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2026-08-16 - 15:18
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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 Sun Aug 16, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591230162,22phc2sys0-21swapper/319:07:293
176982208174,23sleep10-21swapper/119:08:141
177812205173,21sleep20-21swapper/219:09:192
175992201167,23sleep00-21swapper/019:06:560
1096121830,7sleep31829099cyclictest23:15:153
1883021430,6sleep31829099cyclictest19:10:163
2191921290,4sleep21828999cyclictest22:30:202
138491630,1ptp4l401ktimersoftd/322:15:133
138491620,1ptp4l401ktimersoftd/323:32:443
1828999602,26cyclictest0-21swapper/222:45:252
313132560,3sleep00-21swapper/021:45:140
138491550,1ptp4l391rcuc/322:55:163
138491540,1ptp4l401ktimersoftd/320:41:303
281442510,2sleep10-21swapper/120:35:151
189582510,2sleep10-21swapper/119:10:181
138491490,12ptp4l401ktimersoftd/322:40:273
50798450,8rtkit-daemon0-21swapper/300:11:243
138491430,0ptp4l401ktimersoftd/321:00:093
138491430,0ptp4l401ktimersoftd/320:51:463
138491430,0ptp4l401ktimersoftd/320:18:563
138491420,0ptp4l401ktimersoftd/320:56:243
138491420,0ptp4l401ktimersoftd/320:56:243
138491420,0ptp4l401ktimersoftd/320:20:183
138491420,0ptp4l401ktimersoftd/300:32:143
18289993833,3cyclictest12821-21cron21:10:012
18288993832,4cyclictest25-21ksoftirqd/100:33:481
18290993730,4cyclictest22741-21ls23:40:013
18289993731,4cyclictest33-21ksoftirqd/221:29:302
18289993731,4cyclictest33-21ksoftirqd/221:29:302
18289993731,3cyclictest15872-21tmpfiles00:30:082
1828999371,22cyclictest9676-21awk19:55:252
18288993731,4cyclictest25-21ksoftirqd/123:55:111
18290993630,4cyclictest41-21ksoftirqd/321:36:023
18290993630,4cyclictest41-21ksoftirqd/321:31:253
18290993630,4cyclictest41-21ksoftirqd/319:54:213
18290993629,4cyclictest41-21ksoftirqd/322:52:403
18290993629,4cyclictest41-21ksoftirqd/320:09:493
18290993629,4cyclictest41-21ksoftirqd/319:46:173
18289993631,3cyclictest33-21ksoftirqd/223:30:392
18289993630,4cyclictest33-21ksoftirqd/223:36:322
18289993630,4cyclictest33-21ksoftirqd/223:21:232
18289993630,4cyclictest33-21ksoftirqd/220:10:362
18288993630,4cyclictest25-21ksoftirqd/122:37:061
18288993630,4cyclictest25-21ksoftirqd/121:42:011
18288993629,5cyclictest25-21ksoftirqd/123:23:201
18288993629,4cyclictest25-21ksoftirqd/123:48:071
18288993629,4cyclictest25-21ksoftirqd/121:18:581
18287993630,4cyclictest9-21ksoftirqd/022:04:430
1828799360,34cyclictest25132-21cron21:35:000
138491360,0ptp4l401ktimersoftd/321:10:143
50798350,6rtkit-daemon0-21swapper/020:51:080
18290993530,3cyclictest41-21ksoftirqd/319:19:513
18290993529,4cyclictest41-21ksoftirqd/322:03:143
18290993529,4cyclictest41-21ksoftirqd/321:42:353
18290993529,4cyclictest41-21ksoftirqd/321:28:563
18290993529,4cyclictest41-21ksoftirqd/321:28:563
18290993529,4cyclictest41-21ksoftirqd/319:35:073
18290993529,4cyclictest41-21ksoftirqd/300:00:103
18289993530,3cyclictest33-21ksoftirqd/222:20:022
18289993530,3cyclictest33-21ksoftirqd/219:34:452
18289993529,4cyclictest33-21ksoftirqd/223:10:012
1828999350,1cyclictest0-21swapper/219:25:212
18288993529,4cyclictest25-21ksoftirqd/123:42:251
18288993529,4cyclictest25-21ksoftirqd/121:22:031
18288993529,4cyclictest25-21ksoftirqd/120:53:151
18288993529,4cyclictest25-21ksoftirqd/120:45:451
18288993529,4cyclictest25-21ksoftirqd/119:16:071
18287993529,4cyclictest9-21ksoftirqd/023:57:280
18287993529,4cyclictest9-21ksoftirqd/022:41:220
18287993529,4cyclictest9-21ksoftirqd/020:59:330
18287993529,4cyclictest9-21ksoftirqd/020:59:330
18287993529,4cyclictest9-21ksoftirqd/020:37:210
138491350,0ptp4l401ktimersoftd/321:19:593
18290993427,5cyclictest41-21ksoftirqd/321:56:323
18289993430,3cyclictest33-21ksoftirqd/220:55:582
18289993430,3cyclictest33-21ksoftirqd/220:55:572
18289993429,3cyclictest33-21ksoftirqd/221:00:032
18289993429,3cyclictest33-21ksoftirqd/220:39:012
18289993428,4cyclictest33-21ksoftirqd/223:44:582
18289993428,4cyclictest33-21ksoftirqd/222:57:252
18289993428,4cyclictest33-21ksoftirqd/222:38:112
18289993428,4cyclictest33-21ksoftirqd/221:41:072
18289993428,4cyclictest33-21ksoftirqd/219:43:202
18289993428,4cyclictest33-21ksoftirqd/219:39:032
18289993427,5cyclictest33-21ksoftirqd/220:41:372
18288993428,4cyclictest25-21ksoftirqd/123:25:031
18288993428,4cyclictest25-21ksoftirqd/122:32:011
18288993428,4cyclictest25-21ksoftirqd/121:14:331
18288993428,4cyclictest25-21ksoftirqd/119:49:331
18288993427,4cyclictest25-21ksoftirqd/100:15:121
18287993429,3cyclictest9-21ksoftirqd/022:18:440
18287993429,3cyclictest9-21ksoftirqd/021:01:570
18287993429,3cyclictest9-21ksoftirqd/020:30:000
18287993429,3cyclictest9-21ksoftirqd/020:30:000
18287993429,3cyclictest9-21ksoftirqd/019:15:580
18287993429,3cyclictest20269-21cron23:35:000
18287993428,4cyclictest9-21ksoftirqd/022:57:510
18287993428,4cyclictest9-21ksoftirqd/021:17:340
18287993428,4cyclictest9-21ksoftirqd/019:10:490
18287993427,4cyclictest9-21ksoftirqd/021:40:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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