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SubjectRe: readprofile from 2.5.25 web server benchmark
Dave Hansen wrote:
>
> ...
> > I'd be interested in the effect of the latter. It's very 2.4-able.
>
> Do you mean 2.5-able?
> http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=smptimers+2.5
>
> I found a couple of 2.5.*teen patches, but they're miles away from
> applying cleanly. Work for tomorrow, sigh...
>

Nah. I mean this technological gem:


--- 2.5.25/kernel/timer.c~timer-speedup Tue Jul 9 00:04:33 2002
+++ 2.5.25-akpm/kernel/timer.c Tue Jul 9 00:06:09 2002
@@ -211,6 +211,9 @@ int mod_timer(struct timer_list *timer,
int ret;
unsigned long flags;

+ if (timer_pending(timer) && timer->expires == expires)
+ return 1;
+
spin_lock_irqsave(&timerlist_lock, flags);
timer->expires = expires;
ret = detach_timer(timer);
-
-
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