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2026-07-09 - 09:31
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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 Thu Jul 09, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12132223162,50sleep10-21swapper/119:06:461
138591204170,23phc2sys0-21swapper/319:06:053
11622201168,22sleep20-21swapper/219:06:072
12222200168,22sleep00-21swapper/019:06:530
3172121570,7sleep1177599cyclictest20:10:121
22752850,5sleep125-21ksoftirqd/119:10:151
1777996831,8cyclictest41-21ksoftirqd/319:15:003
1777996531,7cyclictest41-21ksoftirqd/320:30:003
1777996433,7cyclictest41-21ksoftirqd/320:50:013
1777996431,4cyclictest41-21ksoftirqd/322:41:223
1777996431,4cyclictest41-21ksoftirqd/322:41:223
1777996430,8cyclictest41-21ksoftirqd/322:16:173
1777996332,4cyclictest41-21ksoftirqd/323:10:153
1777996330,9cyclictest41-21ksoftirqd/322:25:013
177599630,23cyclictest16198-21taskset20:42:571
1777996230,12cyclictest41-21ksoftirqd/322:10:173
1777996230,12cyclictest41-21ksoftirqd/322:10:173
1777996229,5cyclictest41-21ksoftirqd/320:20:193
1777996229,4cyclictest41-21ksoftirqd/323:25:113
1777996229,4cyclictest41-21ksoftirqd/321:35:183
1777996229,4cyclictest41-21ksoftirqd/321:25:233
1777996228,4cyclictest41-21ksoftirqd/321:15:263
1777996227,6cyclictest41-21ksoftirqd/321:40:233
1777996227,6cyclictest41-21ksoftirqd/321:40:233
1777996130,4cyclictest41-21ksoftirqd/320:19:553
1777996128,4cyclictest41-21ksoftirqd/322:00:163
1777996030,8cyclictest41-21ksoftirqd/323:45:243
1777996030,5cyclictest41-21ksoftirqd/321:00:223
1777996030,4cyclictest41-21ksoftirqd/321:20:263
1777996030,11cyclictest41-21ksoftirqd/300:35:123
1777996029,9cyclictest41-21ksoftirqd/319:15:143
1777996029,9cyclictest41-21ksoftirqd/319:15:143
1777996029,7cyclictest41-21ksoftirqd/323:00:133
1777996029,4cyclictest41-21ksoftirqd/322:50:013
1777996027,4cyclictest41-21ksoftirqd/321:00:013
1777996026,9cyclictest41-21ksoftirqd/321:50:193
1777996021,6cyclictest41-21ksoftirqd/319:55:143
1777995938,3cyclictest41-21ksoftirqd/320:40:263
1777995929,4cyclictest41-21ksoftirqd/321:14:593
1777995927,10cyclictest41-21ksoftirqd/319:50:153
1777995926,3cyclictest41-21ksoftirqd/323:20:213
1777995926,10cyclictest41-21ksoftirqd/300:10:013
1777995925,4cyclictest41-21ksoftirqd/323:15:143
1777995925,4cyclictest41-21ksoftirqd/300:03:083
1777995924,7cyclictest41-21ksoftirqd/300:10:133
1777995924,4cyclictest41-21ksoftirqd/319:45:103
1777995923,7cyclictest41-21ksoftirqd/323:40:153
1777995922,4cyclictest41-21ksoftirqd/322:05:243
1777995921,4cyclictest41-21ksoftirqd/322:30:113
1776995917,5cyclictest33-21ksoftirqd/219:35:012
1777995830,4cyclictest41-21ksoftirqd/300:20:283
1777995825,7cyclictest41-21ksoftirqd/323:30:163
1777995825,7cyclictest41-21ksoftirqd/322:55:163
1777995824,8cyclictest41-21ksoftirqd/322:50:253
177762580,1sleep00-21swapper/019:40:180
177599580,23cyclictest18782-21seq21:52:571
1777995729,5cyclictest41-21ksoftirqd/321:59:593
1777995727,9cyclictest41-21ksoftirqd/320:30:103
1777995726,4cyclictest41-21ksoftirqd/321:45:163
1777995724,4cyclictest41-21ksoftirqd/320:35:253
1777995723,8cyclictest41-21ksoftirqd/319:20:183
1777995719,9cyclictest41-21ksoftirqd/300:30:133
1777995631,4cyclictest41-21ksoftirqd/320:10:223
1777995628,4cyclictest41-21ksoftirqd/320:50:133
1777995626,4cyclictest41-21ksoftirqd/300:25:253
1777995625,9cyclictest41-21ksoftirqd/322:25:123
1777995624,4cyclictest41-21ksoftirqd/323:50:243
1776995618,6cyclictest33-21ksoftirqd/200:35:142
1776995614,7cyclictest33-21ksoftirqd/221:35:132
1776995614,5cyclictest33-21ksoftirqd/220:35:182
177599561,23cyclictest9167-21seq19:24:221
1777995530,7cyclictest41-21ksoftirqd/319:40:263
1777995526,3cyclictest41-21ksoftirqd/319:35:163
1777995525,8cyclictest41-21ksoftirqd/321:30:143
1777995525,4cyclictest41-21ksoftirqd/320:05:253
1777995523,9cyclictest41-21ksoftirqd/319:30:143
1777995523,4cyclictest41-21ksoftirqd/323:10:013
1776995516,5cyclictest33-21ksoftirqd/222:10:132
1776995516,5cyclictest33-21ksoftirqd/222:10:132
1776995510,6cyclictest33-21ksoftirqd/223:00:132
177499550,16cyclictest18832-21latency_hist20:50:010
1777995424,5cyclictest41-21ksoftirqd/321:05:253
1777995422,4cyclictest41-21ksoftirqd/319:25:203
1777995419,7cyclictest41-21ksoftirqd/322:35:133
1776995421,3cyclictest33-21ksoftirqd/223:55:182
1776995412,6cyclictest33-21ksoftirqd/220:14:592
177799537,7cyclictest41-21ksoftirqd/323:35:163
1777995321,11cyclictest41-21ksoftirqd/320:05:013
1776995313,6cyclictest33-21ksoftirqd/221:10:182
177599520,23cyclictest811-21taskset21:15:521
1777995128,6cyclictest41-21ksoftirqd/300:15:223
1777995126,3cyclictest41-21ksoftirqd/323:55:173
177599510,22cyclictest19211-21cat00:05:001
177699509,5cyclictest33-21ksoftirqd/200:05:232
177699508,8cyclictest33-21ksoftirqd/223:50:262
1776995013,5cyclictest33-21ksoftirqd/200:30:282
177699500,8cyclictest321ktimersoftd/221:50:002
177599500,23cyclictest30879-21chrt21:11:581
177499506,5cyclictest2223-21tune2fs21:20:160
177699498,8cyclictest33-21ksoftirqd/200:03:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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