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2026-08-22 - 23:06
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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 100 highest latencies:
System rackcslot6.osadl.org (updated Sat Aug 22, 2026 12:46:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
91923624040,12sleep4421ksoftirqd/407:05:264
92006299377375,1cyclictest944919-21kworker/4:112:35:024
92006299377375,1cyclictest926885-21kworker/4:007:45:024
92006299375374,1cyclictest0-21swapper/408:51:024
92006299375374,1cyclictest0-21swapper/408:33:024
92006299374373,1cyclictest944919-21kworker/4:109:53:024
92006299374373,1cyclictest0-21swapper/412:13:024
92006299373372,1cyclictest944919-21kworker/4:111:05:034
92006299373372,1cyclictest0-21swapper/410:25:024
92006299373372,1cyclictest0-21swapper/410:05:024
92006299372371,1cyclictest0-21swapper/412:33:024
92006299372371,1cyclictest0-21swapper/411:55:034
92006299371370,1cyclictest0-21swapper/412:25:024
92006299370368,1cyclictest944919-21kworker/4:108:46:024
92006299370368,1cyclictest0-21swapper/407:35:024
92006299369368,1cyclictest0-21swapper/411:51:024
92006299369368,1cyclictest0-21swapper/408:23:034
92006299369367,1cyclictest944919-21kworker/4:111:11:034
92006299369367,1cyclictest944919-21kworker/4:110:51:024
92006299369367,1cyclictest944919-21kworker/4:109:09:024
92006299369367,1cyclictest0-21swapper/411:32:024
92006299368367,1cyclictest926885-21kworker/4:007:31:024
92006299368366,1cyclictest944919-21kworker/4:110:11:034
92006299368366,1cyclictest944919-21kworker/4:109:47:024
92006299367366,1cyclictest944919-21kworker/4:111:17:024
92006299367366,1cyclictest944919-21kworker/4:110:46:034
92006299367366,1cyclictest0-21swapper/407:24:034
92005499367366,1cyclictest0-21swapper/309:03:023
92006299366365,1cyclictest0-21swapper/411:37:024
92006299366364,2cyclictest944919-21kworker/4:111:20:024
92006299366364,2cyclictest944919-21kworker/4:111:20:024
92006299366364,1cyclictest944919-21kworker/4:108:17:034
92006299366364,1cyclictest0-21swapper/410:42:024
92006299365364,1cyclictest0-21swapper/409:32:034
92006299365363,1cyclictest0-21swapper/410:31:024
92006299364363,1cyclictest0-21swapper/409:28:034
92006299362361,1cyclictest944919-21kworker/4:111:45:034
92006299362361,1cyclictest944919-21kworker/4:110:18:024
92006299361360,1cyclictest944919-21kworker/4:109:24:034
92006299361360,1cyclictest944919-21kworker/4:109:00:024
92006299360359,1cyclictest0-21swapper/410:00:024
92006299360358,1cyclictest944919-21kworker/4:112:04:024
92006299360358,1cyclictest944919-21kworker/4:108:58:024
92006299359357,1cyclictest944919-21kworker/4:110:24:024
92006299358357,1cyclictest944919-21kworker/4:112:08:024
92006299358357,1cyclictest926885-21kworker/4:007:41:024
92006299358357,1cyclictest0-21swapper/410:38:024
92006299358356,1cyclictest944919-21kworker/4:108:41:024
92006299357356,1cyclictest944919-21kworker/4:107:54:034
92006299356355,1cyclictest944919-21kworker/4:111:29:024
92006299356355,1cyclictest944919-21kworker/4:108:12:034
92006299356355,1cyclictest944919-21kworker/4:108:02:024
92006299355354,1cyclictest944919-21kworker/4:109:16:024
92006299355354,1cyclictest0-21swapper/408:38:024
92003599346345,1cyclictest0-21swapper/108:55:021
92003599345344,1cyclictest0-21swapper/109:17:031
92003599345343,1cyclictest0-21swapper/111:27:021
92003599344343,1cyclictest0-21swapper/112:15:021
92003599343342,1cyclictest0-21swapper/111:19:021
92003599343342,1cyclictest0-21swapper/109:45:021
92003599343341,1cyclictest97550irq/166-enp0s3109:07:021
92003599342341,1cyclictest0-21swapper/110:23:031
92003599342341,1cyclictest0-21swapper/108:11:021
92003599341340,1cyclictest0-21swapper/110:55:031
92003599341340,1cyclictest0-21swapper/109:41:021
92003599340339,1cyclictest97550irq/166-enp0s3108:03:021
92003599340339,1cyclictest0-21swapper/110:09:021
92003599340339,1cyclictest0-21swapper/107:11:021
92003599339338,1cyclictest0-21swapper/107:47:021
92003599337336,1cyclictest0-21swapper/111:41:031
92003599337335,1cyclictest97550irq/166-enp0s3109:23:031
92003599336334,1cyclictest97550irq/166-enp0s3111:07:021
92006899335333,1cyclictest913556-21kworker/5:209:17:025
92006899334333,1cyclictest913556-21kworker/5:208:55:025
92003599334332,1cyclictest97550irq/166-enp0s3111:35:021
92003599334332,1cyclictest97550irq/166-enp0s3107:37:021
92003599334332,1cyclictest916894-21kworker/1:210:35:021
92006899333332,1cyclictest1032178-21kworker/5:012:15:025
92003599333331,1cyclictest97550irq/166-enp0s3112:35:021
92003599333330,3cyclictest993061-21kworker/1:109:33:031
92006899332331,1cyclictest1032178-21kworker/5:011:27:025
92006899332331,1cyclictest1032178-21kworker/5:011:19:025
92003599332331,1cyclictest916894-21kworker/1:212:03:021
92003599332331,1cyclictest0-21swapper/110:25:021
92003599332331,1cyclictest0-21swapper/110:03:021
92003599332330,1cyclictest97550irq/166-enp0s3108:51:021
92006899331330,1cyclictest913556-21kworker/5:209:45:025
92006899331330,1cyclictest913556-21kworker/5:208:11:025
92006899331330,1cyclictest1032178-21kworker/5:010:23:025
92006899331329,1cyclictest913556-21kworker/5:209:07:035
92003599331330,1cyclictest916894-21kworker/1:208:37:021
92003599331330,1cyclictest916894-21kworker/1:208:27:021
92003599331330,1cyclictest916894-21kworker/1:207:55:021
92003599331329,1cyclictest97550irq/166-enp0s3108:33:021
92003599331328,3cyclictest993061-21kworker/1:109:27:031
92006899330329,1cyclictest913556-21kworker/5:209:41:025
92006899330328,1cyclictest913556-21kworker/5:208:03:025
92006899330328,1cyclictest1032178-21kworker/5:010:55:025
92003599330329,1cyclictest0-21swapper/112:33:021
92003599330329,1cyclictest0-21swapper/112:25:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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