Messages in this thread |  | | Date | Fri, 29 May 2009 21:07:18 -0700 | | From | Andrew Morton <> | | Subject | Re: Performance regressions in 2.6.30-rc7? |
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On Thu, 28 May 2009 22:49:28 +0200 Diego Calleja <diegocg@gmail.com> wrote:
> Hi, phoronix.com has run some benchmarks in 2.6.30-rc7 [1], there're some > good numbers, but there's also a couple of regressions. Some people think > that phoronix benchmarks are not very serious/reliable/meaningful, but i > thought it'd be better to post false warnings than letting real regressions > slip in without notice. > > The regressions would be: > - 7zip MIPS ("7zr b" command) http://www.phoronix.com/data/img/results/linux_2630/1.png > > - tiobench latency (not throughput) using 64MB writes with 32 threads > http://www.phoronix.com/data/img/results/linux_2630/7.png > > -gnupg 2GB file encryption http://www.phoronix.com/data/img/results/linux_2630/3.png > > > Full article: http://www.phoronix.com/scan.php?page=article&item=linux_2630
Those regressions are huge. They appear to be on compute-intensive workloads too.
I wonder if some expensive debugging option turned itself on or something silly like that.
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