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2026-05-26 - 07:53
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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 Tue May 26, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591224162,50phc2sys0-21swapper/319:09:403
99572202169,22sleep20-21swapper/219:07:272
100472202169,22sleep00-21swapper/019:08:380
98662201170,21sleep10-21swapper/119:06:221
1787121520,5sleep31044699cyclictest19:25:123
138491700,1ptp4l391rcuc/321:24:403
60072590,4sleep06012-21irqrtprio23:20:190
138491550,1ptp4l401ktimersoftd/323:54:333
134991480,1getstats0-21swapper/320:05:113
134991480,1getstats0-21swapper/320:05:113
138491460,1ptp4l401ktimersoftd/322:54:073
10446994538,4cyclictest24927-21ls00:00:013
10445994539,3cyclictest22558-21ls19:34:592
138491440,1ptp4l401ktimersoftd/323:47:473
10446994436,4cyclictest41-21ksoftirqd/321:00:003
1044599442,39cyclictest14794-21cron21:30:002
10444994418,25cyclictest2380-21kworker/1:120:03:251
138491430,0ptp4l401ktimersoftd/322:44:163
138491430,0ptp4l401ktimersoftd/300:14:163
10446994335,5cyclictest22524-21cron19:35:003
1044399431,39cyclictest30772-21fschecks_count00:10:130
134991420,5getstats1044699cyclictest21:55:383
10446994136,3cyclictest41-21ksoftirqd/320:45:003
138491390,0ptp4l401ktimersoftd/321:25:203
138491390,0ptp4l401ktimersoftd/300:15:143
10444993911,27cyclictest0-21swapper/121:30:341
10446993831,4cyclictest41-21ksoftirqd/322:00:013
10444993830,5cyclictest25-21ksoftirqd/120:10:011
10444993830,5cyclictest25-21ksoftirqd/120:10:011
1044499380,36cyclictest0-21swapper/120:22:031
10446993732,3cyclictest41-21ksoftirqd/320:15:013
10446993732,3cyclictest41-21ksoftirqd/319:15:013
10446993731,3cyclictest41-21ksoftirqd/319:50:183
10446993731,3cyclictest41-21ksoftirqd/300:05:273
10445993732,3cyclictest33-21ksoftirqd/222:50:002
10445993731,4cyclictest33-21ksoftirqd/223:46:152
10445993730,4cyclictest33-21ksoftirqd/222:02:092
10445993730,4cyclictest33-21ksoftirqd/221:08:222
10444993731,4cyclictest25-21ksoftirqd/121:54:461
10443993729,6cyclictest9-21ksoftirqd/019:35:000
10446993632,2cyclictest41-21ksoftirqd/321:20:003
10446993632,2cyclictest41-21ksoftirqd/300:35:273
10446993631,3cyclictest41-21ksoftirqd/322:59:593
10446993631,3cyclictest41-21ksoftirqd/321:10:233
10446993631,3cyclictest41-21ksoftirqd/319:59:593
10446993630,4cyclictest41-21ksoftirqd/323:12:063
10446993630,3cyclictest41-21ksoftirqd/323:05:263
10446993630,3cyclictest41-21ksoftirqd/322:35:153
10446993630,3cyclictest41-21ksoftirqd/322:15:183
10446993630,3cyclictest41-21ksoftirqd/321:45:003
10446993630,3cyclictest41-21ksoftirqd/320:45:183
10446993630,3cyclictest41-21ksoftirqd/320:24:593
10446993628,5cyclictest41-21ksoftirqd/323:40:313
10446993617,17cyclictest41-21ksoftirqd/300:05:023
10445993630,4cyclictest33-21ksoftirqd/222:35:402
10445993630,4cyclictest33-21ksoftirqd/220:53:262
10445993630,4cyclictest33-21ksoftirqd/219:29:372
10445993629,4cyclictest33-21ksoftirqd/200:19:342
10444993630,4cyclictest25-21ksoftirqd/121:39:411
1044499360,34cyclictest0-21swapper/121:59:041
138491350,0ptp4l401ktimersoftd/321:00:263
10446993530,3cyclictest41-21ksoftirqd/321:44:593
10446993529,4cyclictest41-21ksoftirqd/323:34:333
10446993529,4cyclictest41-21ksoftirqd/322:08:203
10446993529,4cyclictest41-21ksoftirqd/321:52:363
10446993529,4cyclictest41-21ksoftirqd/320:34:133
10446993529,3cyclictest41-21ksoftirqd/323:40:003
10446993529,3cyclictest41-21ksoftirqd/322:25:183
10445993530,3cyclictest33-21ksoftirqd/221:45:122
10445993529,4cyclictest33-21ksoftirqd/223:22:212
10445993529,4cyclictest33-21ksoftirqd/222:51:072
10445993529,4cyclictest33-21ksoftirqd/222:40:082
10445993529,4cyclictest33-21ksoftirqd/222:21:392
10445993529,4cyclictest33-21ksoftirqd/221:44:252
10445993529,4cyclictest33-21ksoftirqd/220:40:342
10445993529,4cyclictest33-21ksoftirqd/219:37:192
10445993529,4cyclictest33-21ksoftirqd/219:16:052
10445993529,3cyclictest33-21ksoftirqd/220:00:282
10444993530,3cyclictest25-21ksoftirqd/123:05:101
10444993529,4cyclictest25-21ksoftirqd/123:29:131
10444993529,4cyclictest25-21ksoftirqd/122:58:161
10444993529,4cyclictest25-21ksoftirqd/121:06:521
10444993529,4cyclictest25-21ksoftirqd/121:01:511
10444993529,4cyclictest25-21ksoftirqd/120:32:191
10444993529,4cyclictest25-21ksoftirqd/120:18:021
10444993529,4cyclictest25-21ksoftirqd/119:33:131
10444993528,4cyclictest25-21ksoftirqd/100:05:041
10443993529,4cyclictest9-21ksoftirqd/023:55:480
10443993529,4cyclictest9-21ksoftirqd/023:50:390
10443993529,4cyclictest9-21ksoftirqd/022:31:160
10443993529,4cyclictest9-21ksoftirqd/020:37:340
10443993529,4cyclictest9-21ksoftirqd/020:08:220
10443993529,4cyclictest9-21ksoftirqd/020:08:220
10446993428,4cyclictest41-21ksoftirqd/319:36:283
10445993429,3cyclictest33-21ksoftirqd/220:15:132
10445993429,3cyclictest33-21ksoftirqd/220:10:112
10445993429,3cyclictest33-21ksoftirqd/219:53:542
10445993428,4cyclictest33-21ksoftirqd/223:13:302
10445993428,4cyclictest33-21ksoftirqd/221:37:232
10445993428,4cyclictest33-21ksoftirqd/220:56:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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