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2025-10-18 - 20:35
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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 Sat Oct 18, 2025 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7035211854,58sleep10-21swapper/107:08:131
6902210850,53sleep20-21swapper/207:06:372
710228961,23sleep30-21swapper/307:09:043
694928456,23sleep00-21swapper/007:07:130
7286994011,26cyclictest0-21swapper/109:47:071
277432400,1sleep127989-21stress10:20:491
728899397,29cyclictest0-21swapper/311:15:353
7287993914,22cyclictest0-21swapper/210:30:402
728699399,27cyclictest0-21swapper/109:59:441
7288993810,25cyclictest0-21swapper/312:15:053
728699389,26cyclictest0-21swapper/110:43:361
728699389,26cyclictest0-21swapper/110:43:351
728699389,26cyclictest0-21swapper/109:12:171
7286993816,19cyclictest0-21swapper/109:50:501
255552385,13sleep20-21swapper/209:02:592
166812385,13sleep20-21swapper/208:41:102
145212385,16sleep20-21swapper/208:36:212
728899377,27cyclictest0-21swapper/310:46:033
728899377,27cyclictest0-21swapper/310:46:023
7288993716,18cyclictest0-21swapper/312:08:343
728799378,26cyclictest0-21swapper/211:28:082
728699377,26cyclictest0-21swapper/110:05:141
728699377,26cyclictest0-21swapper/110:05:141
7286993710,25cyclictest0-21swapper/109:36:541
7286993710,24cyclictest0-21swapper/111:35:251
7286993710,24cyclictest0-21swapper/109:24:041
7285993712,22cyclictest0-21swapper/012:24:460
60502375,13sleep20-21swapper/208:20:012
231192375,13sleep20-21swapper/207:42:362
187222375,13sleep00-21swapper/007:32:300
16892375,13sleep20-21swapper/208:09:542
167382375,13sleep00-21swapper/007:29:550
15902375,13sleep30-21swapper/308:08:383
90892365,13sleep10-21swapper/107:11:031
81892365,13sleep00-21swapper/008:24:230
80382364,13sleep30-21swapper/308:22:303
7287993613,20cyclictest0-21swapper/209:41:172
728699367,26cyclictest0-21swapper/111:40:091
7286993615,18cyclictest0-21swapper/112:15:221
7286993614,19cyclictest0-21swapper/111:15:311
7286993614,19cyclictest0-21swapper/110:50:311
7286993614,19cyclictest0-21swapper/110:00:531
7285993613,20cyclictest0-21swapper/009:12:330
37472365,13sleep10-21swapper/108:13:331
318782365,13sleep10-21swapper/108:03:521
295982364,13sleep30-21swapper/307:57:123
276112365,13sleep20-21swapper/207:54:312
210012365,13sleep00-21swapper/008:50:410
120472364,13sleep30-21swapper/307:16:053
91382355,13sleep00-21swapper/007:11:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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