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2024-05-08 - 19:34

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #3

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 rack0slot3s.osadl.org (updated Wed May 08, 2024 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23070952253231,12sleep70-21swapper/719:08:557
23069802248229,10sleep10-21swapper/119:07:371
23069612247230,9sleep60-21swapper/619:07:266
23069212243222,12sleep40-21swapper/419:07:004
23070902242220,12sleep20-21swapper/219:08:512
23068562239217,13sleep00-21swapper/019:06:070
23068322239217,13sleep30-21swapper/319:05:473
23068952237217,12sleep50-21swapper/519:06:375
2307438995810,47cyclictest0-21swapper/321:36:263
2307438995810,47cyclictest0-21swapper/321:25:593
230743899579,47cyclictest0-21swapper/323:51:013
230743899569,46cyclictest0-21swapper/320:15:493
2307438995454,0cyclictest0-21swapper/323:20:333
2307438995420,34cyclictest0-21swapper/322:12:233
2307438995410,43cyclictest2336002-21kworker/3:2+mm_percpu_wq22:42:063
2307438995410,43cyclictest0-21swapper/321:47:113
23421142500,0sleep00-21swapper/022:45:010
2307444995050,0cyclictest0-21swapper/523:51:025
2307444995050,0cyclictest0-21swapper/520:15:505
2307433995048,1cyclictest2271570-21kworker/1:1+events21:36:251
2307433995048,1cyclictest2271570-21kworker/1:1+events21:26:001
2307444994949,0cyclictest0-21swapper/521:25:595
2307433994947,1cyclictest2301558-21kworker/1:2+events23:51:021
2307433994947,1cyclictest2271570-21kworker/1:1+events20:15:491
2307444994848,0cyclictest0-21swapper/521:36:255
2307438994848,0cyclictest0-21swapper/300:12:223
2307438994813,34cyclictest2320323-21kworker/3:2+events20:45:333
2307444994742,1cyclictest0-21swapper/523:01:495
2307438994745,1cyclictest0-21swapper/320:57:533
2307438994713,34cyclictest0-21swapper/320:13:133
2307438994712,34cyclictest2320323-21kworker/3:2+mm_percpu_wq21:03:573
2307438994712,34cyclictest0-21swapper/319:33:133
2307438994712,34cyclictest0-21swapper/300:28:163
2307438994646,0cyclictest0-21swapper/323:14:483
2307438994646,0cyclictest0-21swapper/319:35:363
2307438994645,1cyclictest2336002-21kworker/3:2+mm_percpu_wq22:32:323
2307438994645,0cyclictest2314814-21kworker/3:0+events19:51:543
2307438994645,0cyclictest0-21swapper/320:50:243
2307438994634,12cyclictest0-21swapper/323:15:583
2307438994611,34cyclictest2341742-21kworker/3:1+events23:01:503
2307438994611,34cyclictest0-21swapper/323:41:523
2307438994611,34cyclictest0-21swapper/320:35:223
2307438994611,34cyclictest0-21swapper/319:26:573
2307438994611,34cyclictest0-21swapper/300:15:093
2307438994545,0cyclictest0-21swapper/322:00:223
2307438994545,0cyclictest0-21swapper/300:20:023
2307438994544,0cyclictest0-21swapper/322:29:023
2307438994544,0cyclictest0-21swapper/322:29:013
2307438994511,34cyclictest0-21swapper/300:09:133
2307438994510,34cyclictest2314814-21kworker/3:0-events19:55:253
2307438994510,34cyclictest2309681-21kworker/3:1+mm_percpu_wq19:47:253
2307438994510,34cyclictest0-21swapper/323:56:343
2307438994510,34cyclictest0-21swapper/323:50:003
2307438994510,34cyclictest0-21swapper/323:05:573
2307438994510,34cyclictest0-21swapper/322:58:243
2307438994510,34cyclictest0-21swapper/321:53:183
2307438994510,34cyclictest0-21swapper/321:40:493
2307438994510,34cyclictest0-21swapper/321:30:403
2307438994510,34cyclictest0-21swapper/321:16:233
2307438994510,34cyclictest0-21swapper/321:06:563
2307438994510,34cyclictest0-21swapper/320:40:253
2307438994510,34cyclictest0-21swapper/320:30:233
2307438994510,34cyclictest0-21swapper/320:28:473
2307438994510,34cyclictest0-21swapper/320:21:063
2307438994510,34cyclictest0-21swapper/319:21:523
2307438994510,34cyclictest0-21swapper/300:39:503
2307438994510,34cyclictest0-21swapper/300:31:333
230743899449,34cyclictest2336002-21kworker/3:2+mm_percpu_wq22:36:233
230743899449,34cyclictest0-21swapper/322:50:313
230743899449,34cyclictest0-21swapper/322:08:323
230743899449,34cyclictest0-21swapper/321:55:053
230743899449,34cyclictest0-21swapper/321:11:573
2307438994444,0cyclictest2314814-21kworker/3:0+mm_percpu_wq20:00:413
2307438994444,0cyclictest2309681-21kworker/3:1+mm_percpu_wq19:40:493
2307438994443,1cyclictest0-21swapper/323:35:433
2307438994443,1cyclictest0-21swapper/320:09:463
2307438994434,10cyclictest0-21swapper/322:19:583
2307438994410,34cyclictest0-21swapper/319:12:253
230743899439,34cyclictest0-21swapper/323:26:243
230743899439,34cyclictest0-21swapper/322:45:063
2307438994210,32cyclictest0-21swapper/300:03:443
2307438994036,4cyclictest0-21swapper/319:15:113
2307444993937,1cyclictest0-21swapper/500:20:025
2307438993931,4cyclictest0-21swapper/323:31:343
2307438993931,4cyclictest0-21swapper/322:24:583
2307433993836,1cyclictest2353978-21kworker/1:1+events00:20:011
2307444993737,0cyclictest0-21swapper/522:29:025
2307444993737,0cyclictest0-21swapper/522:29:025
2307444993736,1cyclictest0-21swapper/520:57:535
2307433993735,1cyclictest2335296-21kworker/1:0+events22:29:021
2307433993735,1cyclictest2335296-21kworker/1:0+events22:29:011
2307433993735,1cyclictest2271570-21kworker/1:1+events20:57:541
2307444993635,1cyclictest0-21swapper/523:35:445
2307444993635,0cyclictest0-21swapper/520:50:235
2307438993630,4cyclictest0-21swapper/321:22:503
2307433993634,1cyclictest2271570-21kworker/1:1+events20:50:231
2307433993634,1cyclictest2271570-21kworker/1:1+events20:09:451
2307449993532,2cyclictest1657-21snmpd23:06:197
2307444993535,0cyclictest0-21swapper/522:39:365
2307444993535,0cyclictest0-21swapper/520:09:455
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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