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2025-12-18 - 14:16
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rackdslot4.osadl.org (updated Thu Dec 18, 2025 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
156142205171,22sleep20-21swapper/219:07:312
155812204171,22sleep10-21swapper/119:07:071
138591204170,23phc2sys0-21swapper/319:07:003
155802195161,22sleep00-21swapper/019:07:050
1385918262,11phc2sys0-21swapper/319:10:013
224492720,10sleep11609699cyclictest22:35:261
219112670,5sleep01609599cyclictest23:40:200
79472610,3sleep20-21swapper/221:00:282
138491580,1ptp4l401ktimersoftd/320:15:253
138491570,1ptp4l401ktimersoftd/300:38:253
138491550,1ptp4l401ktimersoftd/321:15:473
84732510,1sleep10-21swapper/123:15:141
77222500,2sleep20-21swapper/222:05:262
258892490,2sleep00-21swapper/023:50:110
134991460,7getstats1609899cyclictest22:00:193
10002450,3sleep00-21swapper/019:45:000
16097994430,12cyclictest33-21ksoftirqd/222:40:102
16098994227,12cyclictest41-21ksoftirqd/321:40:003
16098994129,9cyclictest41-21ksoftirqd/319:15:123
16098994034,3cyclictest41-21ksoftirqd/319:35:003
16098994022,16cyclictest41-21ksoftirqd/300:20:003
16098993934,3cyclictest41-21ksoftirqd/321:25:003
50798380,5rtkit-daemon11972-21irqstats22:15:181
50798380,1rtkit-daemon0-21swapper/122:13:381
16098993834,2cyclictest41-21ksoftirqd/322:55:003
16098993834,2cyclictest41-21ksoftirqd/321:35:013
16098993827,9cyclictest41-21ksoftirqd/321:50:253
16098993827,10cyclictest41-21ksoftirqd/322:40:243
16097993830,6cyclictest33-21ksoftirqd/221:23:102
16098993733,2cyclictest41-21ksoftirqd/321:40:173
16098993733,2cyclictest41-21ksoftirqd/319:40:013
16098993732,3cyclictest41-21ksoftirqd/322:30:013
16098993730,5cyclictest41-21ksoftirqd/322:30:003
16098993730,3cyclictest41-21ksoftirqd/320:00:153
16098993726,9cyclictest41-21ksoftirqd/320:45:193
16098993725,9cyclictest41-21ksoftirqd/322:20:243
16097993732,3cyclictest33-21ksoftirqd/220:59:342
16097993730,5cyclictest33-21ksoftirqd/223:05:112
16096993732,3cyclictest25-21ksoftirqd/120:15:141
16096993731,4cyclictest25-21ksoftirqd/123:45:431
138491370,0ptp4l401ktimersoftd/323:50:033
138491370,0ptp4l401ktimersoftd/319:45:233
138491370,0ptp4l401ktimersoftd/319:45:223
138491370,0ptp4l401ktimersoftd/300:30:133
1609899365,4cyclictest41-21ksoftirqd/300:25:163
16098993632,3cyclictest41-21ksoftirqd/321:15:003
16098993632,3cyclictest41-21ksoftirqd/321:10:003
16098993630,4cyclictest41-21ksoftirqd/323:09:023
16098993630,4cyclictest41-21ksoftirqd/322:14:263
16098993630,4cyclictest41-21ksoftirqd/320:39:143
16097993630,4cyclictest33-21ksoftirqd/222:00:372
16096993630,4cyclictest25-21ksoftirqd/121:55:311
16096993630,4cyclictest25-21ksoftirqd/120:26:131
16095993630,4cyclictest9-21ksoftirqd/020:02:500
16095993630,4cyclictest9-21ksoftirqd/000:21:040
16098993531,2cyclictest41-21ksoftirqd/323:15:003
16098993530,3cyclictest41-21ksoftirqd/323:30:553
16098993530,3cyclictest41-21ksoftirqd/323:16:163
16098993530,3cyclictest41-21ksoftirqd/322:58:553
16098993530,3cyclictest41-21ksoftirqd/321:25:183
16098993530,3cyclictest41-21ksoftirqd/320:55:183
16098993530,3cyclictest41-21ksoftirqd/319:50:133
16098993529,3cyclictest41-21ksoftirqd/319:20:183
16097993529,4cyclictest33-21ksoftirqd/222:22:512
16097993529,4cyclictest33-21ksoftirqd/220:11:332
16097993513,19cyclictest33-21ksoftirqd/220:02:082
16096993529,4cyclictest25-21ksoftirqd/121:21:491
16095993529,4cyclictest9-21ksoftirqd/022:30:410
16095993529,4cyclictest9-21ksoftirqd/020:51:430
16095993529,4cyclictest9-21ksoftirqd/020:09:550
16095993529,4cyclictest9-21ksoftirqd/019:31:570
16098993430,3cyclictest41-21ksoftirqd/323:40:003
16098993430,2cyclictest41-21ksoftirqd/322:35:273
16098993429,3cyclictest41-21ksoftirqd/322:15:123
16098993429,3cyclictest41-21ksoftirqd/321:45:103
16098993429,3cyclictest41-21ksoftirqd/320:44:593
16098993429,3cyclictest41-21ksoftirqd/320:10:173
16098993429,3cyclictest41-21ksoftirqd/300:10:193
16098993429,3cyclictest41-21ksoftirqd/300:00:133
16098993428,4cyclictest41-21ksoftirqd/323:24:513
16098993428,4cyclictest41-21ksoftirqd/321:03:173
16098993428,4cyclictest41-21ksoftirqd/320:27:393
16098993428,4cyclictest41-21ksoftirqd/319:56:303
16098993428,4cyclictest41-21ksoftirqd/300:22:553
1609899341,3cyclictest121rcu_preempt20:07:173
16097993429,3cyclictest33-21ksoftirqd/221:25:242
16097993429,3cyclictest33-21ksoftirqd/219:31:312
16097993429,3cyclictest33-21ksoftirqd/219:10:072
16097993428,4cyclictest33-21ksoftirqd/223:37:452
16097993428,4cyclictest33-21ksoftirqd/223:15:112
16097993428,4cyclictest33-21ksoftirqd/222:34:152
16097993428,4cyclictest33-21ksoftirqd/222:16:142
16097993428,4cyclictest33-21ksoftirqd/221:41:442
16097993428,4cyclictest33-21ksoftirqd/220:42:582
16097993428,4cyclictest33-21ksoftirqd/200:03:492
16097993426,6cyclictest33-21ksoftirqd/223:24:552
16096993428,4cyclictest25-21ksoftirqd/123:33:581
16096993428,4cyclictest25-21ksoftirqd/121:00:361
16096993428,4cyclictest25-21ksoftirqd/120:31:061
16096993428,4cyclictest25-21ksoftirqd/120:22:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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