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2026-05-29 - 18:43
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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 Fri May 29, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591205171,22phc2sys0-21swapper/307:08:243
85822203168,23sleep00-21swapper/007:05:270
89262202167,24sleep10-21swapper/107:09:511
87022200167,22sleep20-21swapper/207:07:012
1384911150,1ptp4l10659-21fschecks_time08:50:153
1385918763,16phc2sys0-21swapper/307:10:023
134991590,9getstats0-21swapper/309:20:123
9232995725,5cyclictest9-21ksoftirqd/009:05:190
923299534,7cyclictest4092-21sed10:45:180
327082520,4sleep032712-21dump-pmu-power08:20:000
180922480,3sleep1241ktimersoftd/112:15:221
180922480,3sleep1241ktimersoftd/112:15:221
9234994635,9cyclictest33-21ksoftirqd/211:54:492
134991460,1getstats0-21swapper/311:40:343
9235994529,13cyclictest41-21ksoftirqd/312:05:103
923299452,4cyclictest9-21ksoftirqd/012:05:100
138491440,0ptp4l401ktimersoftd/312:39:553
923299433,6cyclictest9-21ksoftirqd/011:25:220
138491430,0ptp4l401ktimersoftd/310:40:153
138491430,0ptp4l401ktimersoftd/308:19:523
923299423,6cyclictest9-21ksoftirqd/012:03:130
923299422,5cyclictest9-21ksoftirqd/010:25:010
923299420,5cyclictest9-21ksoftirqd/011:54:470
9232994115,5cyclictest9-21ksoftirqd/008:55:140
9235994035,3cyclictest41-21ksoftirqd/311:54:433
9233994013,26cyclictest27166-21kworker/1:208:38:241
923299404,7cyclictest9-21ksoftirqd/009:30:130
923299402,5cyclictest9-21ksoftirqd/009:40:180
9234993928,9cyclictest33-21ksoftirqd/210:50:262
9234993928,9cyclictest33-21ksoftirqd/210:50:262
923299395,7cyclictest9-21ksoftirqd/007:30:230
923299392,5cyclictest9-21ksoftirqd/008:35:000
9235993832,3cyclictest25977-21irqrtprio11:30:203
923299382,4cyclictest9-21ksoftirqd/010:35:240
923299381,5cyclictest9-21ksoftirqd/008:55:010
134991380,1getstats11455-1kworker/3:2H08:10:113
9235993731,4cyclictest41-21ksoftirqd/310:10:363
9235993730,4cyclictest41-21ksoftirqd/312:00:483
9235993719,16cyclictest5300-21cron10:50:003
9234993733,3cyclictest33-21ksoftirqd/207:40:002
9234993733,2cyclictest33-21ksoftirqd/209:40:002
9234993732,3cyclictest33-21ksoftirqd/212:25:002
923499371,34cyclictest32267-21sed10:35:272
9233993732,3cyclictest25-21ksoftirqd/110:00:111
9233993731,4cyclictest25-21ksoftirqd/111:22:101
9233993731,4cyclictest25-21ksoftirqd/110:43:151
923299375,7cyclictest9-21ksoftirqd/007:20:140
9235993631,3cyclictest41-21ksoftirqd/309:04:323
9235993630,4cyclictest41-21ksoftirqd/310:31:503
9234993631,3cyclictest33-21ksoftirqd/210:15:002
9234993631,3cyclictest33-21ksoftirqd/208:50:072
9234993630,4cyclictest33-21ksoftirqd/212:37:212
9234993628,3cyclictest33-21ksoftirqd/211:28:102
9233993629,4cyclictest25-21ksoftirqd/110:25:231
923399360,4cyclictest32657-21cron08:20:001
9232993630,4cyclictest9-21ksoftirqd/011:58:560
9232993629,4cyclictest9-21ksoftirqd/009:10:510
9232993629,4cyclictest9-21ksoftirqd/009:10:510
50798360,3rtkit-daemon5717-21sshd11:54:201
138491360,1ptp4l391rcuc/311:09:253
923599357,27cyclictest20940-21kworker/3:009:38:133
9235993530,3cyclictest41-21ksoftirqd/312:29:513
9235993529,4cyclictest41-21ksoftirqd/312:30:073
9235993529,4cyclictest41-21ksoftirqd/311:12:343
9235993529,4cyclictest41-21ksoftirqd/311:03:473
9235993529,4cyclictest41-21ksoftirqd/310:52:323
9235993529,4cyclictest41-21ksoftirqd/310:52:323
9235993529,4cyclictest41-21ksoftirqd/309:07:493
9235993528,5cyclictest41-21ksoftirqd/312:20:573
9234993530,3cyclictest33-21ksoftirqd/212:30:012
9234993530,3cyclictest33-21ksoftirqd/210:10:002
9234993530,3cyclictest33-21ksoftirqd/209:00:012
9234993529,4cyclictest33-21ksoftirqd/208:35:102
9234993529,4cyclictest33-21ksoftirqd/207:55:582
9234993529,3cyclictest33-21ksoftirqd/211:15:112
9234993528,5cyclictest33-21ksoftirqd/210:32:132
9234993528,4cyclictest33-21ksoftirqd/211:09:202
9234993525,5cyclictest33-21ksoftirqd/209:42:492
9233993529,4cyclictest25-21ksoftirqd/109:03:541
9233993529,4cyclictest25-21ksoftirqd/108:53:201
9232993531,2cyclictest9-21ksoftirqd/012:30:010
9232993530,3cyclictest9-21ksoftirqd/009:35:100
9232993530,3cyclictest21482-21cron12:25:000
9232993529,3cyclictest9-21ksoftirqd/009:26:210
9232993528,4cyclictest9-21ksoftirqd/009:49:500
9232993528,4cyclictest9-21ksoftirqd/009:49:500
9235993429,3cyclictest13448-21fschecks_count10:00:143
9235993428,4cyclictest41-21ksoftirqd/310:58:583
9235993428,4cyclictest41-21ksoftirqd/309:16:003
9235993428,4cyclictest41-21ksoftirqd/307:59:213
9235993427,5cyclictest41-21ksoftirqd/311:57:473
9235993427,5cyclictest41-21ksoftirqd/309:42:193
9234993429,3cyclictest33-21ksoftirqd/210:20:002
9234993429,3cyclictest33-21ksoftirqd/209:30:002
9234993429,3cyclictest33-21ksoftirqd/207:25:522
9234993428,4cyclictest33-21ksoftirqd/208:27:122
9234993428,4cyclictest33-21ksoftirqd/208:11:042
9234993428,4cyclictest33-21ksoftirqd/207:30:402
9234993427,4cyclictest33-21ksoftirqd/211:30:172
9233993429,3cyclictest25-21ksoftirqd/110:10:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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