(SPR_UPR, SPR_UPR_IMP)) {
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printf("IMMU read: hit %d(%d%%), miss %d\n", immu_stats.fetch_tlbhit, (immu_stats.fetch_tlbhit * 100) / SD(immu_stats.fetch_tlbhit + immu_stats.fetch_tlbmiss), immu_stats.fetch_tlbmiss);
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printf("IMMU read: hit %d(%d%%), miss %d\n", immu_stats.fetch_tlbhit, (immu_stats.fetch_tlbhit * 100) / SD(immu_stats.fetch_tlbhit + immu_stats.fetch_tlbmiss), immu_stats.fetch_tlbmiss);
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} else
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} else
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printf("No IMMU. Set UPR[IMP]\n");
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printf("No IMMU. Set UPR[IMP]\n");
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if (testsprbits(SPR_UPR, SPR_UPR_DMP)) {
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if (testsprbits(SPR_UPR, SPR_UPR_DMP)) {
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printf("DMMU read: hit %d(%d%%), miss %d\n", dmmu_stats.loads_tlbhit, (dmmu_stats.loads_tlbhit * 100) / SD(dmmu_stats.loads_tlbhit + dmmu_stats.loads_tlbmiss), dmmu_stats.loads_tlbmiss);
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printf("DMMU read: hit %d(%d%%), miss %d\n", dmmu_stats.loads_tlbhit, (dmmu_stats.loads_tlbhit * 100) / SD(dmmu_stats.loads_tlbhit + dmmu_stats.loads_tlbmiss), dmmu_stats.loads_tlbmiss);
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} else
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} else
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printf("No DMMU. Set UPR[DMP]\n");
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printf("No DMMU. Set UPR[DMP]\n");
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{
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{
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extern int loadcycles, storecycles, nops, nop_maxperiod;
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extern int loadcycles, storecycles;
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printf("Additional LOAD CYCLES: %u STORE CYCLES: %u\n", loadcycles, storecycles);
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printf("Additional LOAD CYCLES: %u STORE CYCLES: %u\n", loadcycles, storecycles);
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printf("l.nop count: %u maxgap: %u\n", nops, nop_maxperiod);
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}
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}
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}
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}
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void printstats(int which)
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void printstats(int which)
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{
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{
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int i, all = 0, dependall = 0;
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int i, all = 0, dependall = 0;
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if (which > 1 && which <= 5 && !config.cpu.dependstats) {
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if (which > 1 && which <= 5 && !config.cpu.dependstats) {
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printf("Hazard analysis disabled. Enable it to see analysis results.\n");
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printf("Hazard analysis disabled. Enable it to see analysis results.\n");
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return;
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return;
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}
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}
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switch (which) {
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switch (which) {
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case 1:
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case 1:
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printf("stats 1: Misc stats\n");
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printf("stats 1: Misc stats\n");
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printotherstats(which);
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printotherstats(which);
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break;
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break;
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case 2:
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case 2:
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printf ("stats 2: Instruction usage\n");
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printf ("stats 2: Instruction usage\n");
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for(i = 0; i < SSTATS_LEN; i++)
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for(i = 0; i < SSTATS_LEN; i++)
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all += sstats[i].cnt_dynamic;
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all += sstats[i].cnt_dynamic;
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for(i = 0; i < SSTATS_LEN; i++)
