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List:       centos
Subject:    Re: [CentOS] Disk read io very high, but no process perform io read
From:       Thomas Stephen Lee <lee.iitb () gmail ! com>
Date:       2021-03-10 6:42:00
Message-ID: CAG7s96UMuEd0er=w-+3z4p9qiOrtAjdgv2Yf9_wz+1sBLK+mKA () mail ! gmail ! com
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On Sat, Mar 6, 2021 at 6:37 AM yf chu <cyflhn@163.com> wrote:
> 
> no, not vm
> 
> 
> 
> 
> > > 
> yf chu
> > 
> > 
> 邮箱：cyflhn@163.com
> > 
> 
> 签名由 网易邮箱大师 定制
> 
> On 03/05/2021 23:37, Matthew Miller wrote:
> On Fri, Mar 05, 2021 at 03:54:14PM +0800, yf chu wrote:
> > We have experienced a very weird problem. The load of the server machine is very \
> > high. We use "pidstat" and find that the disk read io is very high.
> 
> Is this system a VM?
> 
> --
> Matthew Miller
> <mattdm@fedoraproject.org>
> Fedora Project Leader

Hi,

Is this due to swapping?

what is the output of

free -m

---
Lee
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