Help debugging filesystem activity?

Help debugging filesystem activity?

[rzryyvzy]

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.

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Re: Help debugging filesystem activity?

[Guillaume Chazarain]

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

Re: Help debugging filesystem activity?

[rzryyvzy]

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.

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Best regards,
Mika Lawando