On Thu, Jan 12, 2023 at 03:03:56PM +0100, Niklas Cassel wrote: > From: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx> > > Introduce the IOPRIO_CLASS_DL priority class to indicate that IOs should > be executed using duration-limits targets. The duration target to apply > to a command is indicated using the priority level. Up to 8 levels are > supported, with level 0 indiating "no limit". > > This priority class has effect only if the target device supports the > command duration limits feature and this feature is enabled by the user. > In BFQ and mq-deadline, all requests with this new priority class are > handled using the highest priority class RT and priority level 0. Hmm, does it make sense to force a high priority? Can't applications use CDL to also fore a lower priority?
