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2026-05-18 - 02:03
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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 Sun May 17, 2026 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26927993129,2cyclictest0-21swapper/107:29:591
2693199223,16cyclictest3678-21grep08:20:162
26927992213,6cyclictest8137-21fschecks_time09:25:141
2692199221,4cyclictest0-21swapper/007:55:010
2692199220,21cyclictest0-21swapper/009:55:430
2693199212,18cyclictest0-21swapper/211:01:532
26921992113,4cyclictest0-21swapper/011:24:170
26931992017,2cyclictest2069-21systemd-udevd08:18:522
2693199200,19cyclictest0-21swapper/212:00:132
26921992017,2cyclictest4099-21H222:10:210
26921992017,2cyclictest32607-21cat09:10:170
26921992017,2cyclictest32607-21cat09:10:170
2693199193,1cyclictest0-21swapper/209:36:552
2693199193,15cyclictest17666-21ls09:40:232
2693199192,16cyclictest0-21swapper/212:20:572
2693199192,16cyclictest0-21swapper/210:29:332
26931991917,1cyclictest16304-21latency_hist11:35:012
26931991917,1cyclictest0-21swapper/212:15:142
26931991917,1cyclictest0-21swapper/211:55:282
26931991917,1cyclictest0-21swapper/207:46:102
2693199191,17cyclictest0-21swapper/210:35:102
2693199190,3cyclictest0-21swapper/212:40:002
2693199190,1cyclictest0-21swapper/209:15:242
2693199190,19cyclictest0-21swapper/208:38:532
2693199190,18cyclictest0-21swapper/209:55:002
2693199190,16cyclictest3985-21H222:10:212
2692799193,16cyclictest0-21swapper/110:30:041
2692799192,11cyclictest0-21swapper/108:49:111
26927991916,2cyclictest4035-21H222:10:211
2692799190,5cyclictest0-21swapper/110:27:561
2692799190,16cyclictest4035-21H222:10:211
2692799190,16cyclictest3989-21H222:10:211
2692199190,16cyclictest3976-21H222:10:210
2692199190,16cyclictest3083-21postgres09:17:500
2693199183,1cyclictest0-21swapper/210:10:242
2693199182,2cyclictest4652-21if_enp1s007:25:162
2693199182,1cyclictest0-21swapper/207:50:272
26931991817,1cyclictest10112-21latency_hist09:30:012
26931991816,1cyclictest26922-21cut10:55:172
26931991816,1cyclictest0-21swapper/212:13:092
26931991816,1cyclictest0-21swapper/209:55:152
26931991815,2cyclictest26149-21expr09:00:152
26931991815,2cyclictest13320-21needreboot10:30:182
26931991814,3cyclictest22139-21apt-config11:45:012
26931991814,3cyclictest0-21swapper/212:33:482
2693199181,3cyclictest18437-21cut10:40:152
2693199181,2cyclictest13822-21cat12:25:132
2693199181,16cyclictest3686-21processes12:05:182
2693199181,16cyclictest24040-21pzem11:45:192
2693199181,16cyclictest24040-21pzem11:45:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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