From: Eric Dumazet <[EMAIL PROTECTED]> Date: Wed, 14 Nov 2007 22:34:13 +0100
> On commit 39c90ece7565f5c47110c2fa77409d7a9478bd5b we converted > rt_check_expire() from softirq to workqueue, allowing the function to perform > all work it was supposed to do. > > When the IP route cache is big, rt_check_expire() can take a long time to run. > (default settings : 20% of the hash table is scanned at each invocation) > > Adding cond_resched() helps giving cpu to higher priority tasks if necessary. > > Using a "if (need_resched())" test before calling "cond_resched();" is > necessary to avoid spending too much time doing the resched check. > (My tests gave a time reduction from 88 ms to 25 ms per rt_check_expire() run > on my i686 test machine) > > Signed-off-by: Eric Dumazet <[EMAIL PROTECTED]> Patch applied, thanks! - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
