Re: [Xen-devel] [PATCH v10 2/4] xen/blkback: Squeeze page pools if a memory pressure is detected

2019-12-17 Thread SeongJae Park
On Tue, 17 Dec 2019 09:30:32 +0100 SeongJae Park wrote: > On Tue, 17 Dec 2019 09:16:47 +0100 "Jürgen Groß" wrote: > > > On 17.12.19 08:59, SeongJae Park wrote: > > > On Tue, 17 Dec 2019 07:23:12 +0100 "Jürgen Groß" wrote: > > > > > >> On 16.12.19 20:48, SeongJae Park wrote: > > >>> On on, 16

Re: [Xen-devel] [PATCH v10 2/4] xen/blkback: Squeeze page pools if a memory pressure is detected

2019-12-17 Thread Jürgen Groß
On 17.12.19 14:15, SeongJae Park wrote: On Tue, 17 Dec 2019 12:39:15 +0100 "Roger Pau Monné" wrote: On Mon, Dec 16, 2019 at 08:48:03PM +0100, SeongJae Park wrote: On on, 16 Dec 2019 17:23:44 +0100, Jürgen Groß wrote: On 16.12.19 17:15, SeongJae Park wrote: On Mon, 16 Dec 2019 15:37:20

Re: [Xen-devel] [PATCH v10 2/4] xen/blkback: Squeeze page pools if a memory pressure is detected

2019-12-17 Thread SeongJae Park
On Tue, 17 Dec 2019 12:39:15 +0100 "Roger Pau Monné" wrote: > On Mon, Dec 16, 2019 at 08:48:03PM +0100, SeongJae Park wrote: > > On on, 16 Dec 2019 17:23:44 +0100, Jürgen Groß wrote: > > > > > On 16.12.19 17:15, SeongJae Park wrote: > > > > On Mon, 16 Dec 2019 15:37:20 +0100 SeongJae Park >

Re: [Xen-devel] [PATCH v10 2/4] xen/blkback: Squeeze page pools if a memory pressure is detected

2019-12-17 Thread Roger Pau Monné
On Mon, Dec 16, 2019 at 08:48:03PM +0100, SeongJae Park wrote: > On on, 16 Dec 2019 17:23:44 +0100, Jürgen Groß wrote: > > > On 16.12.19 17:15, SeongJae Park wrote: > > > On Mon, 16 Dec 2019 15:37:20 +0100 SeongJae Park > > > wrote: > > > > > >> On Mon, 16 Dec 2019 13:45:25 +0100 SeongJae Park

Re: [Xen-devel] [PATCH v10 2/4] xen/blkback: Squeeze page pools if a memory pressure is detected

2019-12-17 Thread SeongJae Park
On Tue, 17 Dec 2019 09:16:47 +0100 "Jürgen Groß" wrote: > On 17.12.19 08:59, SeongJae Park wrote: > > On Tue, 17 Dec 2019 07:23:12 +0100 "Jürgen Groß" wrote: > > > >> On 16.12.19 20:48, SeongJae Park wrote: > >>> On on, 16 Dec 2019 17:23:44 +0100, Jürgen Groß wrote: > >>> > On 16.12.19

Re: [Xen-devel] [PATCH v10 2/4] xen/blkback: Squeeze page pools if a memory pressure is detected

2019-12-17 Thread Jürgen Groß
On 17.12.19 08:59, SeongJae Park wrote: On Tue, 17 Dec 2019 07:23:12 +0100 "Jürgen Groß" wrote: On 16.12.19 20:48, SeongJae Park wrote: On on, 16 Dec 2019 17:23:44 +0100, Jürgen Groß wrote: On 16.12.19 17:15, SeongJae Park wrote: On Mon, 16 Dec 2019 15:37:20 +0100 SeongJae Park wrote:

Re: [Xen-devel] [PATCH v10 2/4] xen/blkback: Squeeze page pools if a memory pressure is detected

2019-12-17 Thread SeongJae Park
On Tue, 17 Dec 2019 07:23:12 +0100 "Jürgen Groß" wrote: > On 16.12.19 20:48, SeongJae Park wrote: > > On on, 16 Dec 2019 17:23:44 +0100, Jürgen Groß wrote: > > > >> On 16.12.19 17:15, SeongJae Park wrote: > >>> On Mon, 16 Dec 2019 15:37:20 +0100 SeongJae Park > >>> wrote: > >>> > On Mon,

Re: [Xen-devel] [PATCH v10 2/4] xen/blkback: Squeeze page pools if a memory pressure is detected

2019-12-16 Thread Jürgen Groß
On 16.12.19 20:48, SeongJae Park wrote: On on, 16 Dec 2019 17:23:44 +0100, Jürgen Groß wrote: On 16.12.19 17:15, SeongJae Park wrote: On Mon, 16 Dec 2019 15:37:20 +0100 SeongJae Park wrote: On Mon, 16 Dec 2019 13:45:25 +0100 SeongJae Park wrote: From: SeongJae Park [...] ---

Re: [Xen-devel] [PATCH v10 2/4] xen/blkback: Squeeze page pools if a memory pressure is detected

2019-12-16 Thread SeongJae Park
On on, 16 Dec 2019 17:23:44 +0100, Jürgen Groß wrote: > On 16.12.19 17:15, SeongJae Park wrote: > > On Mon, 16 Dec 2019 15:37:20 +0100 SeongJae Park wrote: > > > >> On Mon, 16 Dec 2019 13:45:25 +0100 SeongJae Park wrote: > >> > >>> From: SeongJae Park > >>> > > [...] > >>> ---

Re: [Xen-devel] [PATCH v10 2/4] xen/blkback: Squeeze page pools if a memory pressure is detected

2019-12-16 Thread Jürgen Groß
On 16.12.19 17:15, SeongJae Park wrote: On Mon, 16 Dec 2019 15:37:20 +0100 SeongJae Park wrote: On Mon, 16 Dec 2019 13:45:25 +0100 SeongJae Park wrote: From: SeongJae Park [...] --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -824,6 +824,24 @@

Re: [Xen-devel] [PATCH v10 2/4] xen/blkback: Squeeze page pools if a memory pressure is detected

2019-12-16 Thread SeongJae Park
On Mon, 16 Dec 2019 15:37:20 +0100 SeongJae Park wrote: > On Mon, 16 Dec 2019 13:45:25 +0100 SeongJae Park wrote: > > > From: SeongJae Park > > [...] > > --- a/drivers/block/xen-blkback/xenbus.c > > +++ b/drivers/block/xen-blkback/xenbus.c > > @@ -824,6 +824,24 @@ static void

Re: [Xen-devel] [PATCH v10 2/4] xen/blkback: Squeeze page pools if a memory pressure is detected

2019-12-16 Thread SeongJae Park
On Mon, 16 Dec 2019 13:45:25 +0100 SeongJae Park wrote: > From: SeongJae Park > > Each `blkif` has a free pages pool for the grant mapping. The size of > the pool starts from zero and is increased on demand while processing > the I/O requests. If current I/O requests handling is finished or