Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Tue, Mar 07, 2017 at 11:56:31AM -0500, Johannes Weiner wrote: > On Tue, Mar 07, 2017 at 11:17:02AM +0100, Michal Hocko wrote: > > On Mon 06-03-17 11:24:10, Johannes Weiner wrote: > > > @@ -3271,7 +3271,8 @@ static int balance_pgdat(pg_data_t *pgdat, int > > > order, int classzone_idx) > > >

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Tue, Mar 07, 2017 at 11:56:31AM -0500, Johannes Weiner wrote: > On Tue, Mar 07, 2017 at 11:17:02AM +0100, Michal Hocko wrote: > > On Mon 06-03-17 11:24:10, Johannes Weiner wrote: > > > @@ -3271,7 +3271,8 @@ static int balance_pgdat(pg_data_t *pgdat, int > > > order, int classzone_idx) > > >

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Tue, Mar 07, 2017 at 11:17:02AM +0100, Michal Hocko wrote: > On Mon 06-03-17 11:24:10, Johannes Weiner wrote: > > @@ -3271,7 +3271,8 @@ static int balance_pgdat(pg_data_t *pgdat, int order, > > int classzone_idx) > > * Raise priority if scanning rate is too low or there was no > >

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Tue, Mar 07, 2017 at 11:17:02AM +0100, Michal Hocko wrote: > On Mon 06-03-17 11:24:10, Johannes Weiner wrote: > > @@ -3271,7 +3271,8 @@ static int balance_pgdat(pg_data_t *pgdat, int order, > > int classzone_idx) > > * Raise priority if scanning rate is too low or there was no > >

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Mon 06-03-17 11:24:10, Johannes Weiner wrote: [...] > >From e126db716926ff353b35f3a6205bd5853e01877b Mon Sep 17 00:00:00 2001 > From: Johannes Weiner > Date: Mon, 6 Mar 2017 10:53:59 -0500 > Subject: [PATCH] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes fix > >

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Mon 06-03-17 11:24:10, Johannes Weiner wrote: [...] > >From e126db716926ff353b35f3a6205bd5853e01877b Mon Sep 17 00:00:00 2001 > From: Johannes Weiner > Date: Mon, 6 Mar 2017 10:53:59 -0500 > Subject: [PATCH] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes fix > > Check kswapd failure

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Mon, Mar 06, 2017 at 11:24:10AM -0500, Johannes Weiner wrote: > On Mon, Mar 06, 2017 at 10:37:40AM +0900, Minchan Kim wrote: > > On Fri, Mar 03, 2017 at 08:59:54AM +0100, Michal Hocko wrote: > > > On Fri 03-03-17 10:26:09, Minchan Kim wrote: > > > > On Tue, Feb 28, 2017 at 04:39:59PM -0500,

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Mon, Mar 06, 2017 at 11:24:10AM -0500, Johannes Weiner wrote: > On Mon, Mar 06, 2017 at 10:37:40AM +0900, Minchan Kim wrote: > > On Fri, Mar 03, 2017 at 08:59:54AM +0100, Michal Hocko wrote: > > > On Fri 03-03-17 10:26:09, Minchan Kim wrote: > > > > On Tue, Feb 28, 2017 at 04:39:59PM -0500,

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On March 07, 2017 12:24 AM Johannes Weiner wrote: > On Mon, Mar 06, 2017 at 10:37:40AM +0900, Minchan Kim wrote: > > On Fri, Mar 03, 2017 at 08:59:54AM +0100, Michal Hocko wrote: > > > On Fri 03-03-17 10:26:09, Minchan Kim wrote: > > > > On Tue, Feb 28, 2017 at 04:39:59PM -0500, Johannes Weiner

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On March 07, 2017 12:24 AM Johannes Weiner wrote: > On Mon, Mar 06, 2017 at 10:37:40AM +0900, Minchan Kim wrote: > > On Fri, Mar 03, 2017 at 08:59:54AM +0100, Michal Hocko wrote: > > > On Fri 03-03-17 10:26:09, Minchan Kim wrote: > > > > On Tue, Feb 28, 2017 at 04:39:59PM -0500, Johannes Weiner

