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2026-06-18 - 22:29
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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 Thu Jun 18, 2026 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1305822410,16sleep30-21swapper/307:05:233
136642203169,22sleep10-21swapper/107:09:081
136402203170,22sleep20-21swapper/207:08:502
135762201168,22sleep00-21swapper/007:08:000
1189621440,6sleep31403599cyclictest09:15:143
1148921410,2sleep11403399cyclictest10:20:111
28722820,2sleep12873-21mailstats07:50:251
1403299719,18cyclictest22255-21latency10:40:190
138491650,1ptp4l391rcuc/309:10:243
93382550,2sleep29339-21grep11:20:142
138491550,1ptp4l401ktimersoftd/309:22:553
322072540,4sleep1231rcuc/112:05:221
264202520,2sleep20-21swapper/207:35:132
50798470,2rtkit-daemon0-21swapper/107:32:251
50798470,10rtkit-daemon0-21swapper/112:00:261
138491440,0ptp4l401ktimersoftd/307:38:123
14032994312,18cyclictest22079-21cut09:35:180
138491430,0ptp4l401ktimersoftd/311:35:273
138491430,0ptp4l401ktimersoftd/311:10:263
138491430,0ptp4l401ktimersoftd/308:30:043
138491420,0ptp4l401ktimersoftd/312:30:143
138491420,0ptp4l401ktimersoftd/311:27:113
138491420,0ptp4l401ktimersoftd/308:15:553
138491420,0ptp4l401ktimersoftd/308:13:053
138491420,0ptp4l401ktimersoftd/307:25:303
287702410,6sleep21403499cyclictest09:50:012
224152410,2sleep10-21swapper/110:40:211
14033994134,4cyclictest23350-21cron11:49:591
138491410,0ptp4l401ktimersoftd/308:00:153
1403499400,2cyclictest0-21swapper/207:55:332
138491400,1ptp4l401ktimersoftd/309:46:473
1403499398,30cyclictest0-21swapper/207:14:042
1403499398,30cyclictest0-21swapper/207:14:042
1403499390,37cyclictest0-21swapper/207:25:332
14033993831,4cyclictest25-21ksoftirqd/107:45:461
14034993731,4cyclictest33-21ksoftirqd/210:50:112
14034993731,4cyclictest33-21ksoftirqd/210:10:312
14034993730,4cyclictest33-21ksoftirqd/209:36:582
14032993731,4cyclictest9-21ksoftirqd/012:00:000
14035993631,3cyclictest41-21ksoftirqd/310:50:113
14035993630,4cyclictest41-21ksoftirqd/310:41:323
14034993631,3cyclictest33-21ksoftirqd/210:08:302
14034993631,3cyclictest33-21ksoftirqd/209:15:112
14034993630,4cyclictest33-21ksoftirqd/211:46:182
14034993630,4cyclictest33-21ksoftirqd/211:26:042
14034993630,4cyclictest33-21ksoftirqd/210:47:582
14034993630,4cyclictest33-21ksoftirqd/209:24:132
14032993631,3cyclictest9-21ksoftirqd/010:56:380
14032993631,3cyclictest9-21ksoftirqd/010:50:000
14032993630,4cyclictest9-21ksoftirqd/007:28:040
14032993630,4cyclictest9-21ksoftirqd/007:24:150
14035993530,3cyclictest41-21ksoftirqd/309:50:113
14035993530,3cyclictest41-21ksoftirqd/309:40:023
14035993529,4cyclictest41-21ksoftirqd/309:31:283
14035993529,4cyclictest41-21ksoftirqd/308:08:113
14035993528,5cyclictest41-21ksoftirqd/310:23:273
14034993530,3cyclictest33-21ksoftirqd/210:21:252
14034993529,4cyclictest33-21ksoftirqd/212:20:362
14034993529,4cyclictest33-21ksoftirqd/211:41:562
14034993529,4cyclictest33-21ksoftirqd/211:32:092
14034993529,4cyclictest33-21ksoftirqd/207:17:552
14034993528,4cyclictest33-21ksoftirqd/212:00:302
14033993529,4cyclictest25-21ksoftirqd/112:33:341
14033993529,4cyclictest25-21ksoftirqd/111:20:581
14033993529,4cyclictest25-21ksoftirqd/109:26:131
14033993529,4cyclictest25-21ksoftirqd/107:56:221
14032993530,3cyclictest9-21ksoftirqd/011:42:390
14032993530,3cyclictest9-21ksoftirqd/010:28:570
14032993529,4cyclictest9-21ksoftirqd/011:32:400
14032993529,4cyclictest9-21ksoftirqd/009:26:110
14032993529,4cyclictest9-21ksoftirqd/008:56:180
14032993529,4cyclictest9-21ksoftirqd/007:16:410
14035993429,3cyclictest41-21ksoftirqd/311:54:123
14035993428,4cyclictest41-21ksoftirqd/312:24:233
14035993428,4cyclictest41-21ksoftirqd/312:15:123
14035993428,4cyclictest41-21ksoftirqd/312:15:123
14035993428,4cyclictest41-21ksoftirqd/311:17:153
14035993428,4cyclictest41-21ksoftirqd/308:29:143
14035993428,4cyclictest41-21ksoftirqd/307:23:593
14035993428,3cyclictest41-21ksoftirqd/311:34:363
14035993428,3cyclictest41-21ksoftirqd/309:39:583
14034993429,3cyclictest33-21ksoftirqd/210:55:382
14034993429,3cyclictest33-21ksoftirqd/209:14:342
14034993428,4cyclictest33-21ksoftirqd/210:18:052
14034993428,4cyclictest33-21ksoftirqd/209:02:182
14034993427,4cyclictest33-21ksoftirqd/208:06:262
14033993429,3cyclictest25-21ksoftirqd/110:55:101
14033993428,4cyclictest25-21ksoftirqd/112:11:321
14033993428,4cyclictest25-21ksoftirqd/112:11:321
14033993428,4cyclictest25-21ksoftirqd/111:42:111
14033993428,4cyclictest25-21ksoftirqd/111:33:581
14033993428,4cyclictest25-21ksoftirqd/111:12:321
14033993428,4cyclictest25-21ksoftirqd/111:06:371
14033993428,4cyclictest25-21ksoftirqd/109:49:471
14033993428,4cyclictest25-21ksoftirqd/108:49:051
14033993428,4cyclictest25-21ksoftirqd/108:24:591
14033993428,4cyclictest25-21ksoftirqd/107:21:081
14032993429,3cyclictest9-21ksoftirqd/011:19:590
14032993428,4cyclictest9-21ksoftirqd/012:28:040
14032993428,4cyclictest9-21ksoftirqd/012:12:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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