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2026-08-07 - 03:19
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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 Thu Aug 06, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491206172,23phc2sys0-21swapper/307:08:153
61692202169,22sleep10-21swapper/107:07:351
60322202168,23sleep20-21swapper/207:05:462
60302202169,22sleep00-21swapper/007:05:440
63682138114,13sleep30-21swapper/307:10:023
6663996226,4cyclictest41-21ksoftirqd/308:40:003
6663996226,4cyclictest41-21ksoftirqd/308:40:003
318712620,4sleep0101ktimersoftd/010:15:230
139391610,0ptp4l391rcuc/308:43:523
6663995716,5cyclictest41-21ksoftirqd/308:50:243
139391540,1ptp4l401ktimersoftd/308:56:173
139391540,0ptp4l401ktimersoftd/307:55:503
139391530,1ptp4l401ktimersoftd/309:19:273
666099523,7cyclictest5502-21ps09:20:230
666099523,7cyclictest5502-21ps09:20:230
6663995023,7cyclictest41-21ksoftirqd/310:45:173
6663995019,7cyclictest41-21ksoftirqd/309:25:003
6663995019,7cyclictest41-21ksoftirqd/309:25:003
6663995019,4cyclictest41-21ksoftirqd/310:55:003
6663995017,4cyclictest41-21ksoftirqd/312:40:003
120632500,4sleep012064-21cut11:50:180
6663994920,7cyclictest41-21ksoftirqd/310:10:133
6663994920,3cyclictest41-21ksoftirqd/309:10:263
6663994919,7cyclictest41-21ksoftirqd/311:05:003
6663994919,4cyclictest41-21ksoftirqd/307:30:133
6663994918,7cyclictest41-21ksoftirqd/307:40:123
666399489,3cyclictest121rcu_preempt11:05:143
6663994817,7cyclictest41-21ksoftirqd/312:20:203
6663994817,3cyclictest41-21ksoftirqd/308:15:243
6663994716,4cyclictest41-21ksoftirqd/308:50:013
6663994714,4cyclictest41-21ksoftirqd/310:55:143
6663994712,3cyclictest41-21ksoftirqd/312:15:113
6663994617,4cyclictest41-21ksoftirqd/310:30:243
6663994615,3cyclictest41-21ksoftirqd/312:00:133
6663994614,4cyclictest41-21ksoftirqd/310:05:143
6663994612,4cyclictest41-21ksoftirqd/308:00:143
6663994611,8cyclictest41-21ksoftirqd/307:45:183
270562460,2sleep20-21swapper/207:50:232
6663994540,3cyclictest41-21ksoftirqd/310:00:003
6663994524,3cyclictest41-21ksoftirqd/309:25:183
6663994516,7cyclictest41-21ksoftirqd/307:15:133
6663994515,3cyclictest41-21ksoftirqd/309:30:253
6663994512,4cyclictest41-21ksoftirqd/311:15:003
666399450,3cyclictest121rcu_preempt10:25:153
666099455,5cyclictest9-21ksoftirqd/012:24:590
666099453,7cyclictest9-21ksoftirqd/010:00:120
666099453,5cyclictest101ktimersoftd/009:55:000
666099451,6cyclictest1086-21sed11:25:250
666099451,5cyclictest9-21ksoftirqd/009:20:000
6660994513,6cyclictest9-21ksoftirqd/011:35:240
666399449,3cyclictest41-21ksoftirqd/308:05:163
666399449,3cyclictest41-21ksoftirqd/308:05:163
6663994417,8cyclictest41-21ksoftirqd/307:20:223
6663994414,4cyclictest41-21ksoftirqd/311:21:243
6663994413,5cyclictest41-21ksoftirqd/310:17:443
6663994413,3cyclictest41-21ksoftirqd/308:25:183
6663994410,4cyclictest41-21ksoftirqd/309:45:143
666099445,6cyclictest9-21ksoftirqd/012:35:130
666099442,39cyclictest30343-21cat10:15:010
666399439,3cyclictest41-21ksoftirqd/311:35:153
666399437,8cyclictest41-21ksoftirqd/309:00:133
6663994316,7cyclictest41-21ksoftirqd/311:44:593
6663994316,7cyclictest41-21ksoftirqd/308:10:273
6663994312,3cyclictest41-21ksoftirqd/310:25:003
6663994311,9cyclictest41-21ksoftirqd/309:05:243
666099432,7cyclictest9-21ksoftirqd/011:08:490
666099432,6cyclictest9-21ksoftirqd/009:49:220
666099431,7cyclictest9-21ksoftirqd/008:10:190
666099430,6cyclictest101ktimersoftd/011:00:000
666399429,9cyclictest41-21ksoftirqd/311:55:003
6663994215,3cyclictest41-21ksoftirqd/309:39:533
6663994213,5cyclictest41-21ksoftirqd/311:50:003
6663994211,8cyclictest41-21ksoftirqd/311:15:143
6662994236,3cyclictest6387-21latency_hist09:25:002
6662994236,3cyclictest6387-21latency_hist09:25:002
666099424,5cyclictest9-21ksoftirqd/009:25:220
666099422,5cyclictest9-21ksoftirqd/009:31:000
666099421,5cyclictest0-21swapper/007:40:160
666399419,7cyclictest41-21ksoftirqd/307:25:143
666399419,10cyclictest41-21ksoftirqd/312:05:143
666399417,11cyclictest41-21ksoftirqd/309:44:283
6663994111,7cyclictest41-21ksoftirqd/311:55:173
666099414,8cyclictest0-21swapper/007:55:180
666099412,6cyclictest9-21ksoftirqd/007:30:210
666399408,9cyclictest41-21ksoftirqd/310:40:253
6663994034,3cyclictest41-21ksoftirqd/310:40:003
6663994025,4cyclictest41-21ksoftirqd/307:35:123
6663994025,4cyclictest41-21ksoftirqd/307:35:123
6663994015,7cyclictest41-21ksoftirqd/311:30:183
666099404,5cyclictest9-21ksoftirqd/008:00:230
666099403,6cyclictest9-21ksoftirqd/007:25:160
666099403,5cyclictest9-21ksoftirqd/011:45:000
666099402,6cyclictest9-21ksoftirqd/008:55:160
666099402,4cyclictest9-21ksoftirqd/009:01:520
666099401,6cyclictest9-21ksoftirqd/010:48:570
666099401,5cyclictest9-21ksoftirqd/008:50:130
666099400,16cyclictest21930-21latency_hist08:50:000
666399395,31cyclictest21760-21irqrtprio12:10:193
6663993910,9cyclictest41-21ksoftirqd/308:30:253
6661993934,3cyclictest25-21ksoftirqd/108:40:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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