Re: [RFC][PATCH] the proposal of improve page reclaim by throttle

From: KOSAKI Motohiro
Date: Thu Feb 21 2008 - 05:55:52 EST


Hi Kim-san,

Thank you very much.
btw, what different between <test 1> and <test 2>?

> It was a very interesting result.
> In embedded system, your patch improve performance a little in case
> without noswap(normal case in embedded system).
> But, more important thing is OOM occured when I made 240 process
> without swap device and vanilla kernel.
> Then, I applied your patch, it worked very well without OOM.

Wow, it is very interesting result!
I am very happy.

> I think that's why zone's page_scanned was six times greater than
> number of lru pages.
> At result, OOM happened.

please repost question with change subject.
i don't know reason of vanilla kernel behavior, sorry.
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