* Writes in idle/How to debug filesystem activity
@ 2011-08-29 20:13 Jonas H.
0 siblings, 0 replies; 3+ messages in thread
From: Jonas H. @ 2011-08-29 20:13 UTC (permalink / raw)
To: linux-btrfs
Hallo list,
I use btrfs on a SD card. When my computer is running in idle (i.e.
nothing running but wmii and a few background tasks that don't do any
i/o; freshly synced), from time to time some [btrfs-*] tasks do writes
(for 5 seconds or so). What are those processes doing on my disk,
having nothing to write/read? That leads to the second question: How can
I debug file system activity in inotify style?
Thanks,
Jonas
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Writes in idle/How to debug filesystem activity
@ 2011-08-30 6:58 Tomasz Chmielewski
2011-08-30 7:06 ` cwillu
0 siblings, 1 reply; 3+ messages in thread
From: Tomasz Chmielewski @ 2011-08-30 6:58 UTC (permalink / raw)
To: linux-btrfs, jonas
> I use btrfs on a SD card. When my computer is running in idle (i.e.
> nothing running but wmii and a few background tasks that don't do any
> i/o; freshly synced), from time to time some [btrfs-*] tasks do writes
> (for 5 seconds or so). What are those processes doing on my disk,
> having nothing to write/read? That leads to the second question: How can
> I debug file system activity in inotify style?
There was once a similar thread about this issue; unfortunately, without
any constructive answers:
http://thread.gmane.org/gmane.comp.file-systems.btrfs/10840
--
Tomasz Chmielewski
http://wpkg.org
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Writes in idle/How to debug filesystem activity
2011-08-30 6:58 Tomasz Chmielewski
@ 2011-08-30 7:06 ` cwillu
0 siblings, 0 replies; 3+ messages in thread
From: cwillu @ 2011-08-30 7:06 UTC (permalink / raw)
To: Tomasz Chmielewski; +Cc: linux-btrfs, jonas
> There was once a similar thread about this issue; unfortunately, without any
> constructive answers:
>
> http://thread.gmane.org/gmane.comp.file-systems.btrfs/10840
I believe sync does a transaction commit every time.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2011-08-29 20:13 Writes in idle/How to debug filesystem activity Jonas H.
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2011-08-30 6:58 Tomasz Chmielewski
2011-08-30 7:06 ` cwillu
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