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Old 04-01-2011, 12:16 PM
Brandon Metcalf
 
Default Bug#620297: Bug#620297: base: vmstat and /proc/loadavg disagree

This is the only version on which I have seen this behavior. It's
also the first version using flush-8:0 instead of pdflush that I've
tried.

On Fri, Apr 1, 2011 at 2:21 AM, Amaya <amaya@debian.org> wrote:
> Hi, Brandon
>
> Can you reproduce this with other kernel versions?
>
> Brandon Metcalf wrote:
>> Package: base
>> Severity: important
>>
>> After a system running squeeze has been under constant load, the load
>> averages in /proc/loadavg seem to be calculated incorrectly with
>> /proc/loadavg showing values that are much too low. *Below is vmstat
>> output along with the contents of /proc/loadavg. *The fourth field
>> of /proc/loadavg seems correct, but the 1-minute avg is definitely wrong:
>>
>> vmstat:
>> procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
>> *r *b * swpd * free * buff *cache * si * so * *bi * *bo * in * cs us sy id wa
>> 11 *0 * * *0 12569200 *22832 7468824 * *0 * *0 * * 9 * 135 * 22 * 96 39 *3 58 *0
>> loadavg:
>> 0.34 4.98 6.47 10/468 13072
>> vmstat:
>> procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
>> *r *b * swpd * free * buff *cache * si * so * *bi * *bo * in * cs us sy id wa
>> 15 *0 * * *0 12566340 *22832 7469612 * *0 * *0 * * 9 * 135 * 23 * 96 39 *3 58 *0
>> loadavg:
>> 0.34 4.98 6.47 16/468 13075
>>
>> Although this is just two samples, the behavior is consistent over a long
>> period of time.
>>
>>
>> -- System Information:
>> Debian Release: 6.0.1
>> * APT prefers stable
>> * APT policy: (500, 'stable')
>> Architecture: amd64 (x86_64)
>>
>> Kernel: Linux 2.6.32-5-amd64 (SMP w/16 CPU cores)
>> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
>> Shell: /bin/sh linked to /bin/dash
>>
>>
>>
>> _______________________________________________
>> Virtual-pkg-base-maintainers mailing list
>> Virtual-pkg-base-maintainers@lists.alioth.debian.org
>> http://lists.alioth.debian.org/mailman/listinfo/virtual-pkg-base-maintainers
>
> --
> *.'`. *Hate's no fun if you keep it to yourself
> : :' : * * * * * * * * -- The life of David Gale
> `. `'
> *`- * *Proudly running Debian GNU/Linux
>



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