Hi,
Are there tools or utilities to understand about the reason behind high load on CentOS Linux. Please help me understand with examples.
Regards,
Kaushal
On Mon, Mar 26, 2012 at 11:07 AM, Kaushal Shriyan kaushalshriyan@gmail.com wrote:
Are there tools or utilities to understand about the reason behind high load on CentOS Linux. Please help me understand with examples.
How did you know there is a high load in the first place?
On Mon, Mar 26, 2012 at 8:59 AM, Fajar Priyanto fajarpri@arinet.org wrote:
On Mon, Mar 26, 2012 at 11:07 AM, Kaushal Shriyan kaushalshriyan@gmail.com wrote:
Are there tools or utilities to understand about the reason behind high load on CentOS Linux. Please help me understand with examples.
How did you know there is a high load in the first place?
Using "w" command
First and foremost..."top" is your friend.
On 03/26/2012 07:31 AM, Kaushal Shriyan wrote:
Are there tools or utilities to understand about the reason behind high load on CentOS Linux. Please help me understand with examples.
How did you know there is a high load in the first place?
Using "w" command
- top - iotop
The load average has relationship with I/O.
If you have RAID system, check what the status says you. You might be on a degraded RAID (broken, rebuilding,...) eating much disk I/O.
Hi Kaushal,
in addition to the solution provider by Mihamina to monitor the load average on your server, "htop" on CentOS can be more clear for you to read the output as well.
install rpmforge repo
yum insall htop, type htop when done. look ay load average figure. then find out the cause.
Thanks / Regards Prabhpal
On 03/26/2012 07:31 AM, Kaushal Shriyan wrote:
Are there tools or utilities to understand about the reason behind high load on CentOS Linux. Please help me understand with examples.
How did you know there is a high load in the first place?
Using "w" command
- top
- iotop
The load average has relationship with I/O.
If you have RAID system, check what the status says you. You might be on a degraded RAID (broken, rebuilding,...) eating much disk I/O.
-- RMA. _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On 26.3.2012 07:07, Mihamina Rakotomandimby wrote:
On 03/26/2012 07:31 AM, Kaushal Shriyan wrote:
Are there tools or utilities to understand about the reason behind high load on CentOS Linux. Please help me understand with examples.
The load average has relationship with I/O.
Not necessarily. I would define load as the number of processes who are waiting to get cpu time.
While a process is waiting for cpu there are 2 cases: a) the cpu is blocked waiting for a I/O operation to finish b) the cpu is calculating for another process
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Fajar Priyanto -
Kaushal Shriyan -
Markus Falb -
Mihamina Rakotomandimby -
Mike Burger -
Prabhpal S. Mavi