# $Id: perf.tcl 516 2013-05-05 21:24:52Z mueller $
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# $Id: perf.tcl 516 2013-05-05 21:24:52Z mueller $
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#
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#
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# Copyright 2011- by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
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# Copyright 2011- by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
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#
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#
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# This program is free software; you may redistribute and/or modify it under
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# This program is free software; you may redistribute and/or modify it under
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# the terms of the GNU General Public License as published by the Free
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# the terms of the GNU General Public License as published by the Free
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# Software Foundation, either version 2, or at your option any later version.
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# Software Foundation, either version 2, or at your option any later version.
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#
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#
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# This program is distributed in the hope that it will be useful, but
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
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# WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# for complete details.
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# for complete details.
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#
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#
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# Revision History:
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# Revision History:
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# Date Rev Version Comment
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# Date Rev Version Comment
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# 2011-04-17 376 1.0 Initial version
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# 2011-04-17 376 1.0 Initial version
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#
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#
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package provide tst_rlink 1.0
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package provide tst_rlink 1.0
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namespace eval tst_rlink {
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namespace eval tst_rlink {
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#
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#
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# perf_wtlam: determine wtlam latency using timer.0
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# perf_wtlam: determine wtlam latency using timer.0
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#
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#
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proc perf_wtlam {{tmax 1000}} {
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proc perf_wtlam {{tmax 1000}} {
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if {$tmax < 1} { error "-E: perf_wtlam: tmax argument must be >= 1" }
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if {$tmax < 1} { error "-E: perf_wtlam: tmax argument must be >= 1" }
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set rval "delay latency"
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set rval "delay latency"
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rlc exec -init 0xff [regbld rlink::INIT anena]
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rlc exec -init 0xff [regbld rlink::INIT anena]
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for {set dly 250} {$dly <= 10000} {incr dly 250} {
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for {set dly 250} {$dly <= 10000} {incr dly 250} {
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rlc exec \
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rlc exec \
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-wreg timer.0 0 \
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-wreg timer.0 0 \
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-wreg timer.1 0
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-wreg timer.1 0
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rlc exec -attn
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rlc exec -attn
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set tbeg [clock clicks -milliseconds]
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set tbeg [clock clicks -milliseconds]
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rlc exec -wreg timer.0 $dly
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rlc exec -wreg timer.0 $dly
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for {set i 1} {1} {incr i} {
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for {set i 1} {1} {incr i} {
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rlc wtlam 1.
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rlc wtlam 1.
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rlc exec \
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rlc exec \
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-attn \
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-attn \
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-wreg timer.0 $dly
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-wreg timer.0 $dly
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set trun [expr {[clock clicks -milliseconds] - $tbeg}]
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set trun [expr {[clock clicks -milliseconds] - $tbeg}]
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if {$trun > $tmax} { break }
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if {$trun > $tmax} { break }
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}
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}
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set ms [expr {double($trun) / double($i)}]
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set ms [expr {double($trun) / double($i)}]
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append rval [format "\n%5d %6.2f" $dly $ms]
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append rval [format "\n%5d %6.2f" $dly $ms]
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}
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}
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rlc exec -init 0xff [regbld rlink::INIT {anena 0}]
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rlc exec -init 0xff [regbld rlink::INIT {anena 0}]
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return $rval
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return $rval
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}
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}
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}
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}
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