Re: cache limit

[William Lee Irwin III <wli@holomorphy.com>]

On Sun, Aug 24, 2003 at 09:11:17PM -0700, William Lee Irwin III wrote:
>> This is moderately misguided; essentially the only way userspace can
>> utilize RAM at all is via the pagecache. It's not useful to limit this;
>> you probably need inode-highmem or some such nonsense.

On Mon, Aug 25, 2003 at 03:58:47PM -0700, Mike Fedyk wrote:
> Exactly.  Every program you have opened, and all of its libraries will show
> up as pagecache memory also, so seeing a large pagecache in and of itself
> may not be a problem.
> Let's get past the tuning paramenter you want in /proc, and tell us more
> about what you are doing that is causing this problem to be shown.

One thing I thought of after the post was whether they actually had in
mind tunable hard limits on _unmapped_ pagecache, which is, in fact,
useful. OTOH that's largely speculation and we really need them to
articulate the true nature of their problem.


-- wli