Messages in this thread | | | Subject | Re: [Resend PATCH v8 0/4] sched: Rewrite runnable load and utilization average tracking | From | Wanpeng Li <> | Date | Thu, 18 Jun 2015 19:48:00 +0800 |
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On 6/18/15 6:46 AM, Yuyang Du wrote: > On Thu, Jun 18, 2015 at 02:31:00PM +0800, Wanpeng Li wrote: >> On 6/17/15 11:11 AM, Yuyang Du wrote: >>> Hi, >>> >>> The sched_debug is informative, lets first give it some analysis. >>> >>> The workload is 12 CPU hogging tasks (always runnable) and 1 dbench >>> task doing fs ops (70% runnable) running at the same time. >>> >>> Actually, these 13 tasks are in a task group /autogroup-9617, which >>> has weight 1024. >>> >>> So the 13 tasks at most can contribute to an average of 79 (=1024/13) >>> to the group entity's load_avg: >>> >>> cfs_rq[0]:/autogroup-9617 >>> .se->load.weight : 2 >>> .se->avg.load_avg : 0 >>> >>> cfs_rq[1]:/autogroup-9617 >>> .se->load.weight : 80 >>> .se->avg.load_avg : 79 >>> >>> cfs_rq[2]:/autogroup-9617 >>> .se->load.weight : 79 >>> .se->avg.load_avg : 78 >>> >>> cfs_rq[3]:/autogroup-9617 >>> .se->load.weight : 80 >>> .se->avg.load_avg : 81 >>> >>> cfs_rq[4]:/autogroup-9617 >>> .se->load.weight : 80 >>> .se->avg.load_avg : 79 >>> >>> cfs_rq[5]:/autogroup-9617 >>> .se->load.weight : 79 >>> .se->avg.load_avg : 77 >>> >>> cfs_rq[6]:/autogroup-9617 >>> .se->load.weight : 159 >>> .se->avg.load_avg : 156 >>> >>> cfs_rq[7]:/autogroup-9617 >>> .se->load.weight : 64 (dbench) >>> .se->avg.load_avg : 50 >> How you figure out this one is dbench? >> > dbench is on CPU7 and running there?
Sorry, do you mean you pin dbench to CPU7?
Regards, Wanpeng Li
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