On Wed, 2011-06-15 at 13:52 +0200, Peter Zijlstra wrote: > /me goes re-test without the sirq-rcu bits mixed in just to make sure. I switched from PREEMPT=n to PREEMPT_VOLUNTARY=y, which seemed to make a difference: .39 257.651 messages/sec/core -tip 254.976 messages/sec/core +linus 258.03 messages/sec/core +sirq 265.951 messages/sec/core -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href