[Devel] Re: [RFC] mm-controller

[Paul Menage]

On 6/22/07, Vaidyanathan Srinivasan <svaidy at linux.vnet.ibm.com> wrote:
>
> Merging both limits will eliminate the issue, however we would need
> individual limits for pagecache and RSS for better control.  There are
> use cases for pagecache_limit alone without RSS_limit like the case of
> database application using direct IO, backup applications and
> streaming applications that does not make good use of pagecache.
>

If streaming applications would otherwise litter the pagecache with
unwanted data, then limiting their total memory footprint (with a
single limit) and forcing them to drop old data sooner sounds like a
great idea.

Paul