Hi Borislav, At Thu, 26 Feb 2015 19:13:38 +0100, Borislav Petkov wrote: > > Hi all, > > So this alternatives patchset breaks perf bench mem, here are a couple > of patches ontop, you guys tell me whether it makes sense. I wanted to > make it run all memset/memcpy routines so here are a couple of patches > which do this: > > ./perf bench mem memset -l 20MB -r all > # Running 'mem/memset' benchmark: > Routine default (Default memset() provided by glibc) > # Copying 20MB Bytes ... > > 1.136000 GB/Sec > 6.026304 GB/Sec (with prefault) > Routine x86-64-unrolled (unrolled memset() in arch/x86/lib/memset_64.S) > # Copying 20MB Bytes ... > > 5.333493 GB/Sec > 5.633473 GB/Sec (with prefault) > Routine x86-64-stosq (movsq-based memset() in arch/x86/lib/memset_64.S) > # Copying 20MB Bytes ... > > 5.828484 GB/Sec > 5.851183 GB/Sec (with prefault) > Routine x86-64-stosb (movsb-based memset() in arch/x86/lib/memset_64.S) > # Copying 20MB Bytes ... > > 5.553384 GB/Sec > 5.956465 GB/Sec (with prefault) > > This way you can see all results by executing one command only with "-r > all". > > Patches coming as a reply to this message.
I'm not sure I'm a suitable person for reviewing your patch, but I tested this patchset for perf bench with your latest (v2) patchset for x86 alternatives. It looks good to me. Reviewed-by: Hitoshi Mitake <[email protected]> Thanks, Hitoshi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
