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2025-12-15 - 23:14

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, slot #7

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.

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 792 highest latencies:
System rack2slot7s.osadl.org (updated Mon Dec 15, 2025 07:55:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1907607995625,24cyclictest2789291-21sh06:12:440
1907607995625,24cyclictest2789291-21sh06:12:440
1907607995447,4cyclictest2707517-21tee06:09:290
1907607995447,4cyclictest2707517-21tee06:09:290
1907607995231,19cyclictest2800144-21systemd-run06:30:010
1907607995230,19cyclictest2194491-21sh05:42:430
1907609994940,6cyclictest2710156-21sh06:09:352
1907609994940,6cyclictest2710156-21sh06:09:352
1907609994939,6cyclictest2787630-21sh06:12:412
1907609994939,6cyclictest2787630-21sh06:12:412
1907609994939,6cyclictest2166654-21sh05:41:342
1907608994940,5cyclictest2194765-21sh05:42:441
1907608994937,9cyclictest2067364-21spawn05:34:461
1907607994924,22cyclictest2381644-21spawn06:03:270
1907609994638,5cyclictest2797129-21munin-plugin-st06:20:002
1907608994638,5cyclictest2736498-21sh06:10:401
1907608994638,5cyclictest2736498-21sh06:10:401
1907608994638,5cyclictest2642935-21sh06:07:001
1907608994638,5cyclictest2642935-21sh06:07:001
1907609994536,6cyclictest2632645-21Run06:04:412
1907609994532,8cyclictest2060225-21spawn05:34:412
190760799442,36cyclictest2801090-21ntpq06:34:400
1907609994334,6cyclictest2129246-21sh05:39:422
1907608994332,6cyclictest563-21avahi-daemon05:39:411
190760799433,34cyclictest2802487-21ntpq06:39:390
1907607994134,4cyclictest2041285-21spawn05:34:410
1907609994031,5cyclictest0-21swapper/205:50:412
1907608994033,4cyclictest1885532-21kworker/u8:3-xprtiod05:20:011
1907607994032,6cyclictest2133576-21sh05:40:010
1907607994013,24cyclictest0-21swapper/005:50:550
1907609993930,6cyclictest1909084-21latency_hist05:10:022
190760799392,33cyclictest2798075-21ntpq06:24:420
190760799391,4cyclictest1914738-21ntpq05:29:410
190760799390,36cyclictest2796587-21ntpq06:19:400
190760799382,33cyclictest1909923-21ntpq05:14:380
190760799381,4cyclictest1908498-21ntpq05:09:400
190760899376,19cyclictest577-21mta-sts-daemon06:29:131
1907608993729,5cyclictest2217734-21cron05:55:001
1907608993729,5cyclictest0-21swapper/106:04:101
1907608993729,4cyclictest2216147-21execl05:49:351
1907608993729,4cyclictest2216147-21execl05:49:351
1907607993720,14cyclictest0-21swapper/005:49:350
1907607993720,14cyclictest0-21swapper/005:49:350
1907608993625,7cyclictest2797131-21munin-plugin-st06:20:001
190761099355,14cyclictest0-21swapper/305:57:013
190760799352,29cyclictest1913187-21ntpq05:24:390
190760799351,5cyclictest2218047-21fstime05:57:490
1907609993424,7cyclictest2216150-21execl05:50:022
1907609993424,7cyclictest2216150-21execl05:50:022
1907608993425,6cyclictest2798619-21cut06:25:011
1907608993424,7cyclictest674-21gdbus06:34:421
190760799341,30cyclictest1910834-21sh05:15:570
190760799341,2cyclictest0-21swapper/005:05:010
1907609993318,5cyclictest1782567-21cupsd05:12:102
1907609993225,4cyclictest1912200-21whetstone-doubl05:20:012
190760999321,25cyclictest2218676-21pipe05:59:352
1907608993227,2cyclictest0-21swapper/105:59:291
1907608993123,5cyclictest1782581-21cups-browsed06:35:381
1907609993022,5cyclictest2798606-21run-parts06:25:012
1907609992922,5cyclictest351ktimers/206:34:402
190760999290,26cyclictest1914789-21pipe05:29:432
1907609992815,6cyclictest171rcu_preempt05:20:512
1907609992718,7cyclictest2800116-21vmstat06:29:502
1907608992719,6cyclictest563-21avahi-daemon05:21:101
1907608992618,5cyclictest582-21systemd-logind05:05:021
190760999255,8cyclictest351ktimers/206:39:332
1907608992519,3cyclictest0-21swapper/105:29:431
190761099243,14cyclictest0-21swapper/306:09:453
190761099243,14cyclictest0-21swapper/306:09:453
1907608992416,5cyclictest1165-21mta-sts-daemon05:09:471
190761099232,12cyclictest0-21swapper/305:43:433
1907608992318,2cyclictest0-21swapper/105:14:391
190761099224,12cyclictest0-21swapper/305:39:413
1907609992217,2cyclictest0-21swapper/205:05:022
190761099212,11cyclictest0-21swapper/305:50:023
190761099212,11cyclictest0-21swapper/305:50:023
190761099204,9cyclictest0-21swapper/305:09:403
190761099204,10cyclictest0-21swapper/306:00:353
190761099203,10cyclictest0-21swapper/306:29:403
190761099194,9cyclictest0-21swapper/305:50:363
190761099194,9cyclictest0-21swapper/305:34:393
190761099183,8cyclictest0-21swapper/306:20:003
190761099182,9cyclictest0-21swapper/306:39:383
190761099174,10cyclictest0-21swapper/306:11:403
190761099174,10cyclictest0-21swapper/306:11:403
190761099173,7cyclictest0-21swapper/305:14:373
190761099164,8cyclictest0-21swapper/305:24:383
190761099162,9cyclictest0-21swapper/306:24:413
190761099162,8cyclictest0-21swapper/305:19:393
190761099142,7cyclictest0-21swapper/306:34:363
190761099142,7cyclictest0-21swapper/305:26:453
190761099101,6cyclictest0-21swapper/305:05:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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