On 11/22/2012 10:53 AM, Fengguang Wu wrote:
Ah it's more likely caused by this logic:
if (is_active_lru(lru)) {
if (inactive_list_is_low(mz, file))
shrink_active_list(nr_to_scan, mz, sc, priority, file);
The active file list won't be scanned a
On Thu, Nov 22, 2012 at 5:41 PM, Fengguang Wu wrote:
> On Wed, Nov 21, 2012 at 12:07:22PM +0200, Metin Döşlü wrote:
>> On Wed, Nov 21, 2012 at 12:00 PM, Jaegeuk Hanse
>> wrote:
>> >
>> > On 11/21/2012 05:58 PM, metin d wrote:
>> >
>> > Hi Fengguang,
>> >
>> > I run tests and attached the results
- Original Message -
From: Jaegeuk Hanse
To: metin d
Cc: Jan Kara ; "linux-kernel@vger.kernel.org"
; "linux...@kvack.org"
Sent: Friday, November 23, 2012 10:17 AM
Subject: Re: Problem in Page Cache Replacement
On 11/23/2012 04:08 PM, metin d wrote:
>
On 11/23/2012 04:08 PM, metin d wrote:
- Original Message -
From: Jaegeuk Hanse
To: metin d
Cc: Jan Kara ; "linux-kernel@vger.kernel.org"
; linux...@kvack.org
Sent: Friday, November 23, 2012 3:58 AM
Subject: Re: Problem in Page Cache Replacement
On 11/21/2012 02:25 AM
- Original Message -
From: Jaegeuk Hanse
To: metin d
Cc: Jan Kara ; "linux-kernel@vger.kernel.org"
; linux...@kvack.org
Sent: Friday, November 23, 2012 3:58 AM
Subject: Re: Problem in Page Cache Replacement
On 11/21/2012 02:25 AM, Jan Kara wrote:
> On Tue 20-11-12 09:4
Jaegeuk,
> Thanks for your response. But which kind of pages are in the special
> reserved and which are all-flags-cleared?
The all-flags-cleared pages are mostly free pages in the buddy system.
The pages with flag "buddy" are also free pages: the buddy system only
marks the head pages of each or
On 11/23/2012 12:17 AM, Johannes Weiner wrote:
On Thu, Nov 22, 2012 at 09:16:27PM +0800, Jaegeuk Hanse wrote:
On 11/22/2012 09:09 AM, Johannes Weiner wrote:
On Thu, Nov 22, 2012 at 08:48:07AM +0800, Jaegeuk Hanse wrote:
On 11/22/2012 05:34 AM, Johannes Weiner wrote:
Hi,
On Tue, Nov 20, 2012
On 11/22/2012 11:53 PM, Fengguang Wu wrote:
On Thu, Nov 22, 2012 at 11:41:07PM +0800, Fengguang Wu wrote:
On Wed, Nov 21, 2012 at 12:07:22PM +0200, Metin Döşlü wrote:
On Wed, Nov 21, 2012 at 12:00 PM, Jaegeuk Hanse wrote:
On 11/21/2012 05:58 PM, metin d wrote:
Hi Fengguang,
I run tests and
On 11/21/2012 02:25 AM, Jan Kara wrote:
On Tue 20-11-12 09:42:42, metin d wrote:
I have two PostgreSQL databases named data-1 and data-2 that sit on the
same machine. Both databases keep 40 GB of data, and the total memory
available on the machine is 68GB.
I started data-1 and data-2, and ran s
On 11/22/2012 11:26 PM, Fengguang Wu wrote:
Hi Jaegeuk,
Sorry for the delay. I'm traveling these days..
On Wed, Nov 21, 2012 at 05:42:33PM +0800, Jaegeuk Hanse wrote:
On 11/21/2012 05:02 PM, Fengguang Wu wrote:
On Wed, Nov 21, 2012 at 04:34:40PM +0800, Jaegeuk Hanse wrote:
Cc Fengguang Wu.
