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2025-08-22 - 00:09
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack0slot8.osadl.org (updated Thu Aug 21, 2025 12:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32743379945854,403cyclictest3211381-21Isolated01:05:238
32743529945445,408cyclictest0-21swapper/1510:50:357
32743529945249,402cyclictest0-21swapper/1507:58:427
32743529945223,428cyclictest0-21swapper/1508:23:347
32743379945213,28cyclictest0-21swapper/211:57:218
32743379945213,28cyclictest0-21swapper/211:57:208
32743379945116,28cyclictest0-21swapper/211:37:218
32743529945049,400cyclictest0-21swapper/1509:33:347
32743529945049,400cyclictest0-21swapper/1509:33:347
32743529945041,408cyclictest0-21swapper/1509:20:377
32743529945026,423cyclictest0-21swapper/1507:33:347
32743529945025,28cyclictest0-21swapper/1508:53:347
32743529944948,400cyclictest0-21swapper/1509:43:347
32743529944948,400cyclictest0-21swapper/1509:43:347
32743529944845,402cyclictest0-21swapper/1510:43:357
32743529944824,28cyclictest0-21swapper/1510:55:507
32743529944824,28cyclictest0-21swapper/1508:41:337
32743369944865,2cyclictest3671841-21Isolated01:05:231
32743529944723,28cyclictest0-21swapper/1511:08:427
32743529944723,28cyclictest0-21swapper/1508:02:377
32743529944646,400cyclictest0-21swapper/1509:53:337
32743369944616,27cyclictest0-21swapper/110:16:581
32743529944543,401cyclictest0-21swapper/1510:06:347
32743519944517,28cyclictest0-21swapper/1407:47:536
32743459944512,28cyclictest0-21swapper/911:27:4515
32743529944340,402cyclictest0-21swapper/1509:47:227
32743519944315,28cyclictest0-21swapper/1412:31:596
32743519943813,28cyclictest0-21swapper/1409:48:366
32743529943513,28cyclictest0-21swapper/1511:04:517
3274349994343,27cyclictest0-21swapper/1311:48:335
3274352994318,28cyclictest0-21swapper/1508:15:347
32743409943110,27cyclictest0-21swapper/508:34:5211
3274351994302,28cyclictest0-21swapper/1409:36:356
3274351994302,28cyclictest0-21swapper/1409:36:346
3274335994300,0cyclictest0-21swapper/007:31:580
32743449942924,404cyclictest0-21swapper/807:23:3414
32743449942924,404cyclictest0-21swapper/807:23:3314
32743379942820,405cyclictest0-21swapper/211:03:328
32743479942721,404cyclictest0-21swapper/1109:30:353
32743479942721,404cyclictest0-21swapper/1109:30:343
327433599427423,4cyclictest0-21swapper/012:29:120
3274352994261,424cyclictest0-21swapper/1511:27:227
32743379942621,404cyclictest0-21swapper/208:15:588
3274352994251,28cyclictest0-21swapper/1511:22:357
327433599425422,3cyclictest0-21swapper/007:23:070
327433599425422,3cyclictest0-21swapper/007:23:070
32743529942422,401cyclictest0-21swapper/1512:32:227
32743399942422,401cyclictest0-21swapper/412:01:5910
32743399942422,401cyclictest0-21swapper/412:01:5810
327433899424422,1cyclictest2595222-21Isolated01:05:239
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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