linux-kernel - Re: sys_epoll_wait high CPU load in 2.6.37

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Date:	Wed, 26 Jan 2011 19:18:20 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Davide Libenzi <davidel@...ilserver.org>
Cc:	Shawn Bohrer <shawn.bohrer@...il.com>,
	Simon Kirby <sim@...tway.ca>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: sys_epoll_wait high CPU load in 2.6.37

Le mercredi 26 janvier 2011 à 10:06 -0800, Davide Libenzi a écrit :

> Eric, if you look at fs/select.c (~line 925), poll does exactly the same 
> thing as epoll do.
> It too, ignores the eventual return value of poll_select_set_timeout(), so 
> maybe a little bit more optimized ktime_get_ts+timespec_add_ms could make 
> sense.
> 

OK, I'll post a V3 ;)

Thanks


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