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What process is writing to disk?

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# 15  
Old 10-29-2008
There is another nice method:
check man 5 proc for the columns that you want to monitor and run something like this:

Code:
awk '{print $1,":", $12}' /proc/[0-9]*/stat|sort -t: -k2rn

# 16  
Old 10-29-2008
Quote:
Originally Posted by otheus
That's pretty cool, but like you said, it's not IO activity but page faults. Since we're not swapping, this really doesn't tell us anything. But just to be sure, stopping the biggist pagefaulter had no effect on io load. Smilie
Hm ...,
you're right, you need a kernel patch for this Smilie

link
# 17  
Old 10-29-2008
Ah crap... From collectl - Process Monitoring
Quote:
Process I/O monitoring is limited to kernels that have that capability enabled and that didn't even appear before 2.6.22. If you don't see the file /proc/self/io, your kernel was not built with process I/O accounting enabled and you need to get one that has the following enabled: CONFIG_TASKSTATS, CONFIG_TASK_XACCT and CONFIG_TASK_IO_ACCOUNTING.
We're running 2.6.18.
# 18  
Old 10-29-2008
...
I hate guessing, but I think it's your best bet now: what application(s) is/are running on this server?
# 19  
Old 10-29-2008
Oh, just SAMBA, MySQL, mcast, proftpd, clam ... nothing much. Smilie
# 20  
Old 10-29-2008
Ah ...
Did you try to stop mysql (if possible given your SLA, of course Smilie)?
# 21  
Old 10-29-2008
What does your smb.conf file look like?
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