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2026-04-16 - 08:58
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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 376 highest latencies:
System rack6slot5.osadl.org (updated Thu Apr 16, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
78779992664814,4441cyclictest6938-21kworker/0:220:47:530
78779992374795,4431cyclictest19517-21kworker/0:120:18:350
78779989504529,4417cyclictest6938-21kworker/0:220:55:140
78779986174491,4115cyclictest6938-21kworker/0:220:39:500
78779985724465,4096cyclictest19517-21kworker/0:119:47:380
78779983174405,3897cyclictest20482-21kworker/0:200:33:440
78779981044200,3890cyclictest31890-21kworker/0:123:04:460
78779978314169,3638cyclictest656-21kworker/0:022:00:400
78779977904124,3615cyclictest29682-21kworker/0:019:35:460
78779977684047,3705cyclictest20482-21kworker/0:200:35:560
78779976964179,3475cyclictest29682-21kworker/0:019:30:520
78779975574010,3487cyclictest29682-21kworker/0:019:17:420
78779973633814,3506cyclictest656-21kworker/0:022:12:020
78779973413915,3410cyclictest31890-21kworker/0:122:37:310
78779972443664,3565cyclictest6938-21kworker/0:221:01:470
78779972333867,3351cyclictest656-21kworker/0:022:24:490
78779971873869,3307cyclictest656-21kworker/0:022:26:240
78779971803744,3413cyclictest17632-21kworker/0:000:20:460
78779971393743,3385cyclictest19517-21kworker/0:120:25:180
78779971273818,3295cyclictest1013-21kworker/0:200:02:030
78779970463669,3353cyclictest1013-21kworker/0:223:49:130
78779968733723,3146cyclictest6938-21kworker/0:220:32:530
78779968183800,3015cyclictest29682-21kworker/0:019:13:080
78779967823671,3100cyclictest19517-21kworker/0:120:11:330
78779966723673,2957cyclictest31890-21kworker/0:122:51:400
78779965373603,2892cyclictest26181-21kworker/0:221:33:040
78779964843593,2875cyclictest26181-21kworker/0:221:21:530
78779964353543,2832cyclictest19517-21kworker/0:119:57:300
78779964243547,2826cyclictest19517-21kworker/0:119:51:490
78779963983448,2935cyclictest1013-21kworker/0:200:18:450
78779963863478,2903cyclictest29682-21kworker/0:019:23:280
78779963393399,2926cyclictest19517-21kworker/0:119:40:540
78779963343447,2872cyclictest656-21kworker/0:021:45:070
78779962833382,2850cyclictest6938-21kworker/0:221:09:380
78779962633381,2867cyclictest24033-21kworker/0:023:33:000
78779960043283,2710cyclictest29682-21kworker/0:019:27:460
78779959843328,2605cyclictest19517-21kworker/0:120:09:570
78779952902998,2277cyclictest656-21kworker/0:021:57:370
78779945334467,53cyclictest31890-21kworker/0:123:06:530
78779943174259,44cyclictest16836-21kworker/0:223:21:390
78779939932153,1825cyclictest6938-21kworker/0:221:12:480
78779938903697,178cyclictest16836-21kworker/0:223:19:450
78779938843800,42cyclictest6938-21kworker/0:220:53:370
78779937221893,1814cyclictest656-21kworker/0:021:35:030
78779935613476,35cyclictest19517-21kworker/0:120:23:420
78779933963300,82cyclictest19517-21kworker/0:120:03:260
66372575184,203sleep00-21swapper19:05:170
78779948834,440cyclictest20997-21diskmemload22:44:150
78779948632,439cyclictest23033-21ssh22:19:230
78779948431,439cyclictest2999-21strings23:50:540
78779948131,439cyclictest20997-21diskmemload21:43:250
78779947531,374cyclictest20997-21diskmemload23:58:550
78779947034,375cyclictest3178-21awk22:45:220
78779946333,361cyclictest20997-21diskmemload22:56:520
78779942020,386cyclictest10466-21python00:06:090
78779941931,374cyclictest19219-21ssh00:25:320
78779941331,368cyclictest29774-21ssh23:40:130
78779940632,360cyclictest25325-21kworker/u2:222:34:140
78779940625,367cyclictest13490-21chrt00:13:360
78779940532,359cyclictest30568-21kworker/u2:321:28:150
78779940346,342cyclictest17391-21ssh23:14:410
78779940238,364cyclictest0-21swapper23:36:040
78779939731,351cyclictest245272sleep023:29:260
78779939131,345cyclictest9509-21cut21:50:460
78779939127,303cyclictest20997-21diskmemload22:05:320
78779938632,339cyclictest20997-21diskmemload21:19:200
78779938135,346cyclictest0-21swapper20:44:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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