* Clark Williams | 2015-08-03 13:53:26 [-0500]: >On Mon, 3 Aug 2015 21:36:26 +0300 > >Interesting. Betting that's page faults and cache filling. > >I don't think we want to arbitrarily pick some number of cycles for a >"settle time" (i.e. a grace period for the application to reach steady >state). Possibly we should add an option for that? Specify some number >of cycles or some amount of time that where the measurement threads run >before actual measurements start? > > $ cyclictest --numa -p95 -m --settle=10ms > >That would say "run the measurement threads for ten milliseconds before >actually starting the measurement period". That would allow them to >fault in and fill cache lines before starting real work. > >Anyone else have an opinion? Wouldn't you have everything in-memory after once cycle of each thread? >Clark Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
