On Tue, Aug 27, 2013 at 03:04:54PM -0700, Jarno Rajahalme wrote:
> Batching reduces overheads and enables upto 4 times the upcall processing
> performance in a specialized test case.
>
> Signed-off-by: Jarno Rajahalme <[email protected]>
Nice!
> + for (n = 0; n < udpif->n_handlers; ++n) {
> + handler = &udpif->handlers[n];
> + if (handler->n_new_upcalls) {
> + handler->n_new_upcalls = 0;
> + xpthread_cond_signal(&handler->wake_cond);
> + }
Usually there's a race if one signals a condition variable without
holding the corresponding mutex. Did you check that there is no race
here?
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