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2026-03-20 - 23:44
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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 3614 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 Mar 20, 2026 13:16:19)
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
150599396385,6cyclictest9869-21kworker/0:2+kec_query0
150599371362,5cyclictest0-21swapper/00
150699370358,7cyclictest7943-21kworker/1:0+kec_query1
150699364353,6cyclictest773-21kworker/1:2+kec_query1
150699364352,7cyclictest773-21kworker/1:2+kec_query1
150599364355,5cyclictest0-21swapper/00
150599362353,5cyclictest0-21swapper/00
150599362353,5cyclictest0-21swapper/00
1505993622,353cyclictest17339-21diskmemload0
1505993621,6cyclictest9903-21/usr/sbin/munin0
150599359350,5cyclictest0-21swapper/00
150599356344,7cyclictest9869-21kworker/0:2+kec_query0
1505993561,349cyclictest0-21swapper/00
1505993551,348cyclictest0-21swapper/00
150699354345,5cyclictest5250irq/9-acpi1
1505993541,12cyclictest16734-21ssh0
150699353342,6cyclictest773-21kworker/1:2+kec_query1
150699353341,7cyclictest773-21kworker/1:2+kec_query1
1505993531,346cyclictest0-21swapper/00
150699352341,6cyclictest773-21kworker/1:2+kec_query1
150699351340,6cyclictest7943-21kworker/1:0+kec_query1
150599351340,6cyclictest9869-21kworker/0:2+kec_query0
1505993512,3cyclictest0-21swapper/00
1505993511,3cyclictest0-21swapper/00
150699350339,6cyclictest773-21kworker/1:2+kec_query1
1505993501,3cyclictest0-21swapper/00
1505993501,343cyclictest0-21swapper/00
1506993493,340cyclictest5250irq/9-acpi1
150599349338,6cyclictest9869-21kworker/0:2+kec_query0
1505993491,6cyclictest23502-21grep0
1505993491,3cyclictest0-21swapper/00
150699348337,6cyclictest773-21kworker/1:2+kec_query1
150699348337,6cyclictest773-21kworker/1:2+kec_query1
150699347336,6cyclictest7943-21kworker/1:0+kec_query1
150699347336,6cyclictest7943-21kworker/1:0+kec_query1
150699346338,4cyclictest0-21swapper/11
150699346335,6cyclictest7943-21kworker/1:0+kec_query1
150699346335,6cyclictest7943-21kworker/1:0+kec_query1
150699346333,7cyclictest7943-21kworker/1:0+kec_query1
150599346337,5cyclictest0-21swapper/00
150599346335,6cyclictest9869-21kworker/0:2+kec_query0
150599346335,6cyclictest9869-21kworker/0:2+kec_query0
1505993461,338cyclictest30409-21ssh0
1505993461,338cyclictest30409-21ssh0
150699345333,7cyclictest773-21kworker/1:2+kec_query1
150599345336,5cyclictest0-21swapper/00
150599345335,6cyclictest0-21swapper/00
150599345334,6cyclictest9869-21kworker/0:2+kec_query0
150599345332,7cyclictest19949-21users0
1505993452,3cyclictest0-21swapper/00
150699344334,5cyclictest7943-21kworker/1:0+kec_query1
150699344333,6cyclictest7943-21kworker/1:0+kec_query1
150699344333,6cyclictest7943-21kworker/1:0+kec_query1
150699344333,6cyclictest7943-21kworker/1:0+kec_query1
150599344335,5cyclictest0-21swapper/00
150599344335,5cyclictest0-21swapper/00
150599344335,5cyclictest0-21swapper/00
150599344334,6cyclictest0-21swapper/00
150599344332,7cyclictest9869-21kworker/0:2+kec_query0
1505993442,3cyclictest0-21swapper/00
1505993441,338cyclictest0-21swapper/00
1506993436,3cyclictest5250irq/9-acpi1
150599343334,5cyclictest0-21swapper/00
150599343332,6cyclictest9869-21kworker/0:2+kec_query0
1505993431,336cyclictest0-21swapper/00
1505993431,336cyclictest0-21swapper/00
150699342331,6cyclictest7943-21kworker/1:0+kec_query1
150699342331,6cyclictest7943-21kworker/1:0+kec_query1
150699342331,6cyclictest7943-21kworker/1:0+kec_query1
150699342331,6cyclictest773-21kworker/1:2+kec_query1
150599342331,6cyclictest9869-21kworker/0:2+kec_query0
150599342327,9cyclictest12688-21df_inode0
150699341332,5cyclictest5250irq/9-acpi1
150699341330,6cyclictest7943-21kworker/1:0+kec_query1
150699341330,6cyclictest773-21kworker/1:2+kec_query1
150699341329,6cyclictest7943-21kworker/1:0+kec_query1
150599341332,5cyclictest0-21swapper/00
150599341332,5cyclictest0-21swapper/00
150699340329,6cyclictest773-21kworker/1:2+kec_query1
150699340328,7cyclictest773-21kworker/1:2+kec_query1
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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