3:09 AM
Subject: Re: Problem in Page Cache Replacement
On Thu, Nov 22, 2012 at 08:48:07AM +0800, Jaegeuk Hanse wrote:
> On 11/22/2012 05:34 AM, Johannes Weiner wrote:
> >Hi,
> >
> >On Tue, Nov 20, 2012 at 07:25:00PM +0100, Jan Kara wrote:
> >>On Tue 20-11-12 09:42:42, m
Hi,
On Tue, Nov 20, 2012 at 07:25:00PM +0100, Jan Kara wrote:
> On Tue 20-11-12 09:42:42, metin d wrote:
> > I have two PostgreSQL databases named data-1 and data-2 that sit on the
> > same machine. Both databases keep 40 GB of data, and the total memory
> > available on the machine is 68GB.
> >
On Thu, Nov 22, 2012 at 08:48:07AM +0800, Jaegeuk Hanse wrote:
> On 11/22/2012 05:34 AM, Johannes Weiner wrote:
> >Hi,
> >
> >On Tue, Nov 20, 2012 at 07:25:00PM +0100, Jan Kara wrote:
> >>On Tue 20-11-12 09:42:42, metin d wrote:
> >>>I have two PostgreSQL databases named data-1 and data-2 that sit
On Thu, Nov 22, 2012 at 09:16:27PM +0800, Jaegeuk Hanse wrote:
> On 11/22/2012 09:09 AM, Johannes Weiner wrote:
> >On Thu, Nov 22, 2012 at 08:48:07AM +0800, Jaegeuk Hanse wrote:
> >>On 11/22/2012 05:34 AM, Johannes Weiner wrote:
> >>>Hi,
> >>>
> >>>On Tue, Nov 20, 2012 at 07:25:00PM +0100, Jan Kara
@kvack.org
Sent: Wednesday, November 21, 2012 11:34 PM
Subject: Re: Problem in Page Cache Replacement
Hi,
On Tue, Nov 20, 2012 at 07:25:00PM +0100, Jan Kara wrote:
> On Tue 20-11-12 09:42:42, metin d wrote:
> > I have two PostgreSQL databases named data-1 and data-2 that sit on th
On 11/22/2012 09:09 AM, Johannes Weiner wrote:
On Thu, Nov 22, 2012 at 08:48:07AM +0800, Jaegeuk Hanse wrote:
On 11/22/2012 05:34 AM, Johannes Weiner wrote:
Hi,
On Tue, Nov 20, 2012 at 07:25:00PM +0100, Jan Kara wrote:
On Tue 20-11-12 09:42:42, metin d wrote:
I have two PostgreSQL databases
On 11/22/2012 05:34 AM, Johannes Weiner wrote:
Hi,
On Tue, Nov 20, 2012 at 07:25:00PM +0100, Jan Kara wrote:
On Tue 20-11-12 09:42:42, metin d wrote:
I have two PostgreSQL databases named data-1 and data-2 that sit on the
same machine. Both databases keep 40 GB of data, and the total memory
av
On Thu, Nov 22, 2012 at 11:41:07PM +0800, Fengguang Wu wrote:
> On Wed, Nov 21, 2012 at 12:07:22PM +0200, Metin Döşlü wrote:
> > On Wed, Nov 21, 2012 at 12:00 PM, Jaegeuk Hanse
> > wrote:
> > >
> > > On 11/21/2012 05:58 PM, metin d wrote:
> > >
> > > Hi Fengguang,
> > >
> > > I run tests and atta
On Wed, Nov 21, 2012 at 12:07:22PM +0200, Metin Döşlü wrote:
> On Wed, Nov 21, 2012 at 12:00 PM, Jaegeuk Hanse
> wrote:
> >
> > On 11/21/2012 05:58 PM, metin d wrote:
> >
> > Hi Fengguang,
> >
> > I run tests and attached the results. The line below I guess shows the
> > data-1 page caches.
> >
Hi Jaegeuk,
Sorry for the delay. I'm traveling these days..
