* Christoph Hellwig <[email protected]> wrote:
> > which actual in-kernel tasklets do you have in mind? I'm not aware
> > of any in performance critical code. (now that both the RCU and the
> > sched tasklet has been fixed.)
>
> the one in megaraid_sas for example is in a performance-critical path
> and was put in quite recently.
ah, i thought core kernel. I took a look, and i doubt that doing the
megaraid SAS thing over a kernel thread would show up on the radar. If
it does then it should probably be done in its separate per-CPU
workqueue anyway, not in a globally scheduled thing like a tasklet.
Tasklets just dont scale.
Ingo
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