On Tue, Jul 03, 2012 at 11:59:51AM +0100, Mel Gorman wrote: > > Can you run latencytop to see > > if there is excessive starvation/wait times for allocation > > completion? > > I'm not sure what format you are looking for. latencytop is shit for > capturing information throughout a test and it does not easily allow you to > record a snapshot of a test. You can record all the console output of course > but that's a complete mess. I tried capturing /proc/latency_stats over time > instead because that can be trivially sorted on a system-wide basis but > as I write this I find that latency_stats was bust. It was just spitting out > > Latency Top version : v0.1 > > and nothing else. Either latency_stats is broken or my config is. Not sure > which it is right now and won't get enough time on this today to pinpoint it. > PEBKAC. Script that monitored /proc/latency_stats was not enabling latency top via /proc/sys/kernel/latencytop -- Mel Gorman SUSE Labs -- 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
