Andi, On Mon, Nov 21, 2011 at 10:17:59PM +0800, Andi Kleen wrote: > > +static unsigned long ra_stats[RA_PATTERN_MAX][RA_ACCOUNT_MAX]; > > Why not make it per cpu? That should get the overhead down, probably > even enough that it can be enabled by default. > > BTW I have an older framework to make it really easy to add per > cpu stats counters to debugfs. Will repost, that would simplify > it even more. That's definitely a good facility to have. I would be happy to become its first user :) Thanks, Fengguang -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
