Ingo Molnar wrote:
so how about the following, different approach: anyone who has a tasklet
in any performance-sensitive codepath, please yell now.
ALSA uses quite a few tasklets in the framework and in several
drivers. Since we
care very much about low latency, many places use tasklet_hi_*.
It would be possible to convert to some GENERIC_SOFTIRQ mechanism, but
then we'd
want to use a softirq that has higher priority than the 'standard' generic
softirq, similar to HI_SOFTIRQ vs. TASKLET_SOFTIRQ.
BTW: Is there a reason why HRTIMER_SOFTIRQ is the lowest-priority
softirq instead
of being near TIMER_SOFTIRQ?
Regards,
Clemens
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