Gluster users - Jul 2017 - High load on CPU due to glusterfsd process

Hi Team,

Whenever I am performing the IO operation on gluster volume, the loads is
getting increase on CPU which reaches upto 70-80 sometimes.

when we started debugging, found that the io_worker thread is created to
server the IO request and consume high CPU till that request gets completed.

Could you please let me know why io_worker thread takes this much of CPU.

Is there any way to resole this?

-- 

Regards
Abhishek Paliwal
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Could you please response?

On Fri, Jul 28, 2017 at 5:55 PM, ABHISHEK PALIWAL <abhishpaliwal at
gmail.com>
wrote:
> Hi Team,
>
> Whenever I am performing the IO operation on gluster volume, the loads is
> getting increase on CPU which reaches upto 70-80 sometimes.
>
> when we started debugging, found that the io_worker thread is created to
> server the IO request and consume high CPU till that request gets
completed.
>
> Could you please let me know why io_worker thread takes this much of CPU.
>
> Is there any way to resole this?
>
> --
>
> Regards
> Abhishek Paliwal
>


-- 




Regards
Abhishek Paliwal
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Hi, 

The issue you are seeing is a little complex one but information you have
provided is very less.
- Volume info 
- Volume status? 
- What kind of IO is going on? 
- Any brick is down or not? 
- Snapshot of Top command. 
- Anything you are seeing in glustershd or mount logs or bricks logs? 

--- 
Ashish 

----- Original Message -----

From: "ABHISHEK PALIWAL" <abhishpaliwal at gmail.com> 
To: "gluster-users" <gluster-users at gluster.org>,
"Gluster Devel" <gluster-devel at gluster.org>
Sent: Wednesday, August 2, 2017 1:49:30 PM 
Subject: Re: [Gluster-devel] High load on CPU due to glusterfsd process 

Could you please response? 

On Fri, Jul 28, 2017 at 5:55 PM, ABHISHEK PALIWAL < abhishpaliwal at
gmail.com > wrote:



Hi Team, 

Whenever I am performing the IO operation on gluster volume, the loads is
getting increase on CPU which reaches upto 70-80 sometimes.

when we started debugging, found that the io_worker thread is created to server
the IO request and consume high CPU till that request gets completed.

Could you please let me know why io_worker thread takes this much of CPU. 

Is there any way to resole this? 

-- 

Regards 
Abhishek Paliwal 






-- 




Regards 
Abhishek Paliwal 

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