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2026-04-10 - 15:44
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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
Characteristics of the 376 highest latencies:
System rack6slot6 (updated Fri Apr 10, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271399910703253469,53440cyclictest1994-21sendmail07:44:120
271399910698853448,53416cyclictest31821-21ssh12:02:060
271399910668653385,53238cyclictest31975-21kworker/0:209:54:590
271399910668353482,53201cyclictest0-21swapper11:50:330
271399910665653453,53203cyclictest0-21swapper11:13:120
271399910664853474,53084cyclictest9-21ksoftirqd/010:46:440
271399910662753392,53169cyclictest0-21swapper09:44:460
271399910661853418,53200cyclictest0-21swapper08:09:090
271399910661253470,53051cyclictest9-21ksoftirqd/009:14:080
271399910660253460,53076cyclictest0-21swapper10:15:550
271399910658253285,53284cyclictest20403-21ssh10:57:170
271399910657453479,53095cyclictest0-21swapper07:16:340
271399910654153383,53067cyclictest0-21swapper10:28:190
271399910650853472,53036cyclictest0-21swapper08:34:360
271399910650553412,53027cyclictest0-21swapper09:24:410
271399910648553463,53022cyclictest0-21swapper10:06:430
271399910648153450,53031cyclictest0-21swapper08:43:290
271399910646353448,53015cyclictest0-21swapper10:32:300
271399910645953452,53007cyclictest0-21swapper08:51:210
271399910645653449,53007cyclictest0-21swapper11:36:290
271399910645353403,53050cyclictest0-21swapper10:52:160
271399910644253397,53045cyclictest0-21swapper08:35:570
271399910641753431,52986cyclictest0-21swapper08:48:100
271399910637153471,52900cyclictest0-21swapper07:47:230
271399910636653392,52911cyclictest10-21rcuc/009:05:550
271399910634453383,52895cyclictest0-21swapper08:15:310
271399910628853466,52758cyclictest10-21rcuc/008:02:170
271399910626353422,52750cyclictest0-21swapper07:35:090
271399910626253388,52809cyclictest0-21swapper08:26:240
271399910619253481,52711cyclictest0-21swapper09:02:140
271399910617353454,52719cyclictest0-21swapper07:21:050
271399910512152901,52218cyclictest25297-21ssh09:29:220
271399910509753000,52095cyclictest0-21swapper10:23:580
271399910503852911,52125cyclictest0-21swapper10:11:040
271399910501752927,52088cyclictest0-21swapper11:46:110
27139995407453422,531cyclictest10508-21ssh12:19:110
27139995396853412,490cyclictest0-21swapper08:56:530
27139995356253386,176cyclictest0-21swapper07:53:540
27139995336725,0cyclictest0-21swapper11:34:380
27139995325025,53225cyclictest0-21swapper11:22:250
27139995277525,52750cyclictest0-21swapper07:33:190
271399922931089,1076cyclictest24132-21ssh12:39:370
271399922411033,1187cyclictest10560-21ssh10:42:530
271399922241019,1205cyclictest8069-21ssh10:39:520
271399921131071,921cyclictest0-21swapper12:09:480
271399920961043,1014cyclictest28058-21ssh11:56:140
271399920941038,989cyclictest9-21ksoftirqd/009:47:070
271399920821031,1017cyclictest0-21swapper08:21:520
271399920701075,902cyclictest0-21swapper11:15:020
271399920551017,1017cyclictest0-21swapper12:20:310
271399920131001,974cyclictest8573-21ssh11:27:560
271399920001037,870cyclictest0-21swapper07:56:050
271399919981056,818cyclictest2099-21runrttasks11:08:000
271399919941034,867cyclictest0-21swapper12:29:240
27139991977960,982cyclictest0-21swapper08:14:100
27139991961978,969cyclictest0-21swapper12:33:550
27139991951979,938cyclictest5350irq/9-uhci_hcd:10:03:520
27139991923924,965cyclictest0-21swapper09:15:080
271399918921052,745cyclictest134850irq/9-eth009:33:330
271399918861041,783cyclictest0-21swapper07:25:360
271399918701035,776cyclictest0-21swapper09:36:340
27139991868912,942cyclictest0-21swapper11:03:590
27139991855950,880cyclictest13241-21ssh09:59:210
27139991687938,712cyclictest7003-21ssh12:13:490
271399916821091,591cyclictest0-21swapper11:44:010
271399915421057,485cyclictest0-21swapper07:11:320
26652255286,239sleep00-21swapper07:08:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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