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2026-07-12 - 08:46
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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 rackdslot1.osadl.org (updated Sun Jul 12, 2026 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
539621870,3sleep20-21swapper/219:05:272
250121430,6sleep3630299cyclictest23:39:593
2670021200,5sleep00-21swapper/023:20:240
6300997124,4cyclictest25-21ksoftirqd/120:18:281
6300996924,4cyclictest25-21ksoftirqd/122:33:321
6300996923,8cyclictest25-21ksoftirqd/120:20:201
134491670,20ptp4l0-21swapper/200:05:182
6300996425,4cyclictest25-21ksoftirqd/123:15:201
6300995922,4cyclictest25-21ksoftirqd/122:57:551
134491580,5ptp4l0-21swapper/021:50:200
134491570,20ptp4l0-21swapper/222:39:232
630099564,3cyclictest121rcu_preempt20:40:131
134491560,4ptp4l0-21swapper/019:31:280
134491560,3ptp4l0-21swapper/200:15:242
134491560,13ptp4l3967-21apt-get19:05:131
134491550,3ptp4l0-21swapper/022:16:550
6300995429,5cyclictest25-21ksoftirqd/123:05:281
6300995421,3cyclictest25-21ksoftirqd/120:29:331
6300995420,3cyclictest25-21ksoftirqd/122:11:471
6300995414,9cyclictest25-21ksoftirqd/119:45:131
6300995414,9cyclictest25-21ksoftirqd/119:45:131
33992540,2sleep10-21swapper/123:40:171
134491540,5ptp4l0-21swapper/120:30:141
134491540,5ptp4l0-21swapper/019:09:340
134491540,3ptp4l0-21swapper/119:32:381
134491540,3ptp4l0-21swapper/020:40:000
134491540,15ptp4l33-21ksoftirqd/219:48:192
134491540,15ptp4l33-21ksoftirqd/219:48:192
6300995318,3cyclictest25-21ksoftirqd/100:25:191
6300995316,8cyclictest25-21ksoftirqd/122:35:141
6300995315,8cyclictest25-21ksoftirqd/120:45:271
134491530,4ptp4l630299cyclictest21:54:123
134491530,4ptp4l0-21swapper/200:35:322
134491530,4ptp4l0-21swapper/121:22:131
134491530,4ptp4l0-21swapper/019:29:580
6300995218,4cyclictest25-21ksoftirqd/119:50:231
6300995217,6cyclictest25-21ksoftirqd/119:40:151
6300995213,4cyclictest25-21ksoftirqd/123:10:171
6300995211,9cyclictest25-21ksoftirqd/121:40:151
134491520,4ptp4l0-21swapper/019:42:540
134491520,3ptp4l0-21swapper/223:15:302
6301995133,16cyclictest33-21ksoftirqd/219:30:012
6300995125,6cyclictest25-21ksoftirqd/100:35:011
6300995119,9cyclictest25-21ksoftirqd/120:55:271
6300995118,4cyclictest25-21ksoftirqd/121:00:011
6300995117,3cyclictest25-21ksoftirqd/123:23:001
6300995111,9cyclictest25-21ksoftirqd/123:45:211
158162510,5sleep315819-21unixbench_singl00:05:273
134491510,5ptp4l0-21swapper/222:55:022
134491510,5ptp4l0-21swapper/023:25:580
134491510,3ptp4l0-21swapper/021:43:530
6300995021,6cyclictest25-21ksoftirqd/120:10:111
630099501,3cyclictest121rcu_preempt22:45:001
134491500,4ptp4l0-21swapper/300:20:173
134491500,4ptp4l0-21swapper/223:57:512
134491500,4ptp4l0-21swapper/222:18:402
134491500,4ptp4l0-21swapper/122:04:261
134491500,4ptp4l0-21swapper/121:34:511
134491500,4ptp4l0-21swapper/000:33:110
134491500,4ptp4l0-21swapper/000:17:400
134491500,3ptp4l0-21swapper/021:33:320
6300994920,3cyclictest25-21ksoftirqd/122:50:131
6300994920,3cyclictest25-21ksoftirqd/119:20:141
6300994914,6cyclictest25-21ksoftirqd/121:15:291
134491490,4ptp4l0-21swapper/122:45:571
134491490,4ptp4l0-21swapper/121:46:281
134491490,4ptp4l0-21swapper/121:05:031
134491490,4ptp4l0-21swapper/100:07:111
134491490,4ptp4l0-21swapper/021:59:240
134491490,4ptp4l0-21swapper/020:20:080
134491490,3ptp4l0-21swapper/221:39:422
6300994817,6cyclictest25-21ksoftirqd/100:25:011
134491480,4ptp4l0-21swapper/122:25:141
134491480,4ptp4l0-21swapper/119:17:391
134491480,4ptp4l0-21swapper/020:47:320
134491480,4ptp4l0-21swapper/019:11:160
134491480,3ptp4l0-21swapper/223:29:582
134491480,3ptp4l0-21swapper/120:08:061
6300994722,6cyclictest25-21ksoftirqd/100:10:531
6300994715,5cyclictest25-21ksoftirqd/123:55:221
630099471,3cyclictest121rcu_preempt19:25:171
134491470,9ptp4l0-21swapper/323:40:123
134491470,9ptp4l0-21swapper/323:20:523
134491470,4ptp4l0-21swapper/323:10:173
134491470,4ptp4l0-21swapper/222:07:082
134491470,4ptp4l0-21swapper/122:22:061
134491470,4ptp4l0-21swapper/022:42:010
134491470,3ptp4l0-21swapper/223:45:202
6300994636,3cyclictest25-21ksoftirqd/121:55:251
6300994621,6cyclictest25-21ksoftirqd/121:50:161
6300994612,7cyclictest25-21ksoftirqd/120:35:161
630099460,3cyclictest121rcu_preempt00:35:281
134491460,4ptp4l0-21swapper/000:38:210
134491460,3ptp4l0-21swapper/123:28:581
134491460,3ptp4l0-21swapper/020:15:200
134491460,2ptp4l0-21swapper/020:57:280
134491460,10ptp4l0-21swapper/220:35:252
630099459,6cyclictest25-21ksoftirqd/119:10:151
630099456,2cyclictest25-21ksoftirqd/122:06:461
630099452,2cyclictest25-21ksoftirqd/121:28:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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