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2025-12-12 - 13:49
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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 Fri Dec 12, 2025 00:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137191207142,53phc2sys0-21swapper/319:07:523
203592203169,22sleep20-21swapper/219:07:152
184422202167,24sleep00-21swapper/019:05:080
202852199166,22sleep10-21swapper/119:06:211
680821150,2sleep00-21swapper/000:15:180
2087099731,70cyclictest13547-21kworker/2:100:30:272
20870996212,33cyclictest17297-21kworker/2:020:45:272
2087099613,56cyclictest17747-21kworker/2:122:35:472
281802520,2sleep00-21swapper/022:45:160
199542500,4sleep00-21swapper/020:15:000
20871994437,4cyclictest11661-21idleruntime-cro21:04:593
20870994313,28cyclictest0-21swapper/200:03:362
2087099422,38cyclictest17747-21kworker/2:122:31:072
136991420,0ptp4l401ktimersoftd/319:45:033
20870994112,27cyclictest0-21swapper/221:20:362
136991410,0ptp4l401ktimersoftd/319:40:173
136991410,0ptp4l401ktimersoftd/300:05:553
2087099402,36cyclictest25986-21kworker/2:223:22:272
20870994011,27cyclictest0-21swapper/222:40:062
2087099393,17cyclictest854-21latency_hist21:50:012
2087099392,35cyclictest13547-21kworker/2:123:49:512
2087099383,34cyclictest13547-21kworker/2:123:53:232
20870993832,4cyclictest33-21ksoftirqd/223:18:452
2087099383,17cyclictest421-21cat19:35:002
2087099382,35cyclictest13547-21kworker/2:123:36:032
2087099382,34cyclictest13547-21kworker/2:123:41:152
20870993815,21cyclictest0-21swapper/222:20:072
2087099381,35cyclictest25986-21kworker/2:223:27:152
20869993831,4cyclictest25-21ksoftirqd/100:10:011
20870993731,4cyclictest33-21ksoftirqd/222:04:502
20870993730,4cyclictest33-21ksoftirqd/219:22:032
2087099372,24cyclictest17297-21kworker/2:020:33:442
2087099371,35cyclictest13547-21kworker/2:123:57:112
20868993732,3cyclictest9-21ksoftirqd/019:20:010
136991370,0ptp4l401ktimersoftd/323:20:153
136991370,0ptp4l401ktimersoftd/321:45:203
20871993631,3cyclictest22574-21cron22:34:593
20870993630,4cyclictest33-21ksoftirqd/222:16:222
2087099362,24cyclictest17297-21kworker/2:021:13:522
2087099362,24cyclictest17297-21kworker/2:021:02:162
2087099362,24cyclictest17297-21kworker/2:020:51:192
2087099362,23cyclictest17297-21kworker/2:021:05:042
2087099362,17cyclictest15246-21cat20:05:012
2087099362,14cyclictest13547-21kworker/2:100:37:232
2087099361,33cyclictest13547-21kworker/2:123:32:232
20869993630,3cyclictest25-21ksoftirqd/120:20:041
136991360,0ptp4l401ktimersoftd/322:55:213
136991360,0ptp4l401ktimersoftd/319:20:013
20871993529,4cyclictest41-21ksoftirqd/323:08:303
20871993529,4cyclictest41-21ksoftirqd/320:04:093
20870993530,3cyclictest33-21ksoftirqd/222:07:312
20870993530,3cyclictest33-21ksoftirqd/222:07:312
20870993529,4cyclictest33-21ksoftirqd/223:10:372
20870993529,4cyclictest33-21ksoftirqd/223:09:052
20870993529,4cyclictest33-21ksoftirqd/220:41:512
20870993529,4cyclictest33-21ksoftirqd/220:38:022
2087099352,24cyclictest17297-21kworker/2:020:59:512
2087099352,23cyclictest17297-21kworker/2:020:27:162
20870993514,3cyclictest11175-21/usr/sbin/munin00:25:182
2087099351,33cyclictest13547-21kworker/2:100:24:432
20870993513,20cyclictest0-21swapper/222:57:362
20869993530,3cyclictest28503-21awk21:40:011
20869993530,3cyclictest28503-21awk21:40:001
20869993529,4cyclictest25-21ksoftirqd/122:56:011
20869993529,4cyclictest25-21ksoftirqd/121:04:081
20869993529,4cyclictest25-21ksoftirqd/119:27:161
20869993528,4cyclictest25-21ksoftirqd/121:45:121
2086999351,30cyclictest4802-21ls19:40:271
20868993529,4cyclictest9-21ksoftirqd/020:36:110
20868993529,4cyclictest9-21ksoftirqd/020:06:020
20868993529,4cyclictest9-21ksoftirqd/000:34:360
136991350,0ptp4l401ktimersoftd/300:30:223
136991350,0ptp4l401ktimersoftd/300:10:143
20871993428,4cyclictest41-21ksoftirqd/323:32:533
20871993428,3cyclictest41-21ksoftirqd/319:30:003
20871993427,5cyclictest41-21ksoftirqd/319:30:553
20870993429,3cyclictest33-21ksoftirqd/219:42:452
20870993428,4cyclictest33-21ksoftirqd/222:53:162
20870993428,4cyclictest33-21ksoftirqd/221:32:162
20870993428,4cyclictest33-21ksoftirqd/219:37:432
20870993428,4cyclictest33-21ksoftirqd/219:25:352
2087099340,24cyclictest9012-21kworker/2:219:59:282
2087099340,24cyclictest17297-21kworker/2:020:15:352
20869993429,3cyclictest25-21ksoftirqd/122:08:301
20869993429,3cyclictest25-21ksoftirqd/122:08:291
20869993429,3cyclictest25-21ksoftirqd/100:00:011
20869993428,4cyclictest25-21ksoftirqd/123:41:451
20869993427,5cyclictest25-21ksoftirqd/121:40:461
20869993427,5cyclictest25-21ksoftirqd/120:10:531
20868993430,2cyclictest9-21ksoftirqd/022:05:340
20868993430,2cyclictest9-21ksoftirqd/022:05:340
20868993428,4cyclictest9-21ksoftirqd/023:18:550
20868993427,5cyclictest9-21ksoftirqd/023:24:520
20868993427,5cyclictest9-21ksoftirqd/000:08:480
137191343,2phc2sys121rcu_preempt22:00:153
20871993327,4cyclictest41-21ksoftirqd/323:58:333
20871993327,4cyclictest41-21ksoftirqd/323:25:393
20871993327,4cyclictest41-21ksoftirqd/322:40:343
20871993327,4cyclictest41-21ksoftirqd/322:07:093
20871993327,4cyclictest41-21ksoftirqd/322:07:083
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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