Hello Gianluca, Wednesday, January 18, 2017, 3:54:15 PM, you wrote: > In the mean time, if you have not disabled it, you should find some > collected statistics from sysstat/sar. > Look at the sarXX files under /var/log/sa. They should be kept for 30 day > by default in CentOS 7. Unfortunately, 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 > https://lists.centos.org/mailman/listinfo/centos -- Best regards, Subscriber mailto:ml-lists at agoris.net.ua