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2025-11-25 - 04:55
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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 Nov 25, 2025 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1207299258,16cyclictest3612-21perf20:50:012
12070992017,2cyclictest19649-21latency_hist00:10:000
12070992014,3cyclictest0-21swapper/022:55:530
1207299192,16cyclictest0-21swapper/220:34:582
12072991917,1cyclictest4244-21expr20:50:142
12072991917,1cyclictest0-21swapper/221:05:182
12072991916,2cyclictest23546-21cpuspeed_turbos21:25:142
12072991916,2cyclictest10624-21timerandwakeup23:50:212
1207299190,2cyclictest4530-21H212:26:332
1207299190,16cyclictest4593-21H212:26:332
1207299190,16cyclictest4534-21H212:26:332
1207199190,2cyclictest4532-21H212:26:331
1207199190,2cyclictest4528-21H212:26:331
1207199190,16cyclictest4532-21H212:26:331
1207199190,16cyclictest4526-21H212:26:331
12070991917,1cyclictest0-21swapper/023:57:520
12070991913,5cyclictest0-21swapper/000:35:000
1207099191,16cyclictest27480-21nfsd421:30:200
1207099190,2cyclictest4538-21H212:26:330
1207099190,16cyclictest4536-21H212:26:330
1207099190,16cyclictest4530-21H212:26:330
1207299183,1cyclictest0-21swapper/221:24:242
1207299182,15cyclictest28-21ksoftirqd/200:22:012
1207299182,15cyclictest0-21swapper/222:15:142
12072991816,1cyclictest1031-21timerandwakeup19:45:222
12072991815,2cyclictest9867-21proc_pri21:55:202
12072991815,2cyclictest4526-21H212:26:332
12072991815,2cyclictest10839-21grep22:55:182
12072991814,2cyclictest24007-21nfsd400:15:192
1207299181,2cyclictest4528-21H212:26:332
1207299181,2cyclictest16740-21ls20:15:162
12072991812,4cyclictest0-21swapper/220:38:352
1207299181,16cyclictest31516-21sessionclean21:39:002
1207299180,2cyclictest7496-21perf20:00:012
1207299180,2cyclictest4538-21H212:26:332
1207299180,1cyclictest4538-21H212:26:332
1207299180,17cyclictest4538-21H212:26:332
1207299180,16cyclictest4534-21H212:26:332
1207299180,15cyclictest4538-21H212:26:332
1207199182,15cyclictest21-21ksoftirqd/122:17:001
12071991816,1cyclictest0-21swapper/123:51:271
12071991814,3cyclictest4756-21perf19:55:011
12071991814,3cyclictest4593-21H212:26:331
12071991814,3cyclictest4536-21H212:26:331
12071991814,3cyclictest4534-21H212:26:331
12071991814,3cyclictest0-21swapper/120:10:151
1207199181,1cyclictest0-21swapper/123:04:251
1207199180,2cyclictest4593-21H212:26:331
1207199180,2cyclictest4534-21H212:26:331
1207199180,2cyclictest4530-21H212:26:331
1207199180,2cyclictest28472-21cron23:34:551
1207199180,17cyclictest27727-21systemctl21:30:231
1207199180,16cyclictest4538-21H212:26:331
1207199180,16cyclictest4530-21H212:26:331
1207199180,16cyclictest4526-21H212:26:331
1207199180,16cyclictest4523-21H212:26:331
1207199180,15cyclictest4538-21H212:26:331
1207099183,1cyclictest0-21swapper/023:06:580
1207099183,1cyclictest0-21swapper/021:36:480
1207099182,15cyclictest4534-21H212:26:330
1207099182,15cyclictest27050-21processes00:20:230
1207099182,15cyclictest24581-21cpu20:30:130
12070991817,1cyclictest0-21swapper/019:10:150
12070991816,1cyclictest15435-21missed_timers00:00:180
12070991815,2cyclictest11420-21date23:55:010
12070991814,2cyclictest4593-21H212:26:330
1207099180,3cyclictest4530-21H212:26:330
1207099180,1cyclictest0-21swapper/020:58:000
1207099180,17cyclictest4593-21H212:26:330
1207099180,17cyclictest4532-21H212:26:330
1207099180,15cyclictest4534-21H212:26:330
12072991715,1cyclictest0-21swapper/222:31:012
12072991715,1cyclictest0-21swapper/222:31:012
12072991714,3cyclictest0-21swapper/220:55:172
12072991714,2cyclictest4534-21H212:26:332
12072991714,2cyclictest4528-21H212:26:332
12072991714,2cyclictest4526-21H212:26:332
12072991714,2cyclictest4526-21H212:26:332
12072991714,2cyclictest2848-21cpuspeed_turbos23:40:142
12072991714,2cyclictest15111-21nfsd422:05:172
1207299171,15cyclictest0-21swapper/220:20:192
1207299171,15cyclictest0-21swapper/220:20:182
1207299170,2cyclictest995-21irqbalance23:05:122
1207299170,2cyclictest4581-21H212:26:332
1207299170,2cyclictest4526-21H212:26:332
1207299170,2cyclictest4523-21H212:26:332
1207299170,2cyclictest22725-21expr22:20:132
1207299170,2cyclictest20747-21grep19:25:152
1207299170,2cyclictest15182-21if_err_enp1s000:00:172
1207299170,1cyclictest4530-21H212:26:332
1207299170,1cyclictest0-21swapper/221:40:152
1207299170,16cyclictest887-21udisksd22:36:422
1207299170,16cyclictest4581-21H212:26:332
1207299170,16cyclictest4536-21H212:26:332
1207299170,16cyclictest4534-21H212:26:332
1207299170,16cyclictest4530-21H212:26:332
1207299170,16cyclictest4528-21H212:26:332
1207299170,16cyclictest4526-21H212:26:332
1207299170,16cyclictest4523-21H212:26:332
1207299170,16cyclictest32032-21nvmesmart_nvme020:40:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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