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for(i = 0; i < SSTATS_LEN; i++)
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if (sstats[i].cnt_dynamic)
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if (sstats[i].cnt_dynamic)
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printf(" %-15s used %6dx (%5.1f%%)\n", insn_name(sstats[i].insn), sstats[i].cnt_dynamic, (sstats[i].cnt_dynamic * 100.)/SD(all));
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printf(" %-15s used %6dx (%5.1f%%)\n", insn_name(sstats[i].insn), sstats[i].cnt_dynamic, (sstats[i].cnt_dynamic * 100.)/SD(all));
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printf("%d instructions (dynamic, single stats)\n", all);
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printf("%d instructions (dynamic, single stats)\n", all);
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break;
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break;
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case 3:
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case 3:
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printf ("stats 3: Instruction dependencies\n");
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printf ("stats 3: Instruction dependencies\n");
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for(i = 0; i < DSTATS_LEN; i++) {
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for(i = 0; i < DSTATS_LEN; i++) {
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all += dstats[i].cnt_dynamic;
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all += dstats[i].cnt_dynamic;
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dependall += dstats[i].depend;
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dependall += dstats[i].depend;
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}
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}
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for(i = 0; i < DSTATS_LEN; i++)
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for(i = 0; i < DSTATS_LEN; i++)
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if (dstats[i].cnt_dynamic) {
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if (dstats[i].cnt_dynamic) {
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char temp[100];
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char temp[100];
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sprintf(temp, "%s, %s ", insn_name(dstats[i].insn1), insn_name(dstats[i].insn2));
|
sprintf(temp, "%s, %s ", insn_name(dstats[i].insn1), insn_name(dstats[i].insn2));
|
printf(" %-30s %6dx (%5.1f%%)", temp, dstats[i].cnt_dynamic, (dstats[i].cnt_dynamic * 100.)/SD(all));
|
printf(" %-30s %6dx (%5.1f%%)", temp, dstats[i].cnt_dynamic, (dstats[i].cnt_dynamic * 100.)/SD(all));
|
printf(" depend: %5.1f%%\n", (dstats[i].depend * 100.) / dstats[i].cnt_dynamic);
|
printf(" depend: %5.1f%%\n", (dstats[i].depend * 100.) / dstats[i].cnt_dynamic);
|
}
|
}
|
|
|
printf("%d instructions (dynamic, dependency stats) depend: %d%%\n", all, (dependall * 100) / SD(all));
|
printf("%d instructions (dynamic, dependency stats) depend: %d%%\n", all, (dependall * 100) / SD(all));
|
break;
|
break;
|
|
|
case 4:
|
case 4:
|
printf("stats 4: Functional units dependencies\n");
|
printf("stats 4: Functional units dependencies\n");
|
for(i = 0; i < FSTATS_LEN; i++) {
|
for(i = 0; i < FSTATS_LEN; i++) {
|
all += fstats[i].cnt_dynamic;
|
all += fstats[i].cnt_dynamic;
|
dependall += fstats[i].depend;
|
dependall += fstats[i].depend;
|
}
|
}
|
|
|
for(i = 0; i < FSTATS_LEN; i++)
|
for(i = 0; i < FSTATS_LEN; i++)
|
if (fstats[i].cnt_dynamic) {
|
if (fstats[i].cnt_dynamic) {
|
char temp[100];
|
char temp[100];
|
sprintf(temp, "%s, %s", func_unit_str[fstats[i].insn1], func_unit_str[fstats[i].insn2]);
|
sprintf(temp, "%s, %s", func_unit_str[fstats[i].insn1], func_unit_str[fstats[i].insn2]);
|
printf(" %-30s %6dx (%5.1f%%)", temp, fstats[i].cnt_dynamic, (fstats[i].cnt_dynamic * 100.)/SD(all));
|
printf(" %-30s %6dx (%5.1f%%)", temp, fstats[i].cnt_dynamic, (fstats[i].cnt_dynamic * 100.)/SD(all));
|
printf(" depend: %5.1f%%\n", (fstats[i].depend * 100.) / fstats[i].cnt_dynamic);
|
printf(" depend: %5.1f%%\n", (fstats[i].depend * 100.) / fstats[i].cnt_dynamic);
|
}
|
}
|
printf ("%d instructions (dynamic, functional units stats) depend: %d%%\n\n", all, (dependall * 100) / SD(all));
|
printf ("%d instructions (dynamic, functional units stats) depend: %d%%\n\n", all, (dependall * 100) / SD(all));
|
break;
|
break;
|
|
|
case 5:
|
case 5:
|
printf("stats 5: Raw register usege over time\n");
|
printf("stats 5: Raw register usege over time\n");
|
for(i = 0; (i < config.cpu.raw_range); i++)
|
for(i = 0; (i < config.cpu.raw_range); i++)
|
printf(" Register set and reused in %d. cycle: %d cases\n", i, raw_stats.range[i]);
|
printf(" Register set and reused in %d. cycle: %d cases\n", i, raw_stats.range[i]);
|
break;
|
break;
|
default:
|
default:
|
printf ("Please specify a stats group (1-5).\n");
|
printf ("Please specify a stats group (1-5).\n");
|
break;
|
break;
|
}
|
}
|
#if 0
|
#if 0
|
printf("Byte ADD: %d instructions\n", mstats.byteadd);
|
printf("Byte ADD: %d instructions\n", mstats.byteadd);
|
#endif
|
#endif
|
}
|
}
|
|
|
