search for: blackmoreops

Hello , After upgrading the system from CentOS 7.2.1511 to CenOS 7.3.1611 I see that the average processing time has increased from 5-7% to 12-15% (doubled). Not critical but it is not pleasant. Server as KVM with 5 virtual machines. Someone noticed something similar? If so, how to fix that? Thx.

Hello , After upgrading the system from CentOS 7.2.1511 to CenOS 7.3.1611 I see that the average processing time has increased from 5-7% to 12-15% (doubled). Not critical but it is not pleasant. Server as KVM with 5 virtual machines. Someone noticed something similar? If so, how to fix that? Thx.

...r /var/log/sa. They should be kept for 30 day by default in CentOS 7. So you can compare cpu, mem, I/O profiles before and after the upgrade. If you have access to Red Hat documents you can look also here: https://access.redhat.com/articles/325783 or in general some articles like this: https://www.blackmoreops.com/2014/06/18/sysstat-sar-examples-usage/ and to create pdf graphics with kSar https://www.thomas-krenn.com/en/wiki/Linux_Performance_Analysis_using_kSar HIH, Gianluca

..., on that host such statistics is disabled. > So you can compare cpu, mem, I/O profiles before and after the upgrade. > If you have access to Red Hat documents you can look also here: > https://access.redhat.com/articles/325783 > or in general some articles like this: > https://www.blackmoreops.com/2014/06/18/sysstat-sar-examples-usage/ > and to create pdf graphics with kSar > https://www.thomas-krenn.com/en/wiki/Linux_Performance_Analysis_using_kSar > HIH, > Gianluca > _______________________________________________ > CentOS mailing list > CentOS at centos.org >...

> Please check if there is also error log contained OOM kill? It does not appear. On Wed, Dec 7, 2016 at 4:41 PM, -=X.L.O.R.D=- <xlord.sl at gmail.com> wrote: > Dear, > Please check if there is also error log contained OOM kill? > > Xlord > > -----Original Message----- > From: CentOS-virt [mailto:centos-virt-bounces at centos.org] On Behalf Of Gokan > Atmaca >