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2026-05-19 - 21:34
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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 Tue May 19, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1917321400,6sleep00-21swapper/008:32:510
1068911010,3ptp4l401ktimersoftd/308:34:273
190632680,2sleep00-21swapper/011:47:330
106891660,2ptp4l401ktimersoftd/312:16:023
106891660,1ptp4l401ktimersoftd/312:27:593
148282650,2sleep10-21swapper/112:15:081
286322590,4sleep02008599cyclictest11:23:040
199722554,10sleep20-21swapper/208:37:262
189742550,2sleep20-21swapper/209:37:592
184412550,2sleep00-21swapper/012:51:450
106891550,1ptp4l401ktimersoftd/311:50:253
2009099486,17cyclictest16343-21cat11:12:321
199372446,10sleep10-21swapper/108:37:011
327352420,1sleep10-21swapper/113:04:591
2009099424,17cyclictest3077-21snmp_o5powerctl10:57:571
2009099424,17cyclictest3077-21snmp_o5powerctl10:57:571
106891410,1ptp4l401ktimersoftd/309:27:533
2009099405,9cyclictest8230-21snmp_o5powerctl12:07:591
106891400,1ptp4l401ktimersoftd/313:47:513
2009099395,8cyclictest3250-21snmp_o5powerctl12:03:001
106891390,1ptp4l401ktimersoftd/314:05:353
106891390,1ptp4l401ktimersoftd/311:20:113
106891390,1ptp4l401ktimersoftd/311:10:293
106891380,1ptp4l401ktimersoftd/313:44:453
106891380,1ptp4l401ktimersoftd/313:40:393
106891380,1ptp4l401ktimersoftd/312:26:533
106891380,1ptp4l401ktimersoftd/312:11:303
106891380,1ptp4l401ktimersoftd/312:02:253
106891380,1ptp4l401ktimersoftd/311:03:113
106891380,1ptp4l401ktimersoftd/311:00:233
106891380,1ptp4l401ktimersoftd/311:00:233
106891380,1ptp4l401ktimersoftd/310:47:303
2009099375,9cyclictest6194-21snmp_o5powerctl13:43:021
2009099374,8cyclictest22300-21ssh11:49:591
106891370,2ptp4l25333-21kworker/3:012:39:113
106891370,1ptp4l401ktimersoftd/313:10:413
106891370,1ptp4l401ktimersoftd/313:05:043
106891370,1ptp4l401ktimersoftd/313:02:153
106891370,1ptp4l401ktimersoftd/312:53:183
106891370,1ptp4l401ktimersoftd/312:18:373
106891370,1ptp4l401ktimersoftd/312:05:133
106891370,1ptp4l401ktimersoftd/311:43:063
106891370,1ptp4l401ktimersoftd/311:39:153
106891370,1ptp4l401ktimersoftd/311:36:193
106891370,1ptp4l401ktimersoftd/311:24:153
106891370,1ptp4l401ktimersoftd/310:42:173
2009099364,8cyclictest8463-21apt-get10:27:321
106891360,1ptp4l401ktimersoftd/313:53:163
106891360,1ptp4l401ktimersoftd/313:36:213
106891360,1ptp4l401ktimersoftd/313:28:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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