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2026-03-21 - 21:36
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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 3616 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 100 highest latencies:
System rack6slot4.osadl.org (updated Sat Mar 21, 2026 13:16:27)
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
263699380369,6cyclictest7498-21kworker/1:2+kec_query1
2628993771,368cyclictest21522-21ssh0
263699373362,6cyclictest7457-21kworker/1:0+kec_query1
263699372361,6cyclictest31872-21kworker/1:1+kec_query1
263699368347,16cyclictest20459-21kworker/1:1+kec_query1
263699367346,16cyclictest31872-21kworker/1:1+kec_query1
263699366355,6cyclictest20459-21kworker/1:1+kec_query1
2628993661,6cyclictest8418-21sh0
2628993612,352cyclictest346-21ssh0
2628993611,353cyclictest18742-21ssh0
263699360349,6cyclictest20459-21kworker/1:1+kec_query1
263699358347,6cyclictest20459-21kworker/1:1+kec_query1
263699358346,7cyclictest31872-21kworker/1:1+kec_query1
263699357346,6cyclictest31872-21kworker/1:1+kec_query1
263699357341,7cyclictest7457-21kworker/1:0+kec_query1
263699356345,6cyclictest7498-21kworker/1:2+kec_query1
263699356345,6cyclictest7457-21kworker/1:0+kec_query1
263699356344,7cyclictest20459-21kworker/1:1+kec_query1
263699355344,6cyclictest31872-21kworker/1:1+kec_query1
263699355344,6cyclictest20459-21kworker/1:1+kec_query1
262899355344,6cyclictest31878-21kworker/0:1+kec_query0
263699354342,7cyclictest7498-21kworker/1:2+kec_query1
2636993537,340cyclictest5250irq/9-acpi1
263699353342,6cyclictest31872-21kworker/1:1+kec_query1
263699353342,6cyclictest31872-21kworker/1:1+kec_query1
263699353342,6cyclictest11656-21kworker/1:2+kec_query1
263699353341,7cyclictest20459-21kworker/1:1+kec_query1
263699353340,8cyclictest7457-21kworker/1:0+kec_query1
263699352341,6cyclictest20459-21kworker/1:1+kec_query1
263699352341,6cyclictest20459-21kworker/1:1+kec_query1
263699352340,7cyclictest31872-21kworker/1:1+kec_query1
263699351343,5cyclictest5250irq/9-acpi1
263699351340,6cyclictest7498-21kworker/1:2+kec_query1
263699351340,6cyclictest7498-21kworker/1:2+kec_query1
263699351324,18cyclictest31872-21kworker/1:1+kec_query1
262899351342,5cyclictest0-21swapper/00
2636993506,337cyclictest5250irq/9-acpi1
263699350339,6cyclictest9444-21kworker/1:0+kec_query1
263699350339,6cyclictest7498-21kworker/1:2+kec_query1
263699350339,6cyclictest20459-21kworker/1:1+kec_query1
263699349341,5cyclictest5250irq/9-acpi1
263699349338,6cyclictest31872-21kworker/1:1+kec_query1
263699349337,7cyclictest9444-21kworker/1:0+kec_query1
263699349337,7cyclictest7498-21kworker/1:2+kec_query1
263699349337,7cyclictest31872-21kworker/1:1+kec_query1
262899349340,5cyclictest0-21swapper/00
263699348337,6cyclictest7498-21kworker/1:2+kec_query1
263699348337,6cyclictest7498-21kworker/1:2+kec_query1
263699348337,6cyclictest31872-21kworker/1:1+kec_query1
263699348337,6cyclictest28131-21kworker/1:2+kec_query1
263699348337,6cyclictest20459-21kworker/1:1+kec_query1
263699347336,6cyclictest9444-21kworker/1:0+kec_query1
263699347336,6cyclictest7498-21kworker/1:2+kec_query1
263699347336,6cyclictest31872-21kworker/1:1+kec_query1
263699347335,7cyclictest31872-21kworker/1:1+kec_query1
263699346335,6cyclictest9444-21kworker/1:0+kec_query1
263699346335,6cyclictest7457-21kworker/1:0+kec_query1
263699346335,6cyclictest31872-21kworker/1:1+kec_query1
263699346334,7cyclictest31872-21kworker/1:1+kec_query1
263699346334,6cyclictest31872-21kworker/1:1+kec_query1
2628993462,337cyclictest32092-21apt-get0
2628993461,338cyclictest2147-21ssh0
263699345334,6cyclictest7498-21kworker/1:2+kec_query1
263699345334,6cyclictest31872-21kworker/1:1+kec_query1
263699345334,6cyclictest20459-21kworker/1:1+kec_query1
263699345333,7cyclictest31872-21kworker/1:1+kec_query1
262899345336,5cyclictest0-21swapper/00
262899345336,5cyclictest0-21swapper/00
262899345331,9cyclictest10191-21users0
2628993451,338cyclictest0-21swapper/00
262899344335,5cyclictest0-21swapper/00
262899344330,7cyclictest27292-21diskstats0
2628993441,337cyclictest0-21swapper/00
263699343332,6cyclictest31872-21kworker/1:1+kec_query1
262899343333,6cyclictest0-21swapper/00
2628993431,3cyclictest0-21swapper/00
263699342331,6cyclictest9444-21kworker/1:0+kec_query1
263699342331,6cyclictest31872-21kworker/1:1+kec_query1
262899342333,5cyclictest0-21swapper/00
262899342330,7cyclictest6648-21diskstats0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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