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2026-04-01 - 13:33
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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 50 highest latencies:
System rack6slot4.osadl.org (updated Tue Mar 31, 2026 13:16:15)
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
1350993736,361cyclictest5250irq/9-acpi1
135099369346,18cyclictest19678-21kworker/1:2+kec_query1
135099368361,4cyclictest5250irq/9-acpi1
135099365354,6cyclictest11684-21kworker/1:0+kec_query1
134999363354,5cyclictest0-21swapper/00
134999363354,5cyclictest0-21swapper/00
135099361352,5cyclictest5250irq/9-acpi1
135099361349,7cyclictest23976-21kworker/1:0+kec_query1
1350993612,4cyclictest5250irq/9-acpi1
135099360349,6cyclictest10608-21kworker/1:2+kec_query1
135099359350,5cyclictest5250irq/9-acpi1
134999359350,5cyclictest0-21swapper/00
135099358336,17cyclictest23976-21kworker/1:0+kec_query1
1350993576,4cyclictest5250irq/9-acpi1
1350993565,345cyclictest5250irq/9-acpi1
135099356345,6cyclictest23976-21kworker/1:0+kec_query1
1350993548,340cyclictest5250irq/9-acpi1
1350993548,340cyclictest5250irq/9-acpi1
1349993541,339cyclictest13950-21ssh0
135099353342,6cyclictest10608-21kworker/1:2+kec_query1
135099353340,8cyclictest11684-21kworker/1:0+kec_query1
134999352332,14cyclictest3757-21ntp_states0
1350993518,337cyclictest5250irq/9-acpi1
1350993517,328cyclictest5250irq/9-acpi1
135099351343,5cyclictest5250irq/9-acpi1
135099351340,6cyclictest24824-21kworker/1:1+kec_query1
1350993512,341cyclictest636-21runrttasks1
135099350341,5cyclictest5250irq/9-acpi1
135099350339,6cyclictest19678-21kworker/1:2+kec_query1
135099350339,6cyclictest10608-21kworker/1:2+kec_query1
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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