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2026-09-13 - 07:18
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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 rackdslot3.osadl.org (updated Sun Sep 13, 2026 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491234168,23phc2sys0-21swapper/319:08:473
327252205172,22sleep20-21swapper/219:06:352
327192203170,22sleep10-21swapper/119:06:301
3232203170,22sleep00-21swapper/019:07:220
1018996332,7cyclictest25-21ksoftirqd/121:50:001
1018996125,10cyclictest25-21ksoftirqd/120:05:021
1018995830,7cyclictest25-21ksoftirqd/120:45:011
1018995830,4cyclictest25-21ksoftirqd/119:40:001
1018995826,3cyclictest25-21ksoftirqd/122:15:161
1018995526,4cyclictest25-21ksoftirqd/120:15:171
1018995526,4cyclictest25-21ksoftirqd/120:15:171
1018995325,8cyclictest25-21ksoftirqd/100:00:201
1018995325,8cyclictest25-21ksoftirqd/100:00:191
1018995324,7cyclictest25-21ksoftirqd/121:15:271
313952520,2sleep20-21swapper/222:25:212
1018995219,4cyclictest25-21ksoftirqd/122:10:171
1018995218,4cyclictest25-21ksoftirqd/120:30:201
1018995213,9cyclictest25-21ksoftirqd/120:05:241
1018995212,10cyclictest25-21ksoftirqd/123:25:171
97092510,2sleep20-21swapper/222:49:592
35472510,3sleep1231rcuc/121:30:001
139391510,1ptp4l401ktimersoftd/322:02:373
1018995123,7cyclictest25-21ksoftirqd/100:30:201
1018995123,7cyclictest25-21ksoftirqd/100:30:201
1018995122,3cyclictest25-21ksoftirqd/123:35:171
1018995121,3cyclictest25-21ksoftirqd/122:20:261
1018995116,5cyclictest25-21ksoftirqd/100:35:151
1018995116,4cyclictest25-21ksoftirqd/120:55:171
1018995116,4cyclictest25-21ksoftirqd/120:55:171
1018995115,7cyclictest25-21ksoftirqd/122:50:001
22262500,1sleep00-21swapper/021:25:170
1018995024,4cyclictest25-21ksoftirqd/123:10:261
1018995018,3cyclictest25-21ksoftirqd/123:05:141
1018995017,7cyclictest25-21ksoftirqd/121:05:141
1018995010,7cyclictest25-21ksoftirqd/121:40:241
1018995010,7cyclictest25-21ksoftirqd/119:15:261
1018995010,7cyclictest25-21ksoftirqd/119:10:241
1018994920,4cyclictest25-21ksoftirqd/122:42:201
1018994919,4cyclictest25-21ksoftirqd/123:20:171
1018994916,4cyclictest25-21ksoftirqd/119:35:001
1018994910,8cyclictest25-21ksoftirqd/122:05:011
1018994910,7cyclictest25-21ksoftirqd/121:30:271
1018994825,6cyclictest25-21ksoftirqd/119:45:251
1018994821,7cyclictest25-21ksoftirqd/120:25:161
1018994819,4cyclictest25-21ksoftirqd/123:43:381
1018994819,4cyclictest25-21ksoftirqd/122:33:201
1018994818,4cyclictest25-21ksoftirqd/123:54:091
1018994818,4cyclictest25-21ksoftirqd/120:37:531
1018994817,4cyclictest25-21ksoftirqd/100:25:001
1018994817,3cyclictest25-21ksoftirqd/119:55:221
1018994815,8cyclictest25-21ksoftirqd/122:50:191
1018994815,4cyclictest25-21ksoftirqd/123:45:261
1018994812,5cyclictest25-21ksoftirqd/123:15:281
1018994810,7cyclictest25-21ksoftirqd/121:35:251
1018994720,7cyclictest25-21ksoftirqd/123:55:161
1018994717,5cyclictest25-21ksoftirqd/121:00:211
1018994716,10cyclictest25-21ksoftirqd/100:05:161
1018994715,4cyclictest25-21ksoftirqd/123:00:231
1018994715,3cyclictest25-21ksoftirqd/120:10:251
1018994713,7cyclictest25-21ksoftirqd/119:25:211
101899462,3cyclictest25-21ksoftirqd/119:20:271
1018994616,4cyclictest25-21ksoftirqd/123:32:511
1018994616,4cyclictest25-21ksoftirqd/123:32:501
1018994616,4cyclictest25-21ksoftirqd/119:52:541
1018994615,6cyclictest25-21ksoftirqd/100:15:301
1018994614,8cyclictest25-21ksoftirqd/121:50:271
1018994613,8cyclictest25-21ksoftirqd/121:55:191
1018994612,7cyclictest25-21ksoftirqd/120:45:151
101899459,4cyclictest25-21ksoftirqd/120:50:251
101899456,4cyclictest25-21ksoftirqd/122:25:251
1018994514,7cyclictest25-21ksoftirqd/120:20:251
1018994415,8cyclictest25-21ksoftirqd/100:25:221
1018994413,9cyclictest25-21ksoftirqd/121:20:281
139391430,0ptp4l401ktimersoftd/321:47:083
101899433,3cyclictest121rcu_preempt22:35:231
139391420,0ptp4l401ktimersoftd/321:15:163
139391410,1ptp4l401ktimersoftd/320:50:593
139391410,0ptp4l401ktimersoftd/321:08:263
139391410,0ptp4l401ktimersoftd/300:25:143
101899410,3cyclictest25-21ksoftirqd/121:15:011
101899404,3cyclictest121rcu_preempt22:55:171
1020993932,5cyclictest41-21ksoftirqd/321:40:003
1019993934,3cyclictest33-21ksoftirqd/222:20:002
101899394,3cyclictest121rcu_preempt19:40:141
101899391,4cyclictest121rcu_preempt22:00:131
1019993834,2cyclictest33-21ksoftirqd/219:40:012
101899380,3cyclictest121rcu_preempt00:10:191
1017993732,3cyclictest156292sleep000:09:250
139391360,1ptp4l401ktimersoftd/300:12:083
139391360,0ptp4l401ktimersoftd/321:30:213
1019993631,3cyclictest33-21ksoftirqd/221:30:172
1019993631,3cyclictest33-21ksoftirqd/219:15:002
1019993631,3cyclictest33-21ksoftirqd/200:29:592
1019993631,3cyclictest13969-21idleruntime-cro20:45:012
1019993630,4cyclictest33-21ksoftirqd/221:54:592
1019993630,4cyclictest33-21ksoftirqd/200:33:102
1019993630,4cyclictest33-21ksoftirqd/200:33:102
1017993632,2cyclictest9-21ksoftirqd/021:40:000
1017993631,3cyclictest9-21ksoftirqd/023:25:000
1017993631,3cyclictest9-21ksoftirqd/022:15:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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