On Tue, Aug 24, 2010 at 2:07 PM, Iram Shahzad <iram.shahzad@xxxxxxxxxxxxxx> wrote: >> One question is, why kswapd won't proceed after isolating all the pages? >> If it has done with the isolated pages, we'll see growing inactive_anon >> numbers. >> >> /proc/vmstat should give more clues on any possible page reclaim >> activities. Iram, would you help post it? > > I am not sure which point of time are you interested in, so I am > attaching /proc/vmstat log of 3 points. > > too_many_isolated_vmstat_before_frag.txt > This one is taken before I ran my test app which attempts > to make fragmentation > too_many_isolated_vmstat_before_compaction.txt > This one is taken after running the test app and before > running compaction. > too_many_isolated_vmstat_during_compaction.txt > This one is taken a few minutes after running compaction. > To take this I ran compaction in background. > > Thanks > Iram > Hmm.. Never happens reclaim. Strange. In addtion, pgpgin is always 4. pgpgin 4 pgpgout 0 Is it possible? What kinds of filesystem do you use? Do you boot from NFS? Do your system have any non-mainline(ie, doesn't merged into linux kernel tree) driver, file system or any feature? Maybe your config file can answer this questions. Thanks. -- Kind regards, Minchan Kim -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href