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2026-08-18 - 21:30
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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 Aug 18, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
224912208174,23sleep20-21swapper/207:05:592
139491208175,22phc2sys0-21swapper/307:08:293
227852203170,22sleep00-21swapper/007:09:420
227242202169,22sleep10-21swapper/107:08:561
2639821370,6sleep22310199cyclictest11:45:202
1809221230,1sleep00-21swapper/008:05:220
202712770,5sleep120277-21dump-pmu-power09:20:001
139391720,1ptp4l391rcuc/309:45:263
201592580,2sleep00-21swapper/010:25:220
139391530,1ptp4l391rcuc/311:50:373
63742510,1sleep20-21swapper/209:55:282
243062510,1sleep20-21swapper/211:40:222
139391510,1ptp4l391rcuc/309:53:313
134491500,2getstats0-21swapper/311:28:263
139391490,1ptp4l401ktimersoftd/310:31:533
139391480,1ptp4l391rcuc/308:36:013
139391460,0ptp4l401ktimersoftd/309:57:583
2310199450,2cyclictest0-21swapper/211:05:232
139391440,0ptp4l401ktimersoftd/310:49:143
57898420,1rtkit-daemon577-21rtkit-daemon12:16:082
23099994236,3cyclictest2108-21cat09:50:000
139391420,1ptp4l401ktimersoftd/307:13:423
23101994033,4cyclictest33-21ksoftirqd/210:55:012
23102993731,4cyclictest41-21ksoftirqd/310:43:193
23102993731,4cyclictest41-21ksoftirqd/310:43:193
23100993731,4cyclictest25-21ksoftirqd/110:24:391
139391370,0ptp4l401ktimersoftd/307:26:193
23102993631,3cyclictest41-21ksoftirqd/312:25:523
23101993630,4cyclictest33-21ksoftirqd/208:54:262
23101993630,4cyclictest33-21ksoftirqd/207:50:402
23100993631,3cyclictest25-21ksoftirqd/110:45:001
23100993631,3cyclictest25-21ksoftirqd/110:45:001
23100993631,3cyclictest25-21ksoftirqd/109:45:131
23100993631,3cyclictest25-21ksoftirqd/108:11:531
23100993630,4cyclictest25-21ksoftirqd/110:05:541
23100993630,4cyclictest25-21ksoftirqd/109:57:191
23100993630,4cyclictest25-21ksoftirqd/109:42:391
23100993630,4cyclictest25-21ksoftirqd/108:52:561
23100993630,4cyclictest25-21ksoftirqd/107:42:001
23100993630,4cyclictest25-21ksoftirqd/107:28:281
23099993630,4cyclictest9-21ksoftirqd/011:23:470
23102993529,4cyclictest41-21ksoftirqd/311:45:523
23102993529,4cyclictest41-21ksoftirqd/310:37:013
23102993529,3cyclictest41-21ksoftirqd/311:04:133
23101993530,3cyclictest33-21ksoftirqd/210:02:512
23101993529,4cyclictest33-21ksoftirqd/211:31:522
23101993529,4cyclictest33-21ksoftirqd/211:22:052
23101993529,4cyclictest33-21ksoftirqd/211:19:562
23101993529,4cyclictest33-21ksoftirqd/208:59:232
23101993528,4cyclictest33-21ksoftirqd/209:32:172
23101993510,24cyclictest15791-21kworker/2:211:26:442
23100993530,3cyclictest25-21ksoftirqd/112:35:111
23100993530,3cyclictest25-21ksoftirqd/112:35:111
23100993530,3cyclictest25-21ksoftirqd/109:10:131
23100993529,4cyclictest25-21ksoftirqd/110:29:371
23100993529,4cyclictest25-21ksoftirqd/110:17:291
23100993529,4cyclictest25-21ksoftirqd/108:29:261
23100993529,4cyclictest25-21ksoftirqd/108:20:111
23100993529,4cyclictest25-21ksoftirqd/108:02:301
23100993529,4cyclictest25-21ksoftirqd/107:32:581
23100993528,4cyclictest25-21ksoftirqd/111:15:101
23099993530,3cyclictest18024-21latency_hist11:30:010
23099993529,4cyclictest9-21ksoftirqd/010:52:540
23099993529,4cyclictest9-21ksoftirqd/007:44:150
139391350,1ptp4l401ktimersoftd/311:56:073
23102993429,3cyclictest41-21ksoftirqd/308:28:473
23102993429,3cyclictest41-21ksoftirqd/307:30:213
23102993428,4cyclictest41-21ksoftirqd/310:51:253
23102993428,4cyclictest41-21ksoftirqd/308:23:343
23102993428,4cyclictest41-21ksoftirqd/308:06:503
23102993427,4cyclictest41-21ksoftirqd/312:14:253
23101993428,4cyclictest33-21ksoftirqd/212:13:472
23101993428,4cyclictest33-21ksoftirqd/209:28:562
23101993428,4cyclictest33-21ksoftirqd/209:13:072
23101993428,4cyclictest33-21ksoftirqd/207:16:462
23100993429,3cyclictest25-21ksoftirqd/111:06:311
23100993428,4cyclictest25-21ksoftirqd/112:31:031
23100993428,4cyclictest25-21ksoftirqd/112:28:541
23100993428,4cyclictest25-21ksoftirqd/112:06:051
23100993428,4cyclictest25-21ksoftirqd/111:29:061
23100993428,4cyclictest25-21ksoftirqd/107:46:171
23100993428,4cyclictest25-21ksoftirqd/107:16:481
23099993430,2cyclictest9-21ksoftirqd/011:10:190
23099993429,3cyclictest9-21ksoftirqd/008:10:100
23099993428,4cyclictest9-21ksoftirqd/010:21:210
23099993428,4cyclictest9-21ksoftirqd/009:09:090
23102993328,3cyclictest41-21ksoftirqd/309:05:123
23102993327,4cyclictest41-21ksoftirqd/312:21:073
23102993327,4cyclictest41-21ksoftirqd/310:23:373
23102993327,4cyclictest41-21ksoftirqd/310:16:393
23102993327,4cyclictest41-21ksoftirqd/309:13:533
23102993327,4cyclictest41-21ksoftirqd/307:36:283
23101993328,3cyclictest33-21ksoftirqd/210:21:592
23101993328,3cyclictest33-21ksoftirqd/209:55:002
23101993328,3cyclictest33-21ksoftirqd/208:05:132
23101993328,3cyclictest33-21ksoftirqd/207:10:112
23101993327,4cyclictest33-21ksoftirqd/211:57:472
23101993327,4cyclictest33-21ksoftirqd/210:17:142
23101993327,4cyclictest33-21ksoftirqd/209:09:422
23101993327,4cyclictest33-21ksoftirqd/208:26:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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