* Vivek Goyal <vgo...@redhat.com> [2010-03-17 09:34:07]:
> > >
> > > root cgroup
> > > ==========
> > > #time dd if=/dev/zero of=/root/zerofile bs=4K count=1M
> > > 4294967296 bytes (4.3 GB) copied, 56.098 s, 76.6 MB/s
> > >
> > > real 0m56.614s
> > >
> > > test1 cgroup with memory limit 100M
> > > ===================================
> > > # time dd if=/dev/zero of=/root/zerofile1 bs=4K count=1M
> > > 4294967296 bytes (4.3 GB) copied, 19.8097 s, 217 MB/s
> > >
> > > real 0m19.992s
> > >
> >
> > This is strange, did you flish the cache between the two runs?
> > NOTE: Since the files are same, we reuse page cache from the
> > other cgroup.
>
> Files are different. Note suffix "1".
>
Thanks, I'll get the perf output and see what I get.
--
Three Cheers,
Balbir
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