Re: [PATCH 0/9] Reduce system disruption due to kswapd V4

2013-05-22 Thread Mel Gorman
On Wed, May 22, 2013 at 09:13:58AM +1000, Dave Chinner wrote: > On Mon, May 13, 2013 at 09:12:31AM +0100, Mel Gorman wrote: > > This series does not fix all the current known problems with reclaim but > > it addresses one important swapping bug when there is background IO. > > > > > >

Re: [PATCH 0/9] Reduce system disruption due to kswapd V4

2013-05-21 Thread Dave Chinner
On Mon, May 13, 2013 at 09:12:31AM +0100, Mel Gorman wrote: > This series does not fix all the current known problems with reclaim but > it addresses one important swapping bug when there is background IO. > > 3.10.0-rc1 3.10.0-rc1 >

Re: [PATCH 0/9] Reduce system disruption due to kswapd V4

2013-05-18 Thread Zlatko Calusic
On 15.05.2013 22:37, Andrew Morton wrote: 3.10.0-rc1 3.10.0-rc1 vanilla lessdisrupt-v4 Page Ins 1234608 101892 Page Outs 1244627211810468 Swap Ins283406

Re: [PATCH 0/9] Reduce system disruption due to kswapd V4

2013-05-16 Thread Mel Gorman
On Thu, May 16, 2013 at 03:54:28PM +0200, Michal Hocko wrote: > On Thu 16-05-13 11:33:45, Mel Gorman wrote: > [...] > > swapin in this case is an indication as to whether we are swap trashing. > > The closer the swapin/swapout ratio is to 0, the worse the > > I guess you meant the ratio is clo

Re: [PATCH 0/9] Reduce system disruption due to kswapd V4

2013-05-16 Thread Michal Hocko
On Thu 16-05-13 11:33:45, Mel Gorman wrote: [...] > swapin in this case is an indication as to whether we are swap trashing. > The closer the swapin/swapout ratio is to 0, the worse the I guess you meant the ratio is closer to 1 not zero. -- Michal Hocko SUSE Labs -- To unsubscribe from thi

Re: [PATCH 0/9] Reduce system disruption due to kswapd V4

2013-05-16 Thread Mel Gorman
On Wed, May 15, 2013 at 01:37:48PM -0700, Andrew Morton wrote: > On Mon, 13 May 2013 09:12:31 +0100 Mel Gorman wrote: > > > This series does not fix all the current known problems with reclaim but > > it addresses one important swapping bug when there is background IO. > > > > ... > > > > This w

Re: [PATCH 0/9] Reduce system disruption due to kswapd V4

2013-05-15 Thread Andrew Morton
On Mon, 13 May 2013 09:12:31 +0100 Mel Gorman wrote: > This series does not fix all the current known problems with reclaim but > it addresses one important swapping bug when there is background IO. > > ... > > This was tested using memcached+memcachetest while some background IO > was in progre