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2026-03-14 - 15:32
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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 Sat Mar 14, 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
1606399380369,6cyclictest19903-21kworker/1:0+kec_query1
16061993691,362cyclictest27184-21ssh0
16061993691,362cyclictest27184-21ssh0
1606399368357,6cyclictest19903-21kworker/1:0+kec_query1
16061993681,361cyclictest0-21swapper/00
16061993671,360cyclictest0-21swapper/00
1606399365354,6cyclictest18580-21kworker/1:1+kec_query1
1606399364353,6cyclictest18580-21kworker/1:1+kec_query1
16061993611,354cyclictest0-21swapper/00
16061993601,353cyclictest0-21swapper/00
16061993601,353cyclictest0-21swapper/00
1606399359338,16cyclictest18580-21kworker/1:1+kec_query1
1606399357346,6cyclictest19903-21kworker/1:0+kec_query1
1606199357346,6cyclictest29487-21kworker/0:2+kec_query0
1606199356337,13cyclictest4437-21/usr/sbin/munin0
16061993561,349cyclictest0-21swapper/00
16061993551,348cyclictest0-21swapper/00
1606399354343,6cyclictest18580-21kworker/1:1+kec_query1
16061993532,345cyclictest0-21swapper/00
1606399351340,6cyclictest18580-21kworker/1:1+kec_query1
1606199351342,5cyclictest0-21swapper/00
16061993512,343cyclictest0-21swapper/00
16061993502,340cyclictest9886-21hddtemp_smartct0
16061993501,343cyclictest0-21swapper/00
16061993501,336cyclictest0-21swapper/00
1606399349338,6cyclictest19903-21kworker/1:0+kec_query1
1606399349338,6cyclictest19903-21kworker/1:0+kec_query1
1606399349335,9cyclictest18580-21kworker/1:1+kec_query1
16061993491,3cyclictest0-21swapper/00
16061993491,342cyclictest0-21swapper/00
1606399348337,6cyclictest19903-21kworker/1:0+kec_query1
1606399348337,6cyclictest19903-21kworker/1:0+kec_query1
1606399348337,6cyclictest18580-21kworker/1:1+kec_query1
1606399348337,5cyclictest18580-21kworker/1:1+kec_query1
1606399348336,6cyclictest19903-21kworker/1:0+kec_query1
1606399348334,9cyclictest19903-21kworker/1:0+kec_query1
1606199348339,5cyclictest0-21swapper/00
16061993481,342cyclictest0-21swapper/00
16061993481,341cyclictest0-21swapper/00
1606399347336,6cyclictest19903-21kworker/1:0+kec_query1
1606399347335,6cyclictest19903-21kworker/1:0+kec_query1
16061993471,340cyclictest0-21swapper/00
16061993471,340cyclictest0-21swapper/00
16061993471,340cyclictest0-21swapper/00
16061993471,340cyclictest0-21swapper/00
16061993471,340cyclictest0-21swapper/00
1606399346337,5cyclictest18580-21kworker/1:1+kec_query1
1606399346335,6cyclictest19903-21kworker/1:0+kec_query1
1606399346335,6cyclictest19903-21kworker/1:0+kec_query1
1606399346335,6cyclictest19903-21kworker/1:0+kec_query1
1606399346334,7cyclictest19903-21kworker/1:0+kec_query1
1606199346337,5cyclictest0-21swapper/00
1606199346337,5cyclictest0-21swapper/00
16061993461,3cyclictest0-21swapper/00
16061993461,3cyclictest0-21swapper/00
16061993461,339cyclictest0-21swapper/00
1606399345327,13cyclictest18580-21kworker/1:1+kec_query1
16061993451,3cyclictest0-21swapper/00
16061993451,338cyclictest0-21swapper/00
16061993451,338cyclictest0-21swapper/00
16061993451,338cyclictest0-21swapper/00
16061993451,337cyclictest22076-21ssh0
1606399344334,5cyclictest19903-21kworker/1:0+kec_query1
1606399344332,7cyclictest18580-21kworker/1:1+kec_query1
1606199344336,5cyclictest0-21swapper/00
1606199344336,5cyclictest0-21swapper/00
1606199344333,6cyclictest9256-21kworker/0:0+kec_query0
16061993441,337cyclictest0-21swapper/00
16061993441,337cyclictest0-21swapper/00
16061993441,337cyclictest0-21swapper/00
16061993441,337cyclictest0-21swapper/00
1606399343331,7cyclictest18580-21kworker/1:1+kec_query1
16061993431,4cyclictest26783-21ssh0
16061993431,336cyclictest0-21swapper/00
1606399342332,5cyclictest19903-21kworker/1:0+kec_query1
1606399342331,6cyclictest19903-21kworker/1:0+kec_query1
1606399342331,6cyclictest19903-21kworker/1:0+kec_query1
1606399342330,7cyclictest19903-21kworker/1:0+kec_query1
1606399342330,7cyclictest19903-21kworker/1:0+kec_query1
1606399342330,6cyclictest19903-21kworker/1:0+kec_query1
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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