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2026-03-27 - 06:30
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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 rackdslot4.osadl.org (updated Fri Mar 27, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
203982202169,22sleep10-21swapper/119:08:591
138591202169,22phc2sys0-21swapper/319:05:463
201282197165,21sleep00-21swapper/019:05:330
203992196163,22sleep20-21swapper/219:09:012
926521390,7sleep02077099cyclictest22:20:290
138491690,1ptp4l391rcuc/319:15:273
189642620,7sleep3401ktimersoftd/321:15:133
2077399540,16cyclictest1319-21snmpd23:45:383
138491520,1ptp4l391rcuc/320:50:213
2077399480,14cyclictest31293-21ls00:10:203
2077399470,11cyclictest29378-21irqstats20:30:213
20772994712,13cyclictest0-21swapper/223:09:042
20771994741,3cyclictest20831-21dump-pmu-power21:20:001
215612460,1sleep10-21swapper/120:15:211
2077399460,15cyclictest7483-21/usr/sbin/munin23:25:133
2077399450,11cyclictest28933-21cstates21:35:133
2077399440,17cyclictest10061-21latency_hist00:35:013
154592440,2sleep10-21swapper/122:35:141
138491440,0ptp4l401ktimersoftd/322:00:543
20772994315,27cyclictest0-21swapper/223:45:232
138491420,0ptp4l401ktimersoftd/319:57:103
138491420,0ptp4l401ktimersoftd/319:32:203
138491420,0ptp4l401ktimersoftd/319:32:203
138491420,0ptp4l401ktimersoftd/300:28:223
20771994118,21cyclictest4169-21kworker/1:119:50:241
2047824132,3sleep20-21swapper/219:10:002
138491410,0ptp4l401ktimersoftd/322:06:333
20773994012,27cyclictest18018-21kworker/3:319:42:543
2077399400,7cyclictest31196-21df20:35:143
50798390,3rtkit-daemon21601-21smart_sda22:45:251
20772993932,5cyclictest33-21ksoftirqd/221:38:232
20772993932,5cyclictest33-21ksoftirqd/219:42:112
20773993831,4cyclictest41-21ksoftirqd/300:09:233
20772993831,4cyclictest33-21ksoftirqd/219:18:462
20771993830,6cyclictest25-21ksoftirqd/123:37:241
20771993830,5cyclictest25-21ksoftirqd/120:59:421
20772993731,4cyclictest33-21ksoftirqd/223:13:222
20772993731,4cyclictest33-21ksoftirqd/222:59:462
20772993731,4cyclictest33-21ksoftirqd/221:45:572
20772993730,4cyclictest33-21ksoftirqd/219:53:322
20772993725,10cyclictest33-21ksoftirqd/222:35:002
2077199379,27cyclictest0-21swapper/119:40:241
20771993732,3cyclictest25750-21cron21:30:001
20771993731,4cyclictest25-21ksoftirqd/120:42:491
20770993730,4cyclictest9-21ksoftirqd/022:35:330
20773993630,4cyclictest41-21ksoftirqd/322:22:163
20772993630,4cyclictest33-21ksoftirqd/222:44:022
20772993629,4cyclictest33-21ksoftirqd/220:22:532
20772993629,4cyclictest33-21ksoftirqd/220:05:402
20772993629,4cyclictest33-21ksoftirqd/219:33:352
20772993629,4cyclictest33-21ksoftirqd/219:33:342
20772993629,4cyclictest33-21ksoftirqd/200:15:422
20771993629,5cyclictest25-21ksoftirqd/123:02:091
20771993629,5cyclictest25-21ksoftirqd/122:05:541
20771993629,5cyclictest25-21ksoftirqd/100:12:141
20770993630,4cyclictest9-21ksoftirqd/023:36:390
20770993629,4cyclictest9-21ksoftirqd/021:59:110
20770993629,4cyclictest9-21ksoftirqd/019:28:350
20770993629,4cyclictest9-21ksoftirqd/019:28:350
20773993530,3cyclictest41-21ksoftirqd/323:17:123
20773993529,4cyclictest41-21ksoftirqd/321:27:163
20773993529,4cyclictest41-21ksoftirqd/321:25:013
20773993529,4cyclictest41-21ksoftirqd/321:08:313
20772993530,3cyclictest33-21ksoftirqd/222:04:062
20772993529,4cyclictest33-21ksoftirqd/222:49:542
20772993529,3cyclictest33-21ksoftirqd/221:43:222
20772993528,5cyclictest33-21ksoftirqd/223:57:182
20772993528,4cyclictest33-21ksoftirqd/200:25:222
20771993529,3cyclictest25-21ksoftirqd/121:30:101
20770993530,3cyclictest9-21ksoftirqd/022:06:090
20770993529,4cyclictest9-21ksoftirqd/023:58:160
20770993529,4cyclictest9-21ksoftirqd/021:36:160
20770993529,4cyclictest9-21ksoftirqd/020:36:470
20770993529,4cyclictest9-21ksoftirqd/000:35:320
20770993529,3cyclictest9-21ksoftirqd/022:11:380
20770993528,4cyclictest9-21ksoftirqd/022:02:280
20770993528,4cyclictest9-21ksoftirqd/000:14:020
20770993527,5cyclictest9-21ksoftirqd/022:35:000
20773993429,3cyclictest41-21ksoftirqd/323:50:393
20773993429,3cyclictest41-21ksoftirqd/322:55:013
20773993429,3cyclictest41-21ksoftirqd/321:50:513
20773993428,4cyclictest41-21ksoftirqd/322:34:353
20773993428,4cyclictest41-21ksoftirqd/319:20:093
20773993428,4cyclictest41-21ksoftirqd/300:04:263
20773993427,4cyclictest41-21ksoftirqd/323:30:523
20773993427,4cyclictest41-21ksoftirqd/322:45:433
20773993427,4cyclictest41-21ksoftirqd/319:45:113
20773993427,4cyclictest41-21ksoftirqd/319:14:543
20772993429,3cyclictest33-21ksoftirqd/220:47:142
20772993428,4cyclictest33-21ksoftirqd/223:38:142
20772993428,4cyclictest33-21ksoftirqd/221:02:162
20772993428,4cyclictest33-21ksoftirqd/220:35:042
20772993428,4cyclictest33-21ksoftirqd/219:45:342
20772993427,4cyclictest33-21ksoftirqd/222:35:552
20772993427,4cyclictest33-21ksoftirqd/200:13:242
20772993413,19cyclictest0-21swapper/223:40:232
20772993412,19cyclictest7151-21seq22:15:592
20772993412,19cyclictest22244-21latency_hist23:55:012
20771993429,3cyclictest25-21ksoftirqd/123:10:101
20771993428,4cyclictest25-21ksoftirqd/120:28:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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