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2026-04-07 - 13:53
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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 3620 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 Tue Apr 07, 2026 01:16:19)
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
1578199393382,6cyclictest6930-21kworker/1:1+kec_query1
1578199385373,7cyclictest6930-21kworker/1:1+kec_query1
1578199372361,6cyclictest6930-21kworker/1:1+kec_query1
1578199371364,4cyclictest5250irq/9-acpi1
1578199370358,7cyclictest6930-21kworker/1:1+kec_query1
1577999370359,6cyclictest20719-21kworker/0:2+kec_query0
1578199368357,6cyclictest9545-21kworker/1:2+kec_query1
1577999362350,7cyclictest25295-21expr0
1578199361354,4cyclictest5250irq/9-acpi1
1578199361349,7cyclictest6930-21kworker/1:1+kec_query1
1578199359348,6cyclictest6930-21kworker/1:1+kec_query1
1578199358348,6cyclictest5250irq/9-acpi1
1578199356346,6cyclictest5250irq/9-acpi1
1578199355348,4cyclictest5250irq/9-acpi1
1578199355345,6cyclictest5250irq/9-acpi1
1578199354343,6cyclictest6930-21kworker/1:1+kec_query1
1578199354343,6cyclictest6930-21kworker/1:1+kec_query1
1578199353342,6cyclictest9545-21kworker/1:2+kec_query1
1578199353342,6cyclictest6930-21kworker/1:1+kec_query1
1578199353333,15cyclictest6930-21kworker/1:1+kec_query1
1578199352343,5cyclictest5250irq/9-acpi1
1577999352328,18cyclictest1958-21fw_packets0
15779993522,343cyclictest30617-21ssh0
1578199351344,4cyclictest5250irq/9-acpi1
1578199351343,5cyclictest5250irq/9-acpi1
1578199351343,5cyclictest5250irq/9-acpi1
15781993496,337cyclictest5250irq/9-acpi1
1578199349340,6cyclictest5250irq/9-acpi1
1578199349337,7cyclictest6930-21kworker/1:1+kec_query1
1577999349340,5cyclictest0-21swapper/00
15779993491,9cyclictest20230-21cstates0
1578199348341,4cyclictest5250irq/9-acpi1
1578199348337,6cyclictest6930-21kworker/1:1+kec_query1
1578199348332,7cyclictest6930-21kworker/1:1+kec_query1
1577999348337,6cyclictest5050-21kworker/0:0+kec_query0
1578199347339,5cyclictest5250irq/9-acpi1
1578199347336,7cyclictest5250irq/9-acpi1
1578199347336,6cyclictest6930-21kworker/1:1+kec_query1
1578199347332,6cyclictest6930-21kworker/1:1+kec_query1
1578199346339,4cyclictest5250irq/9-acpi1
1578199346339,4cyclictest5250irq/9-acpi1
1578199346338,5cyclictest5250irq/9-acpi1
1578199346336,6cyclictest5250irq/9-acpi1
1578199346335,6cyclictest6930-21kworker/1:1+kec_query1
1578199345334,6cyclictest6930-21kworker/1:1+kec_query1
1578199345334,6cyclictest6930-21kworker/1:1+kec_query1
15779993451,338cyclictest0-21swapper/00
1578199344337,4cyclictest5250irq/9-acpi1
1578199344337,4cyclictest5250irq/9-acpi1
1578199344335,6cyclictest5250irq/9-acpi1
1578199344333,6cyclictest9545-21kworker/1:2+kec_query1
1578199344332,7cyclictest6930-21kworker/1:1+kec_query1
15781993442,5cyclictest5250irq/9-acpi1
1578199343336,4cyclictest5250irq/9-acpi1
1578199343334,6cyclictest5250irq/9-acpi1
1578199343332,7cyclictest5250irq/9-acpi1
1578199343332,6cyclictest6930-21kworker/1:1+kec_query1
1578199343332,6cyclictest6930-21kworker/1:1+kec_query1
1578199342333,5cyclictest5250irq/9-acpi1
1577999342330,7cyclictest20719-21kworker/0:2+kec_query0
15779993422,333cyclictest25941-21ssh0
1578199341333,5cyclictest5250irq/9-acpi1
15781993405,329cyclictest5250irq/9-acpi1
1578199340333,4cyclictest5250irq/9-acpi1
1578199340330,6cyclictest5250irq/9-acpi1
1578199340328,7cyclictest6930-21kworker/1:1+kec_query1
1577999340325,10cyclictest13532-21/usr/sbin/munin0
1578199339331,5cyclictest5250irq/9-acpi1
1578199339328,6cyclictest6930-21kworker/1:1+kec_query1
1577999339330,5cyclictest0-21swapper/00
1577999338327,6cyclictest5050-21kworker/0:0+kec_query0
1578199337330,4cyclictest5250irq/9-acpi1
1578199337326,6cyclictest6930-21kworker/1:1+kec_query1
1578199336329,4cyclictest5250irq/9-acpi1
1577999336327,5cyclictest0-21swapper/00
1577999336327,5cyclictest0-21swapper/00
1577999336324,7cyclictest1625-21irqstats0
15781993353,326cyclictest5250irq/9-acpi1
1578199335327,4cyclictest5250irq/9-acpi1
1578199335324,6cyclictest9545-21kworker/1:2+kec_query1
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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