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2026-05-10 - 13:12
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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 rackdslot4.osadl.org (updated Sun May 10, 2026 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591208174,23phc2sys0-21swapper/319:07:343
94762206172,22sleep10-21swapper/119:09:591
92032204170,22sleep00-21swapper/019:06:310
91532203170,22sleep20-21swapper/219:05:532
947828262,10sleep30-21swapper/319:10:013
977499619,10cyclictest9748-21ls23:30:003
977499606,16cyclictest15360-21cut22:35:183
977499598,9cyclictest26972-21dump-pmu-power00:05:003
288552570,7sleep1977299cyclictest23:00:241
977499558,8cyclictest31423-21grep20:55:283
977499556,11cyclictest20524-21sed23:50:173
977499543,9cyclictest0-21swapper/321:20:173
977499533,17cyclictest0-21swapper/322:00:143
977499505,8cyclictest728-21date22:05:203
977499503,16cyclictest0-21swapper/323:45:163
227762500,2sleep10-21swapper/119:35:171
213992490,6sleep3977499cyclictest22:45:263
977499489,14cyclictest18350-21needreboot22:40:203
977499487,15cyclictest2315-21gnome-shell21:35:583
977499486,15cyclictest21296-21timerandwakeup19:30:253
977499477,16cyclictest2315-21gnome-shell23:14:583
977499477,15cyclictest2315-21gnome-shell21:13:593
977499477,15cyclictest2315-21gnome-shell00:16:583
977499476,8cyclictest18680-21mailstats19:25:233
977499475,17cyclictest9560-21/usr/sbin/munin22:25:123
977499467,15cyclictest5124-21/usr/sbin/munin00:25:203
977499465,7cyclictest2446-21appstreamcli21:05:023
977499465,15cyclictest14762-21cat20:25:133
977499462,16cyclictest0-21swapper/323:05:163
977499454,7cyclictest3050-21ps23:15:203
977499454,7cyclictest14851-21apt-get23:40:103
977499453,15cyclictest0-21swapper/323:30:243
977499445,8cyclictest4555-21apt-get23:20:023
977499445,7cyclictest7114-21apt-get22:20:113
977499445,7cyclictest2138-21apt-get22:10:123
977499444,8cyclictest4640-21apt-get22:15:113
977499444,8cyclictest22904-21ps21:45:193
977299441,40cyclictest11746-21perf20:20:001
977499437,16cyclictest27124-21/usr/sbin/munin21:55:203
977499424,7cyclictest29445-21apt-get00:10:013
977499423,8cyclictest26475-21ls22:55:273
138491420,0ptp4l401ktimersoftd/300:34:043
977499414,15cyclictest24697-21/usr/sbin/munin20:45:243
977499404,7cyclictest28378-21ls00:05:203
977499404,7cyclictest28378-21ls00:05:203
977499404,7cyclictest15193-21diskstats19:20:153
9773994035,3cyclictest33-21ksoftirqd/223:00:012
9772994031,6cyclictest25-21ksoftirqd/121:55:001
9772994028,3cyclictest25-21ksoftirqd/123:59:591
977299400,2cyclictest121rcu_preempt21:00:001
977499392,16cyclictest0-21swapper/319:55:253
9772993934,3cyclictest25-21ksoftirqd/120:25:221
138491390,0ptp4l401ktimersoftd/320:19:013
977499384,14cyclictest27205-21/usr/sbin/munin20:50:153
9773993832,3cyclictest29135-21kworker/2:023:20:002
9772993833,3cyclictest25-21ksoftirqd/120:00:001
9772993832,3cyclictest25-21ksoftirqd/122:45:011
9771993832,3cyclictest9-21ksoftirqd/022:45:000
9773993730,4cyclictest33-21ksoftirqd/222:13:072
9773993730,4cyclictest33-21ksoftirqd/200:23:022
9772993733,2cyclictest25-21ksoftirqd/100:05:001
9772993732,3cyclictest25-21ksoftirqd/123:25:011
9772993732,3cyclictest25-21ksoftirqd/123:00:001
9772993732,3cyclictest25-21ksoftirqd/121:05:011
9772993731,4cyclictest25-21ksoftirqd/100:05:551
9772993731,4cyclictest25-21ksoftirqd/100:05:551
977499363,14cyclictest18437-21ps20:30:233
9773993631,3cyclictest33-21ksoftirqd/222:45:132
9773993631,3cyclictest33-21ksoftirqd/219:30:102
9772993631,3cyclictest25-21ksoftirqd/123:40:161
9772993631,3cyclictest25-21ksoftirqd/122:50:001
9772993631,3cyclictest25-21ksoftirqd/122:25:001
9772993631,3cyclictest25-21ksoftirqd/120:40:131
9772993631,3cyclictest25-21ksoftirqd/119:34:591
9772993631,3cyclictest25-21ksoftirqd/100:25:141
9772993630,4cyclictest25-21ksoftirqd/121:14:061
9772993630,4cyclictest25-21ksoftirqd/119:22:211
9772993630,3cyclictest25-21ksoftirqd/123:15:121
9771993631,3cyclictest9-21ksoftirqd/019:42:290
9771993630,4cyclictest9-21ksoftirqd/020:00:560
9771993630,4cyclictest9-21ksoftirqd/019:52:210
9771993629,4cyclictest9-21ksoftirqd/021:46:550
977499355,12cyclictest13985-21ls21:25:233
9774993529,4cyclictest41-21ksoftirqd/319:19:103
9773993530,3cyclictest33-21ksoftirqd/223:53:122
9773993530,3cyclictest33-21ksoftirqd/219:19:462
9773993529,4cyclictest33-21ksoftirqd/223:41:022
9773993529,4cyclictest33-21ksoftirqd/221:25:062
9773993529,4cyclictest33-21ksoftirqd/220:15:342
9773993529,4cyclictest33-21ksoftirqd/219:54:162
9773993529,4cyclictest33-21ksoftirqd/219:49:182
9773993529,4cyclictest33-21ksoftirqd/219:49:172
9773993529,4cyclictest33-21ksoftirqd/200:12:552
9772993531,3cyclictest25-21ksoftirqd/122:30:191
9772993530,3cyclictest25-21ksoftirqd/123:45:181
9772993530,3cyclictest25-21ksoftirqd/122:55:001
9772993530,3cyclictest25-21ksoftirqd/122:19:591
9772993530,3cyclictest25-21ksoftirqd/121:30:131
9772993530,3cyclictest25-21ksoftirqd/121:30:001
9772993530,3cyclictest25-21ksoftirqd/120:10:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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