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2026-06-18 - 09:04
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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 Jun 18, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
174232206173,22sleep30-21swapper/319:07:333
174932205172,22sleep10-21swapper/119:08:281
173382205172,22sleep00-21swapper/019:06:260
173302203170,22sleep20-21swapper/219:06:202
2935421650,5sleep21790499cyclictest20:40:192
2935421650,5sleep21790499cyclictest20:40:192
46942630,3sleep10-21swapper/123:10:251
139391610,1ptp4l401ktimersoftd/300:00:223
100152560,4sleep341-21ksoftirqd/320:00:173
312392510,4sleep031238-21sed23:00:130
1790299513,44cyclictest23529-21turbostat22:45:020
221892500,2sleep00-21swapper/021:35:000
1790299487,10cyclictest9-21ksoftirqd/019:20:260
17902994816,6cyclictest9-21ksoftirqd/023:25:210
17902994816,4cyclictest9-21ksoftirqd/023:05:210
139391480,1ptp4l401ktimersoftd/300:32:343
1790299473,3cyclictest121rcu_preempt22:25:000
17902994717,7cyclictest9-21ksoftirqd/023:45:000
1790599463,15cyclictest121rcu_preempt20:35:203
17902994641,2cyclictest5500-21wc21:00:000
17902994610,4cyclictest9-21ksoftirqd/023:30:250
17902994511,3cyclictest9-21ksoftirqd/021:05:220
17902994510,4cyclictest9-21ksoftirqd/000:25:170
17902994413,4cyclictest9-21ksoftirqd/000:10:260
139391440,0ptp4l401ktimersoftd/322:08:143
17904994336,4cyclictest18641-21dump-pmu-power20:20:012
1790299439,4cyclictest9-21ksoftirqd/020:40:270
1790299439,4cyclictest9-21ksoftirqd/020:40:270
1790299436,4cyclictest9-21ksoftirqd/019:45:190
17902994313,4cyclictest9-21ksoftirqd/019:30:000
139391430,0ptp4l401ktimersoftd/323:09:363
139391430,0ptp4l401ktimersoftd/320:13:223
139391430,0ptp4l401ktimersoftd/320:13:213
17903994236,3cyclictest15022-21sh21:20:001
1790299423,2cyclictest57898rtkit-daemon19:19:430
17902994214,6cyclictest9-21ksoftirqd/000:00:270
139391420,0ptp4l401ktimersoftd/322:33:053
139391420,0ptp4l401ktimersoftd/321:33:173
139391420,0ptp4l401ktimersoftd/321:17:563
139391420,0ptp4l401ktimersoftd/320:15:283
17904994135,3cyclictest33-21ksoftirqd/219:50:012
1790299419,4cyclictest9-21ksoftirqd/021:50:480
1790299419,3cyclictest9-21ksoftirqd/000:30:120
1790299418,4cyclictest9-21ksoftirqd/000:20:270
1790299416,6cyclictest9-21ksoftirqd/020:35:180
1790299415,4cyclictest9-21ksoftirqd/022:25:000
1790299413,3cyclictest121rcu_preempt00:10:000
1790299413,3cyclictest121rcu_preempt00:10:000
17902994110,6cyclictest9-21ksoftirqd/019:50:510
17902994110,4cyclictest9-21ksoftirqd/019:43:560
17902994110,4cyclictest9-21ksoftirqd/019:43:560
139391410,0ptp4l401ktimersoftd/320:53:083
139391410,0ptp4l401ktimersoftd/300:35:273
17905994030,9cyclictest41-21ksoftirqd/321:20:253
1790299402,6cyclictest9-21ksoftirqd/022:35:020
1790299401,5cyclictest9-21ksoftirqd/021:15:220
1790299401,4cyclictest9-21ksoftirqd/023:20:240
17902994013,3cyclictest9-21ksoftirqd/022:45:220
17902994012,7cyclictest9-21ksoftirqd/021:40:160
17902994010,4cyclictest9-21ksoftirqd/023:13:410
17905993928,9cyclictest41-21ksoftirqd/321:05:163
17904993934,3cyclictest33-21ksoftirqd/222:00:002
1790299399,4cyclictest9-21ksoftirqd/023:35:190
17902993934,3cyclictest9-21ksoftirqd/022:00:010
17902993932,3cyclictest9-21ksoftirqd/000:15:190
1790299391,5cyclictest9-21ksoftirqd/023:45:230
17902993911,4cyclictest9-21ksoftirqd/020:30:150
17905993832,3cyclictest41-21ksoftirqd/323:50:013
17904993833,3cyclictest1618-21sendmail-mta20:34:182
17904993832,3cyclictest33-21ksoftirqd/220:45:172
17904993832,3cyclictest33-21ksoftirqd/220:00:002
17904993831,5cyclictest33-21ksoftirqd/222:23:292
17902993834,2cyclictest9-21ksoftirqd/022:35:000
17902993833,3cyclictest9-21ksoftirqd/019:40:000
1790299382,3cyclictest121rcu_preempt20:00:250
1790299382,2cyclictest121rcu_preempt23:55:000
17905993733,3cyclictest41-21ksoftirqd/322:50:003
17905993733,2cyclictest41-21ksoftirqd/321:55:003
17904993731,4cyclictest33-21ksoftirqd/220:06:212
17904993731,3cyclictest33-21ksoftirqd/222:10:002
17904993730,4cyclictest33-21ksoftirqd/221:37:032
17903993731,4cyclictest25-21ksoftirqd/120:10:501
17903993731,4cyclictest25-21ksoftirqd/120:10:501
1790299379,3cyclictest9-21ksoftirqd/021:27:100
17902993732,2cyclictest27780-21interrupts21:45:160
17902993731,3cyclictest9-21ksoftirqd/022:50:240
17902993731,3cyclictest9-21ksoftirqd/020:50:000
17902993730,3cyclictest9-21ksoftirqd/020:20:280
17902993725,2cyclictest9-21ksoftirqd/022:10:220
17902993723,3cyclictest9-21ksoftirqd/020:10:000
1790299371,4cyclictest9-21ksoftirqd/023:16:170
1790299370,4cyclictest9-21ksoftirqd/019:10:130
1790299370,4cyclictest9-21ksoftirqd/019:10:130
1790599363,3cyclictest41-21ksoftirqd/321:00:043
17905993631,3cyclictest41-21ksoftirqd/323:30:123
17905993631,3cyclictest41-21ksoftirqd/320:34:593
17905993631,3cyclictest41-21ksoftirqd/300:15:133
17905993630,3cyclictest41-21ksoftirqd/323:40:583
17905993629,5cyclictest41-21ksoftirqd/319:25:113
17905993625,9cyclictest41-21ksoftirqd/323:20:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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