Nick Piggin <[EMAIL PROTECTED]> skrev:
> OK that's good to know. At this stage it is only
> working around the intermediate symptoms, and we
> might want a different fix for 2.6.11...
>
> So hopefully you'll be able to test a patch or two
> if you get time.
Sure. Just drop me a mail.
I'm glad
Terje Fåberg wrote:
Terje Fåberg <[EMAIL PROTECTED]> skrev:
I'll continue to do the same things I did yesterday
before kswapd started to spin.
Looks very good so far. I am unable to reproduce the
bad kswapd behaviour with your patch, Nick.
To double-check I booted into the old kernel an hour
Terje Fåberg <[EMAIL PROTECTED]> skrev:
> I'll continue to do the same things I did yesterday
> before kswapd started to spin.
Looks very good so far. I am unable to reproduce the
bad kswapd behaviour with your patch, Nick.
To double-check I booted into the old kernel an hour
ago and I
@vger.kernel.org; [EMAIL PROTECTED]
Subject: Re: 2.6.10: kswapd spins like crazy
Andrew Morton wrote:
> Nick Piggin <[EMAIL PROTECTED]> wrote:
>
>>Oh, attached should be a minimal fix if you would like to try it out.
>>
>>
>>...
>>--- linux-2.6/mm/vms
Nick Piggin <[EMAIL PROTECTED]> skrev:
> No none yet, which is what we should get to the
> bottom of. I must be overlooking something, but the
> only ways I can see should be due to transient
> conditions like page locked or under writeback.
> laptop_mode?
>
> Terje, what is
Nick Piggin [EMAIL PROTECTED] skrev:
OK that's good to know. At this stage it is only
working around the intermediate symptoms, and we
might want a different fix for 2.6.11...
So hopefully you'll be able to test a patch or two
if you get time.
Sure. Just drop me a mail.
I'm glad if I can
Nick Piggin [EMAIL PROTECTED] skrev:
No none yet, which is what we should get to the
bottom of. I must be overlooking something, but the
only ways I can see should be due to transient
conditions like page locked or under writeback.
laptop_mode?
Terje, what is /proc/sys/vm/laptop_mode
Weathers
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Nick Piggin
Sent: Thursday, February 03, 2005 7:20 PM
To: Andrew Morton
Cc: [EMAIL PROTECTED]; linux-kernel@vger.kernel.org; [EMAIL PROTECTED]
Subject: Re: 2.6.10: kswapd spins like crazy
Andrew
Terje Fåberg [EMAIL PROTECTED] skrev:
I'll continue to do the same things I did yesterday
before kswapd started to spin.
Looks very good so far. I am unable to reproduce the
bad kswapd behaviour with your patch, Nick.
To double-check I booted into the old kernel an hour
ago and I _could_
Terje Fåberg wrote:
Terje Fåberg [EMAIL PROTECTED] skrev:
I'll continue to do the same things I did yesterday
before kswapd started to spin.
Looks very good so far. I am unable to reproduce the
bad kswapd behaviour with your patch, Nick.
To double-check I booted into the old kernel an hour
Nick Piggin <[EMAIL PROTECTED]> wrote:
>
> Oh, attached should be a minimal fix if you would like to try it out.
>
>
> ...
> --- linux-2.6/mm/vmscan.c~vmscan-minfix 2005-02-04 11:52:37.0
> +1100
> +++ linux-2.6-npiggin/mm/vmscan.c 2005-02-04 11:53:32.0 +1100
> @@
Andrew Morton wrote:
Nick Piggin <[EMAIL PROTECTED]> wrote:
Oh, attached should be a minimal fix if you would like to try it out.
...
--- linux-2.6/mm/vmscan.c~vmscan-minfix 2005-02-04 11:52:37.0 +1100
+++ linux-2.6-npiggin/mm/vmscan.c 2005-02-04 11:53:32.0 +1100
@@ -575,6
Nick Piggin wrote:
Hmm, your DMA zone has no active pages, and pages_scanned (which
triggers all_unreclaimable)
is only incremented when scanning the active list. But I wonder, if the
pages can't be
freed, why aren't they being put on the active list?
