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2026-03-09 - 21:20
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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 50 highest latencies:
System rackbslot6.osadl.org (updated Mon Mar 09, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1015421630,6sleep10-21swapper/107:53:411
1068911040,4ptp4l401ktimersoftd/307:57:033
106891720,1ptp4l401ktimersoftd/311:11:163
105452665,10sleep00-21swapper/007:57:240
10741996557,5cyclictest41-21ksoftirqd/311:53:273
106891590,1ptp4l401ktimersoftd/313:23:473
106891570,1ptp4l401ktimersoftd/313:11:083
106891570,1ptp4l401ktimersoftd/313:11:083
106891570,1ptp4l401ktimersoftd/312:57:413
110802560,1sleep00-21swapper/011:08:540
203482550,2sleep20-21swapper/210:46:272
10741995548,4cyclictest41-21ksoftirqd/313:03:293
10741995548,4cyclictest41-21ksoftirqd/313:03:293
106891550,1ptp4l401ktimersoftd/309:58:543
77952540,2sleep20-21swapper/211:06:432
10741995345,4cyclictest41-21ksoftirqd/312:18:293
10741995343,4cyclictest41-21ksoftirqd/308:18:223
10731995144,4cyclictest10738-21latency_hist07:58:102
143291480,2getstats0-21swapper/312:15:133
106891480,1ptp4l401ktimersoftd/310:48:213
10741994637,5cyclictest41-21ksoftirqd/311:13:263
10741994637,5cyclictest41-21ksoftirqd/311:13:263
1072699469,3cyclictest1055-21runrttasks08:58:011
10741994534,6cyclictest41-21ksoftirqd/309:13:233
10741994533,7cyclictest41-21ksoftirqd/312:33:293
10741994434,5cyclictest41-21ksoftirqd/309:18:213
10741994412,3cyclictest41-21ksoftirqd/310:13:423
1072699443,9cyclictest31691-21apt-get10:58:271
106891440,1ptp4l401ktimersoftd/308:48:053
10741994332,5cyclictest41-21ksoftirqd/308:58:253
10741994232,6cyclictest41-21ksoftirqd/309:33:243
10741994232,6cyclictest41-21ksoftirqd/308:13:223
10741994231,6cyclictest41-21ksoftirqd/309:23:243
1072699420,5cyclictest7354-21sshd10:33:291
10741994131,5cyclictest41-21ksoftirqd/308:48:253
10741994130,6cyclictest41-21ksoftirqd/308:38:223
10741994014,3cyclictest41-21ksoftirqd/311:48:453
106891400,1ptp4l401ktimersoftd/312:28:043
10741993929,5cyclictest41-21ksoftirqd/313:18:293
1072699392,31cyclictest9145-21ssh11:08:271
10719993931,4cyclictest9-21ksoftirqd/009:48:240
10719993928,5cyclictest9-21ksoftirqd/010:58:270
106891390,1ptp4l401ktimersoftd/310:55:563
106891390,1ptp4l401ktimersoftd/310:33:283
106891390,1ptp4l401ktimersoftd/310:32:333
106891380,1ptp4l401ktimersoftd/312:49:483
106891380,1ptp4l401ktimersoftd/312:30:143
106891380,1ptp4l401ktimersoftd/312:06:563
106891380,1ptp4l401ktimersoftd/312:00:463
106891380,1ptp4l401ktimersoftd/311:01:503
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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