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2026-06-30 - 23:05
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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 rackdslot0.osadl.org (updated Tue Jun 30, 2026 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10023993331,2cyclictest0-21swapper/019:30:160
10033992617,9cyclictest0-21swapper/223:26:412
10033992414,0cyclictest0-21swapper/200:20:172
1002399230,0cyclictest0-21swapper/023:50:160
10033992119,1cyclictest19047-21apache_processe00:10:152
1002999215,15cyclictest21-21ksoftirqd/119:24:421
1002999215,15cyclictest21-21ksoftirqd/119:24:421
10029992115,3cyclictest0-21swapper/123:10:011
1002999210,0cyclictest0-21swapper/123:53:591
10033992020,0cyclictest0-21swapper/221:03:332
10033992020,0cyclictest0-21swapper/200:30:222
10033992019,1cyclictest20403-21kworker/2:121:56:162
10033992016,3cyclictest0-21swapper/200:00:012
1002999204,7cyclictest0-21swapper/123:12:421
10029992018,2cyclictest0-21swapper/121:03:331
1002399206,13cyclictest0-21swapper/022:12:360
1002399204,15cyclictest15297-21expr20:15:120
10023992016,3cyclictest0-21swapper/000:21:170
10023992016,1cyclictest0-21swapper/020:49:160
10023992015,2cyclictest10128-21grep22:00:010
10023992012,4cyclictest0-21swapper/022:00:520
1003399192,1cyclictest0-21swapper/222:10:192
10033991919,0cyclictest0-21swapper/220:58:392
10033991917,1cyclictest0-21swapper/221:52:542
10033991917,1cyclictest0-21swapper/221:52:532
10033991915,1cyclictest0-21swapper/220:05:182
1003399190,1cyclictest352-21jbd2/nvme0n1p2-23:14:562
1003399190,16cyclictest4099-21H222:10:212
1002999192,2cyclictest17261-21nfsd400:05:241
1002999192,16cyclictest30306-21https00:30:001
10029991915,3cyclictest0-21swapper/119:52:551
1002999190,2cyclictest4035-21H222:10:211
1002999190,16cyclictest3987-21H222:10:211
1002399193,15cyclictest24766-21latency_hist23:25:010
1002399192,16cyclictest6408-21cat20:00:020
1002399192,16cyclictest1182-21sed22:40:170
1002399192,16cyclictest0-21swapper/020:00:230
1002399192,16cyclictest0-21swapper/019:51:570
10023991919,0cyclictest0-21swapper/022:05:170
10023991917,1cyclictest0-21swapper/000:10:180
10023991916,2cyclictest3105-21expr21:45:190
10023991916,2cyclictest18658-21if_lxdbr020:20:180
10023991914,3cyclictest3991-21H222:10:210
1002399190,2cyclictest3981-21H222:10:210
1002399190,18cyclictest843-21systemd-network21:54:370
1002399190,18cyclictest843-21systemd-network21:54:360
1002399190,18cyclictest15870-21sed19:20:000
1002399190,18cyclictest0-21swapper/020:27:540
1002399190,16cyclictest3981-21H222:10:210
10033991816,1cyclictest28-21ksoftirqd/200:28:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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