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2025-11-22 - 16:53
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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 rack7slot1.osadl.org (updated Sat Nov 22, 2025 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4988211755,56sleep30-21swapper/307:09:283
2082221130,1sleep126316-21stress12:37:281
1362921060,1sleep126316-21stress11:05:401
469429362,26sleep20-21swapper/207:05:482
480028658,23sleep10-21swapper/107:07:091
467028443,18sleep00-21swapper/007:05:300
5156994212,27cyclictest0-21swapper/012:37:330
5156994211,28cyclictest0-21swapper/012:30:310
5156994113,25cyclictest0-21swapper/009:29:550
5156994111,27cyclictest0-21swapper/009:54:010
5161994011,26cyclictest0-21swapper/212:21:242
5156994011,26cyclictest0-21swapper/010:33:560
5161993913,19cyclictest0-21swapper/210:43:332
515699399,27cyclictest0-21swapper/011:07:330
515699399,27cyclictest0-21swapper/010:15:180
515699399,27cyclictest0-21swapper/010:15:180
515699399,27cyclictest0-21swapper/010:12:150
515699399,27cyclictest0-21swapper/010:12:150
5156993915,21cyclictest0-21swapper/012:15:550
5156993915,21cyclictest0-21swapper/012:12:250
5156993914,22cyclictest0-21swapper/011:39:520
5156993912,24cyclictest0-21swapper/012:04:160
5161993816,14cyclictest0-21swapper/211:48:402
5161993815,21cyclictest0-21swapper/210:00:042
5161993813,18cyclictest0-21swapper/211:39:362
5156993815,20cyclictest0-21swapper/011:40:190
5156993813,22cyclictest0-21swapper/012:28:540
5156993810,25cyclictest0-21swapper/010:55:070
18982385,13sleep30-21swapper/308:13:443
99702375,13sleep00-21swapper/007:16:270
83222375,13sleep10-21swapper/108:26:291
5161993716,19cyclictest0-21swapper/210:05:242
5161993715,20cyclictest0-21swapper/211:17:122
5161993715,19cyclictest0-21swapper/212:25:212
5161993715,16cyclictest0-21swapper/212:33:002
515699378,26cyclictest0-21swapper/010:05:250
5156993714,20cyclictest0-21swapper/010:25:010
5156993713,22cyclictest0-21swapper/008:10:150
5156993711,23cyclictest0-21swapper/011:49:440
5156993711,23cyclictest0-21swapper/011:15:100
297312375,13sleep00-21swapper/008:00:370
277122374,13sleep30-21swapper/307:57:443
276242375,13sleep20-21swapper/207:56:382
262242375,13sleep10-21swapper/109:09:551
262242375,13sleep10-21swapper/109:09:551
259742375,13sleep30-21swapper/309:06:533
259742375,13sleep30-21swapper/309:06:533
253552375,13sleep20-21swapper/207:50:442
187792375,13sleep00-21swapper/007:36:030
166232375,13sleep00-21swapper/007:31:250
143942374,13sleep30-21swapper/307:26:083
143942374,13sleep30-21swapper/307:26:083
88972365,13sleep10-21swapper/108:30:091
69342365,13sleep20-21swapper/207:10:432
62562365,12sleep00-21swapper/008:23:140
5169993610,23cyclictest0-21swapper/311:40:403
5161993616,18cyclictest0-21swapper/209:57:482
5161993615,19cyclictest0-21swapper/211:30:152
5161993615,18cyclictest0-21swapper/209:39:442
5161993614,20cyclictest0-21swapper/211:44:292
5161993614,15cyclictest0-21swapper/210:10:372
5161993614,15cyclictest0-21swapper/210:10:372
5161993613,20cyclictest0-21swapper/212:15:272
515799365,20cyclictest0-21swapper/110:37:311
5156993615,18cyclictest0-21swapper/009:59:330
5156993612,21cyclictest0-21swapper/009:15:270
275632365,13sleep10-21swapper/107:55:491
255152365,13sleep10-21swapper/107:52:491
236892365,13sleep00-21swapper/009:00:360
234562365,12sleep00-21swapper/007:49:150
233602364,13sleep30-21swapper/307:48:053
232972365,13sleep10-21swapper/107:47:191
218412365,13sleep00-21swapper/008:59:520
216282365,13sleep10-21swapper/108:57:151
215402364,13sleep30-21swapper/308:56:173
212022365,13sleep10-21swapper/107:43:451
190282364,13sleep30-21swapper/307:38:583
189952365,13sleep20-21swapper/207:38:382
188212365,13sleep10-21swapper/107:36:321
173532365,13sleep20-21swapper/208:48:502
171102365,13sleep00-21swapper/008:45:510
166292365,13sleep10-21swapper/107:31:311
145602365,13sleep10-21swapper/107:28:151
145602365,13sleep10-21swapper/107:28:151
126902365,13sleep20-21swapper/208:35:522
107252365,13sleep30-21swapper/308:33:443
84082355,12sleep00-21swapper/008:27:320
516999359,23cyclictest0-21swapper/310:15:513
516999359,23cyclictest0-21swapper/310:15:513
5161993522,11cyclictest0-21swapper/211:51:422
5161993515,18cyclictest0-21swapper/209:25:252
5161993513,19cyclictest0-21swapper/210:50:302
5161993513,19cyclictest0-21swapper/210:50:292
515799358,25cyclictest0-21swapper/108:50:451
5157993513,20cyclictest0-21swapper/109:39:171
5157993512,20cyclictest0-21swapper/111:10:401
515699359,23cyclictest0-21swapper/011:30:290
5156993516,16cyclictest0-21swapper/010:40:010
5156993516,16cyclictest0-21swapper/009:35:180
5156993514,18cyclictest0-21swapper/011:10:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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