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From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
To: Martin Steigerwald <Martin@lichtvoll.de>
Cc: stan@hardwarefreak.com, xfs@oss.sgi.com
Subject: Re: suddenly slow writes on XFS Filesystem
Date: Mon, 07 May 2012 15:57:37 +0200	[thread overview]
Message-ID: <4FA7D4D1.6070609@profihost.ag> (raw)
In-Reply-To: <201205071031.38856.Martin@lichtvoll.de>

Am 07.05.2012 10:31, schrieb Martin Steigerwald:
> Am Montag, 7. Mai 2012 schrieb Stefan Priebe - Profihost AG:
> Did you verify that at the time you perceive slowness the servers you
> backup can deliver data fast enough?
Yes. It works fine to another partition.

> I would like to now, whether there are really processes waiting for I/O
> during rsync workload.
> 
> Can you try vmstat 5 and 
> while true; do ps aux | grep " D" | grep -v grep ; sleep 1; done

Here it is:
# vmstat 5
procs -----------memory---------- ---swap-- -----io---- -system--
----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy
id wa
 0  1      0 396688     48 7728136    0    0   229   374   22   32  1 12
85  2
 2  0      0 421744     48 7717348    0    0  3722  1169 9015 8389  1  2
95  2
 0  1      0 405780     48 7751904    0    0  8937   207 10780 9290  2
2 88  7
 0  0      0 486928     48 7733300    0    0  2526  1277 8275 7791  1  2
96  1
 0  0      0 416692     48 7778164    0    0  5046 43750 8548 8141  1  2
95  2
 0  0      0 444968     48 7777792    0    0  8021  1709 9315 8573  2  2
94  2
 2  0      0 357924     48 7946532    0    0 48181  1031 17646 12684 10
 4 87  0
 1  0      0 348696     48 8137200    0    0 74366  1056 24362 16775 15
 5 81  0
 1  0      0 391552     48 8279000    0    0 54693  1242 19224 13957 11
 4 85  0

# while true; do ps aux | grep " D" | grep -v grep ; sleep 1; done
root     12493  2.0  0.2 101780 48392 ?        D    15:35   0:24 rsync
--daemon
root     13581  3.5  0.1  76832 20828 ?        D    15:50   0:10 rsync
--daemon
root     12493  2.0  0.2 101268 48508 ?        D    15:35   0:24 rsync
--daemon
root     12494  3.9  0.2 128220 44328 ?        D    15:35   0:47 rsync
--daemon
root     12493  2.0  0.2 101268 48508 ?        D    15:35   0:24 rsync
--daemon
root     13581  3.5  0.1  76832 20828 ?        D    15:50   0:10 rsync
--daemon
root     12493  2.0  0.2 101268 48508 ?        D    15:35   0:24 rsync
--daemon
root     13581  3.5  0.1  76832 20828 ?        D    15:50   0:10 rsync
--daemon
root     12493  2.0  0.2  86420 48120 ?        D    15:35   0:25 rsync
--daemon
root     12493  2.0  0.2  86420 48120 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 21720 ?        D    15:50   0:11 rsync
--daemon
root     12493  2.0  0.2  86420 48120 ?        D    15:35   0:25 rsync
--daemon
root     12493  2.0  0.2  86420 48120 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 21720 ?        D    15:50   0:11 rsync
--daemon
root     12493  2.0  0.2  86420 48120 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 21980 ?        D    15:50   0:11 rsync
--daemon
root     13582  1.7  0.0  74308 13280 ?        D    15:50   0:05 rsync
--daemon
root     12493  2.0  0.2  87956 48212 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 21980 ?        D    15:50   0:11 rsync
--daemon
root     12493  2.0  0.2  86420 48156 ?        D    15:35   0:25 rsync
--daemon
root     12493  2.0  0.2  86420 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 22244 ?        D    15:50   0:11 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 22244 ?        D    15:50   0:11 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 22244 ?        D    15:50   0:11 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 22244 ?        D    15:50   0:11 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 22244 ?        D    15:50   0:11 rsync
--daemon
root     13581  3.5  0.1  76832 22508 ?        D    15:50   0:11 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 22508 ?        D    15:50   0:11 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 22508 ?        D    15:50   0:11 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 22772 ?        D    15:50   0:11 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 22772 ?        D    15:50   0:11 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 22772 ?        D    15:50   0:11 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 22772 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.5  0.1  76832 22772 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root      3378  0.1  0.0      0     0 ?        D    13:59   0:09
[flush-8:16]
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon
root     12493  2.0  0.2  86676 48180 ?        D    15:35   0:25 rsync
--daemon
root     13581  3.4  0.1  76832 23036 ?        D    15:50   0:12 rsync
--daemon


Stefan

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  reply	other threads:[~2012-05-07 13:57 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-06  9:01 suddenly slow writes on XFS Filesystem Stefan Priebe
2012-05-06 10:31 ` Martin Steigerwald
2012-05-06 10:33 ` Martin Steigerwald
2012-05-06 15:45   ` Stan Hoeppner
2012-05-06 19:25     ` Stefan Priebe
2012-05-07  1:39       ` Dave Chinner
2012-05-06 21:43     ` Martin Steigerwald
2012-05-07  6:40       ` Stefan Priebe - Profihost AG
2012-05-07  1:34 ` Dave Chinner
2012-05-07  6:39   ` Stefan Priebe - Profihost AG
2012-05-07  7:17     ` Dave Chinner
2012-05-07  7:22       ` Stefan Priebe - Profihost AG
2012-05-07 16:36         ` Stan Hoeppner
2012-05-07 19:08           ` Martin Steigerwald
2012-05-07 20:05           ` Stefan Priebe
2012-05-09  6:57             ` Stan Hoeppner
2012-05-09  7:04               ` Dave Chinner
2012-05-09  7:36                 ` Stefan Priebe - Profihost AG
2012-05-09  7:49                 ` Stan Hoeppner
2013-02-15 15:06                 ` 32bit apps and inode64 Stefan Priebe - Profihost AG
2013-02-15 21:46                   ` Ben Myers
2013-02-16 10:24                     ` Stefan Priebe - Profihost AG
2013-02-17 21:33                       ` Dave Chinner
2013-02-18  8:12                         ` Stefan Priebe - Profihost AG
2013-02-18 22:06                           ` Dave Chinner
2013-02-17  8:13                     ` Jeff Liu
2013-02-19 19:11                       ` Ben Myers
2012-05-07 23:42         ` suddenly slow writes on XFS Filesystem Dave Chinner
2012-05-07  8:21     ` Martin Steigerwald
2012-05-07 16:44       ` Stan Hoeppner
2012-05-07  8:31     ` Martin Steigerwald
2012-05-07 13:57       ` Stefan Priebe - Profihost AG [this message]
2012-05-07 14:32         ` Martin Steigerwald

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