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2024-09-11 - 14:49
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #3, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System (updated Wed Sep 11, 2024 12:46:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
300659211151098,7sleep1299971-21kworker/1:0+events@
dbs_work_handler		07:06:171
30176199155149,2cyclictest0-21swapper/410:36:434
30174699140106,13cyclictest404328-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		12:25:080
3017469913191,19cyclictest358199-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		10:25:040
3017469913191,19cyclictest358199-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		10:25:030
301746991241,88cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		09:43:370
301746991202,81cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		07:50:130
301746991202,81cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		07:50:130
30176199118113,2cyclictest0-21swapper/411:35:034
301746991181,72cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		08:35:130
301746991181,72cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		08:35:130
301746991151,64cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		11:41:200
30176699113106,3cyclictest0-21swapper/511:15:045
30176699113106,3cyclictest0-21swapper/511:15:035
3017469911239,29cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		08:46:170
3017469911239,29cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		08:46:170
301746991122,80cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		08:02:260
3017579911191,12cyclictest207-21kswapd010:23:043
3017469911138,31cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		11:11:250
3017469911048,25cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		11:23:320
301746991101,81cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		07:41:040
301746991101,67cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		11:16:200
301746991101,67cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		11:16:200
30176699109102,3cyclictest0-21swapper/508:29:465
3017469910987,14cyclictest361044-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		10:36:430
301746991042,70cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		07:11:170
301746991042,70cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		07:11:160
3017469910257,23cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		12:01:080
301746991022,72cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		07:15:230
301746991022,72cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		07:15:220
3017469910143,5cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		12:38:310
3017469910049,26cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		08:06:090
301753999986,6cyclictest393732-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		11:55:062
301746999953,24cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		11:30:590
301753999685,5cyclictest358199-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		10:17:412
301746999563,22cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		12:10:350
301746999555,25cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		10:51:160
301746999453,23cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		12:31:470
30174699941,65cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		08:23:110
301746999370,13cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		11:53:330
301746999350,24cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		11:06:240
301757999277,8cyclictest361044-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		10:35:433
301746999251,24cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		08:41:120
301746999145,25cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		11:56:240
301761999084,3cyclictest0-21swapper/412:30:084
301746999042,25cyclictest359927-21kworker/0:2+events@
igb_watchdog_task		11:36:160
301746998947,24cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		08:56:230
301746998928,37cyclictest377213-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		11:26:510
301749998875,6cyclictest361044-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		10:35:411
301746998860,13cyclictest140575-21kworker/0:1+events@
igb_watchdog_task		08:26:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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