| Date | Tue, 21 Jun 2005 12:54:57 -0700 | From | Andrew Morton <> | Subject | Re: -mm -> 2.6.13 merge status |
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Martin Hicks <mort@wildopensource.com> wrote: > > On Mon, Jun 20, 2005 at 11:54:58PM -0700, Andrew Morton wrote: > > > > vm-early-zone-reclaim > > > > Needs some convincing benchmark numbers to back it up. Otherwise OK. > > The only benchmarks I have for this were included in my last mail to > linux-mm: > > http://marc.theaimsgroup.com/?l=linux-mm&m=111763597218177&w=2 > > Are they convincing? Well, the patch doesn't seem to make the memory > thrashing case much worse ("make -j" kernbench run) which is a good > thing since the VM is trying to reclaim much earlier. > > In the same e-mail I mention that there is a fairly good performance > gain in the optimal case, where processes are tied to a single node and > the node's memory is filled with page cache. With zone reclaim turned > on the "make -j8" kernel build runs in 700 seconds; 735 seconds with > no reclaim.
Ah, OK, I failed to capture that info. (I always have to move the info in the [patch 0/n] email into the first real patch, and this time I didn't)
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