From: Jiri Slaby <jslaby@suse.cz>
To: Hillf Danton <dhillf@gmail.com>
Cc: Daniel J Blueman <daniel@numascale-asia.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Steffen Persvold <sp@numascale.com>
Subject: Re: kswapd craziness round 2
Date: Thu, 07 Mar 2013 20:37:16 +0100 [thread overview]
Message-ID: <5138EC6C.6030906@suse.cz> (raw)
In-Reply-To: <CAJd=RBD=eT=xdEy+v3GBZ47gd47eB+fpF-3VtfpLAU7aEkZGgA@mail.gmail.com>
On 03/01/2013 03:02 PM, Hillf Danton wrote:
> On Fri, Mar 1, 2013 at 1:02 AM, Jiri Slaby <jslaby@suse.cz> wrote:
>>
>> Ok, no difference, kswap is still crazy. I'm attaching the output of
>> "grep -vw '0' /proc/vmstat" if you see something there.
>>
> Thanks to you for test and data.
>
> Lets try to restore the deleted nap, then.
Oh, it seems to be nice now:
root 579 0.0 0.0 0 0 ? S Mar04 0:13 [kswapd0]
Thanks.
> Hillf
> --- a/mm/vmscan.c Thu Feb 21 20:01:02 2013
> +++ b/mm/vmscan.c Fri Mar 1 21:55:40 2013
> @@ -2817,6 +2817,10 @@ loop_again:
> */
> if (sc.nr_reclaimed >= SWAP_CLUSTER_MAX)
> break;
> +
> + if (sc.priority < DEF_PRIORITY - 2)
> + congestion_wait(BLK_RW_ASYNC, HZ/10);
> +
> } while (--sc.priority >= 0);
>
> out:
> --
>
--
js
suse labs
next prev parent reply other threads:[~2013-03-07 19:37 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-18 6:18 Daniel J Blueman
2013-02-18 11:42 ` Hillf Danton
2013-02-18 15:05 ` Daniel J Blueman
2013-02-20 22:14 ` Jiri Slaby
2013-02-21 12:07 ` Hillf Danton
2013-02-24 21:27 ` Jiri Slaby
2013-02-28 17:02 ` Jiri Slaby
2013-03-01 14:02 ` Hillf Danton
2013-03-07 19:37 ` Jiri Slaby [this message]
2013-03-08 6:42 ` Hillf Danton
2013-03-08 7:29 ` Zlatko Calusic
2013-03-08 8:27 ` Hillf Danton
2013-03-08 23:21 ` Jiri Slaby
2013-03-19 16:59 ` Pádraig Brady
2013-03-20 4:12 ` Hillf Danton
2013-03-20 8:39 ` Jiri Slaby
-- strict thread matches above, loose matches on Subject: below --
2013-02-17 22:02 Jiri Slaby
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