[pve-devel] switch to deadline scheduler by default
Alexandre DERUMIER
aderumier at odiso.com
Wed Mar 14 10:55:29 CET 2012
Hi,
I see some user reports about io problem with cfq scheduler
http://forum.proxmox.com/threads/8661-Proxmox-soft-lockups-on-megaraid-controller?p=49095#post49095
http://forum.proxmox.com/threads/7764-i-o-problem/page2
What do you think about switching to deadline scheduler by default ?
Also deadline perform with with virtio devices (this is the default scheduler for rhev)
For my iscsi san, it also perform better.
just put
GRUB_CMDLINE_LINUX_DEFAULT="elevator=deadline"
in /etc/default/grub
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