Messages in this thread | | | Subject | Re: [RFC][PATCH] update /proc/sys/vm/drop_caches documentation | From | Dave Hansen <> | Date | Wed, 15 Sep 2010 12:27:01 -0700 |
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On Wed, 2010-09-15 at 11:37 -0700, Eric W. Biederman wrote: > > I'm worried that there are users out there experiencing real problems > > that aren't reporting it because "workarounds" like this just paper over > > the issue. > > For what it is worth. I had a friend ask me about a system that had 50% > of it's memory consumed by slab caches. 20GB out of 40GB. The kernel > was suse? 2.6.27 so it's old, but if you are curious. > /proc/sys/vm/drop_caches does nothing in that case.
Was it the reclaimable caches doing it, though? The other really common cause is kmalloc() leaks.
-- Dave
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