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2026-03-18 - 12:35
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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 50 highest latencies:
System rack7slot1.osadl.org (updated Wed Mar 18, 2026 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
524521370,0sleep323296-21stress22:59:523
524521370,0sleep323296-21stress22:59:523
1533121360,0sleep323296-21stress00:38:373
2918421240,1sleep323299-21stress22:40:013
3390211956,23sleep30-21swapper/319:07:233
330121190,1sleep223296-21stress21:36:052
3509211453,56sleep00-21swapper/019:08:530
3389211252,20sleep20-21swapper/219:07:222
3352211151,55sleep10-21swapper/119:06:531
3699994127,12cyclictest0-21swapper/321:52:573
3699994014,23cyclictest0-21swapper/323:49:093
25152400,1sleep323299-21stress00:08:443
3699993914,22cyclictest0-21swapper/322:13:343
3699993815,21cyclictest0-21swapper/323:20:253
3699993815,20cyclictest0-21swapper/322:06:353
369899384,31cyclictest0-21swapper/223:50:302
3698993815,20cyclictest0-21swapper/221:44:382
3697993810,25cyclictest0-21swapper/122:35:161
212572385,13sleep30-21swapper/319:47:133
170232385,13sleep30-21swapper/319:37:273
60222375,13sleep00-21swapper/020:28:160
39092375,13sleep20-21swapper/219:10:032
3699993716,18cyclictest0-21swapper/321:26:033
3699993715,19cyclictest0-21swapper/323:35:393
3699993714,20cyclictest0-21swapper/321:16:033
3699993714,20cyclictest0-21swapper/321:16:033
3699993714,20cyclictest0-21swapper/300:21:453
3698993715,20cyclictest0-21swapper/221:59:542
3696993713,22cyclictest0-21swapper/022:00:010
319362375,13sleep30-21swapper/320:12:513
298062375,13sleep30-21swapper/320:07:543
214312375,13sleep00-21swapper/019:49:270
187342375,13sleep20-21swapper/220:57:132
145492375,13sleep20-21swapper/220:48:152
127522375,13sleep30-21swapper/319:27:323
123242375,13sleep30-21swapper/320:41:583
106272375,13sleep30-21swapper/319:22:273
83092365,13sleep10-21swapper/119:15:271
3699993615,18cyclictest0-21swapper/322:01:073
3699993615,18cyclictest0-21swapper/321:36:283
3699993613,20cyclictest0-21swapper/321:40:573
3699993613,20cyclictest0-21swapper/300:15:433
369899369,24cyclictest0-21swapper/222:25:042
369899369,24cyclictest0-21swapper/222:25:042
3698993614,19cyclictest0-21swapper/223:56:292
3696993616,17cyclictest0-21swapper/023:51:290
3696993612,21cyclictest0-21swapper/022:47:420
276382365,12sleep20-21swapper/220:02:122
276382365,12sleep20-21swapper/220:02:122
207152365,13sleep10-21swapper/121:00:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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