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2026-08-02 - 14:39
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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 Sun Aug 02, 2026 00:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2903999251,19cyclictest29667-21latency_hist21:05:000
29039992320,1cyclictest9-21ksoftirqd/023:20:290
29039992313,9cyclictest5057-21fschecks_time23:10:150
29039992313,9cyclictest5057-21fschecks_time23:10:150
2904199220,17cyclictest0-21swapper/223:50:022
2904099220,17cyclictest0-21swapper/123:13:331
2904099220,17cyclictest0-21swapper/123:13:331
2903999210,14cyclictest0-21swapper/022:11:570
2904199204,15cyclictest0-21swapper/221:25:162
29041992015,4cyclictest0-21swapper/222:35:142
29041992014,5cyclictest0-21swapper/222:23:122
2904199200,18cyclictest399-20systemd-journal20:50:012
2904099204,15cyclictest0-21swapper/122:03:101
29039992017,2cyclictest4099-21H222:10:210
2903999200,16cyclictest0-21swapper/019:10:150
2904199192,1cyclictest0-21swapper/200:37:022
2904199192,16cyclictest0-21swapper/221:18:342
2904199190,5cyclictest0-21swapper/223:52:422
2904199190,18cyclictest0-21swapper/220:30:142
2904099193,15cyclictest0-21swapper/120:54:051
2904099192,16cyclictest5082-21proc_pri21:15:211
2904099191,17cyclictest0-21swapper/121:45:021
2904099190,16cyclictest3991-21H222:10:211
29039991917,1cyclictest9-21ksoftirqd/019:51:380
29039991916,2cyclictest21534-21date20:50:010
29039991916,2cyclictest18795-21awk21:40:170
29039991915,3cyclictest0-21swapper/021:47:550
29039991914,1cyclictest0-21swapper/000:13:470
2903999190,18cyclictest843-21systemd-network22:35:370
2903999190,16cyclictest3976-21H222:10:210
2904199182,2cyclictest4035-21H222:10:212
29041991816,1cyclictest28-21ksoftirqd/220:28:142
29041991816,1cyclictest0-21swapper/221:45:222
29041991816,1cyclictest0-21swapper/219:25:142
29041991815,2cyclictest2249-21cpuspeed_turbos20:15:162
29041991815,1cyclictest0-21swapper/219:45:262
29041991815,1cyclictest0-21swapper/219:45:262
29041991814,3cyclictest993-21dbus-daemon19:38:592
29041991814,3cyclictest8729-21cmp00:15:012
29041991814,2cyclictest0-21swapper/219:45:012
2904199181,16cyclictest32485-21idleruntime-cro21:10:002
2904199180,3cyclictest0-21swapper/223:22:472
2904199180,2cyclictest1215-21nfsd400:00:192
2904199180,17cyclictest4100-21H222:10:212
2904199180,17cyclictest3985-21H222:10:212
2904199180,15cyclictest0-21swapper/222:16:402
2904099182,15cyclictest0-21swapper/100:30:201
29040991816,1cyclictest21-21ksoftirqd/122:40:351
29040991816,1cyclictest0-21swapper/120:45:231
29040991815,2cyclictest3983-21H222:10:211
29040991815,2cyclictest18607-21expr23:35:141
29040991815,2cyclictest18607-21expr23:35:141
2904099181,2cyclictest3983-21H222:10:211
2904099181,2cyclictest2007-21systemd-journal00:27:051
2904099181,1cyclictest27897-21fschecks_time21:00:151
29040991811,6cyclictest426-21systemd-udevd19:20:521
29040991811,6cyclictest426-21systemd-udevd19:20:521
2904099180,2cyclictest3985-21H222:10:211
2904099180,2cyclictest28185-21cpuspeed_turbos22:55:131
2904099180,17cyclictest870-21systemd-logind21:26:511
2904099180,16cyclictest32420-21cpuspeed_turbos00:00:141
2903999182,1cyclictest0-21swapper/020:35:170
2903999182,1cyclictest0-21swapper/020:35:160
2903999182,15cyclictest9-21ksoftirqd/023:45:000
2903999182,15cyclictest0-21swapper/019:26:020
29039991815,2cyclictest9-21ksoftirqd/022:45:170
29039991814,3cyclictest3991-21H222:10:210
29039991814,3cyclictest3991-21H222:10:210
2903999181,16cyclictest3450-21gsd-color22:05:000
2903999181,16cyclictest101rcuc/021:20:150
2903999180,3cyclictest15031-21cut22:30:180
2903999180,2cyclictest3976-21H222:10:210
2903999180,1cyclictest9-21ksoftirqd/022:41:040
2903999180,1cyclictest0-21swapper/019:22:250
2903999180,1cyclictest0-21swapper/019:22:240
2903999180,17cyclictest843-21systemd-network23:06:020
2903999180,16cyclictest30881-21cpuspeed_turbos23:00:130
2903999180,15cyclictest0-21swapper/021:50:250
29041991715,1cyclictest0-21swapper/220:12:552
29041991715,1cyclictest0-21swapper/220:12:542
29041991714,2cyclictest8640-21pzem_power23:15:212
29041991714,2cyclictest5917-21pzem_power23:10:222
29041991714,2cyclictest5917-21pzem_power23:10:212
29041991714,2cyclictest4035-21H222:10:212
29041991714,2cyclictest30536-21latency23:55:182
29041991714,2cyclictest25627-21/usr/sbin/munin21:55:182
29041991714,2cyclictest23457-21cstates21:50:132
29041991714,2cyclictest15981-21nfsd400:25:172
29041991714,2cyclictest15101-21nfsd422:30:192
2904199171,2cyclictest1276-21cpuspeed_turbos23:05:142
29041991712,2cyclictest3989-21H222:10:212
2904199171,1cyclictest17487-21cpuspeed_turbos00:30:122
2904199171,15cyclictest28901-21expr22:00:142
2904199171,15cyclictest10740-21cpuspeed_turbos22:25:142
2904199170,2cyclictest4099-21H222:10:212
2904199170,2cyclictest4099-21H222:10:212
2904199170,2cyclictest24343-21smartctl19:55:202
2904199170,2cyclictest2196-21python319:20:022
2904199170,2cyclictest2196-21python319:20:022
2904199170,2cyclictest15914-21grep21:35:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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