Messages in this thread | | | From | Johannes Weiner <> | Subject | Re: quicklists confuse meminfo | Date | Sun, 09 Mar 2008 13:03:29 +0100 |
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Hi,
Ingo Molnar <mingo@elte.hu> writes:
> hm. I think we should not let this much RAM hang around in a > special-purpose allocator like quicklists. Shouldnt the quicklists be > temporary in nature, and be trimmed much more agressively? > > in fact, we have a check_pgt_cache() call in cpu_idle(), which does: > > quicklist_trim(0, pgd_dtor, 25, 16); > > but it appears we dont do quicklist trimming anywhere else! So if a > system has no idle time, the quicklist can grow unbounded, and that's a > real memory leak IMO.
It is also called from tlbu_finish_mmu().
Hannes
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