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2026-08-02 - 06:55
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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 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
2904199170,2cyclictest1351-21lxd22:06:512
2904199170,2cyclictest13215-21fschecks_count23:25:132
2904199170,16cyclictest993-21dbus-daemon20:20:212
2904199170,16cyclictest3351-21lxd21:00:502
2904199170,16cyclictest3351-21lxd00:24:402
2904199170,16cyclictest32451-21switchtime23:00:212
2904199170,16cyclictest30758-21nvmesmart_nvme019:10:182
2904199170,16cyclictest26227-21/usr/sbin/munin22:50:182
2904199170,16cyclictest25764-21cut20:55:182
2904199170,16cyclictest23249-21missed_timers22:45:172
2904199170,16cyclictest18444-21/usr/sbin/munin23:35:172
2904199170,16cyclictest18444-21/usr/sbin/munin23:35:172
2904199170,16cyclictest16951-21fschecks_time20:40:172
2904199170,16cyclictest15567-21apt-config23:30:012
2904199170,15cyclictest3985-21H222:10:212
2904099172,1cyclictest4099-21H222:10:211
2904099172,1cyclictest0-21swapper/120:55:491
29040991715,1cyclictest6468-21cpuspeed_turbos21:20:141
29040991715,1cyclictest21-21ksoftirqd/123:45:111
29040991715,1cyclictest10269-21expr23:20:161
29040991715,1cyclictest0-21swapper/122:50:141
29040991715,1cyclictest0-21swapper/119:40:191
29040991714,2cyclictest420-21/usr/sbin/munin21:10:131
29040991714,2cyclictest32691-21latency20:10:211
29040991714,2cyclictest32691-21latency20:10:201
29040991714,2cyclictest32497-21cat19:15:151
29040991714,2cyclictest2729-21df_inode20:15:171
29040991714,2cyclictest2724-21df_inode22:10:141
29040991714,2cyclictest26816-21apache_accesses23:50:121
29040991714,1cyclictest0-21swapper/123:30:321
29040991712,1cyclictest0-21swapper/119:50:141
2904099170,2cyclictest7167-21grep23:15:151
2904099170,2cyclictest27109-21/usr/sbin/munin20:00:201
2904099170,2cyclictest2449-21nfsd423:05:191
2904099170,2cyclictest23643-21http_loadtime21:50:141
2904099170,2cyclictest15692-21missed_timers21:35:181
2904099170,2cyclictest0-21swapper/122:25:161
2904099170,1cyclictest0-21swapper/122:33:481
2904099170,1cyclictest0-21swapper/119:11:141
2904099170,16cyclictest8820-21irqstats22:20:161
2904099170,16cyclictest8676-21/usr/sbin/munin19:30:101
2904099170,16cyclictest5783-21df_inode20:20:141
2904099170,16cyclictest32468-21grep21:10:001
2904099170,16cyclictest31433-21ls22:05:141
2904099170,16cyclictest31321-21df23:00:141
2904099170,16cyclictest3053-21systemd-logind00:08:511
2904099170,16cyclictest30353-21/usr/sbin/munin20:05:201
2904099170,16cyclictest27952-21munin-run22:00:001
2904099170,16cyclictest23134-21timerandwakeup23:40:211
2904099170,16cyclictest1856-21systemd-udevd19:56:521
2904099170,16cyclictest17622-21cpuspeed_turbos19:45:141
2904099170,16cyclictest17622-21cpuspeed_turbos19:45:131
2904099170,16cyclictest13578-21cpuspeed_turbos20:35:121
2904099170,16cyclictest13578-21cpuspeed_turbos20:35:121
2904099170,16cyclictest0-21swapper/123:27:501
29039991717,0cyclictest0-21swapper/021:15:100
29039991715,1cyclictest9-21ksoftirqd/019:45:210
29039991715,1cyclictest9-21ksoftirqd/019:45:200
29039991715,1cyclictest3987-21H222:10:210
29039991715,1cyclictest101rcuc/000:20:130
29039991715,1cyclictest0-21swapper/021:30:100
29039991714,2cyclictest19691-21cron00:35:000
29039991714,2cyclictest1434-21runrttasks20:11:540
29039991714,2cyclictest1434-21runrttasks20:11:540
29039991713,3cyclictest3985-21H222:10:210
2903999171,1cyclictest9-21ksoftirqd/021:40:010
2903999171,15cyclictest9-21ksoftirqd/021:10:220
2903999171,15cyclictest9-21ksoftirqd/020:30:130
2903999171,15cyclictest30267-21expr21:05:150
2903999171,15cyclictest0-21swapper/023:30:010
2903999170,2cyclictest4099-21H222:10:210
2903999170,2cyclictest27481-21ls21:55:220
2903999170,2cyclictest22324-21df20:50:150
2903999170,2cyclictest14495-21snapd23:55:280
2903999170,16cyclictest7215-21tr23:15:150
2903999170,16cyclictest4422-21ntpq00:05:220
2903999170,16cyclictest29135-21grep23:54:590
2903999170,16cyclictest28002-21perf20:05:000
2903999170,16cyclictest17079-21turbostat19:45:000
2903999170,16cyclictest13640-21sed19:35:230
2903999170,16cyclictest12809-21cpuspeed_turbos23:25:130
2903999170,16cyclictest11554-21apt-config19:35:010
2903999170,15cyclictest3989-21H222:10:210
29041991614,1cyclictest0-21swapper/222:40:132
29041991614,1cyclictest0-21swapper/222:10:022
29041991614,1cyclictest0-21swapper/221:40:142
29041991614,1cyclictest0-21swapper/221:30:162
29041991613,2cyclictest1-21systemd22:55:212
2904199160,1cyclictest0-21swapper/223:40:132
2904199160,15cyclictest25662-21/usr/sbin/munin20:00:172
2904199160,15cyclictest1150-21tune2fs21:10:152
2904199160,15cyclictest0-21swapper/219:15:192
2904199160,15cyclictest0-21swapper/200:15:132
29040991614,1cyclictest0-21swapper/122:35:241
29040991614,1cyclictest0-21swapper/100:15:131
2904099160,1cyclictest0-21swapper/100:20:201
2904099160,15cyclictest6415-21awk22:15:201
2904099160,15cyclictest6386-21expr00:10:131
2904099160,15cyclictest22603-21expr22:45:141
2904099160,15cyclictest11030-21expr20:30:161
2904099160,15cyclictest0-21swapper/121:45:181
2904099160,15cyclictest0-21swapper/121:30:111
2904099160,15cyclictest0-21swapper/120:40:151
29039991614,1cyclictest0-21swapper/020:40:150
29039991614,1cyclictest0-21swapper/020:25:120
29039991613,2cyclictest32424-21tr00:00:140
2903999161,1cyclictest0-21swapper/019:55:110
2903999161,14cyclictest0-21swapper/022:55:110
2903999161,14cyclictest0-21swapper/000:25:470
2903999160,1cyclictest73632chrt20:23:250
2903999160,1cyclictest0-21swapper/021:25:140
2903999160,1cyclictest0-21swapper/020:05:020
2903999160,15cyclictest9-21ksoftirqd/022:50:140
2903999160,15cyclictest0-21swapper/022:05:150
2903999160,15cyclictest0-21swapper/020:55:130
2903999160,15cyclictest0-21swapper/019:15:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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