Messages in this thread | ![/](/images/icornerl.gif) | | Date | Wed, 18 Jan 2023 08:25:57 -1000 | From | Tejun Heo <> | Subject | Re: [PATCH] workqueue: Add WQ_SCHED_FIFO |
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On Wed, Jan 18, 2023 at 10:22:32AM -0800, Sandeep Dhavale wrote: > If with the kernel config option, every WQ_HIGHPRI is elevated to > sched_fifo_low, wouldn't that be kind of defeating the purpose? Having > another class for even more urgent work is better in my opinion.
I mean, everybody thinks their work items are the most important. Even with explicit FIFO, you're still gonna have similar problems as people crowd that flag. If this is a concern, please benchmark with realistic scenarios and consider other options (e.g. maybe that problematic workqueue doesn't need to be HIGHPRI or should be split somehow). Right now, I don't think there are enough justifications for adding another level.
Thanks.
-- tejun
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