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Re: [Valgrind-users] my cache factoring saga continues
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From: Josef W. <Jos...@gm...> - 2014-07-07 07:57:24
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Am 07.07.2014 01:28, schrieb Jerry Scharf: > Hi again, > > This is just such an awful thing to be doing but such are the cards I get handed. > > The program I am trying to measure the cache performance on is actually a win32 progran that I am running under wine on redhat linux. I thought for a while the problem might have been that I had a stripped version of the program and that was causing a problem. After much aggravation, wine is now built locally with -g -O so I can debug if really necessary. > > When I run it under cachegrind, it doesn't seem to generate the statistics. I definitely do not want to just run the "wine" binary within the simulator, as this is most probable just a startup wrapper. Try with "--trace-children=yes". This should give you an output file for every process started during the program run. Josef > > here is the wine program: > $ file `which wine` > /usr/local/bin/wine: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, not stripped > > here is the run: > $ valgrind --tool=cachegrind --LL=16777216,16,64 wine ../../../../Program\ Files/LTC/LTspiceIV/scad3.exe -wine -b xxx.cir > ==13347== Cachegrind, a cache and branch-prediction profiler > ==13347== Copyright (C) 2002-2012, and GNU GPL'd, by Nicholas Nethercote et al. > ==13347== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info > ==13347== Command: wine ../../../../Program\ Files/LTC/LTspiceIV/scad3.exe -wine -b xxx.cir > ==13347== > --13347-- warning: Unknown Intel cache config value (0x63), ignoring > --13347-- warning: L3 cache found, using its data for the LL simulation. > ==13347== Auto-detected LL cache configuration not supported: Cache set count is not a power of two. > ==13347== LL: 26,214,400 B, 20-way, 64 B lines > > that's the end of the output. On other programs, there is the stats and miss percentage. > valgrind --tool=cachegrind --LL=16777216,16,64 pwd > ==13662== Cachegrind, a cache and branch-prediction profiler > ==13662== Copyright (C) 2002-2012, and GNU GPL'd, by Nicholas Nethercote et al. > ==13662== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info > ==13662== Command: pwd > ==13662== > --13662-- warning: Unknown Intel cache config value (0x63), ignoring > --13662-- warning: L3 cache found, using its data for the LL simulation. > ==13662== Auto-detected LL cache configuration not supported: Cache set count is not a power of two. > ==13662== LL: 26,214,400 B, 20-way, 64 B lines > /yyy/.wine/drive_c/users/root/phitest/release > ==13662== > ==13662== I refs: 196,379 > ==13662== I1 misses: 1,003 > ==13662== LLi misses: 990 > ==13662== I1 miss rate: 0.51% > ==13662== LLi miss rate: 0.50% > ==13662== > ==13662== D refs: 66,222 (50,912 rd + 15,310 wr) > ==13662== D1 misses: 2,464 ( 2,099 rd + 365 wr) > ==13662== LLd misses: 1,936 ( 1,603 rd + 333 wr) > ==13662== D1 miss rate: 3.7% ( 4.1% + 2.3% ) > ==13662== LLd miss rate: 2.9% ( 3.1% + 2.1% ) > ==13662== > ==13662== LL refs: 3,467 ( 3,102 rd + 365 wr) > ==13662== LL misses: 2,926 ( 2,593 rd + 333 wr) > ==13662== LL miss rate: 1.1% ( 1.0% + 2.1% ) > > This works with both 32 and 64 bit executables I have tested, but not wine. The program has successfully run and generated the right output. > > > what can I do? > > thanks, > jerry > > ------------------------------------------------------------------------------ > Open source business process management suite built on Java and Eclipse > Turn processes into business applications with Bonita BPM Community Edition > Quickly connect people, data, and systems into organized workflows > Winner of BOSSIE, CODIE, OW2 and Gartner awards > http://p.sf.net/sfu/Bonitasoft > _______________________________________________ > Valgrind-users mailing list > Val...@li... > https://lists.sourceforge.net/lists/listinfo/valgrind-users > |
