> Maybe Randy Hron (added to Cc) can find some spare time
> to benchmark these sometime before the summit too[1].
dbench isn't scaling as well with the -rmap13b patch.
With 128 processes, dbench throughput is less than 1/3
of mainline.
dbench ext2 32 processes Average High Low
2.5.24 28.24 28.84 27.30 mb/sec
2.5.24-rmap13b 21.64 23.50 19.71
dbench ext2 128 processes Average High Low
2.5.24 19.32 21.05 18.05
2.5.24-rmap13b 5.34 5.38 5.30
tiobench:
Sequential reads, rmap had about 10% more throughput
and lower max latency.
For random reads, throughput was lower and max latency
was higher with rmap.
Lmbench:
Most metrics look better with rmap. Exceptions
are fork/exec latency and mmap latency. mmap
latency was 18% higher with rmap.
Autoconf build (fork test) was about 5% faster
without rmap.
Details at:
http://home.earthlink.net/~rwhron/kernel/latest.html
-- Randy Hron- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sun Jun 30 2002 - 22:00:09 EST