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2026-05-03 - 18:50
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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 rack0slot7.osadl.org (updated Sun May 03, 2026 00:46:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
193817399412412,0cyclictest1921058-21kworker/u40:1+events_unbound19:52:271
193818099378378,0cyclictest2114845-21kworker/u40:0+events_unbound22:51:1913
193819399297297,0cyclictest99250irq/154-snd_hda_intel:card122:42:1116
193819799294288,5cyclictest13400-21Renderer19:10:0117
193820399288283,5cyclictest13400-21Renderer21:27:4819
193819399288283,5cyclictest13400-21Renderer22:28:5116
193820399287283,3cyclictest13400-21Renderer21:45:4519
193820199287283,3cyclictest13400-21Renderer22:04:1618
193819799287283,4cyclictest13400-21Renderer23:06:0317
193819799287283,4cyclictest13400-21Renderer20:13:5617
193818399287282,5cyclictest13400-21Renderer21:51:3914
193817799287282,5cyclictest13400-21Renderer00:39:2812
193817099287283,3cyclictest13400-21Renderer20:12:450
193817099287281,5cyclictest13400-21Renderer21:20:020
193820399286282,4cyclictest13400-21Renderer19:38:1819
193820399286282,4cyclictest13400-21Renderer00:25:5119
193820399286282,3cyclictest13400-21Renderer20:48:0819
193820399286282,3cyclictest13400-21Renderer19:25:1519
193820399286282,3cyclictest13400-21Renderer00:22:3719
193820399286280,5cyclictest13400-21Renderer22:46:3619
193820199286281,5cyclictest13400-21Renderer00:35:3418
193819799286282,4cyclictest13400-21Renderer00:21:0417
193819399286283,3cyclictest13400-21Renderer21:31:2516
193819399286282,4cyclictest13400-21Renderer21:48:3116
193819399286282,4cyclictest13400-21Renderer21:05:1116
193819399286282,4cyclictest13400-21Renderer19:46:4716
193819399286282,4cyclictest13400-21Renderer00:08:5116
193819399286282,3cyclictest13400-21Renderer21:43:2816
193818899286282,4cyclictest13400-21Renderer19:39:0915
193818899286281,5cyclictest13400-21Renderer22:39:0215
193818399286282,3cyclictest13400-21Renderer21:16:2814
193818099286282,3cyclictest13400-21Renderer22:38:5313
193818099286281,4cyclictest13400-21Renderer21:01:0513
193818099286281,4cyclictest13400-21Renderer21:01:0413
193817799286282,4cyclictest13400-21Renderer22:27:0312
193817799286282,3cyclictest13400-21Renderer23:30:5512
193817399286282,3cyclictest13400-21Renderer22:24:091
193817399286282,3cyclictest13400-21Renderer21:43:501
193817099286282,3cyclictest13400-21Renderer23:31:320
193817099286282,3cyclictest13400-21Renderer00:14:580
193817099286281,4cyclictest13400-21Renderer23:25:470
193820399285282,3cyclictest13400-21Renderer20:54:0419
193820399285281,3cyclictest13400-21Renderer22:33:2719
193820399285280,4cyclictest13400-21Renderer22:10:2419
193820199285282,3cyclictest13400-21Renderer21:15:4918
193820199285279,5cyclictest13400-21Renderer00:18:2718
193819799285282,3cyclictest13400-21Renderer22:25:2117
193819799285282,3cyclictest13400-21Renderer20:41:5417
193819799285282,3cyclictest13400-21Renderer00:37:3317
193819799285281,4cyclictest13400-21Renderer19:27:0417
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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