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2026-03-24 - 21:44
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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 a total of 3614 SMIs that occured during the measurement.
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 rack6slot4.osadl.org (updated Tue Mar 24, 2026 13:16:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
"interval":200,6448
"cycles":100000000,6447
"load":"idle",6446
"condition":{6445
"clock":"1100"6443
"family":"x86",6442
"vendor":"Intel",6441
"processor":{6439
"dataset":"2024-01-08T03:36:49+01:00"6437
"origin":"2024-01-08T00:43:22+01:00",6436
"timestamps":{6435
"granularity":"microseconds"6433
"maxima":[6429
"cores":[5221
"latency":{5220
"hostname":"rack6slot4.osadl.org"5218
"system":{5217
"version":"1.0",5214
"format":{5213
"patches":[5204
25706993858,371cyclictest5250irq/9-acpi1
2570699372362,5cyclictest25322-21kworker/1:2+kec_query1
2570299371360,7cyclictest22363-21ssh0
2570299366357,5cyclictest0-21swapper/00
2570699360349,6cyclictest14416-21kworker/1:1+kec_query1
2570299359350,5cyclictest0-21swapper/00
2570299359348,6cyclictest20000-21kworker/0:2+kec_query0
2570699356344,7cyclictest14416-21kworker/1:1+kec_query1
25702993562,348cyclictest0-21swapper/00
2570699355340,6cyclictest25322-21kworker/1:2+kec_query1
25702993541,3cyclictest0-21swapper/00
2570699352340,7cyclictest2275-21kworker/1:2+kec_query1
2570299351340,6cyclictest20000-21kworker/0:2+kec_query0
25702993512,341cyclictest9637-21perl0
2570699350339,6cyclictest14416-21kworker/1:1+kec_query1
25702993501,343cyclictest0-21swapper/00
2570699349338,6cyclictest25322-21kworker/1:2+kec_query1
2570699349337,7cyclictest25322-21kworker/1:2+kec_query1
2570699348337,6cyclictest14416-21kworker/1:1+kec_query1
2570699348336,7cyclictest14416-21kworker/1:1+kec_query1
2570299348338,6cyclictest13514-21ssh0
2570299348336,7cyclictest23127-21apt-get0
25702993482,340cyclictest0-21swapper/00
25702993481,341cyclictest0-21swapper/00
25706993476,4cyclictest5250irq/9-acpi1
2570699347336,6cyclictest25322-21kworker/1:2+kec_query1
2570699347336,6cyclictest14416-21kworker/1:1+kec_query1
2570699347336,6cyclictest14416-21kworker/1:1+kec_query1
2570699347327,15cyclictest14416-21kworker/1:1+kec_query1
2570299347338,5cyclictest0-21swapper/00
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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