Messages in this thread | | | Subject | Re: [PATCH 1/2 -tip] perf_counter: Add generalized hardware vectored co-processor support for AMD and Intel Corei7/Nehalem | From | Jaswinder Singh Rajput <> | Date | Fri, 03 Jul 2009 13:08:56 +0530 |
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Hello Ingo,
On Thu, 2009-07-02 at 15:14 +0530, Jaswinder Singh Rajput wrote: > This output is from AMD box: > > $ ./perf stat -e add -e multiply -e divide -e vec-idle-cycles -e vec-stall-cycles -e vec-ops -- ls -lR /usr/include/ > /dev/null > > Performance counter stats for 'ls -lR /usr/include/': > > 4218 vec-adds (scaled from 66.60%) > 7426 vec-muls (scaled from 66.67%) > 5441 vec-divs (scaled from 66.29%) > 821982187 vec-idle-cycles (scaled from 66.45%) > 2681 vec-stall-cycles (scaled from 67.11%) > 7887 vec-ops (scaled from 66.88%) > > 0.417614573 seconds time elapsed > > $ ./perf stat -e add -e multiply -e divide -e vec-idle-cycles -e vec-stall-cycles -e vec-ops -- /usr/bin/rhythmbox ~jaswinder/Music/singhiskinng.mp3 > > Performance counter stats for '/usr/bin/rhythmbox /home/jaswinder/Music/singhiskinng.mp3': > > 17552264 vec-adds (scaled from 66.28%) > 19715258 vec-muls (scaled from 66.63%) > 15862733 vec-divs (scaled from 66.82%) > 23735187095 vec-idle-cycles (scaled from 66.89%) > 11353159 vec-stall-cycles (scaled from 66.90%) > 36628571 vec-ops (scaled from 66.48%) > > 298.350012843 seconds time elapsed > > $ ./perf stat -e add -e multiply -e divide -e vec-idle-cycles -e vec-stall-cycles -e vec-ops -- /usr/bin/vlc ~jaswinder/Videos/Linus_Torvalds_interview_with_Charlie_Rose_Part_1.flv > > Performance counter stats for '/usr/bin/vlc /home/jaswinder/Videos/Linus_Torvalds_interview_with_Charlie_Rose_Part_1.flv': > > 20177177044 vec-adds (scaled from 66.63%) > 34101687027 vec-muls (scaled from 66.64%) > 3984060862 vec-divs (scaled from 66.71%) > 26349684710 vec-idle-cycles (scaled from 66.65%) > 9052001905 vec-stall-cycles (scaled from 66.66%) > 76440734242 vec-ops (scaled from 66.71%) > > 272.523058097 seconds time elapsed > > $ ./perf list shows vector events like : > > vec-adds OR add [Hardware vector event] > vec-muls OR multiply [Hardware vector event] > vec-divs OR divide [Hardware vector event] > vec-idle-cycles OR vec-empty-cycles [Hardware vector event] > vec-stall-cycles OR vec-busy-cycles [Hardware vector event] > vec-ops OR vec-operations [Hardware vector event] > > Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> > --- > arch/x86/kernel/cpu/perf_counter.c | 45 +++++++++++++++++++++++++++++ > include/linux/perf_counter.h | 15 ++++++++++ > kernel/perf_counter.c | 1 + > tools/perf/util/parse-events.c | 55 ++++++++++++++++++++++++++++++++++++ > 4 files changed, 116 insertions(+), 0 deletions(-) > > diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c > index 36c3dc7..48f28b7 100644 > --- a/arch/x86/kernel/cpu/perf_counter.c > +++ b/arch/x86/kernel/cpu/perf_counter.c > @@ -372,6 +372,22 @@ static const u64 atom_hw_cache_event_ids > }, > }; > > +/* > + * Generalized hw vectored co-processor event table > + */ > + > +static u64 __read_mostly hw_vector_event_ids[PERF_COUNT_HW_VECTOR_MAX]; > + > +static const u64 nehalem_hw_vector_event_ids[] = > +{ > + [PERF_COUNT_HW_VECTOR_ADD] = 0x01B1, /* UOPS_EXECUTED.PORT0 */ > + [PERF_COUNT_HW_VECTOR_MULTIPLY] = 0x0214, /* ARITH.MUL */ > + [PERF_COUNT_HW_VECTOR_DIVIDE] = 0x0114, /* ARITH.CYCLES_DIV_BUSY */ > + [PERF_COUNT_HW_VECTOR_IDLE_CYCLES] = 0x0, > + [PERF_COUNT_HW_VECTOR_STALL_CYCLES] = 0x60A2, /* RESOURCE_STALLS.FPCW|MXCSR*/ > + [PERF_COUNT_HW_VECTOR_OPS] = 0x0710, /* FP_COMP_OPS_EXE.X87|MMX|SSE_FP*/ > +}; > +
Have you tested this patch on Intel Corei7/Nehalem.
Thanks, -- JSR
http://userweb.kernel.org/~jaswinder/
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