Messages in this thread | | | Date | Thu, 4 Dec 2008 01:15:32 +0900 (JST) | Subject | Re: [PATCH 11/11] memcg: show reclaim_stat | From | "KAMEZAWA Hiroyuki" <> |
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Balbir Singh said: > * KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> [2008-12-02 > 18:05:25]: > >> On Mon, 1 Dec 2008 21:19:49 +0900 (JST) >> KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> wrote: >> >> > added following four field to memory.stat file. >> > >> > - recent_rotated_anon >> > - recent_rotated_file >> > - recent_scanned_anon >> > - recent_scanned_file >> > >> > it is useful for memcg reclaim debugging. >> > >> I'll put this under CONFIG_DEBUG_VM. >> > > I think they'll be useful even outside for tasks that need to take > decisions, it will be nice to see what sort of reclaim is going on. There are already pgin/pgout value.
> I > would like to see them outside, there is no cost associated with them > and assuming we'll not change the LRU logic very frequently, we don't > need to be afraid of breaking ABI either :) > There are 2 reasons to put this under DEBUG 1. This is not exported as this value under /proc by global VM management. 2. Few people can explain what this really means. No documentation in Docunemtation/ directory. I can't add precise explanation by myself. As Kosaki wrote, this is for his debug, IMHO.
If you want to show this, please add above two first.
Thanks, -Kame
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