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Date: Thu, 28 Oct 2010 12:05:32 +0900 From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> To: Pawan Singh <pawan@...ger.org> Cc: linux-kernel@...r.kernel.org Subject: Re: Tweaking swap algorithm under constrained memory usage On Wed, 27 Oct 2010 19:58:00 -0700 Pawan Singh <pawan@...ger.org> wrote: > > > > Recent kernel (2.6.28-) has splited LRUs as > > - active/inactive ANON > > - active/inactive FILE > > - LOCKED (UNEVICTABLE) ---(new) > > Thanks for the reply. Does that mean that in 2.6.28 kernel, kswapd > will modify its thresholds so that it only looks at active/inactive > ANON? > kswapd's threshold is not modifled. But because UNEVICTABLE LRU is not scanned by kswapd, time consumption of kswapd is dramatically reduced. About kswapd trigger, IIUC, /proc/sys/vm/min_free_kbytes is one. Thanks, -Kame -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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