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2026-04-11 - 07:14
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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 Apr 11, 2026 00:46:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
294484099362361,1cyclictest0-21swapper/521:53:025
294484099360357,2cyclictest3226979-21ssh23:59:015
294484099359358,1cyclictest0-21swapper/521:27:025
294484099359357,1cyclictest3078817-21kworker/5:200:06:025
294484099357356,1cyclictest0-21swapper/500:03:015
294484099356355,1cyclictest0-21swapper/523:51:025
294484099356355,1cyclictest0-21swapper/523:01:025
294484099356355,1cyclictest0-21swapper/500:24:025
294484099355354,1cyclictest0-21swapper/523:29:025
294484099355354,1cyclictest0-21swapper/523:17:015
294484099355354,1cyclictest0-21swapper/500:28:025
294484099354353,1cyclictest0-21swapper/522:23:015
294484099354352,1cyclictest3213238-21ssh23:47:025
294484099354352,1cyclictest0-21swapper/523:12:015
294484099353352,1cyclictest0-21swapper/522:40:025
294484099353352,1cyclictest0-21swapper/522:25:025
294484099352351,1cyclictest3078817-21kworker/5:222:58:025
294484099352351,1cyclictest0-21swapper/521:15:025
294484099352351,1cyclictest0-21swapper/520:40:025
294484099352351,1cyclictest0-21swapper/519:50:025
294484099351350,1cyclictest3078817-21kworker/5:222:54:025
294484099351350,1cyclictest2941676-21kworker/5:021:13:015
294484099351350,1cyclictest0-21swapper/521:21:025
294484099351349,1cyclictest2941676-21kworker/5:021:37:015
294484099351349,1cyclictest2941676-21kworker/5:019:40:025
294484099351349,1cyclictest0-21swapper/523:33:025
294484099351349,1cyclictest0-21swapper/520:25:025
294484099350349,1cyclictest0-21swapper/521:03:025
294484099350349,1cyclictest0-21swapper/520:21:015
294484099350348,1cyclictest3078817-21kworker/5:223:07:025
294484099350348,1cyclictest3078817-21kworker/5:222:47:025
294484099350348,1cyclictest3078817-21kworker/5:222:31:025
294484099350348,1cyclictest3078817-21kworker/5:222:31:015
294484099350348,1cyclictest3078817-21kworker/5:222:11:025
294484099350348,1cyclictest2941676-21kworker/5:021:58:025
294484099349347,1cyclictest3078817-21kworker/5:223:24:025
294484099348347,1cyclictest0-21swapper/519:33:025
294484099347346,1cyclictest3078817-21kworker/5:200:38:015
294484099347346,1cyclictest3078817-21kworker/5:200:13:025
294484099347345,1cyclictest3078817-21kworker/5:200:18:025
294484099347345,1cyclictest0-21swapper/519:49:025
294484099346345,1cyclictest3078817-21kworker/5:200:32:025
294484099346345,1cyclictest0-21swapper/520:52:025
294484099346345,1cyclictest0-21swapper/520:11:025
294484099346345,1cyclictest0-21swapper/519:17:025
294484099346344,1cyclictest3078817-21kworker/5:223:40:025
294484099345344,1cyclictest3078817-21kworker/5:222:08:015
294484099345344,1cyclictest3078817-21kworker/5:222:00:015
294484099345343,1cyclictest2941676-21kworker/5:020:57:025
294484099345343,1cyclictest2941676-21kworker/5:020:35:025
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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