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2026-06-29 - 10:57
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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 Mon Jun 29, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591223163,48phc2sys0-21swapper/319:09:463
239882217173,19sleep10-21swapper/119:05:591
239872205171,22sleep00-21swapper/019:05:580
242992204170,22sleep20-21swapper/219:09:542
2430928162,10sleep10-21swapper/119:10:001
24603997630,4cyclictest33-21ksoftirqd/222:48:082
24604996631,4cyclictest41-21ksoftirqd/300:25:003
24603996628,8cyclictest33-21ksoftirqd/223:15:292
24603996628,8cyclictest33-21ksoftirqd/223:15:292
8492620,3sleep30-21swapper/321:35:233
24603996127,4cyclictest33-21ksoftirqd/220:00:162
24603996118,8cyclictest33-21ksoftirqd/222:40:002
24603996021,4cyclictest33-21ksoftirqd/219:40:282
24603995928,10cyclictest33-21ksoftirqd/223:25:242
24603995921,8cyclictest33-21ksoftirqd/221:10:192
24603995919,4cyclictest33-21ksoftirqd/220:25:242
24603995916,8cyclictest33-21ksoftirqd/221:35:222
24603995823,6cyclictest33-21ksoftirqd/221:45:162
24603995823,4cyclictest33-21ksoftirqd/220:40:242
24603995819,4cyclictest33-21ksoftirqd/222:55:232
24603995723,10cyclictest33-21ksoftirqd/219:25:222
24603995720,4cyclictest33-21ksoftirqd/221:40:242
24603995714,8cyclictest33-21ksoftirqd/221:05:172
24604995621,4cyclictest41-21ksoftirqd/323:55:003
24603995626,10cyclictest33-21ksoftirqd/223:35:002
24603995623,7cyclictest33-21ksoftirqd/222:45:002
24604995525,4cyclictest41-21ksoftirqd/321:00:243
2460399556,8cyclictest33-21ksoftirqd/200:35:152
24603995524,8cyclictest33-21ksoftirqd/219:45:242
24603995522,3cyclictest33-21ksoftirqd/221:30:262
24603995513,9cyclictest33-21ksoftirqd/219:20:142
199672550,5sleep119969-21fschecks_time20:05:161
138491550,1ptp4l401ktimersoftd/323:20:153
138491550,1ptp4l401ktimersoftd/320:23:533
24604995425,6cyclictest41-21ksoftirqd/323:15:143
24604995425,6cyclictest41-21ksoftirqd/323:15:143
24604995423,4cyclictest41-21ksoftirqd/321:15:213
24604995423,3cyclictest41-21ksoftirqd/321:25:263
2460399545,8cyclictest33-21ksoftirqd/222:50:142
24603995419,5cyclictest33-21ksoftirqd/221:55:262
24603995415,9cyclictest33-21ksoftirqd/220:55:182
24604995321,3cyclictest41-21ksoftirqd/322:05:183
24604995321,3cyclictest41-21ksoftirqd/321:55:243
24603995325,9cyclictest33-21ksoftirqd/220:05:132
24603995323,10cyclictest33-21ksoftirqd/223:55:142
24603995320,10cyclictest33-21ksoftirqd/200:25:012
24603995315,8cyclictest33-21ksoftirqd/219:50:232
24603995315,4cyclictest33-21ksoftirqd/220:19:592
24603995314,8cyclictest33-21ksoftirqd/222:30:122
24603995313,9cyclictest33-21ksoftirqd/222:10:182
24603995313,9cyclictest33-21ksoftirqd/222:10:182
24604995220,4cyclictest41-21ksoftirqd/300:10:203
24603995226,11cyclictest33-21ksoftirqd/223:45:012
24603995218,9cyclictest33-21ksoftirqd/219:15:252
24603995218,4cyclictest33-21ksoftirqd/223:04:082
81242510,2sleep00-21swapper/020:45:180
24604995124,7cyclictest41-21ksoftirqd/322:45:173
24604995124,3cyclictest41-21ksoftirqd/322:10:153
24604995124,3cyclictest41-21ksoftirqd/322:10:153
24604995122,3cyclictest41-21ksoftirqd/321:05:153
24604995121,3cyclictest41-21ksoftirqd/322:00:233
24604995121,3cyclictest41-21ksoftirqd/319:35:003
24604995117,4cyclictest41-21ksoftirqd/319:25:163
2460399516,8cyclictest33-21ksoftirqd/220:10:252
2460399515,4cyclictest33-21ksoftirqd/221:50:172
24603995118,4cyclictest33-21ksoftirqd/219:10:172
24603995117,7cyclictest33-21ksoftirqd/220:39:372
254372500,5sleep025438-21irqrtprio22:25:200
24604995022,3cyclictest41-21ksoftirqd/321:40:143
24604995020,4cyclictest41-21ksoftirqd/321:45:243
2460399507,3cyclictest33-21ksoftirqd/221:15:142
2460399506,9cyclictest33-21ksoftirqd/222:20:282
2460399501,9cyclictest33-21ksoftirqd/200:00:242
2460399498,9cyclictest33-21ksoftirqd/223:45:182
2460399498,9cyclictest33-21ksoftirqd/223:45:182
24603994920,8cyclictest33-21ksoftirqd/219:55:162
24603994917,7cyclictest33-21ksoftirqd/200:16:452
24603994917,7cyclictest33-21ksoftirqd/200:16:452
24603994911,4cyclictest33-21ksoftirqd/223:50:192
24604994833,12cyclictest41-21ksoftirqd/320:35:003
24604994821,4cyclictest41-21ksoftirqd/319:40:133
24604994821,3cyclictest41-21ksoftirqd/320:45:133
24604994820,3cyclictest41-21ksoftirqd/320:40:223
24604994817,4cyclictest41-21ksoftirqd/319:55:193
2460399485,9cyclictest33-21ksoftirqd/221:20:282
2460399485,9cyclictest33-21ksoftirqd/221:20:272
24603994821,17cyclictest33-21ksoftirqd/222:25:172
2460399481,8cyclictest33-21ksoftirqd/223:10:202
24603994818,8cyclictest33-21ksoftirqd/222:19:552
2460499473,4cyclictest41-21ksoftirqd/320:25:273
24604994721,3cyclictest41-21ksoftirqd/322:35:243
24604994718,3cyclictest41-21ksoftirqd/323:30:193
24604994716,4cyclictest41-21ksoftirqd/319:45:173
24604994713,3cyclictest41-21ksoftirqd/323:05:143
2460399476,6cyclictest13323-21needreboot00:10:222
2460399476,3cyclictest33-21ksoftirqd/219:30:222
2460399475,5cyclictest33-21ksoftirqd/221:00:132
2460399473,4cyclictest33-21ksoftirqd/220:20:142
24603994734,2cyclictest33-21ksoftirqd/219:35:172
2460399472,5cyclictest33-21ksoftirqd/200:25:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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