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Mon, Mar 06, 2017 at 10:37:40AM +0900, Minchan Kim wrote: > On Fri, Mar 03, 2017 at 08:59:54AM +0100, Michal Hocko wrote: > > On Fri 03-03-17 10:26:09, Minchan Kim wrote: > > > On Tue, Feb 28, 2017 at 04:39:59PM -0500, Johannes Weiner wrote: > > > > @@ -3316,6 +3325,9 @@ static int

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Mon, Mar 06, 2017 at 10:37:40AM +0900, Minchan Kim wrote: > On Fri, Mar 03, 2017 at 08:59:54AM +0100, Michal Hocko wrote: > > On Fri 03-03-17 10:26:09, Minchan Kim wrote: > > > On Tue, Feb 28, 2017 at 04:39:59PM -0500, Johannes Weiner wrote: > > > > @@ -3316,6 +3325,9 @@ static int

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

Hi Michal, On Fri, Mar 03, 2017 at 08:59:54AM +0100, Michal Hocko wrote: > On Fri 03-03-17 10:26:09, Minchan Kim wrote: > > Hi Johannes, > > > > On Tue, Feb 28, 2017 at 04:39:59PM -0500, Johannes Weiner wrote: > > > Jia He reports a problem with kswapd spinning at 100% CPU when > > > requesting

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

Hi Michal, On Fri, Mar 03, 2017 at 08:59:54AM +0100, Michal Hocko wrote: > On Fri 03-03-17 10:26:09, Minchan Kim wrote: > > Hi Johannes, > > > > On Tue, Feb 28, 2017 at 04:39:59PM -0500, Johannes Weiner wrote: > > > Jia He reports a problem with kswapd spinning at 100% CPU when > > > requesting

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Fri 03-03-17 10:26:09, Minchan Kim wrote: > Hi Johannes, > > On Tue, Feb 28, 2017 at 04:39:59PM -0500, Johannes Weiner wrote: > > Jia He reports a problem with kswapd spinning at 100% CPU when > > requesting more hugepages than memory available in the system: > > > > $ echo 4000

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Fri 03-03-17 10:26:09, Minchan Kim wrote: > Hi Johannes, > > On Tue, Feb 28, 2017 at 04:39:59PM -0500, Johannes Weiner wrote: > > Jia He reports a problem with kswapd spinning at 100% CPU when > > requesting more hugepages than memory available in the system: > > > > $ echo 4000

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

Hi Johannes, On Tue, Feb 28, 2017 at 04:39:59PM -0500, Johannes Weiner wrote: > Jia He reports a problem with kswapd spinning at 100% CPU when > requesting more hugepages than memory available in the system: > > $ echo 4000 >/proc/sys/vm/nr_hugepages > > top - 13:42:59 up 3:37, 1 user, load

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

Hi Johannes, On Tue, Feb 28, 2017 at 04:39:59PM -0500, Johannes Weiner wrote: > Jia He reports a problem with kswapd spinning at 100% CPU when > requesting more hugepages than memory available in the system: > > $ echo 4000 >/proc/sys/vm/nr_hugepages > > top - 13:42:59 up 3:37, 1 user, load

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Tue, Feb 28, 2017 at 1:39 PM, Johannes Weiner wrote: > Jia He reports a problem with kswapd spinning at 100% CPU when > requesting more hugepages than memory available in the system: > > $ echo 4000 >/proc/sys/vm/nr_hugepages > > top - 13:42:59 up 3:37, 1 user, load

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On Tue, Feb 28, 2017 at 1:39 PM, Johannes Weiner wrote: > Jia He reports a problem with kswapd spinning at 100% CPU when > requesting more hugepages than memory available in the system: > > $ echo 4000 >/proc/sys/vm/nr_hugepages > > top - 13:42:59 up 3:37, 1 user, load average: 1.09, 1.03,

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On March 01, 2017 5:40 AM Johannes Weiner wrote: > > Jia He reports a problem with kswapd spinning at 100% CPU when > requesting more hugepages than memory available in the system: > > $ echo 4000 >/proc/sys/vm/nr_hugepages > > top - 13:42:59 up 3:37, 1 user, load average: 1.09, 1.03, 1.01

Re: [PATCH 1/9] mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

On March 01, 2017 5:40 AM Johannes Weiner wrote: > > Jia He reports a problem with kswapd spinning at 100% CPU when > requesting more hugepages than memory available in the system: > > $ echo 4000 >/proc/sys/vm/nr_hugepages > > top - 13:42:59 up 3:37, 1 user, load average: 1.09, 1.03, 1.01