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2026-04-10 - 16:58
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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 3618 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 Fri Apr 10, 2026 13:16:14)
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
1807799374363,6cyclictest11390-21kworker/1:1+kec_query1
1807699373355,13cyclictest5759-21/usr/sbin/munin0
18076993722,2cyclictest151ktimers/00
1807799369356,8cyclictest16971-21kworker/1:2+kec_query1
1807799365353,7cyclictest11390-21kworker/1:1+kec_query1
1807799364352,7cyclictest11390-21kworker/1:1+kec_query1
1807799362355,4cyclictest5250irq/9-acpi1
1807799362351,6cyclictest11390-21kworker/1:1+kec_query1
1807699360350,5cyclictest29519-21ssh0
18076993601,353cyclictest0-21swapper/00
18076993601,353cyclictest0-21swapper/00
1807699359343,11cyclictest31703-21ssh0
1807799358347,6cyclictest11390-21kworker/1:1+kec_query1
1807799358346,7cyclictest11390-21kworker/1:1+kec_query1
1807699358349,5cyclictest0-21swapper/00
1807699356347,5cyclictest0-21swapper/00
180779935510,4cyclictest5250irq/9-acpi1
18076993552,346cyclictest7489-21apt-get0
1807699354345,5cyclictest0-21swapper/00
1807699353344,5cyclictest0-21swapper/00
1807699353344,5cyclictest0-21swapper/00
18076993531,346cyclictest0-21swapper/00
1807799352340,7cyclictest11390-21kworker/1:1+kec_query1
1807699352341,6cyclictest22746-21kworker/0:2+kec_query0
1807699352335,12cyclictest4277-21runrttasks0
1807799351340,6cyclictest11390-21kworker/1:1+kec_query1
1807799351340,6cyclictest11390-21kworker/1:1+kec_query1
1807699351342,5cyclictest0-21swapper/00
1807799350340,5cyclictest20429-21kworker/1:0+kec_query1
1807799350339,6cyclictest11390-21kworker/1:1+kec_query1
1807799350338,7cyclictest11390-21kworker/1:1+kec_query1
1807699350341,5cyclictest0-21swapper/00
1807699350341,5cyclictest0-21swapper/00
1807699350338,7cyclictest2099-21munin-run0
18076993501,343cyclictest0-21swapper/00
1807699349336,8cyclictest22746-21kworker/0:2+kec_query0
18077993485,5cyclictest5250irq/9-acpi1
1807799348337,6cyclictest20429-21kworker/1:0+kec_query1
1807799348337,6cyclictest20429-21kworker/1:0+kec_query1
1807799348337,6cyclictest11390-21kworker/1:1+kec_query1
1807799348337,6cyclictest11390-21kworker/1:1+kec_query1
1807699348339,5cyclictest0-21swapper/00
1807699348339,5cyclictest0-21swapper/00
18076993481,341cyclictest0-21swapper/00
18076993472,3cyclictest0-21swapper/00
18076993472,339cyclictest0-21swapper/00
1807799346334,7cyclictest11390-21kworker/1:1+kec_query1
1807699346337,5cyclictest0-21swapper/00
1807699346335,6cyclictest22746-21kworker/0:2+kec_query0
1807799345333,7cyclictest11390-21kworker/1:1+kec_query1
1807699345334,6cyclictest16196-21ssh0
1807799344333,6cyclictest20429-21kworker/1:0+kec_query1
1807799344331,7cyclictest11390-21kworker/1:1+kec_query1
18076993442,336cyclictest0-21swapper/00
1807799343332,6cyclictest11390-21kworker/1:1+kec_query1
1807799343331,7cyclictest11390-21kworker/1:1+kec_query1
1807699343336,4cyclictest0-21swapper/00
1807699343334,5cyclictest0-21swapper/00
1807699343334,5cyclictest0-21swapper/00
1807699343333,6cyclictest0-21swapper/00
18076993432,335cyclictest0-21swapper/00
18076993431,3cyclictest0-21swapper/00
1807799342331,6cyclictest20429-21kworker/1:0+kec_query1
1807799342331,6cyclictest11390-21kworker/1:1+kec_query1
18076993422,333cyclictest4759-21memory0
18076993421,335cyclictest0-21swapper/00
1807799341332,5cyclictest0-21swapper/11
1807799341330,6cyclictest20429-21kworker/1:0+kec_query1
1807799341330,6cyclictest20429-21kworker/1:0+kec_query1
1807799341330,6cyclictest11390-21kworker/1:1+kec_query1
1807799341330,6cyclictest11390-21kworker/1:1+kec_query1
1807799341330,6cyclictest11390-21kworker/1:1+kec_query1
1807799341329,7cyclictest11390-21kworker/1:1+kec_query1
1807699341332,5cyclictest0-21swapper/00
1807699341330,7cyclictest0-21swapper/00
18076993412,4cyclictest0-21swapper/00
18076993412,333cyclictest0-21swapper/00
18076993411,3cyclictest0-21swapper/00
18076993411,3cyclictest0-21swapper/00
18076993411,3cyclictest0-21swapper/00
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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