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2026-06-19 - 22:12
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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 Fri Jun 19, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
213112229163,22sleep00-21swapper/007:08:270
139491224160,52phc2sys0-21swapper/307:07:053
212372204170,22sleep20-21swapper/207:07:372
211442203171,21sleep10-21swapper/107:06:231
2546321460,6sleep32172499cyclictest09:30:223
564521360,2sleep30-21swapper/312:11:163
1594821300,2sleep02172199cyclictest10:20:130
2172399670,23cyclictest17161-21sed12:35:212
2172399670,23cyclictest17161-21sed12:35:212
2172399661,23cyclictest28232-21/usr/sbin/munin07:20:252
2172399611,25cyclictest1300-21snmpd08:20:372
2172399541,21cyclictest20660-21/usr/sbin/munin10:30:262
139391540,1ptp4l401ktimersoftd/309:40:203
94842530,3sleep20-21swapper/212:20:182
139391530,1ptp4l401ktimersoftd/311:27:333
2172399520,22cyclictest1300-21snmpd10:06:522
2172399520,21cyclictest8228-21chrt10:03:302
2172399510,3cyclictest1300-21snmpd08:05:472
2172399510,20cyclictest32117-21chrt10:52:122
28232490,3sleep20-21swapper/212:05:262
2172399490,3cyclictest4722-21taskset08:48:442
26012480,1sleep20-21swapper/208:44:592
2172399480,20cyclictest13106-21runrttasks10:12:372
139391430,0ptp4l401ktimersoftd/311:42:533
139391430,0ptp4l401ktimersoftd/310:25:313
139391430,0ptp4l401ktimersoftd/307:30:263
139391430,0ptp4l401ktimersoftd/307:22:143
21721994237,2cyclictest9-21ksoftirqd/011:20:000
139391410,0ptp4l401ktimersoftd/309:06:203
134491410,1getstats28822-1kworker/3:2H08:43:543
21721994034,3cyclictest26386-21cron11:50:010
2172399381,23cyclictest21900-21/usr/sbin/munin09:25:172
2172399381,22cyclictest11327-21/usr/sbin/munin07:55:132
2172399380,1cyclictest0-21swapper/211:43:392
2172399380,1cyclictest0-21swapper/211:10:102
21721993833,3cyclictest9-21ksoftirqd/008:10:000
139391380,0ptp4l401ktimersoftd/311:34:583
2172399370,35cyclictest1213-21cron07:35:012
21721993731,4cyclictest9-21ksoftirqd/010:45:420
21721993729,6cyclictest9-21ksoftirqd/007:19:130
21724993631,3cyclictest41-21ksoftirqd/308:32:123
21724993631,3cyclictest41-21ksoftirqd/307:20:003
21724993630,4cyclictest41-21ksoftirqd/311:39:513
21724993630,4cyclictest41-21ksoftirqd/311:22:183
21724993630,4cyclictest41-21ksoftirqd/311:17:373
21724993630,4cyclictest41-21ksoftirqd/309:18:433
21724993630,4cyclictest41-21ksoftirqd/308:19:183
2172399363,20cyclictest0-21swapper/210:47:112
21723993630,4cyclictest33-21ksoftirqd/208:33:332
2172399361,20cyclictest1317-21runrttasks08:57:492
2172399360,22cyclictest10988-21chrt07:54:572
21721993631,3cyclictest9-21ksoftirqd/010:15:190
21721993631,3cyclictest9-21ksoftirqd/010:00:000
21721993630,3cyclictest9-21ksoftirqd/010:04:590
139391360,0ptp4l401ktimersoftd/309:03:113
21724993529,4cyclictest41-21ksoftirqd/311:53:153
21724993529,4cyclictest41-21ksoftirqd/310:34:283
21724993529,4cyclictest41-21ksoftirqd/309:28:293
21723993530,3cyclictest33-21ksoftirqd/209:12:212
21723993529,4cyclictest33-21ksoftirqd/211:30:532
21723993529,4cyclictest33-21ksoftirqd/209:17:572
2172399350,21cyclictest15686-21chrt12:32:512
21722993530,3cyclictest25-21ksoftirqd/110:15:051
21722993530,3cyclictest25-21ksoftirqd/107:45:131
21722993529,4cyclictest25-21ksoftirqd/111:39:491
21722993529,4cyclictest25-21ksoftirqd/109:50:351
21722993529,4cyclictest25-21ksoftirqd/109:36:331
21722993529,4cyclictest25-21ksoftirqd/107:23:361
21721993530,3cyclictest9-21ksoftirqd/011:04:590
21721993530,3cyclictest9-21ksoftirqd/009:15:190
2172199350,2cyclictest121rcu_preempt11:55:270
139391350,0ptp4l401ktimersoftd/307:35:243
21724993430,3cyclictest41-21ksoftirqd/307:15:003
21724993430,2cyclictest41-21ksoftirqd/310:15:003
21724993428,4cyclictest41-21ksoftirqd/312:20:353
21724993428,4cyclictest41-21ksoftirqd/309:46:463
21724993428,4cyclictest41-21ksoftirqd/308:50:003
21724993428,4cyclictest41-21ksoftirqd/308:38:193
21724993428,4cyclictest41-21ksoftirqd/308:28:173
21724993428,4cyclictest41-21ksoftirqd/308:08:303
21723993429,3cyclictest33-21ksoftirqd/210:26:212
21723993429,3cyclictest33-21ksoftirqd/209:57:522
21723993428,4cyclictest33-21ksoftirqd/211:03:562
21723993428,4cyclictest33-21ksoftirqd/210:58:582
21723993428,4cyclictest33-21ksoftirqd/210:43:112
2172399341,4cyclictest13537-21/usr/sbin/munin10:15:242
2172399341,21cyclictest26380-21chrt11:49:582
2172399341,19cyclictest0-21swapper/210:24:432
21722993428,4cyclictest25-21ksoftirqd/111:47:111
21722993428,4cyclictest25-21ksoftirqd/110:25:531
21722993428,4cyclictest25-21ksoftirqd/110:13:041
21722993428,4cyclictest25-21ksoftirqd/110:02:421
21722993428,4cyclictest25-21ksoftirqd/109:58:291
21722993428,4cyclictest25-21ksoftirqd/109:14:311
21721993429,3cyclictest9-21ksoftirqd/010:59:450
21721993429,3cyclictest9-21ksoftirqd/007:14:590
21721993429,3cyclictest17586-21irqrtprio11:30:190
21721993428,4cyclictest9-21ksoftirqd/012:17:550
21721993427,4cyclictest9-21ksoftirqd/012:12:340
139391340,1ptp4l0-21swapper/312:01:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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