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2026-06-30 - 14:21
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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 rackcslot6.osadl.org (updated Tue Jun 30, 2026 00:46:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
260073899390389,1cyclictest2643675-21kworker/3:122:19:023
260071399368367,1cyclictest0-21swapper/022:43:020
260076699367365,1cyclictest0-21swapper/722:19:027
260071399367365,1cyclictest0-21swapper/000:02:020
260071399366364,1cyclictest0-21swapper/000:09:020
260071399365364,1cyclictest0-21swapper/023:47:030
260071399365363,1cyclictest0-21swapper/022:49:030
260071399365362,1cyclictest0-21swapper/023:30:020
260071399363362,1cyclictest0-21swapper/000:22:030
260071399363362,1cyclictest0-21swapper/000:18:030
260071399362360,1cyclictest2891365-21kworker/0:121:36:020
260071399362360,1cyclictest2891365-21kworker/0:100:32:020
260071399361360,1cyclictest2891365-21kworker/0:123:53:030
260071399361360,1cyclictest0-21swapper/023:41:030
260071399361360,1cyclictest0-21swapper/022:17:020
260071399360358,1cyclictest0-21swapper/019:15:030
260075899358357,1cyclictest0-21swapper/622:08:026
260071399358357,1cyclictest2891365-21kworker/0:123:24:020
260071399357356,1cyclictest2891365-21kworker/0:120:25:020
260071399357355,1cyclictest0-21swapper/022:38:020
260073899356355,1cyclictest2643675-21kworker/3:122:07:023
260071399356355,1cyclictest0-21swapper/022:04:020
260071399356354,1cyclictest0-21swapper/022:24:030
260071399356354,1cyclictest0-21swapper/021:31:020
260071399355354,1cyclictest2891365-21kworker/0:100:36:020
260071399355354,1cyclictest0-21swapper/022:06:030
260071399355354,1cyclictest0-21swapper/021:54:020
260071399355354,1cyclictest0-21swapper/021:23:020
260071399355353,1cyclictest2891365-21kworker/0:122:32:020
260071399353352,1cyclictest0-21swapper/020:20:020
260071399352351,1cyclictest0-21swapper/020:10:020
260071399352351,1cyclictest0-21swapper/019:45:020
260073899351350,1cyclictest0-21swapper/300:25:023
260071399351350,1cyclictest2891365-21kworker/0:121:57:020
260071399350349,1cyclictest2891365-21kworker/0:123:17:030
260071399350349,1cyclictest0-21swapper/020:43:030
260071399350348,1cyclictest2891365-21kworker/0:123:02:020
260071399349348,1cyclictest2891365-21kworker/0:123:56:020
260071399349348,1cyclictest2891365-21kworker/0:100:11:020
260073899348347,1cyclictest2643675-21kworker/3:123:07:023
260073899348347,1cyclictest0-21swapper/322:58:023
260073899348347,1cyclictest0-21swapper/300:08:023
260075899347346,1cyclictest2830894-21kworker/6:123:39:026
260075899347346,1cyclictest2664706-21kworker/6:022:22:026
260075899347345,1cyclictest0-21swapper/621:35:026
260073899347346,1cyclictest0-21swapper/323:21:023
260073899347346,1cyclictest0-21swapper/322:33:023
260073899347346,1cyclictest0-21swapper/321:16:033
260073899347345,1cyclictest0-21swapper/321:43:023
260073899347345,1cyclictest0-21swapper/321:28:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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