| Date | Sat, 28 Apr 2007 14:49:55 +1000 | From | Paul Mackerras <> | Subject | Re: [patch 20/38] Minor fault path optimization. |
| |
Martin Schwidefsky writes:
> The minor fault path has grown a lot in terms of cycles. In particular > the kprobes hook is very costly. Optimize the path to save a couple of > cycles. If kprobes is enabled more than 300 cycles can be avoided if > kprobes_running() is false.
There's no good reason to use a notifier for page faults, since there's only one external piece of code that wants to know about them...
Regards, Paul. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|