Red Hat Bugzilla – Bug 472818
reassess the default I/O scheduler for RHEL
Last modified: 2010-11-11 09:41:37 EST
Description of problem:
The default I/O scheduler for the kernel is cfq, and RHEL inherits this. Let's reassess this based on performance numbers in a variety of workloads that our customers care about.
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release. Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release. This request is not yet committed for
cfq is the default IO scheduler in 6.0. Performance and scheduling issues that have come are being handled by separate bugs so I think we can go ahead and verify this one.
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.