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2025-12-28 - 11:30
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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 Sun Dec 28, 2025 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
237022930,3sleep30-21swapper/319:13:543
3112521490,3sleep3401999cyclictest23:46:163
28352704,11sleep20-21swapper/219:13:582
106891700,1ptp4l401ktimersoftd/322:02:383
108942660,1sleep00-21swapper/000:36:510
159032610,4sleep3391rcuc/300:43:083
315662600,1sleep30-21swapper/321:56:593
106891560,1ptp4l401ktimersoftd/300:06:553
74042530,2sleep27407-21rm23:56:022
48662520,2sleep10-21swapper/119:18:521
38522524,37sleep00-21swapper/019:17:550
263412520,2sleep30-21swapper/323:40:543
75552480,3sleep10-21swapper/123:19:041
106891470,14ptp4l25436-21kworker/3:100:28:483
106891460,13ptp4l27847-21kworker/3:223:37:093
106891390,1ptp4l401ktimersoftd/321:53:353
106891390,1ptp4l401ktimersoftd/319:58:573
106891390,1ptp4l401ktimersoftd/300:48:193
4009993830,5cyclictest21581-21ssh22:22:551
106891380,1ptp4l401ktimersoftd/323:00:153
106891380,1ptp4l401ktimersoftd/322:08:543
106891380,1ptp4l401ktimersoftd/322:08:543
106891380,1ptp4l401ktimersoftd/321:48:113
106891380,1ptp4l401ktimersoftd/300:26:093
106891370,1ptp4l401ktimersoftd/323:28:553
106891370,1ptp4l401ktimersoftd/323:16:383
106891370,1ptp4l401ktimersoftd/323:06:283
106891370,1ptp4l401ktimersoftd/322:46:083
106891370,1ptp4l401ktimersoftd/300:22:073
106891370,1ptp4l401ktimersoftd/300:10:363
401999363,7cyclictest10475-21apt-get23:23:513
106891360,1ptp4l401ktimersoftd/323:57:433
106891360,1ptp4l401ktimersoftd/323:48:393
106891360,1ptp4l401ktimersoftd/322:54:403
106891360,1ptp4l401ktimersoftd/322:41:053
106891360,1ptp4l401ktimersoftd/322:32:563
106891360,1ptp4l401ktimersoftd/322:19:303
106891360,1ptp4l401ktimersoftd/322:07:253
106891360,1ptp4l401ktimersoftd/321:34:263
106891360,0ptp4l401ktimersoftd/322:49:573
106891360,0ptp4l401ktimersoftd/319:35:453
401999359,3cyclictest31348-21cat23:09:053
4019993517,15cyclictest41-21ksoftirqd/320:15:223
27362353,18sleep11774-21/usr/sbin/munin19:13:571
106891350,1ptp4l401ktimersoftd/322:27:063
106891350,1ptp4l401ktimersoftd/321:21:023
401999343,5cyclictest6163-21apt-get21:28:503
106891340,0ptp4l401ktimersoftd/322:18:223
106891340,0ptp4l401ktimersoftd/322:18:223
401999333,6cyclictest944-21apt-get20:18:473
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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