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2025-12-04 - 21:55

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6s.osadl.org (updated Thu Dec 04, 2025 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
625921630,3sleep11287699cyclictest12:11:581
12805211797,15sleep00-21swapper/007:09:280
12753211796,16sleep20-21swapper/207:08:512
12625211497,12sleep30-21swapper/307:07:113
12608211193,12sleep10-21swapper/107:06:581
122262740,0sleep00-21swapper/012:19:060
7792730,0sleep30-21swapper/310:22:423
299902700,1sleep329993-21turbostat.cron10:20:003
60192670,0sleep20-21swapper/211:37:162
219252250,2sleep021927-21switchtime09:35:290
318572220,0sleep00-21swapper/010:55:290
1287899210,13cyclictest0-21swapper/312:05:123
12876992118,2cyclictest0-21swapper/112:00:121
12876992118,2cyclictest0-21swapper/112:00:121
12878991914,3cyclictest7011-21ssh09:55:133
12877991916,2cyclictest14173-21kworker/u8:111:22:012
12877991815,2cyclictest20617-21kworker/u8:212:37:052
153092170,0sleep10-21swapper/110:38:231
12877991714,2cyclictest8382-21kworker/u8:012:16:052
12875991714,2cyclictest18086-21kworker/u8:110:18:040
1287899161,13cyclictest0-21swapper/311:06:413
1287899161,13cyclictest0-21swapper/311:00:133
12877991613,2cyclictest21499-21kworker/u8:009:13:042
1287799161,13cyclictest11886-21gdbus10:35:052
1287699160,14cyclictest332250irq/24-eth111:44:481
12875991613,2cyclictest9203-21kworker/u8:211:07:040
49482150,0sleep00-21swapper/011:35:410
1287899152,6cyclictest0-21swapper/308:45:003
1287899152,11cyclictest0-21swapper/312:32:383
1287899151,12cyclictest21000-21df09:35:163
1287899151,11cyclictest0-21swapper/309:46:573
12878991510,3cyclictest0-21swapper/311:16:083
1287899150,13cyclictest22549-21ntp_kernel_err11:20:203
1287899150,13cyclictest0-21swapper/310:40:393
1287799151,3cyclictest0-21swapper/211:54:442
1287799151,3cyclictest0-21swapper/211:54:442
12877991512,2cyclictest28741-21kworker/u8:210:31:042
1287799151,12cyclictest675-21ssh11:31:262
1287799151,12cyclictest25192-40update-apt-xapi07:40:072
1287799150,2cyclictest0-21swapper/211:45:472
1287799150,13cyclictest9543-21ssh09:57:042
1287799150,13cyclictest0-21swapper/212:00:552
1287799150,13cyclictest0-21swapper/212:00:552
1287799150,13cyclictest0-21swapper/208:45:182
1287699150,2cyclictest0-21swapper/112:20:181
1287699150,13cyclictest0-21swapper/109:18:381
12875991512,2cyclictest16909-21kworker/u8:211:50:060
12875991512,2cyclictest16909-21kworker/u8:211:50:050
12875991512,2cyclictest10561-21kworker/u8:210:00:050
1287599150,3cyclictest1481-21ssh09:49:230
1287899140,2cyclictest0-21swapper/312:10:153
1287899140,2cyclictest0-21swapper/311:49:113
1287899140,13cyclictest0-21swapper/311:25:143
1287899140,12cyclictest0-21swapper/311:35:343
12877991411,2cyclictest2644-21kworker/u8:112:22:052
12877991411,2cyclictest18086-21kworker/u8:110:14:062
12877991411,2cyclictest0-21swapper/211:10:582
12877991411,2cyclictest0-21swapper/209:25:172
1287799140,3cyclictest883-21sh12:06:042
1287799140,3cyclictest0-21swapper/212:34:452
1287799140,2cyclictest9199-21ssh11:40:252
1287799140,2cyclictest0-21swapper/210:54:072
1287799140,2cyclictest0-21swapper/210:40:272
1287799140,2cyclictest0-21swapper/209:24:472
1287799140,13cyclictest0-21swapper/212:25:472
1287799140,13cyclictest0-21swapper/210:18:042
1287799140,13cyclictest0-21swapper/209:54:572
1287799140,12cyclictest29247-21diskmemload10:22:362
1287799140,12cyclictest29247-21diskmemload09:39:212
1287799140,12cyclictest13089-21apt-get07:10:102
1287799140,12cyclictest0-21swapper/210:01:322
12876991411,2cyclictest29247-21diskmemload11:59:291
12876991411,2cyclictest29247-21diskmemload11:59:281
12876991411,2cyclictest2766-21apt-get11:00:131
12876991411,2cyclictest0-21swapper/112:39:281
12876991411,2cyclictest0-21swapper/110:29:581
12876991410,2cyclictest0-21swapper/111:40:001
12876991410,2cyclictest0-21swapper/110:20:161
1287699140,13cyclictest0-21swapper/111:15:181
1287699140,12cyclictest20042-21ntpq07:25:181
1287699140,12cyclictest12221-21ntp_states08:25:171
1287699140,12cyclictest0-21swapper/109:40:061
1287699140,12cyclictest0-21swapper/109:38:001
12875991411,2cyclictest29502-21kworker/u8:008:20:060
12875991411,2cyclictest29247-21diskmemload10:35:150
12875991411,2cyclictest28741-21kworker/u8:210:32:040
12875991411,2cyclictest1383-21kworker/u8:211:34:040
12875991411,2cyclictest10561-21kworker/u8:210:08:050
1287599140,13cyclictest7623-1kworker/u9:011:41:160
1287599140,13cyclictest0-21swapper/011:14:040
1287599140,12cyclictest29247-21diskmemload10:10:430
1287599140,12cyclictest21688-21cpuspeed_turbos08:50:140
1287599140,12cyclictest0-21swapper/012:39:570
1287599140,12cyclictest0-21swapper/012:30:160
1287599140,12cyclictest0-21swapper/012:25:370
1287599140,12cyclictest0-21swapper/012:21:550
1287599140,12cyclictest0-21swapper/012:04:000
1287599140,12cyclictest0-21swapper/012:03:590
1287599140,12cyclictest0-21swapper/011:28:480
1287599140,12cyclictest0-21swapper/009:50:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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