Re: [RFC PATCH 00/14] nfsd/sunrpc: add support for a workqueue-based nfsd

From: Tejun Heo
Date: Tue Dec 02 2014 - 14:30:58 EST

On Tue, Dec 02, 2014 at 02:18:14PM -0500, Tejun Heo wrote:
> unbound. If strict cpu locality is likely to be beneficial and each
> work item isn't likely to consume huge amount of cpu cycles,
> WQ_CPU_INTENSIVE would fit better; otherwise, WQ_UNBOUND to let the
> scheduler do its thing.

Hmmm... but you're already using WQ_UNBOUND. Concurrency management
doesn't matter for unbound workqueues. They really just behave as
shared worker thread pools. Does turning on WQ_HIGHPRI change
anything? Workqueue always prefers hot workers which can lead to the
hot ones being penalized for consuming too much CPU time.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at