On Wed, Nov 21, 2012 at 05:42:33PM +0800, Jaegeuk Hanse wrote:
> On 11/21/2012 05:02 PM, Fengguang Wu wrote:
> >On Wed, Nov 21, 2012 at 04:34:40PM +0800, Jaegeuk Hanse wrote:
> >>Cc Fengguang Wu.
> >>
> >>On 11/21/2012 04:13 PM, metin d
uot;linux...@kvack.org"
> Sent: Wednesday, November 21, 2012 11:42 AM
> Subject: Re: Problem in Page Cache Replacement
>
> On 11/21/2012 05:02 PM, Fengguang Wu wrote:
> > On Wed, Nov 21, 2012 at 04:34:40PM +0800, Jaegeuk Hanse wrote:
> >> Cc Fengguang Wu.
>
: Fengguang Wu
Cc: metin d ; Jan Kara ;
"linux-kernel@vger.kernel.org" ;
"linux...@kvack.org"
Sent: Wednesday, November 21, 2012 11:42 AM
Subject: Re: Problem in Page Cache Replacement
On 11/21/2012 05:02 PM, Fengguang Wu wrote:
> On Wed, Nov 21, 2012 at 04:34:40PM +08
On 11/21/2012 05:02 PM, Fengguang Wu wrote:
On Wed, Nov 21, 2012 at 04:34:40PM +0800, Jaegeuk Hanse wrote:
Cc Fengguang Wu.
On 11/21/2012 04:13 PM, metin d wrote:
Curious. Added linux-mm list to CC to catch more attention. If you run
echo 1 >/proc/sys/vm/drop_caches does it evict data-1 pag
On Wed, Nov 21, 2012 at 05:02:04PM +0800, Fengguang Wu wrote:
> On Wed, Nov 21, 2012 at 04:34:40PM +0800, Jaegeuk Hanse wrote:
> > Cc Fengguang Wu.
> >
> > On 11/21/2012 04:13 PM, metin d wrote:
> > >> Curious. Added linux-mm list to CC to catch more attention. If you run
> > >>echo 1 >/proc/sys
On Wed, Nov 21, 2012 at 04:34:40PM +0800, Jaegeuk Hanse wrote:
> Cc Fengguang Wu.
>
> On 11/21/2012 04:13 PM, metin d wrote:
> >> Curious. Added linux-mm list to CC to catch more attention. If you run
> >>echo 1 >/proc/sys/vm/drop_caches does it evict data-1 pages from memory?
> >I'm guessing it
Cc Fengguang Wu.
On 11/21/2012 04:13 PM, metin d wrote:
Curious. Added linux-mm list to CC to catch more attention. If you run
echo 1 >/proc/sys/vm/drop_caches does it evict data-1 pages from memory?
I'm guessing it'd evict the entries, but am wondering if we could run any more
diagnostics
> Curious. Added linux-mm list to CC to catch more attention. If you run
> echo 1 >/proc/sys/vm/drop_caches does it evict data-1 pages from memory?
I'm guessing it'd evict the entries, but am wondering if we could run any more
diagnostics before trying this.
We regularly use a setup where we ha
November 20, 2012 8:25 PM
Subject: Re: Problem in Page Cache Replacement
On Tue 20-11-12 09:42:42, metin d wrote:
> I have two PostgreSQL databases named data-1 and data-2 that sit on the
> same machine. Both databases keep 40 GB of data, and the total memory
> available on the machine is
On Tue 20-11-12 09:42:42, metin d wrote:
> I have two PostgreSQL databases named data-1 and data-2 that sit on the
> same machine. Both databases keep 40 GB of data, and the total memory
> available on the machine is 68GB.
>
> I started data-1 and data-2, and ran several queries to go over all the
I have two PostgreSQL databases named data-1 and data-2 that sit on the same
machine. Both databases keep 40 GB of data, and the total memory available on
the machine is 68GB.
I started data-1 and data-2, and ran several queries to go over all their data.
Then, I shut down data-1 and kept issui
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