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2026-04-09 - 16:40
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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 Thu Apr 09, 2026 13:16:20)
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
3232599380368,6cyclictest14726-21kworker/1:2+kec_query1
32321993761,369cyclictest0-21swapper/00
3232199373362,6cyclictest5738-21ssh0
32321993732,365cyclictest0-21swapper/00
3232599365354,6cyclictest1944-21kworker/1:1+kec_query1
3232199365356,5cyclictest0-21swapper/00
32321993631,3cyclictest0-21swapper/00
3232599360350,5cyclictest13270-21kworker/1:0+kec_query1
32321993602,351cyclictest17347-21memory0
32321993601,353cyclictest0-21swapper/00
32321993601,353cyclictest0-21swapper/00
3232599359348,6cyclictest24935-21kworker/1:1+kec_query1
3232599359348,6cyclictest13270-21kworker/1:0+kec_query1
32321993592,349cyclictest14194-21ntp_states0
32321993591,3cyclictest0-21swapper/00
32321993581,3cyclictest0-21swapper/00
32321993581,351cyclictest0-21swapper/00
32321993581,351cyclictest0-21swapper/00
3232599357344,8cyclictest13270-21kworker/1:0+kec_query1
32321993562,348cyclictest0-21swapper/00
32321993562,346cyclictest10496-21df_inode0
3232599355344,6cyclictest28821-21kworker/1:0+kec_query1
3232599355344,6cyclictest24935-21kworker/1:1+kec_query1
3232199355345,6cyclictest0-21swapper/00
32321993552,3cyclictest0-21swapper/00
3232599354343,6cyclictest1944-21kworker/1:1+kec_query1
32321993542,346cyclictest0-21swapper/00
32321993541,3cyclictest0-21swapper/00
3232199353344,5cyclictest0-21swapper/00
3232199353344,5cyclictest0-21swapper/00
3232199353344,5cyclictest0-21swapper/00
3232199353343,6cyclictest0-21swapper/00
32321993531,3cyclictest0-21swapper/00
3232599352341,6cyclictest1944-21kworker/1:1+kec_query1
3232599352341,6cyclictest13270-21kworker/1:0+kec_query1
3232599352340,7cyclictest13270-21kworker/1:0+kec_query1
32321993521,3cyclictest0-21swapper/00
32321993521,345cyclictest0-21swapper/00
3232599351340,6cyclictest14726-21kworker/1:2+kec_query1
3232599351332,14cyclictest13270-21kworker/1:0+kec_query1
3232199351342,5cyclictest0-21swapper/00
32321993512,344cyclictest0-21swapper/00
32321993511,344cyclictest0-21swapper/00
3232199350341,5cyclictest0-21swapper/00
32321993502,7cyclictest16804-21diskstats0
32321993502,343cyclictest0-21swapper/00
32321993502,341cyclictest17851-21perl0
32321993501,4cyclictest32597-21ssh0
32321993501,3cyclictest0-21swapper/00
32321993501,3cyclictest0-21swapper/00
32321993501,3cyclictest0-21swapper/00
32321993501,343cyclictest0-21swapper/00
3232599349338,6cyclictest13270-21kworker/1:0+kec_query1
3232599349338,6cyclictest13270-21kworker/1:0+kec_query1
3232599349337,7cyclictest28821-21kworker/1:0+kec_query1
32321993492,340cyclictest3572-21apt-get0
32321993491,342cyclictest0-21swapper/00
32321993491,342cyclictest0-21swapper/00
32321993491,342cyclictest0-21swapper/00
32321993491,342cyclictest0-21swapper/00
32321993491,12cyclictest31120-21head0
3232599348337,6cyclictest1944-21kworker/1:1+kec_query1
3232599348337,6cyclictest13270-21kworker/1:0+kec_query1
3232199348338,6cyclictest0-21swapper/00
32321993482,340cyclictest0-21swapper/00
3232599347336,6cyclictest28821-21kworker/1:0+kec_query1
3232599347336,6cyclictest28821-21kworker/1:0+kec_query1
3232599347336,6cyclictest24935-21kworker/1:1+kec_query1
3232599347336,6cyclictest14726-21kworker/1:2+kec_query1
3232199347338,5cyclictest0-21swapper/00
3232199347337,5cyclictest21669-21ssh0
3232199347334,7cyclictest29760-21memory0
32321993472,3cyclictest0-21swapper/00
32321993472,3cyclictest0-21swapper/00
32321993471,3cyclictest0-21swapper/00
3232599346335,6cyclictest1944-21kworker/1:1+kec_query1
3232599346335,6cyclictest13270-21kworker/1:0+kec_query1
3232599346335,6cyclictest13270-21kworker/1:0+kec_query1
3232599346335,6cyclictest13270-21kworker/1:0+kec_query1
32321993461,339cyclictest0-21swapper/00
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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