Messages in this thread | | | Date | Wed, 15 Oct 2003 11:58:37 +0200 | From | Stephan von Krawczynski <> | Subject | Re: Strange dcache memory pressure when highmem enabled |
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On Wed, 15 Oct 2003 15:46:11 +1000 Neil Brown <neilb@cse.unsw.edu.au> wrote:
> On Tuesday October 14, akpm@osdl.org wrote: > > Neil Brown <neilb@cse.unsw.edu.au> wrote: > > > > > > I noticed that shrink_caches calls shrink_dcache_memory independant > > > of the classzone that is being shrunk. So if we are trying to > > > shrink ZONE_HIGHMEM, the dentry_cache is shrunk, even though the > > > dentry_cache doesn't live in highmem. However I'm not sure if I have > > > understood the classzones well enough for that observation even to > > > make sense. > > > > Makes heaps of sense. Here's an instabackport of what we did in > > 2.6: > > Hey!!! That's what I call *Service*. > > I'll give it a try tomorrow (let the poor students get a feeling of > stability first before I start changing things again :-) > > > + if (classzone - classzone->zone_pgdat->node_zones < > > + ZONE_HIGHMEM) { > > That's the bit I was missing. I feel that once I fully understand > that, I will be a long way towards understanding the zones memory > management :-) > > NeilBrown
I have another simple advice for you: use the latest 2.4.23-pre. I think I saw your problem and it seems solved.
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