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2026-07-15 - 19:24
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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 Wed Jul 15, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
182762205171,23sleep10-21swapper/107:09:271
138591205170,24phc2sys0-21swapper/307:08:413
159392201167,22sleep20-21swapper/207:05:012
160972199167,21sleep00-21swapper/007:05:030
712821620,6sleep11861499cyclictest11:05:221
138491960,73ptp4l0-21swapper/307:10:013
138491790,0ptp4l391rcuc/307:45:233
18616996428,9cyclictest41-21ksoftirqd/309:40:023
18616996330,9cyclictest41-21ksoftirqd/310:10:013
218572610,2sleep20-21swapper/211:35:202
18616996131,7cyclictest41-21ksoftirqd/308:55:283
18616996129,4cyclictest41-21ksoftirqd/312:15:003
18616996128,4cyclictest41-21ksoftirqd/310:40:203
18616996125,9cyclictest41-21ksoftirqd/311:25:243
146732610,6sleep31861699cyclictest08:05:243
18616996030,4cyclictest41-21ksoftirqd/312:30:183
18616996030,4cyclictest41-21ksoftirqd/311:45:003
18616996030,4cyclictest41-21ksoftirqd/311:45:003
18616996028,6cyclictest41-21ksoftirqd/312:05:003
18616996022,7cyclictest41-21ksoftirqd/310:15:173
18616995931,4cyclictest41-21ksoftirqd/309:50:253
18616995929,3cyclictest41-21ksoftirqd/310:30:013
18616995926,4cyclictest41-21ksoftirqd/312:25:233
18616995925,7cyclictest41-21ksoftirqd/311:10:153
18616995924,7cyclictest41-21ksoftirqd/310:05:003
18616995923,5cyclictest41-21ksoftirqd/308:45:143
119162590,2sleep00-21swapper/009:05:180
18616995828,4cyclictest41-21ksoftirqd/312:00:003
18616995827,9cyclictest41-21ksoftirqd/311:10:013
18616995825,4cyclictest41-21ksoftirqd/307:15:153
18616995823,4cyclictest41-21ksoftirqd/309:45:183
18616995726,15cyclictest41-21ksoftirqd/309:40:203
18616995721,4cyclictest41-21ksoftirqd/309:15:253
18616995629,8cyclictest41-21ksoftirqd/308:10:253
18616995626,10cyclictest41-21ksoftirqd/308:05:003
18616995624,7cyclictest41-21ksoftirqd/308:35:143
18616995624,4cyclictest41-21ksoftirqd/307:35:003
18616995526,9cyclictest41-21ksoftirqd/307:25:123
18616995526,7cyclictest41-21ksoftirqd/307:35:153
18616995526,3cyclictest41-21ksoftirqd/310:50:203
18616995525,4cyclictest41-21ksoftirqd/310:35:233
18616995524,8cyclictest41-21ksoftirqd/310:25:013
18616995524,7cyclictest41-21ksoftirqd/309:20:153
18616995524,4cyclictest41-21ksoftirqd/311:50:183
18616995523,8cyclictest41-21ksoftirqd/307:55:003
18616995519,4cyclictest41-21ksoftirqd/307:40:143
18616995518,9cyclictest41-21ksoftirqd/309:05:203
53202540,2sleep00-21swapper/008:50:260
18616995425,9cyclictest41-21ksoftirqd/311:15:183
18616995424,8cyclictest41-21ksoftirqd/311:20:143
18616995423,9cyclictest41-21ksoftirqd/312:20:143
18616995422,8cyclictest41-21ksoftirqd/311:30:163
18616995422,8cyclictest41-21ksoftirqd/309:10:193
18616995422,10cyclictest41-21ksoftirqd/309:25:163
18616995421,3cyclictest41-21ksoftirqd/307:20:243
18616995420,9cyclictest41-21ksoftirqd/310:56:273
18616995322,8cyclictest41-21ksoftirqd/310:10:133
18616995322,7cyclictest41-21ksoftirqd/308:40:173
18616995320,7cyclictest41-21ksoftirqd/312:15:143
18616995320,7cyclictest41-21ksoftirqd/312:15:143
18616995319,7cyclictest41-21ksoftirqd/311:45:173
18616995319,7cyclictest41-21ksoftirqd/309:55:213
1861699526,3cyclictest41-21ksoftirqd/308:20:203
18616995221,4cyclictest41-21ksoftirqd/308:32:303
1861699514,9cyclictest23330-21wc11:40:003
18616995122,7cyclictest41-21ksoftirqd/308:50:203
18616995024,9cyclictest41-21ksoftirqd/312:35:203
18616995021,8cyclictest41-21ksoftirqd/312:05:143
18616995020,8cyclictest41-21ksoftirqd/308:15:153
18616995019,7cyclictest41-21ksoftirqd/309:32:133
18616995016,8cyclictest41-21ksoftirqd/310:45:223
1861699483,9cyclictest41-21ksoftirqd/309:00:233
18616994818,7cyclictest41-21ksoftirqd/310:35:013
1861699477,6cyclictest41-21ksoftirqd/308:25:213
1861699455,5cyclictest41-21ksoftirqd/311:00:133
1861699452,9cyclictest41-21ksoftirqd/307:59:173
18615994332,9cyclictest33-21ksoftirqd/210:47:122
18615994136,3cyclictest223-21systemd-journal07:59:562
18614994134,4cyclictest223-21systemd-journal09:02:391
25352380,1sleep20-21swapper/207:40:232
18615993833,3cyclictest33-21ksoftirqd/207:55:012
1861599380,37cyclictest0-21swapper/209:20:232
18615993731,4cyclictest33-21ksoftirqd/212:10:102
18615993731,4cyclictest33-21ksoftirqd/211:59:112
18614993731,4cyclictest25-21ksoftirqd/112:14:471
18614993731,4cyclictest25-21ksoftirqd/110:36:501
18614993731,4cyclictest25-21ksoftirqd/108:56:541
18614993731,4cyclictest25-21ksoftirqd/107:20:371
18614993730,5cyclictest25-21ksoftirqd/112:29:151
18615993630,4cyclictest33-21ksoftirqd/208:11:042
18614993631,3cyclictest25744-21cron11:45:001
18614993631,3cyclictest25744-21cron11:45:001
18614993631,3cyclictest25-21ksoftirqd/112:34:251
18614993630,4cyclictest25-21ksoftirqd/111:55:571
18614993630,4cyclictest25-21ksoftirqd/110:04:041
18614993630,4cyclictest25-21ksoftirqd/109:29:461
18614993630,4cyclictest25-21ksoftirqd/109:15:181
18614993629,5cyclictest25-21ksoftirqd/112:06:001
18613993630,4cyclictest9-21ksoftirqd/008:55:550
18615993530,3cyclictest33-21ksoftirqd/211:29:292
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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