Messages in this thread | | | Date | Tue, 11 Aug 2009 11:21:33 -0400 | From | Prarit Bhargava <> | Subject | Re: Help Resource Counters Scale better (v4) |
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Andi Kleen wrote: > Prarit Bhargava <prarit@redhat.com> writes: > >> On a 64p/32G system running 2.6.31-git2-rc5, with RESOURCE_COUNTERS >> > > This is CONFIG_RESOURCE_COUNTERS off at compile time right? > > >> off, "time make -j64" results in >>
^^^ yes. It is off.
>> real 4m54.972s >> user 90m13.456s >> sys 50m19.711s >> >> On the same system, running 2.6.31-git2-rc5, with RESOURCE_COUNTERS on, >> plus Balbir's "Help Resource Counters Scale Better (v3)" patch, and >> this patch, results in >> >> real 4m18.607s >> user 84m58.943s >> sys 50m52.682s >> > > Hmm, so resource counters on with the patch is faster than > CONFIG_RESOURCE_COUNTERS compiled out in real time? That seems > counterintuitive. At best I would expect the patch to break even, but > not be actually faster. >
That is only after one run. I'm doing 10 reboot and build runs right now and will average them out. I'll ping back here with results.
> > Still it looks like the patch is clearly needed. > >
P.
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