Messages in this thread | | | Date | Sat, 24 Jul 2010 04:51:35 -0400 | From | Christoph Hellwig <> | Subject | Re: [RFC PATCH] cfq-iosced: Implement IOPS mode and group_idle tunable V3 |
| |
To me this sounds like slice_idle=0 is the right default then, as it gives useful behaviour for all systems linux runs on. Setups with more than a few spindles are for sure more common than setups making use of cgroups. Especially given that cgroups are more of a high end feature you'd rarely use on a single SATA spindle anyway. So setting a paramter to make this useful sounds like the much better option.
Especially given that the block cgroup code doesn't work particularly well in presence of barriers, which are on for any kind of real life production setup anyway.
| |