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* Help debugging filesystem activity?
@ 2008-02-11 13:17 rzryyvzy
  2008-02-11 13:28 ` Guillaume Chazarain
  0 siblings, 1 reply; 3+ messages in thread
From: rzryyvzy @ 2008-02-11 13:17 UTC (permalink / raw)
  To: linux-kernel

My hard disk on my server is all the time readding and writing some files (I can see it with dstat). However I would like to know which files exactly are readden or written all the time. I know that each filesystem activity goes by the VFS (virtual filesystem).
Is it possible to see all current open files in the VFS?
For example with a command like:
$ cat /proc/fs/vfs/open_files
$ cat /proc/fs/vfs/reading_files
$ cat /proc/fs/vfs/writing_files

?
Is there a possibility? It should be on the VFS level to be independent of the used filesystem.

-- 
Best regards

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^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: Help debugging filesystem activity?
  2008-02-11 13:17 Help debugging filesystem activity? rzryyvzy
@ 2008-02-11 13:28 ` Guillaume Chazarain
  2008-02-11 13:53   ` rzryyvzy
  0 siblings, 1 reply; 3+ messages in thread
From: Guillaume Chazarain @ 2008-02-11 13:28 UTC (permalink / raw)
  To: rzryyvzy; +Cc: linux-kernel

On Feb 11, 2008 2:17 PM, rzryyvzy <rzryyvzy@trashmail.net> wrote:
> $ cat /proc/fs/vfs/reading_files
>
> $ cat /proc/fs/vfs/writing_files

You can try:

# echo 1 > /proc/sys/vm/block_dump
# dmesg

HTH.

-- 
Guillaume

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: Help debugging filesystem activity?
  2008-02-11 13:28 ` Guillaume Chazarain
@ 2008-02-11 13:53   ` rzryyvzy
  0 siblings, 0 replies; 3+ messages in thread
From: rzryyvzy @ 2008-02-11 13:53 UTC (permalink / raw)
  To: linux-kernel

Guillaume Chazarain schrieb:
> On Feb 11, 2008 2:17 PM, rzryyvzy <rzryyvzy@trashmail.net> wrote:
>   
>> $ cat /proc/fs/vfs/reading_files
>>
>> $ cat /proc/fs/vfs/writing_files
>>     
>
> You can try:
>
> # echo 1 > /proc/sys/vm/block_dump
> # dmesg
>   
Thanks, it works. This option rocks. I did not know about that.
This is what I really like in Linux: Everything is possible.

-- 
Best regards,
Mika Lawando


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2008-02-11 13:51 UTC | newest]

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2008-02-11 13:17 Help debugging filesystem activity? rzryyvzy
2008-02-11 13:28 ` Guillaume Chazarain
2008-02-11 13:53   ` rzryyvzy

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