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2026-08-15 - 03:55
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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 Sat Aug 15, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
246872207173,22sleep30-21swapper/319:07:243
245362202169,21sleep00-21swapper/019:05:330
245992200167,22sleep20-21swapper/219:06:152
246902199166,22sleep10-21swapper/119:07:261
1882421450,6sleep32518599cyclictest23:15:243
2518499672,62cyclictest19700-21turbostat20:05:002
2518399620,21cyclictest22336-21date21:15:001
70162610,2sleep10-21swapper/122:55:001
242042570,5sleep024209-21unixbench_multi20:10:270
138491550,1ptp4l401ktimersoftd/319:52:323
148692510,3sleep32518599cyclictest22:05:123
109272500,2sleep20-21swapper/221:55:202
230592490,2sleep30-21swapper/321:15:173
25184994842,3cyclictest4410-21ls23:54:592
262192440,1sleep10-21swapper/121:20:221
262192440,1sleep10-21swapper/121:20:211
2518399440,42cyclictest0-21swapper/121:25:231
25185994315,26cyclictest17143-21kworker/3:120:15:233
138491430,0ptp4l401ktimersoftd/320:54:553
138491430,0ptp4l401ktimersoftd/319:25:503
25185994228,12cyclictest41-21ksoftirqd/320:25:003
2518399420,2cyclictest0-21swapper/100:12:421
138491420,0ptp4l401ktimersoftd/322:35:253
138491420,0ptp4l401ktimersoftd/321:45:163
138491420,0ptp4l401ktimersoftd/321:08:323
138491420,0ptp4l401ktimersoftd/320:45:173
138491420,0ptp4l401ktimersoftd/320:03:333
135191410,1getstats0-21swapper/321:12:513
25184993932,5cyclictest33-21ksoftirqd/200:25:002
25184993932,5cyclictest33-21ksoftirqd/200:24:592
138491390,0ptp4l401ktimersoftd/319:46:373
25185993832,4cyclictest41-21ksoftirqd/320:34:413
2518499380,1cyclictest0-21swapper/223:49:022
2518399380,36cyclictest0-21swapper/120:50:231
25185993731,4cyclictest41-21ksoftirqd/320:37:023
25184993732,3cyclictest33-21ksoftirqd/223:10:122
25184993731,4cyclictest33-21ksoftirqd/222:18:432
25184993731,4cyclictest33-21ksoftirqd/220:42:182
25183993732,3cyclictest25-21ksoftirqd/119:25:111
25183993730,5cyclictest25-21ksoftirqd/122:18:461
25182993732,3cyclictest4773-21cron21:45:000
50798360,2rtkit-daemon0-21swapper/200:19:232
25185993631,3cyclictest41-21ksoftirqd/319:20:353
25185993629,5cyclictest41-21ksoftirqd/323:12:483
25184993631,3cyclictest33-21ksoftirqd/223:35:102
25184993630,4cyclictest33-21ksoftirqd/221:42:282
25184993630,4cyclictest33-21ksoftirqd/221:23:062
25184993630,4cyclictest33-21ksoftirqd/221:23:062
25184993630,4cyclictest33-21ksoftirqd/219:26:282
25184993630,4cyclictest33-21ksoftirqd/200:32:532
25184993629,5cyclictest33-21ksoftirqd/221:35:542
25183993630,4cyclictest25-21ksoftirqd/121:55:071
25183993630,4cyclictest25-21ksoftirqd/120:59:401
25183993629,5cyclictest25-21ksoftirqd/123:17:551
25182993631,3cyclictest30159-21fschecks_count22:35:160
25185993529,4cyclictest41-21ksoftirqd/323:07:493
25184993529,4cyclictest33-21ksoftirqd/222:20:472
25184993529,4cyclictest33-21ksoftirqd/221:19:532
25184993529,4cyclictest33-21ksoftirqd/221:08:182
25184993529,4cyclictest33-21ksoftirqd/220:55:302
25184993529,4cyclictest33-21ksoftirqd/219:36:042
25183993530,3cyclictest25-21ksoftirqd/123:55:091
25183993529,4cyclictest25-21ksoftirqd/122:37:511
25183993529,4cyclictest25-21ksoftirqd/120:13:571
25182993531,2cyclictest19591-21dump-pmu-power00:25:000
25182993531,2cyclictest19591-21dump-pmu-power00:25:000
25182993529,4cyclictest9-21ksoftirqd/023:13:290
25182993529,4cyclictest9-21ksoftirqd/022:41:440
25182993529,4cyclictest9-21ksoftirqd/022:32:290
25182993529,4cyclictest9-21ksoftirqd/021:07:280
25182993529,4cyclictest9-21ksoftirqd/020:35:340
25182993529,4cyclictest9-21ksoftirqd/000:37:050
138491350,28ptp4l35792irq/125-enp1s0-22:30:113
138491350,0ptp4l401ktimersoftd/320:40:173
25185993429,3cyclictest41-21ksoftirqd/323:00:013
25185993428,4cyclictest41-21ksoftirqd/322:17:523
25185993428,4cyclictest41-21ksoftirqd/322:03:113
25185993428,4cyclictest41-21ksoftirqd/321:55:573
25185993428,4cyclictest41-21ksoftirqd/319:44:593
25185993428,4cyclictest41-21ksoftirqd/300:15:383
25184993429,3cyclictest33-21ksoftirqd/223:21:212
25184993429,3cyclictest33-21ksoftirqd/220:46:242
25184993429,3cyclictest33-21ksoftirqd/220:05:072
25184993429,3cyclictest33-21ksoftirqd/219:19:082
25184993428,4cyclictest33-21ksoftirqd/222:28:262
25184993428,4cyclictest33-21ksoftirqd/222:11:252
25184993428,4cyclictest33-21ksoftirqd/222:03:302
25184993428,4cyclictest33-21ksoftirqd/220:35:132
25184993428,4cyclictest33-21ksoftirqd/219:41:382
25184993427,4cyclictest33-21ksoftirqd/220:12:302
25183993429,3cyclictest25-21ksoftirqd/121:40:121
25183993429,3cyclictest25-21ksoftirqd/121:30:401
25183993428,4cyclictest25-21ksoftirqd/123:54:541
25183993428,4cyclictest25-21ksoftirqd/121:47:531
25183993428,4cyclictest25-21ksoftirqd/121:00:511
25183993428,4cyclictest25-21ksoftirqd/120:35:431
25183993427,4cyclictest25-21ksoftirqd/119:39:391
2518399341,20cyclictest1303-21runrttasks19:32:521
25182993429,3cyclictest9-21ksoftirqd/019:45:010
25182993428,4cyclictest9-21ksoftirqd/021:26:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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