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2026-05-07 - 00:45
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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 Wed May 06, 2026 12:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
126982233165,23sleep30-21swapper/307:07:293
106772201167,23sleep10-21swapper/107:05:021
126252199167,21sleep20-21swapper/207:06:332
126232199165,22sleep00-21swapper/007:06:310
1640821620,5sleep01319299cyclictest09:25:190
2068621540,6sleep21319499cyclictest10:40:142
2198121360,8sleep21319499cyclictest08:30:242
138491570,1ptp4l401ktimersoftd/311:45:273
17852560,5sleep01319299cyclictest11:05:230
138491540,1ptp4l401ktimersoftd/308:49:383
13195995423,3cyclictest41-21ksoftirqd/307:30:013
13195995222,4cyclictest41-21ksoftirqd/310:40:003
13195995121,3cyclictest41-21ksoftirqd/308:20:183
13195995119,4cyclictest41-21ksoftirqd/310:25:003
13195995119,4cyclictest41-21ksoftirqd/310:25:003
13195995022,3cyclictest41-21ksoftirqd/309:55:133
13195994920,3cyclictest41-21ksoftirqd/312:15:183
13195994918,3cyclictest41-21ksoftirqd/309:00:183
13195994830,15cyclictest41-21ksoftirqd/312:05:213
13195994815,8cyclictest41-21ksoftirqd/312:35:243
13195994720,8cyclictest41-21ksoftirqd/311:40:243
13195994719,7cyclictest41-21ksoftirqd/308:25:143
13195994719,4cyclictest41-21ksoftirqd/307:15:143
13195994718,4cyclictest41-21ksoftirqd/307:40:143
13195994718,3cyclictest41-21ksoftirqd/309:25:123
13195994716,4cyclictest41-21ksoftirqd/312:10:233
13195994621,3cyclictest41-21ksoftirqd/312:00:253
13195994620,3cyclictest41-21ksoftirqd/310:55:123
13195994618,3cyclictest41-21ksoftirqd/307:10:263
13195994617,8cyclictest41-21ksoftirqd/311:35:213
13195994615,7cyclictest41-21ksoftirqd/309:20:213
13195994614,4cyclictest41-21ksoftirqd/311:30:203
13195994613,4cyclictest41-21ksoftirqd/309:40:243
13195994612,4cyclictest41-21ksoftirqd/309:10:143
13195994520,6cyclictest41-21ksoftirqd/307:45:133
13195994517,3cyclictest41-21ksoftirqd/308:30:283
13195994514,3cyclictest41-21ksoftirqd/310:40:013
13195994511,4cyclictest41-21ksoftirqd/309:15:183
13195994418,6cyclictest41-21ksoftirqd/308:50:203
13195994415,4cyclictest41-21ksoftirqd/311:15:133
13195994415,3cyclictest41-21ksoftirqd/309:50:123
13195994414,8cyclictest41-21ksoftirqd/311:20:183
13195994412,7cyclictest41-21ksoftirqd/310:00:223
13195994411,3cyclictest41-21ksoftirqd/311:00:263
138491430,1ptp4l401ktimersoftd/307:58:593
138491430,0ptp4l401ktimersoftd/312:30:213
1319599436,5cyclictest41-21ksoftirqd/311:50:133
13195994314,4cyclictest41-21ksoftirqd/312:20:123
13195994313,4cyclictest41-21ksoftirqd/307:51:583
13195994312,4cyclictest41-21ksoftirqd/311:15:003
13195994312,4cyclictest41-21ksoftirqd/310:50:233
13195994312,3cyclictest41-21ksoftirqd/309:30:183
13193994337,4cyclictest27448-21cron12:00:001
13192994338,3cyclictest29939-21latency_hist12:05:000
138491420,1ptp4l401ktimersoftd/308:57:213
13195994217,7cyclictest41-21ksoftirqd/310:30:213
13195994214,6cyclictest41-21ksoftirqd/307:30:143
13195994212,6cyclictest41-21ksoftirqd/310:15:133
1319599417,4cyclictest41-21ksoftirqd/307:20:213
13195994129,3cyclictest41-21ksoftirqd/307:35:253
13195994115,7cyclictest41-21ksoftirqd/308:15:003
13195994114,6cyclictest41-21ksoftirqd/308:40:133
13195994112,7cyclictest41-21ksoftirqd/308:00:133
13194994135,4cyclictest32728-21cron10:00:002
138491400,0ptp4l401ktimersoftd/310:45:253
1319599408,7cyclictest41-21ksoftirqd/310:05:243
1319599407,4cyclictest41-21ksoftirqd/309:35:203
1319599401,4cyclictest41-21ksoftirqd/311:05:223
13195994012,7cyclictest41-21ksoftirqd/311:25:153
13194994034,3cyclictest20021-21latency_hist09:35:002
13195993925,6cyclictest41-21ksoftirqd/312:25:143
13195993913,4cyclictest41-21ksoftirqd/311:55:133
13195993910,7cyclictest41-21ksoftirqd/309:45:143
13195993833,3cyclictest41-21ksoftirqd/310:15:003
13195993833,3cyclictest41-21ksoftirqd/309:10:003
1319599381,3cyclictest121rcu_preempt08:15:253
1319599380,3cyclictest121rcu_preempt08:35:143
1319599380,2cyclictest121rcu_preempt08:10:003
13195993732,2cyclictest41-21ksoftirqd/310:25:133
13194993731,4cyclictest33-21ksoftirqd/211:26:562
13194993730,4cyclictest33-21ksoftirqd/207:12:592
13192993731,4cyclictest9-21ksoftirqd/008:18:120
13194993631,3cyclictest33-21ksoftirqd/210:31:192
13194993630,4cyclictest33-21ksoftirqd/209:21:362
13194993629,4cyclictest33-21ksoftirqd/208:21:052
13193993630,4cyclictest25-21ksoftirqd/110:08:321
13193993630,4cyclictest25-21ksoftirqd/109:45:001
13193993630,4cyclictest25-21ksoftirqd/107:59:381
13193993629,4cyclictest25-21ksoftirqd/108:50:291
13192993631,3cyclictest9-21ksoftirqd/010:05:010
13192993630,4cyclictest9-21ksoftirqd/010:10:040
13192993630,4cyclictest9-21ksoftirqd/009:20:540
13192993630,4cyclictest9-21ksoftirqd/008:06:280
13192993629,5cyclictest9-21ksoftirqd/008:34:030
50798350,8rtkit-daemon0-21swapper/107:31:271
50798350,7rtkit-daemon0-21swapper/011:36:010
13194993529,4cyclictest33-21ksoftirqd/210:46:282
13194993529,4cyclictest33-21ksoftirqd/209:36:472
13194993529,3cyclictest27697-21sh08:45:002
13194993514,4cyclictest17917-21acpi10:35:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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