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2026-03-09 - 20:35

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, 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 rackbslot8s (updated Mon Mar 09, 2026 12:44:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
377945699129128,1cyclictest3743192-21kworker/6:210:10:336
3778859212394,9sleep10-21swapper/107:07:311
37787912119105,9sleep70-21swapper/707:06:347
37789182116102,9sleep40-21swapper/407:08:224
37790092114100,9sleep30-21swapper/307:09:423
3778822211297,10sleep20-21swapper/207:07:002
377943099111109,2cyclictest553-21snmpd09:51:180
3778959211095,10sleep00-21swapper/007:08:590
3778817210993,10sleep60-21swapper/607:06:576
3778890210894,9sleep50-21swapper/507:07:595
37794519910299,3cyclictest553-21snmpd12:01:105
37794519910299,3cyclictest553-21snmpd11:03:295
37794519910298,1cyclictest553-21snmpd10:54:475
3779451991020,0cyclictest0-21swapper/509:10:465
37794389910299,2cyclictest553-21snmpd09:59:482
3779435991020,100cyclictest0-21swapper/109:25:321
3779460991010,100cyclictest0-21swapper/708:16:027
37794569910199,2cyclictest553-21snmpd12:05:536
37794569910199,2cyclictest553-21snmpd12:05:536
37794569910199,2cyclictest553-21snmpd11:55:466
37794569910199,2cyclictest3743192-21kworker/6:211:25:106
377945699101100,1cyclictest3743192-21kworker/6:212:34:216
377945699101100,1cyclictest3743192-21kworker/6:210:32:566
377945699101100,1cyclictest3743192-21kworker/6:210:20:126
377945699101100,1cyclictest3743192-21kworker/6:209:00:016
377945699101100,1cyclictest3743192-21kworker/6:208:20:156
377945699101100,1cyclictest3743192-21kworker/6:207:25:126
37794519910199,2cyclictest553-21snmpd12:13:085
37794519910199,2cyclictest553-21snmpd12:13:085
3779451991010,99cyclictest0-21swapper/508:21:395
3779451991010,0cyclictest0-21swapper/510:16:185
3779447991010,100cyclictest0-21swapper/410:23:344
3779447991010,100cyclictest0-21swapper/409:50:574
37794429910199,2cyclictest553-21snmpd11:50:343
37794389910199,2cyclictest553-21snmpd08:46:362
37794359910199,2cyclictest553-21snmpd12:05:431
37794359910199,2cyclictest553-21snmpd12:05:431
37794359910199,2cyclictest553-21snmpd09:52:511
37794359910198,3cyclictest553-21snmpd11:56:291
3779435991010,101cyclictest0-21swapper/109:43:261
3779435991010,101cyclictest0-21swapper/108:00:151
3779435991010,100cyclictest0-21swapper/111:04:001
3779435991010,0cyclictest0-21swapper/110:49:051
37794609910098,2cyclictest0-21swapper/711:57:227
3779460991000,99cyclictest0-21swapper/711:25:397
3779460991000,99cyclictest0-21swapper/710:52:067
3779460991000,99cyclictest0-21swapper/709:18:407
3779460991000,100cyclictest0-21swapper/708:20:117
3779460991000,100cyclictest0-21swapper/707:12:127
37794569910099,1cyclictest553-21snmpd10:44:306
37794569910099,1cyclictest553-21snmpd09:10:496
37794569910099,1cyclictest3743192-21kworker/6:212:35:146
37794569910099,1cyclictest3743192-21kworker/6:212:25:176
37794569910099,1cyclictest3743192-21kworker/6:212:20:406
37794569910099,1cyclictest3743192-21kworker/6:212:15:146
37794569910099,1cyclictest3743192-21kworker/6:212:13:286
37794569910099,1cyclictest3743192-21kworker/6:212:13:286
37794569910099,1cyclictest3743192-21kworker/6:212:00:526
37794569910099,1cyclictest3743192-21kworker/6:211:50:126
37794569910099,1cyclictest3743192-21kworker/6:211:46:146
37794569910099,1cyclictest3743192-21kworker/6:211:43:216
37794569910099,1cyclictest3743192-21kworker/6:211:22:196
37794569910099,1cyclictest3743192-21kworker/6:211:13:556
37794569910099,1cyclictest3743192-21kworker/6:211:05:166
37794569910099,1cyclictest3743192-21kworker/6:211:00:126
37794569910099,1cyclictest3743192-21kworker/6:210:51:046
37794569910099,1cyclictest3743192-21kworker/6:210:45:576
37794569910099,1cyclictest3743192-21kworker/6:210:26:546
37794569910099,1cyclictest3743192-21kworker/6:210:19:336
37794569910099,1cyclictest3743192-21kworker/6:210:05:246
37794569910099,1cyclictest3743192-21kworker/6:210:00:126
37794569910099,1cyclictest3743192-21kworker/6:209:47:056
37794569910099,1cyclictest3743192-21kworker/6:209:40:146
37794569910099,1cyclictest3743192-21kworker/6:209:37:086
37794569910099,1cyclictest3743192-21kworker/6:209:21:216
37794569910099,1cyclictest3743192-21kworker/6:208:00:156
37794569910099,1cyclictest3743192-21kworker/6:207:50:106
37794569910099,1cyclictest3743192-21kworker/6:207:40:166
37794569910098,2cyclictest3743192-21kworker/6:209:55:586
37794569910098,2cyclictest3743192-21kworker/6:209:50:296
37794569910098,1cyclictest3743192-21kworker/6:207:55:116
37794569910097,2cyclictest553-21snmpd11:15:196
37794519910099,1cyclictest553-21snmpd10:02:155
37794519910099,1cyclictest553-21snmpd07:48:375
37794519910099,1cyclictest553-21snmpd07:38:195
37794519910099,1cyclictest553-21snmpd07:27:495
37794519910099,1cyclictest0-21swapper/507:12:575
37794519910098,2cyclictest553-21snmpd10:30:555
37794519910097,1cyclictest553-21snmpd07:41:525
37794519910096,2cyclictest553-21snmpd11:21:485
3779451991000,98cyclictest0-21swapper/510:21:285
3779451991000,98cyclictest0-21swapper/507:32:265
3779451991000,100cyclictest0-21swapper/512:16:085
37794479910099,1cyclictest553-21snmpd12:24:364
37794479910099,1cyclictest553-21snmpd11:23:184
37794479910099,1cyclictest553-21snmpd10:35:234
37794479910099,1cyclictest553-21snmpd07:17:514
37794479910099,1cyclictest3865253-21cat09:30:144
37794479910099,1cyclictest3791701-21cat07:30:144
3779447991000,99cyclictest0-21swapper/411:38:164
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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