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2026-05-02 - 04:03
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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 Sat May 02, 2026 00:46:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2165867993810,380cyclictest0-21swapper/423:39:024
216583599380378,1cyclictest0-21swapper/021:49:020
216586799378376,1cyclictest2243984-21kworker/4:222:23:034
216583599378376,1cyclictest2153677-21kworker/0:219:15:020
216583599374372,1cyclictest0-21swapper/022:38:020
216583599373372,1cyclictest2153677-21kworker/0:221:01:020
216583599373372,1cyclictest0-21swapper/021:41:020
216583599373372,1cyclictest0-21swapper/021:22:030
216583599373371,1cyclictest2356893-21kworker/0:100:27:030
216583599373371,1cyclictest2238833-21diskmemload22:57:030
216583599373371,1cyclictest0-21swapper/000:11:020
216583599372371,1cyclictest0-21swapper/000:04:030
216583599372370,1cyclictest0-21swapper/023:23:020
216583599372370,1cyclictest0-21swapper/021:39:020
216583599371370,1cyclictest0-21swapper/022:48:030
216583599371369,2cyclictest2356893-21kworker/0:123:28:030
216583599371369,1cyclictest2153677-21kworker/0:222:43:020
216583599370369,1cyclictest2356893-21kworker/0:100:05:020
216583599370369,1cyclictest0-21swapper/021:28:030
216583599370369,1cyclictest0-21swapper/020:00:020
216583599370368,1cyclictest2153677-21kworker/0:222:27:020
216583599369368,1cyclictest2153677-21kworker/0:222:21:030
216583599369368,1cyclictest2153677-21kworker/0:221:57:020
216583599369368,1cyclictest0-21swapper/023:17:020
216583599369367,1cyclictest0-21swapper/019:55:020
216583599368367,1cyclictest2356893-21kworker/0:123:36:020
216583599368367,1cyclictest2356893-21kworker/0:122:54:030
216583599368367,1cyclictest2153677-21kworker/0:222:10:020
216583599368367,1cyclictest0-21swapper/023:49:020
216583599368367,1cyclictest0-21swapper/021:50:030
216583599368367,1cyclictest0-21swapper/021:05:020
216583599368366,1cyclictest2356893-21kworker/0:123:08:020
216583599368366,1cyclictest0-21swapper/000:18:020
216583599367366,1cyclictest0-21swapper/021:33:020
216583599366365,1cyclictest2153677-21kworker/0:220:10:030
216583599366365,1cyclictest0-21swapper/020:44:030
216583599366365,1cyclictest0-21swapper/019:25:020
216588299365361,2cyclictest0-21swapper/621:49:026
216583599365364,1cyclictest2153677-21kworker/0:221:11:020
216583599365363,1cyclictest0-21swapper/020:33:020
216588299363361,1cyclictest0-21swapper/621:55:026
216586799363361,1cyclictest0-21swapper/421:49:024
216583599363362,1cyclictest0-21swapper/020:52:030
216583599363360,2cyclictest0-21swapper/019:43:030
216588299362361,1cyclictest0-21swapper/622:03:026
216583599362361,1cyclictest0-21swapper/020:47:030
216583599362360,1cyclictest2153677-21kworker/0:220:16:020
216583599362360,1cyclictest2153677-21kworker/0:219:53:020
216586799361359,1cyclictest0-21swapper/419:15:034
216583599361360,1cyclictest2153677-21kworker/0:220:06:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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