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2026-03-15 - 09:07
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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 Sun Mar 15, 2026 01:16:18)
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
274599368355,8cyclictest18588-21diskmemload0
2745993561,349cyclictest0-21swapper/00
274599355344,6cyclictest18588-21diskmemload0
274599353340,8cyclictest20038-21apt-get0
274699352339,7cyclictest8723-21kworker/1:0+kec_query1
274699350340,5cyclictest8723-21kworker/1:0+kec_query1
274699350339,6cyclictest8723-21kworker/1:0+kec_query1
274699350339,6cyclictest8723-21kworker/1:0+kec_query1
274599350340,6cyclictest0-21swapper/00
274599350339,7cyclictest0-21swapper/00
274699349339,5cyclictest8723-21kworker/1:0+kec_query1
274699349337,7cyclictest8723-21kworker/1:0+kec_query1
274699349336,7cyclictest6489-21kworker/1:2+kec_query1
274699348336,7cyclictest8723-21kworker/1:0+kec_query1
274699347336,6cyclictest8723-21kworker/1:0+kec_query1
2745993471,340cyclictest0-21swapper/00
274699346335,6cyclictest8723-21kworker/1:0+kec_query1
274599346337,5cyclictest0-21swapper/00
274599346334,7cyclictest27455-21ssh0
274599346334,7cyclictest27455-21ssh0
274699345334,6cyclictest8723-21kworker/1:0+kec_query1
274699345334,6cyclictest8723-21kworker/1:0+kec_query1
274599345327,13cyclictest11136-21diskstats0
2745993442,334cyclictest3149-21ssh0
2745993441,337cyclictest0-21swapper/00
2745993441,337cyclictest0-21swapper/00
274699343332,6cyclictest8723-21kworker/1:0+kec_query1
274699343332,6cyclictest8723-21kworker/1:0+kec_query1
274699343332,6cyclictest6489-21kworker/1:2+kec_query1
274699343331,6cyclictest8723-21kworker/1:0+kec_query1
274599343332,6cyclictest27145-21kworker/0:1+kec_query0
274599343331,6cyclictest27145-21kworker/0:1+kec_query0
274599343328,9cyclictest9091-21ntp_states0
2745993432,7cyclictest15111-21pmu-power0
274699342330,7cyclictest8723-21kworker/1:0+kec_query1
274599342331,6cyclictest26848-21kworker/0:2+kec_query0
274599342330,7cyclictest17392-21apt-get0
2745993422,7cyclictest16373-21df0
2745993422,333cyclictest5259-21cut0
274699341330,6cyclictest8723-21kworker/1:0+kec_query1
274699341330,6cyclictest8723-21kworker/1:0+kec_query1
274699341329,6cyclictest8723-21kworker/1:0+kec_query1
274599341332,5cyclictest0-21swapper/00
274599341332,5cyclictest0-21swapper/00
274599341330,6cyclictest26848-21kworker/0:2+kec_query0
274599341329,7cyclictest26848-21kworker/0:2+kec_query0
274699340329,6cyclictest8723-21kworker/1:0+kec_query1
274599340331,5cyclictest0-21swapper/00
274599340329,6cyclictest26848-21kworker/0:2+kec_query0
274599340327,8cyclictest23501-21df0
274699339328,6cyclictest8723-21kworker/1:0+kec_query1
274699339328,6cyclictest8723-21kworker/1:0+kec_query1
274699339327,7cyclictest8723-21kworker/1:0+kec_query1
274599339324,8cyclictest2139-21irqstats0
274699338327,6cyclictest8723-21kworker/1:0+kec_query1
274699338327,6cyclictest8723-21kworker/1:0+kec_query1
274699338327,6cyclictest6489-21kworker/1:2+kec_query1
274599338329,5cyclictest0-21swapper/00
274599338327,6cyclictest23634-21ssh0
274599338326,7cyclictest8256-21rm0
274599338326,7cyclictest8256-21rm0
274599338326,7cyclictest18588-21diskmemload0
274599338326,7cyclictest18588-21diskmemload0
274599337328,5cyclictest0-21swapper/00
274599337324,8cyclictest26162-21smartctl0
2745993371,330cyclictest0-21swapper/00
274699336326,5cyclictest8723-21kworker/1:0+kec_query1
274699336325,6cyclictest8723-21kworker/1:0+kec_query1
274599336327,5cyclictest0-21swapper/00
274599336327,5cyclictest0-21swapper/00
274599336326,6cyclictest18588-21diskmemload0
274699335324,6cyclictest8723-21kworker/1:0+kec_query1
274699335324,6cyclictest8723-21kworker/1:0+kec_query1
274599335323,7cyclictest4416-21df0
274599335320,9cyclictest10964-21ntp_states0
274699334323,6cyclictest8723-21kworker/1:0+kec_query1
274699334323,6cyclictest8723-21kworker/1:0+kec_query1
274699334323,6cyclictest8723-21kworker/1:0+kec_query1
274699334323,6cyclictest8723-21kworker/1:0+kec_query1
274699334323,6cyclictest6489-21kworker/1:2+kec_query1
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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