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2026-05-08 - 14:28
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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 Fri May 08, 2026 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
116682224197,18sleep20-21swapper/219:07:572
962922070,4sleep19358-21execl19:05:091
1105122050,7sleep310163-21execl19:05:243
115902201168,22sleep00-21swapper/019:07:110
2665121700,6sleep11217499cyclictest19:25:591
69982750,3sleep0111rcuc/019:18:580
167022730,4sleep35492-21spawn19:19:453
12176996830,9cyclictest41-21ksoftirqd/323:00:183
12176996629,8cyclictest41-21ksoftirqd/319:27:173
12176996530,4cyclictest41-21ksoftirqd/300:04:593
12176996528,10cyclictest41-21ksoftirqd/319:23:003
113282650,3sleep125-21ksoftirqd/119:23:281
12176996432,4cyclictest41-21ksoftirqd/319:35:243
12176996428,4cyclictest41-21ksoftirqd/320:55:013
12176996423,7cyclictest41-21ksoftirqd/321:45:243
12176996321,8cyclictest41-21ksoftirqd/320:35:243
68932620,3sleep26902-21spawn19:19:202
12176996231,7cyclictest41-21ksoftirqd/322:15:273
12176996229,10cyclictest41-21ksoftirqd/322:40:003
12176996221,7cyclictest41-21ksoftirqd/323:55:283
12176996130,3cyclictest41-21ksoftirqd/323:25:263
12176996129,4cyclictest41-21ksoftirqd/321:40:153
12176996129,4cyclictest41-21ksoftirqd/321:40:143
12176996127,5cyclictest41-21ksoftirqd/322:00:133
12176996121,8cyclictest41-21ksoftirqd/322:40:193
12176996121,8cyclictest41-21ksoftirqd/322:40:193
12176996031,6cyclictest41-21ksoftirqd/321:26:083
12176996027,4cyclictest41-21ksoftirqd/320:45:243
12176996024,4cyclictest41-21ksoftirqd/320:19:293
130772590,2sleep2311rcuc/219:24:582
12176995928,8cyclictest41-21ksoftirqd/323:10:133
12176995928,8cyclictest41-21ksoftirqd/323:10:133
12176995927,4cyclictest41-21ksoftirqd/300:10:003
12176995924,8cyclictest41-21ksoftirqd/321:30:153
12176995827,7cyclictest41-21ksoftirqd/322:20:233
12176995824,8cyclictest41-21ksoftirqd/300:30:153
12176995824,7cyclictest41-21ksoftirqd/323:40:003
12176995823,8cyclictest41-21ksoftirqd/321:55:193
12176995823,8cyclictest41-21ksoftirqd/319:30:223
12176995823,7cyclictest41-21ksoftirqd/323:40:143
12176995823,7cyclictest41-21ksoftirqd/323:40:133
12176995822,8cyclictest41-21ksoftirqd/323:20:263
12176995817,8cyclictest41-21ksoftirqd/323:19:453
12176995721,9cyclictest41-21ksoftirqd/323:50:203
187322560,3sleep118751-21spawn19:18:551
12176995625,3cyclictest41-21ksoftirqd/300:20:003
12176995624,8cyclictest41-21ksoftirqd/319:10:163
12176995623,7cyclictest41-21ksoftirqd/323:30:253
12176995622,7cyclictest41-21ksoftirqd/323:05:143
12176995622,4cyclictest41-21ksoftirqd/322:30:153
12176995621,4cyclictest41-21ksoftirqd/321:15:173
12176995523,10cyclictest41-21ksoftirqd/320:40:243
12176995523,10cyclictest41-21ksoftirqd/320:40:243
12176995427,4cyclictest41-21ksoftirqd/320:10:183
12176995427,4cyclictest41-21ksoftirqd/320:10:183
12176995424,10cyclictest41-21ksoftirqd/319:50:013
12176995423,7cyclictest41-21ksoftirqd/320:05:193
12176995422,8cyclictest41-21ksoftirqd/300:15:003
12176995422,7cyclictest41-21ksoftirqd/300:15:243
12176995421,9cyclictest41-21ksoftirqd/319:50:013
1217699538,2cyclictest41-21ksoftirqd/320:30:273
12176995326,9cyclictest41-21ksoftirqd/322:05:163
12176995326,3cyclictest41-21ksoftirqd/320:00:163
12176995322,9cyclictest41-21ksoftirqd/300:35:213
12176995319,7cyclictest41-21ksoftirqd/322:30:013
12176995319,10cyclictest41-21ksoftirqd/321:50:243
12176995221,7cyclictest41-21ksoftirqd/300:20:163
12176995220,6cyclictest41-21ksoftirqd/320:20:153
12176995218,8cyclictest41-21ksoftirqd/319:42:063
12176995124,9cyclictest41-21ksoftirqd/321:20:143
12176995124,4cyclictest41-21ksoftirqd/320:25:213
12176995121,9cyclictest41-21ksoftirqd/322:55:203
24682500,1sleep22471-21tee19:25:262
1217699506,7cyclictest41-21ksoftirqd/320:55:143
1217699492,9cyclictest41-21ksoftirqd/322:50:133
12176994920,8cyclictest41-21ksoftirqd/323:45:183
12176994919,9cyclictest41-21ksoftirqd/300:25:153
1217699486,2cyclictest41-21ksoftirqd/322:10:213
1217699486,2cyclictest41-21ksoftirqd/322:10:213
1217699484,10cyclictest41-21ksoftirqd/321:35:263
1217699483,6cyclictest41-21ksoftirqd/321:00:223
1217699476,6cyclictest41-21ksoftirqd/321:05:183
1217699473,2cyclictest121rcu_preempt20:00:003
12176994718,6cyclictest41-21ksoftirqd/322:45:123
12176994637,3cyclictest41-21ksoftirqd/321:10:213
12176994637,3cyclictest41-21ksoftirqd/321:10:213
12175994438,4cyclictest10059-21cron20:55:012
223162430,1sleep10-21swapper/123:35:011
12173994339,2cyclictest9-21ksoftirqd/019:22:390
12175994135,4cyclictest13938-21cron00:25:002
12173994137,2cyclictest21982-21sshd23:33:180
12173994132,7cyclictest9-21ksoftirqd/019:25:230
12175994034,4cyclictest551-21rs:main2
12173994035,3cyclictest9-21ksoftirqd/022:40:000
12173993935,3cyclictest9-21ksoftirqd/023:20:000
57898380,4rtkit-daemon10539-21df_abs23:10:150
57898380,4rtkit-daemon10539-21df_abs23:10:140
12175993833,3cyclictest33-21ksoftirqd/219:39:592
12173993833,3cyclictest9-21ksoftirqd/020:40:000
1217499372,32cyclictest207-21systemd-journal21:27:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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