On Tue, Jul 12, 2011 at 10:30:35PM +0200, Jens Axboe wrote: > It's probably the grouping, we need to do something about that. Does the > below patch make it behave as you expect? "something", absolutely. But there is benefit from doing some aggregation (we tried disabling it entirely with the "well-known OLTP benchmark" and performance went down). Ideally we'd do something like "if the softirq is taking up more than 10% of a core, split the grouping". Do we have enough stats to do that kind of monitoring? -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
