Messages in this thread | | | Date | Sat, 22 Mar 2003 12:08:56 -0500 | Subject | benchmark anobjrmap with 2.5.65-mm2 | From | rwhron@earthlin ... |
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Anonymous objrmap patches appear to several workloads a little for uniprocessor K6/2 475 mhz with 2 ide disks and 384 MB ram.
Build times for autoconf (a fork test), kernel, and perl.
autoconf kernel perl 2.5.65 3845 1641 1348 seconds 2.5.65-mm1 3898 1646 1326 2.5.65-mm2 3895 1582 1312 2.5.65-mm2-anobjrmap 3824 1614 1284
autoconf and perl builds were faster with anon obj rmap. kernel build was not. kernel build uses pipe more than autoconf/perl build. Could be the fact there was only one sample too.
Lmbench pipe latency and bandwidth don't provide an obvious explanation why kernel build was slower with anobjrmap.
*Local* Communication latencies in microseconds - smaller is better
kernel Pipe 2.5.65 15.36 ms 2.5.65-mm1 15.80 2.5.65-mm2 15.21 2.5.65-mm2-anobjrmap 14.11
*Local* Communication bandwidths in MB/s - bigger is better
kernel Pipe 2.5.65 64.5 MB/second 2.5.65-mm1 63.3 2.5.65-mm2 65.9 2.5.65-mm2-anobjrmap 65.1
I'm running 2.5.65-mm3 now and will watch how kernel build goes there.
AIM7 workloads were generally a hair faster with anobjrmap.
More benchmarks on recent kernels at: http://home.earthlink.net/~rwhron/kernel/latest.html
Irman process load starvation still appears in 2.5.65 and 2.5.65-mm[12].
-- Randy Hron http://home.earthlink.net/~rwhron/kernel/bigbox.html
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