[Users] iosched question

Matt Ayres matta at tektonic.net
Thu Jun 12 09:36:55 EDT 2008

Dietmar Maurer wrote:
> Hi all,
> whats the best iosched for openvz servers. I found:
> "The deadline scheduler uses five I/O queues to keep track of I/O. It's
> designed to emphasize
> average read-request response time for workloads that seek all over the
> disk."
> Maybe the deadline scheduler is better than using the default cfq?
deadline may provide overall more system throughput, but the OpenVZ I/O 
priorities are an extension of the CFQ elevator so no CFQ = no I/O 


More information about the Users mailing list