Hi Nicholas, On 17-04-2021 20:57, Paul Gevers wrote: > On 17-04-2021 00:35, Nicholas D Steeves wrote: >> Last I checked, only btrfs supports the cgroupv2 I/O controller; this >> should probably be documented. Alternatively, if more than btrfs (ie: >> XFS and ext4) supports it, but not other file systems (ie: f2fs, >> reiser4, jfs, etc) than this should be documented. >> >> As far as I can tell, the significance of this is as follows: Buster >> switched to mq-deadline, which does not support the idle I/O priority, >> and to get functional ionice the user/sysadmin had to switch to the >> non-mq CFQ, or bfq. The situation in a default Bullseye install is >> better, but only for file systems that support the cgroupv2 I/O >> controller. > > As I don't have much knowledge on this front, can you maybe do an actual > proposal for text to be added? And, if you're unsure, how do we find out > if you're right? For this one too: friendly ping. Paul
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