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On Mon, 17 Dec 2007 14:17:26 +0100 Lukas Hejtmanek <xhejtman@ics.muni.cz> wrote: > Hello, > > does /proc/sys/vm/swappiness still work as expected? > # /proc/sys/vm# cat swappiness > 0 > > but scp-ing 2GB file causes many processes are swapped out due to increase of > the file cache size. Why? This is totally catastrophic behaviour on the desktop. > Hmm, which version of the kernel do you compare with ? Seems following patch is the newest one, which changes meaning of swappiness. Now the swap happens even if swappiness=0, when the system memory usage is highly unbalanced or when memory reclaim doesn't make progress. = http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=4106f83a9f86afc423557d0d92ebf4b3f36728c1 = > Is there a way to avoid it except turning off the swap? > Maybe...no. (*) I'm now working on memory resource controller in -mm kernel. please see/try and comments if interested. Thanks, -Kame | ||||||||||
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