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2026-09-03 - 02:08
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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 Wed Sep 02, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491208171,25phc2sys0-21swapper/307:08:533
308642206173,22sleep20-21swapper/207:06:142
310232205172,22sleep10-21swapper/107:08:171
309192202169,22sleep00-21swapper/007:06:560
1101421710,7sleep03159899cyclictest12:05:140
1394918564,11phc2sys0-21swapper/307:10:003
284122680,2sleep30-21swapper/308:10:163
31601996027,4cyclictest41-21ksoftirqd/308:10:003
31601995823,7cyclictest41-21ksoftirqd/310:10:123
31601995822,8cyclictest41-21ksoftirqd/310:55:243
31601995728,8cyclictest41-21ksoftirqd/310:15:143
31601995728,8cyclictest41-21ksoftirqd/309:20:003
31601995726,9cyclictest41-21ksoftirqd/308:55:153
31601995726,9cyclictest41-21ksoftirqd/308:55:153
31601995723,8cyclictest41-21ksoftirqd/310:50:003
31601995723,8cyclictest41-21ksoftirqd/308:45:013
31601995720,7cyclictest41-21ksoftirqd/311:05:223
31601995718,8cyclictest41-21ksoftirqd/311:39:033
152332570,4sleep23160099cyclictest11:05:182
31601995628,8cyclictest41-21ksoftirqd/311:15:293
31601995624,7cyclictest41-21ksoftirqd/309:10:123
31601995622,8cyclictest41-21ksoftirqd/308:25:003
31601995621,9cyclictest41-21ksoftirqd/311:45:193
31601995621,7cyclictest41-21ksoftirqd/310:50:153
31601995620,6cyclictest41-21ksoftirqd/310:38:153
218832560,6sleep13159999cyclictest11:20:141
320592550,5sleep23160099cyclictest09:25:172
31601995427,7cyclictest41-21ksoftirqd/310:20:133
31601995423,6cyclictest41-21ksoftirqd/310:40:143
31601995417,7cyclictest41-21ksoftirqd/311:58:573
63102530,3sleep16313-21cpuspeed09:40:131
3160199533,7cyclictest41-21ksoftirqd/309:25:253
31601995323,7cyclictest41-21ksoftirqd/312:34:253
31601995323,7cyclictest41-21ksoftirqd/308:45:263
31601995321,7cyclictest41-21ksoftirqd/309:05:173
31601995319,9cyclictest41-21ksoftirqd/307:38:583
31601995317,7cyclictest41-21ksoftirqd/307:34:123
31601995317,7cyclictest41-21ksoftirqd/307:26:543
3160199526,8cyclictest41-21ksoftirqd/312:10:263
3160199524,7cyclictest41-21ksoftirqd/312:25:143
3160199523,8cyclictest41-21ksoftirqd/312:15:253
3160199516,8cyclictest41-21ksoftirqd/308:00:253
3160199516,4cyclictest41-21ksoftirqd/310:25:193
3160199515,8cyclictest41-21ksoftirqd/307:55:153
3160199515,8cyclictest41-21ksoftirqd/307:55:143
3160199512,5cyclictest41-21ksoftirqd/311:25:253
31601995124,7cyclictest41-21ksoftirqd/308:35:163
31601995120,8cyclictest41-21ksoftirqd/310:00:263
31601995119,8cyclictest41-21ksoftirqd/312:00:233
31601995119,7cyclictest41-21ksoftirqd/308:50:143
31601995118,8cyclictest41-21ksoftirqd/312:20:013
31601995117,8cyclictest41-21ksoftirqd/307:53:473
31601995117,7cyclictest41-21ksoftirqd/308:32:453
320242500,4sleep00-21swapper/011:40:190
3160199506,6cyclictest41-21ksoftirqd/312:10:013
3160199506,6cyclictest41-21ksoftirqd/307:45:193
3160199506,4cyclictest41-21ksoftirqd/307:15:113
3160199505,7cyclictest41-21ksoftirqd/309:40:143
3160199505,10cyclictest41-21ksoftirqd/310:35:013
31601995020,7cyclictest41-21ksoftirqd/309:45:173
3160199496,6cyclictest41-21ksoftirqd/308:25:273
3160199494,7cyclictest41-21ksoftirqd/309:30:143
31601994920,7cyclictest41-21ksoftirqd/309:55:143
3160199486,7cyclictest16864-21expr11:10:143
3160199485,7cyclictest41-21ksoftirqd/312:35:143
3160199480,6cyclictest41-21ksoftirqd/311:20:133
3160199475,9cyclictest41-21ksoftirqd/311:50:133
3160199475,8cyclictest41-21ksoftirqd/308:15:003
3160199475,7cyclictest41-21ksoftirqd/307:40:203
3160199475,6cyclictest41-21ksoftirqd/311:30:223
3160199474,6cyclictest41-21ksoftirqd/310:10:003
3160199473,10cyclictest41-21ksoftirqd/311:00:163
31601994720,7cyclictest41-21ksoftirqd/309:20:243
3160199466,6cyclictest41-21ksoftirqd/309:50:143
3160199466,6cyclictest41-21ksoftirqd/307:20:143
3160199460,13cyclictest41-21ksoftirqd/309:05:003
3160199455,8cyclictest41-21ksoftirqd/309:35:153
31600994539,4cyclictest6937-21idleruntime-cro10:50:002
3160199444,6cyclictest1085-21wc11:45:003
31598994411,3cyclictest9-21ksoftirqd/008:20:010
3160099400,3cyclictest207-21systemd-journal09:45:002
31599994036,2cyclictest25-21ksoftirqd/110:35:011
31599994035,3cyclictest25-21ksoftirqd/112:40:001
31600993928,9cyclictest33-21ksoftirqd/209:20:252
31600993834,2cyclictest854-21sshd11:44:292
31600993825,10cyclictest33-21ksoftirqd/210:30:272
31599993835,2cyclictest25-21ksoftirqd/110:55:011
31599993833,3cyclictest25-21ksoftirqd/112:15:011
31598993834,2cyclictest9-21ksoftirqd/012:20:000
31598993832,4cyclictest26142-21turbostat.cron11:30:000
31600993725,11cyclictest33-21ksoftirqd/209:20:012
31599993732,3cyclictest25-21ksoftirqd/110:35:121
31599993731,4cyclictest25-21ksoftirqd/112:24:281
31599993731,4cyclictest25-21ksoftirqd/109:52:371
31599993731,4cyclictest25-21ksoftirqd/108:06:251
31598993732,3cyclictest9-21ksoftirqd/008:10:010
31598993729,5cyclictest9-21ksoftirqd/011:00:110
31600993631,3cyclictest33-21ksoftirqd/209:35:112
31600993630,4cyclictest33-21ksoftirqd/211:48:352
31600993630,4cyclictest33-21ksoftirqd/211:13:292
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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