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2023-12-04 - 07:23

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #8

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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackcslot8s.osadl.org (updated Mon Dec 04, 2023 00:46:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
613226947,6sleep60-21swapper/619:07:456
125391620,30ptp4l0-21swapper/019:09:240
125391610,15ptp4l0-21swapper/519:05:325
138262600,1sleep61210-21runrttasks21:32:176
618325442,7sleep20-21swapper/219:08:212
618525332,7sleep40-21swapper/419:08:234
125391520,5ptp4l0-21swapper/119:05:461
627524938,6sleep30-21swapper/319:09:343
623324939,6sleep70-21swapper/719:09:067
6593993734,1cyclictest100450irq/31-eno1-rx-21:54:074
125391360,1ptp4l6908-21sort23:45:010
660099352,22cyclictest0-21swapper/520:10:345
125391350,0ptp4l0-21swapper/023:55:240
125391330,3ptp4l0-21swapper/021:00:260
6593993127,1cyclictest100450irq/31-eno1-rx-00:33:344
125391310,0ptp4l0-21swapper/523:50:215
125391300,1ptp4l23015-21grep22:35:300
125391300,0ptp4l0-21swapper/523:20:315
125391300,0ptp4l0-21swapper/521:18:355
125391300,0ptp4l0-21swapper/021:21:090
125391300,0ptp4l0-21swapper/019:45:200
125391290,0ptp4l0-21swapper/522:35:265
125391290,0ptp4l0-21swapper/022:41:390
125391290,0ptp4l0-21swapper/021:52:170
125391280,2ptp4l0-21swapper/423:25:234
125391280,1ptp4l22922-21kworker/u16:000:19:310
125391280,0ptp4l0-21swapper/523:58:285
125391280,0ptp4l0-21swapper/523:18:305
125391280,0ptp4l0-21swapper/500:35:535
125391280,0ptp4l0-21swapper/500:31:145
125391280,0ptp4l0-21swapper/123:12:301
125391280,0ptp4l0-21swapper/023:45:460
125391280,0ptp4l0-21swapper/023:35:190
125391280,0ptp4l0-21swapper/023:15:150
125391280,0ptp4l0-21swapper/021:27:490
125391280,0ptp4l0-21swapper/020:25:270
125391270,2ptp4l0-21swapper/121:35:131
125391270,2ptp4l0-21swapper/023:23:020
125391270,1ptp4l21983-21memory19:40:246
125391270,0ptp4l0-21swapper/622:56:236
125391270,0ptp4l0-21swapper/622:56:236
125391270,0ptp4l0-21swapper/600:22:126
125391270,0ptp4l0-21swapper/523:07:155
125391270,0ptp4l0-21swapper/522:07:285
125391270,0ptp4l0-21swapper/521:58:395
125391270,0ptp4l0-21swapper/500:17:215
125391270,0ptp4l0-21swapper/500:05:135
125391270,0ptp4l0-21swapper/422:54:334
125391270,0ptp4l0-21swapper/421:40:514
125391270,0ptp4l0-21swapper/421:30:264
125391270,0ptp4l0-21swapper/421:29:154
125391270,0ptp4l0-21swapper/100:11:141
125391270,0ptp4l0-21swapper/023:29:020
125391270,0ptp4l0-21swapper/022:15:040
125391260,0ptp4l0-21swapper/522:03:555
125391260,0ptp4l0-21swapper/521:43:385
125391260,0ptp4l0-21swapper/521:14:535
125391260,0ptp4l0-21swapper/500:03:405
125391260,0ptp4l0-21swapper/423:35:194
125391260,0ptp4l0-21swapper/221:25:592
125391260,0ptp4l0-21swapper/123:46:511
125391260,0ptp4l0-21swapper/021:19:030
125391260,0ptp4l0-21swapper/000:12:390
125391250,2ptp4l0-21swapper/121:44:431
125391250,1ptp4l8796-21sh22:15:584
125391250,1ptp4l29914-21diskmemload23:32:325
125391250,1ptp4l10517-21idleruntime23:05:244
125391250,0ptp4l0-21swapper/620:40:236
125391250,0ptp4l0-21swapper/521:51:165
125391250,0ptp4l0-21swapper/521:23:435
125391250,0ptp4l0-21swapper/500:28:295
125391250,0ptp4l0-21swapper/423:55:334
125391250,0ptp4l0-21swapper/422:04:584
125391250,0ptp4l0-21swapper/419:15:244
125391250,0ptp4l0-21swapper/400:26:104
125391250,0ptp4l0-21swapper/121:05:181
125391250,0ptp4l0-21swapper/022:57:220
125391250,0ptp4l0-21swapper/022:57:210
125391250,0ptp4l0-21swapper/022:13:570
125391250,0ptp4l0-21swapper/019:55:000
125391250,0ptp4l0-21swapper/000:04:310
125391240,1ptp4l25595-21date19:50:005
125391240,1ptp4l18087-21ssh22:30:070
125391240,1ptp4l14462-21diskstats20:35:204
125391240,1ptp4l0-21swapper/123:30:271
125391240,0ptp4l0-21swapper/523:47:375
125391240,0ptp4l0-21swapper/522:29:205
125391240,0ptp4l0-21swapper/521:35:305
125391240,0ptp4l0-21swapper/422:32:224
125391240,0ptp4l0-21swapper/422:24:354
125391240,0ptp4l0-21swapper/422:09:084
125391240,0ptp4l0-21swapper/421:38:174
125391240,0ptp4l0-21swapper/400:38:144
125391240,0ptp4l0-21swapper/123:51:091
125391240,0ptp4l0-21swapper/121:30:221
125391240,0ptp4l0-21swapper/120:45:231
125391240,0ptp4l0-21swapper/100:20:081
125391240,0ptp4l0-21swapper/022:06:190
125391240,0ptp4l0-21swapper/021:10:000
125391240,0ptp4l0-21swapper/020:35:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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