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2026-06-30 - 14:21
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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 100 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
10033991816,1cyclictest0-21swapper/200:38:502
10033991815,2cyclictest4099-21H222:10:212
10033991815,2cyclictest21316-21/usr/sbin/munin22:20:122
10033991815,2cyclictest1474-21ntp_offset22:40:192
10033991814,3cyclictest4035-21H222:10:212
1003399181,16cyclictest4753-21cpuspeed_turbos23:45:142
1003399181,16cyclictest1085-21gdbus19:20:232
1003399181,16cyclictest1085-21gdbus19:20:222
1003399180,3cyclictest3450-21gsd-color23:15:182
1003399180,2cyclictest4035-21H222:10:212
1003399180,2cyclictest3989-21H222:10:212
1003399180,17cyclictest399-20systemd-journal22:55:262
1003399180,16cyclictest4035-21H222:10:212
1003399180,16cyclictest3985-21H222:10:212
10029991816,1cyclictest23061-21ntp_offset19:30:191
10029991816,1cyclictest0-21swapper/119:28:591
10029991814,3cyclictest22562-21awk22:20:171
1002999181,2cyclictest3985-21H222:10:211
1002999181,2cyclictest14776-21munin-run20:15:011
1002999180,3cyclictest870-21systemd-logind23:48:521
1002999180,3cyclictest689-21apt-get23:40:001
1002999180,2cyclictest3987-21H222:10:211
1002999180,16cyclictest4099-21H222:10:211
1002999180,16cyclictest0-21swapper/120:48:311
1002999180,15cyclictest3987-21H222:10:211
1002399183,1cyclictest0-21swapper/023:25:130
1002399182,15cyclictest4035-21H222:10:210
1002399182,15cyclictest3990-21H222:10:210
1002399182,15cyclictest22434-21cstates00:15:100
1002399182,15cyclictest13786-21cat00:00:140
1002399182,15cyclictest123982chrt23:59:250
10023991818,0cyclictest0-21swapper/023:15:430
10023991818,0cyclictest0-21swapper/021:00:390
10023991816,1cyclictest27041-21cstates22:30:140
10023991816,1cyclictest0-21swapper/019:37:320
10023991815,2cyclictest6128-21sort20:55:150
10023991815,2cyclictest29271-21apache_processe20:40:120
10023991814,3cyclictest4099-21H222:10:210
10023991813,2cyclictest4035-21H222:10:210
10023991812,5cyclictest0-21swapper/022:55:010
1002399181,16cyclictest3067-21expr20:50:160
1002399181,16cyclictest2121-21uname00:35:170
1002399181,16cyclictest16479-21cstates19:20:150
1002399181,16cyclictest16479-21cstates19:20:150
1002399181,16cyclictest11728-21sessionclean20:09:000
1002399181,16cyclictest0-21swapper/019:41:350
1002399180,2cyclictest3981-21H222:10:210
1002399180,17cyclictest0-21swapper/021:40:140
1002399180,17cyclictest0-21swapper/021:15:190
1003399179,4cyclictest0-21swapper/221:21:372
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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