On Fri, Dec 14, 2012 at 05:51:47PM +0000, Tu, Xiaobing wrote: > Resend to fix the typo issue. > > > Subject: [PATCH] [lmk] create a thread for low mem killer instead of using > kswapd > > Currently low mem killer is registered as a shrinker and will be > invoked by kswapd. Since low mem killer and kswapd has different > criteria to invoke to work -- kswap wakes up when watermark of some > certain order in zone is low, and low mem killer should do its job > when free memory is below the min free threshold. In the case that > the kswapd isn't waked up and lmk is, the killed process selected > by lmk will release memory so that the kswapd doesn't need towork > any more.So it is not appropriate to mix them together. A 20 minutes > average vmstat shows that the iowait/page fault has huge improvement. > In this way, it can reduce the chance of ANR due to high iowait. > > orignal: > flt wa > 62.70 2.00 > > with patch > flt wa > 2.32 0.01 > > Signed-off-by: Zhang Di <di.zh...@intel.com> > Signed-off-by: xiaobing tu <xiaobing...@intel.com> > --- > drivers/staging/android/lowmemorykiller.c | 87 > +++++++++++++++++++++++++++-- > mm/page_alloc.c | 7 ++- > mm/vmscan.c | 2 + > 3 files changed, 89 insertions(+), 7 deletions(-)
This patch breaks the build if the android code is not selected, please fix this up and resend if you really need this. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
