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2026-03-16 - 14:27

OSADL QA Farm on Real-time of Mainline Linux

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

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 100 highest latencies:
System r0s0s.osadl.org (updated Mon Mar 16, 2026 12:46:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18689172291257,26sleep50-21swapper/507:07:585
18690342290271,12sleep60-21swapper/607:09:356
18690032289270,12sleep40-21swapper/407:09:094
18689882288268,12sleep10-21swapper/107:08:581
18687582288269,12sleep70-21swapper/707:05:437
18688412287267,13sleep30-21swapper/307:06:503
18689222286266,13sleep00-21swapper/007:08:000
18688022286266,13sleep20-21swapper/207:06:172
1869543993633,2cyclictest1941898-21kworker/u16:3+events_unbound09:30:296
1869543993532,2cyclictest2028271-21kworker/u16:4+flush-8:012:20:256
1869541993429,5cyclictest449069-21snmpd07:12:394
186954199340,30cyclictest0-21swapper/409:14:514
1869544993330,2cyclictest449069-21snmpd08:59:337
1869544993330,2cyclictest449069-21snmpd07:54:507
1869544993329,3cyclictest449069-21snmpd09:42:257
1869543993330,2cyclictest516654-21ntpd07:44:436
1869543993330,2cyclictest449069-21snmpd10:12:116
1869543993330,2cyclictest449069-21snmpd08:25:326
1869541993330,2cyclictest449069-21snmpd11:30:404
1869541993330,2cyclictest449069-21snmpd07:55:104
186954199330,30cyclictest0-21swapper/409:34:104
1869540993330,2cyclictest449069-21snmpd10:32:153
1869540993330,2cyclictest449069-21snmpd10:08:513
186954099331,31cyclictest1970372-21ntpq10:25:263
186954099330,30cyclictest0-21swapper/310:56:363
1869539993331,2cyclictest1926906-21kworker/u16:2+flush-8:009:10:262
186953799330,30cyclictest0-21swapper/008:40:170
186953799330,30cyclictest0-21swapper/008:29:140
186953799330,12cyclictest14-21ksoftirqd/010:50:160
1869544993230,1cyclictest449069-21snmpd10:50:547
1869544993230,1cyclictest449069-21snmpd09:28:237
1869544993229,2cyclictest449069-21snmpd07:25:137
1869544993229,2cyclictest1906271-21cat08:20:167
186954499320,31cyclictest0-21swapper/710:44:587
186954499320,31cyclictest0-21swapper/710:44:577
186954499320,31cyclictest0-21swapper/710:22:337
1869543993230,1cyclictest449069-21snmpd09:42:526
1869543993229,2cyclictest449069-21snmpd11:56:026
1869543993229,2cyclictest449069-21snmpd11:16:596
1869542993230,2cyclictest449069-21snmpd10:17:325
1869542993230,2cyclictest449069-21snmpd08:30:145
1869541993230,1cyclictest449069-21snmpd10:28:024
1869541993230,1cyclictest449069-21snmpd10:24:414
1869541993230,1cyclictest449069-21snmpd08:58:484
1869541993229,2cyclictest449069-21snmpd11:07:074
1869541993225,2cyclictest449069-21snmpd07:36:544
186954199320,30cyclictest0-21swapper/409:35:134
1869540993230,1cyclictest0-21swapper/310:53:573
1869540993229,2cyclictest449069-21snmpd12:11:353
186954099320,29cyclictest0-21swapper/307:43:373
1869539993230,2cyclictest449069-21snmpd12:23:392
1869539993230,2cyclictest449069-21snmpd08:16:312
1869539993230,1cyclictest449069-21snmpd11:10:042
1869538993230,1cyclictest449069-21snmpd08:05:321
1869538993229,2cyclictest449069-21snmpd12:37:001
1869538993229,2cyclictest449069-21snmpd12:37:001
1869538993229,2cyclictest449069-21snmpd11:55:441
1869538993229,2cyclictest449069-21snmpd11:42:441
1869538993229,2cyclictest449069-21snmpd08:21:561
186953899322,30cyclictest0-21swapper/107:17:011
1869537993230,1cyclictest449069-21snmpd09:38:260
1869537993230,1cyclictest449069-21snmpd09:21:070
1869537993229,2cyclictest449069-21snmpd10:17:060
1869537993229,2cyclictest1969791-21cat10:25:150
1869537993229,2cyclictest1926858-21cat09:00:150
1869537993227,2cyclictest0-21swapper/007:37:040
186953799320,31cyclictest0-21swapper/009:30:580
186953799320,31cyclictest0-21swapper/007:48:520
186953799320,30cyclictest0-21swapper/007:28:490
1869544993130,1cyclictest449069-21snmpd10:49:307
1869544993129,1cyclictest449069-21snmpd11:02:037
1869544993129,1cyclictest0-21swapper/710:36:247
1869544993128,2cyclictest449069-21snmpd11:25:107
1869544993128,2cyclictest449069-21snmpd10:56:107
1869544993128,2cyclictest449069-21snmpd07:55:467
1869544993127,3cyclictest449069-21snmpd09:48:017
186954499310,30cyclictest0-21swapper/712:19:517
186954499310,30cyclictest0-21swapper/709:13:277
186954499310,30cyclictest0-21swapper/709:08:067
186954499310,30cyclictest0-21swapper/708:51:007
186954499310,30cyclictest0-21swapper/708:50:597
186954499310,30cyclictest0-21swapper/708:17:317
186954499310,1cyclictest0-21swapper/711:20:237
186954499310,1cyclictest0-21swapper/707:37:367
1869543993130,1cyclictest449069-21snmpd12:07:566
1869543993130,1cyclictest449069-21snmpd11:38:586
1869543993129,2cyclictest449069-21snmpd11:11:526
1869543993129,2cyclictest449069-21snmpd10:18:266
1869543993129,2cyclictest449069-21snmpd08:18:446
1869543993129,1cyclictest449069-21snmpd12:02:176
1869543993129,1cyclictest449069-21snmpd08:55:186
186954399310,31cyclictest0-21swapper/612:10:156
186954399310,31cyclictest0-21swapper/608:30:146
186954399310,30cyclictest0-21swapper/609:00:126
186954399310,1cyclictest0-21swapper/607:26:306
186954399310,1cyclictest0-21swapper/607:20:146
1869542993130,1cyclictest449069-21snmpd11:41:565
1869542993129,2cyclictest449069-21snmpd11:12:115
1869542993129,2cyclictest449069-21snmpd08:13:205
1869542993129,2cyclictest1883657-21cat07:35:155
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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