Call for regression and performance testing - 8.0
rdivacky at FreeBSD.org
Wed Aug 12 13:02:04 UTC 2009
> Performance testing
> On the performance front, life is always a bit more tricky -- performance
> testing is a subtle art. However, the most clear lessons are that (a)
> testing with diverse workloads and diverse environments is extremely
> important, (b) you should do multiple runs and use ministat(1) to analyze
> results, and (c) that you want to compare apples with apples -- use the
> same hardware/configuration wherever possible. Watch out for annoying nits
> such as partition layout affecting I/O throughput for two different
> installs on the same disk.
> Pick something you think is important to you: bytes/sec over TCP on
> loopback, web hits/sec, NFS ops/sec, disk I/O transactions/sec, and do some
> comparison between 7.2 and 8.0. If you find improvement -- great! If you
> find a regression, please start a thread on current@ to help get it
> diagnosed. And if you want help doing performance measurement for a
> particular workload that isn't well studied, send some e-mail to
> performance@ to ask for advice on how best to measure it.
what happened to the performance tracking project? that would ease
finding performance regressions...
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