Oh, attached should be a minimal fix if you
Terje FÃberg wrote:
Terje FÃberg <[EMAIL PROTECTED]> skrev:
The kernel is compiling right now, but I cannot
reboot this machine until six or seven o'clock
tonight (CET). I will report then.
Well, well, I rebooted the same kernel, now with
MAGIC-SYSRQ enabled. At first the kswapd-effect
Terje Fåberg <[EMAIL PROTECTED]> skrev:
> The kernel is compiling right now, but I cannot
> reboot this machine until six or seven o'clock
> tonight (CET). I will report then.
Well, well, I rebooted the same kernel, now with
MAGIC-SYSRQ enabled. At first the kswapd-effect
wouldn't show up,
Nick Piggin <[EMAIL PROTECTED]> skrev:
> Can you post about 10 seconds of `vmstat 1` output
> while this is happening?
>
> Also:
> `cat /proc/vmstat > pre ; sleep 10 ; cat
> /proc/vmstat > post`
> while this is happening, and send the pre and post
> files.
>
> cat /proc/meminfo also might be
On Thu, 2005-02-03 at 11:29 +0100, Terje FÃberg wrote:
> I recently upgraded my desktop from 2.4.28 to
> 2.6.10. Even under moderate memory pressure kswapd
> regularly eats almost all available cpu time
> whenever there is a little more IO throughput,
> like copying large files. The system is
I recently upgraded my desktop from 2.4.28 to
2.6.10. Even under moderate memory pressure kswapd
regularly eats almost all available cpu time
whenever there is a little more IO throughput,
like copying large files. The system is extremely
sluggish during this. The system load goes up to
7.5 or
I recently upgraded my desktop from 2.4.28 to
2.6.10. Even under moderate memory pressure kswapd
regularly eats almost all available cpu time
whenever there is a little more IO throughput,
like copying large files. The system is extremely
sluggish during this. The system load goes up to
7.5 or
On Thu, 2005-02-03 at 11:29 +0100, Terje Fberg wrote:
I recently upgraded my desktop from 2.4.28 to
2.6.10. Even under moderate memory pressure kswapd
regularly eats almost all available cpu time
whenever there is a little more IO throughput,
like copying large files. The system is extremely
Nick Piggin [EMAIL PROTECTED] skrev:
Can you post about 10 seconds of `vmstat 1` output
while this is happening?
Also:
`cat /proc/vmstat pre ; sleep 10 ; cat
/proc/vmstat post`
while this is happening, and send the pre and post
files.
cat /proc/meminfo also might be helpful.
You
Terje Fåberg [EMAIL PROTECTED] skrev:
The kernel is compiling right now, but I cannot
reboot this machine until six or seven o'clock
tonight (CET). I will report then.
Well, well, I rebooted the same kernel, now with
MAGIC-SYSRQ enabled. At first the kswapd-effect
wouldn't show up, but now
Terje Fberg wrote:
Terje Fberg [EMAIL PROTECTED] skrev:
The kernel is compiling right now, but I cannot
reboot this machine until six or seven o'clock
tonight (CET). I will report then.
Well, well, I rebooted the same kernel, now with
MAGIC-SYSRQ enabled. At first the kswapd-effect
wouldn't
Nick Piggin wrote:
Hmm, your DMA zone has no active pages, and pages_scanned (which
triggers all_unreclaimable)
is only incremented when scanning the active list. But I wonder, if the
pages can't be
freed, why aren't they being put on the active list?
Oh, attached should be a minimal fix if you
Andrew Morton wrote:
Nick Piggin [EMAIL PROTECTED] wrote:
Oh, attached should be a minimal fix if you would like to try it out.
...
--- linux-2.6/mm/vmscan.c~vmscan-minfix 2005-02-04 11:52:37.0 +1100
+++ linux-2.6-npiggin/mm/vmscan.c 2005-02-04 11:53:32.0 +1100
@@ -575,6
Nick Piggin [EMAIL PROTECTED] wrote:
Oh, attached should be a minimal fix if you would like to try it out.
...
--- linux-2.6/mm/vmscan.c~vmscan-minfix 2005-02-04 11:52:37.0
+1100
+++ linux-2.6-npiggin/mm/vmscan.c 2005-02-04 11:53:32.0 +1100
@@ -575,6 +575,7 @@
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