> On 02 Mar 2017, at 06:27, Bruce Evans <b...@optusnet.com.au> wrote: > > On Wed, 1 Mar 2017, Conrad Meyer wrote: > >> On my laptop (Intel(R) Core(TM) i5-3320M CPU — Ivy Bridge) I still see >> a little worse performance with this patch. Please excuse the ugly >> graphs, I don't have a better graphing tool set up at this time: >> >> https://people.freebsd.org/~cem/crc32/sse42_bde.png >> https://people.freebsd.org/~cem/crc32/sse42_bde_log.png > > Try doubling the loop sizes. There shouldn't be any significant difference > above size 3*LONG unless LONG is too small. Apparently it is too small for > older CPUs.
Many thx Bruce & Conrad for your work on this ! My two cents, big chunks speed sounds (really) important as it will impact data digest enabled iSCSI throughput. If needed, I could help with some benchmarks on my servers : Intel(R) Xeon(R) CPU E5-2620 v3 @ 2.40GHz Thank you ! _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
