Facing the COW Vulnerability, I updated my server kernel on Nov 11th.
My Centos server to is now running version 2.6.32-642.6.2.el6.x86_64.
After rebooting the server, I noticed a huge increase in disk utilization and IO wait.
I decided to wait a few days and it more than tripled on average.
Am I the only one who saw that occure or is there a way to fix this?
See attachment for Munin Graph. (Daily spikes are backup processes)
Slower disk after Kernel update
Re: Slower disk after Kernel update
Anyone? Could it be due to this bug :
https://bugzilla.kernel.org/show_bug.cgi?id=12309
https://bugzilla.kernel.org/show_bug.cgi?id=12309
Re: Slower disk after Kernel update
Highly unlikely.
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke