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2026-07-13 - 23:31
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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 rackdslot3.osadl.org (updated Mon Jul 13, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
124542208142,21sleep00-21swapper/007:06:010
139491207172,23phc2sys0-21swapper/307:09:493
127432207173,23sleep20-21swapper/207:09:412
126762204170,22sleep10-21swapper/107:08:561
908221280,1sleep30-21swapper/309:15:223
13062996432,4cyclictest33-21ksoftirqd/211:30:202
13062996429,6cyclictest33-21ksoftirqd/208:55:282
165622630,7sleep31306399cyclictest09:30:223
139391630,1ptp4l401ktimersoftd/311:27:073
13062996230,10cyclictest33-21ksoftirqd/212:15:142
13062996223,8cyclictest33-21ksoftirqd/207:25:012
13062996220,8cyclictest33-21ksoftirqd/209:00:132
13062996126,4cyclictest33-21ksoftirqd/208:40:252
13062996126,4cyclictest33-21ksoftirqd/208:40:242
13062996123,7cyclictest33-21ksoftirqd/211:45:292
13062996121,7cyclictest33-21ksoftirqd/207:30:272
13062996121,7cyclictest33-21ksoftirqd/207:10:222
13062996120,6cyclictest33-21ksoftirqd/209:45:252
13062996026,4cyclictest33-21ksoftirqd/210:10:252
13062996022,7cyclictest33-21ksoftirqd/210:35:202
13062996021,5cyclictest33-21ksoftirqd/210:40:252
308822590,3sleep00-21swapper/011:10:000
13062995931,4cyclictest33-21ksoftirqd/208:30:142
13062995928,7cyclictest33-21ksoftirqd/210:30:222
13062995928,4cyclictest33-21ksoftirqd/209:20:252
13062995925,7cyclictest33-21ksoftirqd/211:20:152
13062995829,4cyclictest33-21ksoftirqd/208:45:142
13062995829,4cyclictest33-21ksoftirqd/208:45:142
13062995829,3cyclictest33-21ksoftirqd/207:25:282
13062995827,4cyclictest33-21ksoftirqd/211:50:242
13062995827,4cyclictest33-21ksoftirqd/210:15:242
13062995827,10cyclictest33-21ksoftirqd/207:40:182
13062995824,9cyclictest33-21ksoftirqd/211:15:212
13062995824,9cyclictest33-21ksoftirqd/211:15:202
13062995823,6cyclictest33-21ksoftirqd/212:30:012
13062995819,6cyclictest33-21ksoftirqd/209:30:142
13062995818,7cyclictest33-21ksoftirqd/208:35:282
13062995728,9cyclictest33-21ksoftirqd/212:30:242
13062995727,3cyclictest33-21ksoftirqd/209:50:182
13062995726,5cyclictest33-21ksoftirqd/209:35:152
13062995722,6cyclictest33-21ksoftirqd/209:15:002
13062995721,6cyclictest33-21ksoftirqd/208:15:152
13062995721,5cyclictest33-21ksoftirqd/208:25:122
13062995718,11cyclictest33-21ksoftirqd/209:15:252
13062995627,5cyclictest33-21ksoftirqd/210:50:252
13062995627,3cyclictest33-21ksoftirqd/210:05:292
13062995626,4cyclictest33-21ksoftirqd/207:55:212
13062995624,9cyclictest33-21ksoftirqd/211:40:252
13062995623,9cyclictest33-21ksoftirqd/209:55:192
13062995623,4cyclictest33-21ksoftirqd/211:05:252
13062995619,7cyclictest33-21ksoftirqd/209:05:232
13062995528,3cyclictest33-21ksoftirqd/211:00:002
13062995524,5cyclictest33-21ksoftirqd/211:55:202
13062995520,5cyclictest33-21ksoftirqd/208:05:122
22462540,1sleep30-21swapper/307:55:143
13062995428,6cyclictest33-21ksoftirqd/212:25:012
13062995424,10cyclictest33-21ksoftirqd/212:10:262
13062995417,5cyclictest33-21ksoftirqd/209:40:192
13062995324,9cyclictest33-21ksoftirqd/208:20:142
13062995324,9cyclictest33-21ksoftirqd/207:45:142
13062995323,9cyclictest33-21ksoftirqd/210:45:272
13062995218,6cyclictest33-21ksoftirqd/208:50:262
13062995217,5cyclictest33-21ksoftirqd/207:15:232
13062995217,4cyclictest33-21ksoftirqd/208:00:252
13062995210,3cyclictest33-21ksoftirqd/210:25:002
13062995126,4cyclictest33-21ksoftirqd/211:10:152
13062995121,3cyclictest33-21ksoftirqd/211:39:012
13062995119,3cyclictest33-21ksoftirqd/211:00:262
139391500,1ptp4l391rcuc/311:38:073
1306299504,6cyclictest33-21ksoftirqd/208:10:132
13062995023,7cyclictest33-21ksoftirqd/212:00:242
13062995014,5cyclictest33-21ksoftirqd/209:25:172
13062995014,3cyclictest33-21ksoftirqd/210:02:422
1306299493,7cyclictest33-21ksoftirqd/212:35:232
1306299493,6cyclictest33-21ksoftirqd/210:25:252
13062994920,8cyclictest33-21ksoftirqd/207:50:182
13062994920,5cyclictest33-21ksoftirqd/207:35:142
1306299487,8cyclictest33-21ksoftirqd/211:25:262
13063994640,3cyclictest207-21systemd-journal10:15:003
58722450,5sleep00-21swapper/008:00:250
139391450,1ptp4l401ktimersoftd/310:22:583
139391440,1ptp4l0-21swapper/310:53:433
13061994412,4cyclictest25-21ksoftirqd/108:35:181
1306299435,5cyclictest33-21ksoftirqd/212:09:592
57898420,12rtkit-daemon1453-21gpm10:20:590
139391420,0ptp4l401ktimersoftd/312:03:403
139391420,0ptp4l401ktimersoftd/307:33:013
13061994236,3cyclictest25-21ksoftirqd/110:00:001
57898410,13rtkit-daemon17906-21apache207:40:240
139391410,0ptp4l401ktimersoftd/309:44:553
13061994036,2cyclictest447-21cut07:50:201
13061993833,3cyclictest25-21ksoftirqd/108:20:011
134491370,1getstats0-21swapper/308:54:423
13063993732,3cyclictest41-21ksoftirqd/310:55:423
13061993732,3cyclictest25-21ksoftirqd/111:20:001
13061993732,3cyclictest25-21ksoftirqd/111:20:001
13061993724,11cyclictest25-21ksoftirqd/107:10:181
13063993630,4cyclictest41-21ksoftirqd/310:38:223
13063993630,4cyclictest41-21ksoftirqd/307:24:173
13063993615,20cyclictest15028-21kworker/3:107:54:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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