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тАО03-28-2012 05:33 AM
тАО03-28-2012 05:33 AM
process consume the filesystem by high io
Hi,
my system is running with high disk load , and cpu/memory load is very low.
So how could I find which process is now consuming the largest system IO resource?
Thank you
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тАО03-28-2012 11:56 AM
тАО03-28-2012 11:56 AM
Re: process consume the filesystem by high I/O
Do you have glance/gpm installed?
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тАО03-30-2012 11:26 PM
тАО03-30-2012 11:26 PM
Re: process consume the filesystem by high I/O
Hi,
Yes i have glance
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тАО03-31-2012 12:30 AM
тАО03-31-2012 12:30 AM
Re: process consume the filesystem by high I/O
>Yes I have glance
Then look at all of the processes and find the one with high I/O.
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тАО04-01-2012 06:19 PM
тАО04-01-2012 06:19 PM
Re: process consume the filesystem by high I/O
When you run Glance, you have several choices to display the order of the interesting processes. When running glance, always use the ? command to show the 1-character commands available while glance is running. There are 2 pages of commands -- be sure to type f to go forward or b to go backward. To change the order of the processes, type o (the letter o, not zero) then 1 ENTER, or just ENTER. You'll see a screen like this:
INTERESTING PROCESS THRESHOLD OPTIONS Display processes with resource usage: Current Thresholds: CPU Utilization > (5.0 % ) Disk I/O Rate > (5.0 IOs/sec) Resident Set Size > (99 Mbytes ) Virtual Set Size > (99 Mbytes ) User name = (all ) Program name = (all ) TTY path name = (all ) Use match logic (and/or) : (or ) Sort key (name/cpu/disk/rss): (disk )
Change the threshold for disk I/Os (5 or 10 is good) and then change the sort key to disk. Save this setting and now your glance listing will show the processes that use the most disk I/O at the top of the list.
Bill Hassell, sysadmin
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