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2026-09-08 - 20:36
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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 Tue Sep 08, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19082231170,50sleep20-21swapper/207:08:272
139491209166,32phc2sys0-21swapper/307:05:023
18592204173,21sleep10-21swapper/107:07:501
17132202169,22sleep00-21swapper/007:05:560
222542600,2sleep30-21swapper/310:05:153
2340995813,22cyclictest18057-21/usr/sbin/munin11:05:173
105492540,2sleep20-21swapper/211:55:182
234099522,25cyclictest0-21swapper/309:58:573
234099510,2cyclictest68752sleep309:32:133
2339994818,9cyclictest33-21ksoftirqd/209:35:212
2339994617,4cyclictest33-21ksoftirqd/212:39:592
2339994612,5cyclictest33-21ksoftirqd/210:40:002
2339994611,6cyclictest33-21ksoftirqd/207:50:132
120292460,2sleep20-21swapper/207:30:012
234099456,22cyclictest14150-21taskset09:48:253
234099450,2cyclictest7912sleep310:26:373
2340994413,22cyclictest10990-21/usr/sbin/munin08:35:193
234099440,3cyclictest17570-21taskset08:46:133
2339994429,12cyclictest33-21ksoftirqd/207:30:002
2339994411,6cyclictest33-21ksoftirqd/210:20:232
2339994411,5cyclictest33-21ksoftirqd/208:05:232
2337994440,2cyclictest17039-21grep12:10:010
139391440,0ptp4l401ktimersoftd/310:50:303
234099431,3cyclictest0-21swapper/308:03:253
233999438,6cyclictest33-21ksoftirqd/208:50:232
233999437,10cyclictest33-21ksoftirqd/210:25:182
2339994337,3cyclictest33-21ksoftirqd/207:40:012
2339994329,5cyclictest33-21ksoftirqd/209:15:002
2339994328,13cyclictest33-21ksoftirqd/208:05:012
2337994338,3cyclictest24931-21sh11:20:010
2337994338,3cyclictest24931-21sh11:20:000
234099424,21cyclictest0-21swapper/312:17:093
233999428,6cyclictest33-21ksoftirqd/211:35:152
2339994235,4cyclictest16864-21cron09:55:012
2339994231,9cyclictest33-21ksoftirqd/210:00:122
2339994211,4cyclictest33-21ksoftirqd/207:45:002
2338994236,4cyclictest4533-21cron07:15:011
139391420,0ptp4l401ktimersoftd/311:48:303
139391420,0ptp4l401ktimersoftd/307:50:143
233999418,4cyclictest33-21ksoftirqd/211:49:592
2339994136,3cyclictest33-21ksoftirqd/212:05:012
233999405,6cyclictest33-21ksoftirqd/212:25:132
2339994035,3cyclictest33-21ksoftirqd/209:45:202
2339994028,9cyclictest33-21ksoftirqd/209:20:202
2339994028,10cyclictest33-21ksoftirqd/207:10:242
2339994026,12cyclictest33-21ksoftirqd/210:10:202
233999401,4cyclictest33-21ksoftirqd/210:30:262
2339994010,4cyclictest33-21ksoftirqd/211:40:272
2338994035,3cyclictest25-21ksoftirqd/111:00:011
2339993934,3cyclictest33-21ksoftirqd/210:00:012
2339993934,3cyclictest33-21ksoftirqd/209:00:152
2339993933,3cyclictest33-21ksoftirqd/208:25:282
2339993926,11cyclictest33-21ksoftirqd/212:10:132
2338993935,3cyclictest25-21ksoftirqd/111:59:591
233999388,3cyclictest33-21ksoftirqd/210:59:552
2339993826,9cyclictest33-21ksoftirqd/207:20:272
233999381,7cyclictest33-21ksoftirqd/210:50:272
233999381,4cyclictest33-21ksoftirqd/210:05:262
2338993833,3cyclictest25-21ksoftirqd/110:35:121
2340993731,4cyclictest41-21ksoftirqd/312:35:423
2340993731,4cyclictest41-21ksoftirqd/311:39:593
2340993730,4cyclictest41-21ksoftirqd/308:26:123
233999378,4cyclictest33-21ksoftirqd/211:29:252
233999377,4cyclictest33-21ksoftirqd/207:47:412
233999377,3cyclictest33-21ksoftirqd/212:20:172
233999376,5cyclictest33-21ksoftirqd/209:06:042
2339993733,3cyclictest33-21ksoftirqd/210:19:592
2339993733,2cyclictest33-21ksoftirqd/209:34:592
2339993732,3cyclictest33-21ksoftirqd/209:40:142
2339993731,3cyclictest33-21ksoftirqd/211:00:122
2339993731,3cyclictest33-21ksoftirqd/208:45:242
2338993732,3cyclictest25-21ksoftirqd/108:20:011
233899371,2cyclictest121rcu_preempt07:30:001
2337993730,4cyclictest9-21ksoftirqd/009:36:590
2340993631,3cyclictest41-21ksoftirqd/308:50:103
2340993630,4cyclictest41-21ksoftirqd/307:31:223
233999368,3cyclictest33-21ksoftirqd/211:32:502
233999366,4cyclictest33-21ksoftirqd/211:08:412
233999365,6cyclictest33-21ksoftirqd/210:40:152
233999365,6cyclictest33-21ksoftirqd/210:40:152
2339993632,2cyclictest33-21ksoftirqd/211:55:012
2339993631,3cyclictest33-21ksoftirqd/211:14:592
2339993631,3cyclictest33-21ksoftirqd/210:45:192
2339993631,3cyclictest33-21ksoftirqd/209:25:192
2339993630,3cyclictest33-21ksoftirqd/212:05:162
2339993630,3cyclictest33-21ksoftirqd/209:20:002
2339993630,3cyclictest33-21ksoftirqd/207:15:172
2339993629,4cyclictest33-21ksoftirqd/208:12:482
233999361,4cyclictest33-21ksoftirqd/208:55:222
233999360,4cyclictest33-21ksoftirqd/211:20:192
233899363,3cyclictest121rcu_preempt10:30:161
2338993631,3cyclictest25-21ksoftirqd/109:35:211
2338993630,4cyclictest25-21ksoftirqd/112:36:561
2338993630,4cyclictest25-21ksoftirqd/107:49:131
2338993630,4cyclictest25-21ksoftirqd/107:36:501
2338993629,4cyclictest25-21ksoftirqd/111:45:061
2338993621,3cyclictest25-21ksoftirqd/110:05:191
2338993618,5cyclictest25-21ksoftirqd/108:45:271
233899360,5cyclictest29505-21grep08:05:161
2337993630,4cyclictest9-21ksoftirqd/011:21:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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