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2025-12-09 - 23:05

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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.
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 rack0slot4s.osadl.org (updated Tue Dec 09, 2025 00:47:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8218572361319,34sleep60-21swapper/619:09:5512
8218572361319,34sleep60-21swapper/619:09:5512
8215802361343,11sleep10-21swapper/119:06:051
8215802361343,11sleep10-21swapper/119:06:051
8184172360342,11sleep110-21swapper/1119:05:103
8184172360342,11sleep110-21swapper/1119:05:103
8217412353311,14sleep50-21swapper/519:08:1911
8217412353311,14sleep50-21swapper/519:08:1911
8218342352330,13sleep20-21swapper/219:09:358
8218342352330,13sleep20-21swapper/219:09:358
8216942352331,14sleep150-21swapper/1519:07:397
8216942352331,14sleep150-21swapper/1519:07:397
8216502352329,14sleep100-21swapper/1019:07:022
8216502352329,14sleep100-21swapper/1019:07:022
8217082351330,13sleep120-21swapper/1219:07:524
8217082351330,13sleep120-21swapper/1219:07:524
8216062350331,12sleep80-21swapper/819:06:2814
8216062350331,12sleep80-21swapper/819:06:2814
8216372346326,13sleep30-21swapper/319:06:559
8216372346326,13sleep30-21swapper/319:06:559
8215862346326,13sleep70-21swapper/719:06:1113
8215862346326,13sleep70-21swapper/719:06:1113
8216072345324,13sleep90-21swapper/919:06:2915
8216072345324,13sleep90-21swapper/919:06:2915
8217522343321,14sleep140-21swapper/1419:08:286
8217522343321,14sleep140-21swapper/1419:08:276
8215592343322,14sleep40-21swapper/419:05:5210
8215592343322,14sleep40-21swapper/419:05:5210
8217682342321,14sleep130-21swapper/1319:08:435
8217682342321,14sleep130-21swapper/1319:08:425
8215982341319,14sleep00-21swapper/019:06:210
8215982341319,14sleep00-21swapper/019:06:210
9180422570,0sleep30-21swapper/321:00:269
82232799350,24cyclictest0-21swapper/521:12:2611
82235399340,30cyclictest0-21swapper/1300:31:085
82234899343,30cyclictest813267-21kworker/u32:4+flush-259:019:46:424
82235899330,32cyclictest0-21swapper/1500:34:297
822353993329,3cyclictest2395797-21snmpd23:46:365
822325993333,0cyclictest774585-21kworker/4:0+events19:10:0510
822325993333,0cyclictest774585-21kworker/4:0+events19:10:0510
822358993229,3cyclictest937726-21mii-tool21:25:167
82235899320,31cyclictest0-21swapper/1520:11:087
822344993229,3cyclictest2395797-21snmpd21:08:373
82234499320,31cyclictest0-21swapper/1119:12:243
82234499320,31cyclictest0-21swapper/1119:12:243
82233999320,29cyclictest0-21swapper/1020:30:162
822335993228,4cyclictest2395797-21snmpd20:25:3515
82233599320,7cyclictest0-21swapper/921:20:1215
82231199320,29cyclictest0-21swapper/019:15:010
82231199320,29cyclictest0-21swapper/019:15:000
822358993130,1cyclictest2395797-21snmpd21:51:267
82235899310,30cyclictest0-21swapper/1521:34:517
822353993129,2cyclictest0-21swapper/1320:05:565
82235399310,30cyclictest0-21swapper/1323:50:275
82235399310,30cyclictest0-21swapper/1323:05:015
822348993128,3cyclictest2395797-21snmpd22:39:054
82234899310,30cyclictest0-21swapper/1222:20:104
82234899310,30cyclictest0-21swapper/1222:20:104
82234899310,30cyclictest0-21swapper/1221:59:374
82234899310,30cyclictest0-21swapper/1221:32:274
82234899310,30cyclictest0-21swapper/1221:06:514
82234899310,30cyclictest0-21swapper/1220:08:404
82234899310,30cyclictest0-21swapper/1220:02:044
82234899310,30cyclictest0-21swapper/1219:51:484
82234899310,30cyclictest0-21swapper/1200:21:574
82234899310,30cyclictest0-21swapper/1200:12:514
82234499310,30cyclictest0-21swapper/1123:23:303
82234499310,30cyclictest0-21swapper/1121:20:173
822339993128,3cyclictest2395797-21snmpd20:36:582
82233299310,30cyclictest0-21swapper/822:02:0614
822327993130,1cyclictest1022460-21kworker/u32:3+flush-259:023:30:1711
822325993130,1cyclictest842381-21kworker/4:1+events19:52:4910
822325993130,1cyclictest1037905-21kworker/4:2+events23:57:4310
822325993130,1cyclictest1037905-21kworker/4:2+events00:11:4910
822325993129,2cyclictest2395797-21snmpd20:55:2710
822325993129,1cyclictest979645-21kworker/4:2+events22:17:5110
822325993129,1cyclictest979645-21kworker/4:2+events22:17:5110
822325993129,1cyclictest950527-21kworker/4:1+events21:59:0510
822325993129,1cyclictest879822-21kworker/4:0+events20:41:2910
822325993129,1cyclictest879822-21kworker/4:0+events20:35:3710
822325993129,1cyclictest842381-21kworker/4:1+events20:03:3710
822325993129,1cyclictest774585-21kworker/4:0+events19:22:1410
822325993129,1cyclictest774585-21kworker/4:0+events19:22:1410
822325993129,1cyclictest1037905-21kworker/4:2+events23:43:3310
822325993129,1cyclictest1037905-21kworker/4:2+events00:29:5110
822325993129,1cyclictest1037905-21kworker/4:2+events00:07:0110
822325993129,1cyclictest1037905-21kworker/4:2+events00:00:5910
82232099310,30cyclictest0-21swapper/323:24:059
822317993130,1cyclictest2395797-21snmpd20:51:548
822311993130,1cyclictest2395797-21snmpd20:07:500
822311993130,1cyclictest2395797-21snmpd00:02:190
822358993029,1cyclictest0-21swapper/1500:00:437
82235899300,29cyclictest0-21swapper/1522:35:177
82235599300,1cyclictest0-21swapper/1422:43:496
822353993029,1cyclictest2395797-21snmpd21:07:165
82235399300,30cyclictest0-21swapper/1323:04:105
82235399300,29cyclictest0-21swapper/1322:19:045
82235399300,29cyclictest0-21swapper/1322:19:035
82235399300,29cyclictest0-21swapper/1319:42:075
82235399300,1cyclictest0-21swapper/1320:56:035
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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