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Re: [PATCH] splitlru: memcg swapbacked pages active

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From: KOSAKI Motohiro
Subject: Re: [PATCH] splitlru: memcg swapbacked pages active
Date: Sunday, June 29, 2008 - 1:19 am

> add_to_page_cache_lru puts PageSwapBacked pages on the active_anon lru,

I don't think so.

in global lru, active vs inactive anon ratio is controlled by 
inactive_anon_is_low().
but memcg doesn't have any sililar things.

thus, this patch increase active anon. and too many active page cause
decrease reclaim throuput.

yes, We should implement SEQ replacement reclaim (like global reclaim)
for memcg.
I'm working on this.



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Messages in current thread:
[PATCH] splitlru: shmem_getpage SetPageSwapBacked sooner, Hugh Dickins, (Sat Jun 28, 5:20 pm)
[PATCH] splitlru: memcg swapbacked pages active, Hugh Dickins, (Sat Jun 28, 5:22 pm)
[PATCH] splitlru: BDI_CAP_SWAP_BACKED, Hugh Dickins, (Sat Jun 28, 5:24 pm)
Re: [PATCH] splitlru: shmem_getpage SetPageSwapBacked sooner, KOSAKI Motohiro, (Sun Jun 29, 1:09 am)
Re: [PATCH] splitlru: memcg swapbacked pages active, KOSAKI Motohiro, (Sun Jun 29, 1:19 am)
Re: [PATCH] splitlru: BDI_CAP_SWAP_BACKED, KOSAKI Motohiro, (Sun Jun 29, 1:48 am)
Re: [PATCH] splitlru: memcg swapbacked pages active, Hugh Dickins, (Sun Jun 29, 5:20 am)
Re: [PATCH] splitlru: memcg swapbacked pages active, KOSAKI Motohiro, (Sun Jun 29, 5:58 am)
Re: [PATCH] splitlru: memcg swapbacked pages active, Hugh Dickins, (Sun Jun 29, 6:51 am)
Re: [PATCH] splitlru: BDI_CAP_SWAP_BACKED, Rik van Riel, (Sun Jun 29, 8:16 am)
Re: [PATCH] splitlru: memcg swapbacked pages active, KAMEZAWA Hiroyuki, (Sun Jun 29, 7:44 pm)
Re: [PATCH] splitlru: BDI_CAP_SWAP_BACKED, KAMEZAWA Hiroyuki, (Sun Jun 29, 7:53 pm)
[RFC][PATCH] memcg: change shmem handler., KAMEZAWA Hiroyuki, (Mon Jun 30, 1:36 am)
Re: [PATCH] splitlru: memcg swapbacked pages active, Hugh Dickins, (Mon Jun 30, 12:19 pm)
Re: [PATCH] splitlru: BDI_CAP_SWAP_BACKED, Hugh Dickins, (Mon Jun 30, 12:23 pm)
Re: [PATCH] splitlru: BDI_CAP_SWAP_BACKED, Rik van Riel, (Mon Jun 30, 12:49 pm)
Re: [RFC][PATCH] memcg: change shmem handler., Hugh Dickins, (Mon Jun 30, 12:52 pm)
Re: [PATCH] splitlru: BDI_CAP_SWAP_BACKED, Hugh Dickins, (Mon Jun 30, 1:55 pm)
Re: [PATCH] splitlru: BDI_CAP_SWAP_BACKED, Rik van Riel, (Mon Jun 30, 2:17 pm)
Re: Re: [RFC][PATCH] memcg: change shmem handler., kamezawa.hiroyu, (Mon Jun 30, 5:56 pm)
Re: Re: Re: [RFC][PATCH] memcg: change shmem handler., kamezawa.hiroyu, (Mon Jun 30, 6:06 pm)
[RFC][PATCH] memcg: shmem swap cache, KAMEZAWA Hiroyuki, (Tue Jul 1, 7:16 pm)
Re: [RFC][PATCH] memcg: change shmem handler., Balbir Singh, (Thu Jul 3, 12:15 am)
Re: [RFC][PATCH] memcg: change shmem handler., KAMEZAWA Hiroyuki, (Thu Jul 3, 12:56 am)