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2025-07-19 - 11:22
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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 SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rack6slot0.osadl.org (updated Sat Jul 19, 2025 01:01:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3970799305302,2cyclictest0-21swapper/819:33:0038
3970799305302,2cyclictest0-21swapper/819:33:0038
39723992493,3cyclictest24158-21NetworkChangeNo00:35:2015
39723992493,3cyclictest24158-21NetworkChangeNo00:35:2015
3969999246243,2cyclictest0-21swapper/100:13:241
3969999246243,2cyclictest0-21swapper/100:13:241
3969999246243,2cyclictest0-21swapper/100:13:241
3969999243200,18cyclictest0-21swapper/121:30:191
3969999243200,18cyclictest0-21swapper/121:30:191
3972899236227,4cyclictest3078-21CPU20
3972899236227,4cyclictest3078-21CPU20
3972899236227,4cyclictest3078-21CPU20
3972499234200,11cyclictest21703-21TaskSchedulerSi20:30:1916
3972499234200,11cyclictest21703-21TaskSchedulerSi20:30:1916
3972499232202,17cyclictest15660-21NetworkChangeNo19:55:1816
3972499232202,17cyclictest15660-21NetworkChangeNo19:55:1816
3971099216153,42cyclictest0-21swapper/1100:10:223
3971099216153,42cyclictest0-21swapper/1100:10:213
3971099216153,42cyclictest0-21swapper/1100:10:213
3972499215206,6cyclictest1922-21polkitd23:35:3516
3972499215206,6cyclictest1922-21polkitd23:35:3516
3972499215206,6cyclictest1922-21polkitd23:35:3516
3972799214209,3cyclictest0-21swapper/2600:10:1719
3972799214209,3cyclictest0-21swapper/2600:10:1719
3972799214209,3cyclictest0-21swapper/2600:10:1719
3973499213199,10cyclictest0-21swapper/3223:55:5626
3973499213199,10cyclictest0-21swapper/3223:55:5626
3973499213199,10cyclictest0-21swapper/3223:55:5626
3973499207103,100cyclictest4908-21CPU26
3973499207103,100cyclictest4908-21CPU26
3970099207201,3cyclictest0-21swapper/223:35:2012
3970099207201,3cyclictest0-21swapper/223:35:2012
3970099207201,3cyclictest0-21swapper/223:35:2012
3971199203197,3cyclictest0-21swapper/1223:34:594
3971199203197,3cyclictest0-21swapper/1223:34:594
3973499202194,6cyclictest0-21swapper/3222:44:5326
3973499202194,6cyclictest0-21swapper/3222:44:5326
39727992021,4cyclictest0-21swapper/2600:35:2119
39727992021,4cyclictest0-21swapper/2600:35:2119
3973099200176,17cyclictest0-21swapper/2823:31:2321
3973099200176,17cyclictest0-21swapper/2823:31:2321
3970799200189,8cyclictest1922-21polkitd00:20:5238
3970799200189,8cyclictest1922-21polkitd00:20:5238
397319919926,170cyclictest0-21swapper/2923:35:1922
397319919926,170cyclictest0-21swapper/2923:35:1922
397319919926,170cyclictest0-21swapper/2923:35:1822
3972499199194,4cyclictest0-21swapper/2319:20:2416
3972499199194,4cyclictest0-21swapper/2319:20:2416
39720991998,3cyclictest11899-21CPU11
39720991998,3cyclictest11899-21CPU11
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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