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2026-04-27 - 08:05
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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 Mon Apr 27, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1043499210,20cyclictest0-21swapper/200:38:172
1043299212,16cyclictest0-21swapper/123:21:441
1043299210,18cyclictest0-21swapper/123:40:421
10431992114,4cyclictest0-21swapper/022:35:540
1043299202,17cyclictest31850irq/133-nvme0q219:35:011
1043299200,6cyclictest0-21swapper/119:45:011
1043299200,4cyclictest0-21swapper/122:40:121
1043499192,2cyclictest4099-21H222:10:212
10434991916,2cyclictest20090-21latency_hist23:15:012
10434991916,2cyclictest10863-21missed_timers20:05:172
1043499190,16cyclictest3991-21H222:10:212
1043299193,1cyclictest0-21swapper/121:59:181
1043299191,17cyclictest0-21swapper/122:15:011
10431991916,2cyclictest1859-21chrt21:42:240
1043199190,17cyclictest31668-21https21:40:010
1043499182,15cyclictest28-21ksoftirqd/221:55:192
10434991815,2cyclictest3987-21H222:10:212
1043499181,2cyclictest25334-21smtpd23:22:202
1043499181,1cyclictest0-21swapper/219:37:162
1043499181,16cyclictest3709-21qmgr20:34:322
1043499180,3cyclictest0-21swapper/221:25:212
1043499180,17cyclictest4099-21H222:10:212
1043499180,16cyclictest3991-21H222:10:212
1043499180,16cyclictest3979-21H222:10:212
1043299182,15cyclictest0-21swapper/122:25:131
10432991816,1cyclictest21-21ksoftirqd/119:39:091
10432991815,2cyclictest863-21avahi-daemon22:05:221
10432991815,1cyclictest0-21swapper/120:34:051
10432991814,3cyclictest2838-21cron20:25:001
10432991814,3cyclictest11215-21cut20:05:191
10432991814,3cyclictest0-21swapper/100:16:301
1043299181,2cyclictest5156-21nfsd420:50:191
10432991810,4cyclictest0-21swapper/122:36:191
1043299180,17cyclictest4035-21H222:10:211
1043299180,17cyclictest0-21swapper/120:10:151
1043299180,16cyclictest1829-21systemd-journal21:45:021
1043199182,15cyclictest0-21swapper/021:30:140
10431991815,2cyclictest12471-21proc_pri22:00:200
1043199181,2cyclictest21828-21awk23:15:180
1043199180,2cyclictest3989-21H222:10:210
1043199180,2cyclictest3983-21H222:10:210
1043199180,17cyclictest843-21systemd-network19:38:340
1043199180,15cyclictest27428-21cat00:25:000
10434991715,1cyclictest0-21swapper/223:55:142
10434991715,1cyclictest0-21swapper/223:35:122
10434991714,2cyclictest4225-21processes23:40:202
10434991714,2cyclictest3991-21H222:10:212
10434991714,2cyclictest27424-21pluginstate21:30:202
10434991714,2cyclictest2486-21sendmail_mailtr22:40:212
10434991714,2cyclictest2069-21systemd-udevd00:34:512
10434991714,2cyclictest17763-21awk00:05:172
10434991714,2cyclictest14545-21snapd23:45:212
10434991714,2cyclictest1351-21lxd22:04:502
10434991714,2cyclictest12260-21cpuspeed_turbos23:00:132
1043499171,15cyclictest0-21swapper/222:10:132
1043499170,2cyclictest3985-21H222:10:212
1043499170,2cyclictest3351-21lxd00:10:342
1043499170,2cyclictest27518-21sendmail_mailqu23:25:222
1043499170,2cyclictest22677-21sed20:25:232
1043499170,2cyclictest15286-21cpuspeed_turbos21:10:132
1043499170,2cyclictest14501-21snapd20:35:282
1043499170,1cyclictest0-21swapper/220:45:332
1043499170,1cyclictest0-21swapper/219:22:462
1043499170,16cyclictest9450-21awk23:50:182
1043499170,16cyclictest7939-21date21:55:012
1043499170,16cyclictest3983-21H222:10:212
1043499170,16cyclictest32724-21fschecks_time21:40:142
1043499170,16cyclictest28970-21nvmesmart_nvme022:30:192
1043499170,16cyclictest2469-21/usr/sbin/munin21:45:222
1043499170,16cyclictest24292-21chrt22:23:262
1043499170,16cyclictest21746-21grep21:20:192
1043499170,16cyclictest21216-21sed19:25:222
1043499170,16cyclictest16641-21nfsd420:15:182
1043499170,16cyclictest14861-21/usr/sbin/munin23:05:142
1043499170,16cyclictest14723-21nfsd419:15:192
1043499170,16cyclictest10794-21ntp_states22:55:182
1043499170,16cyclictest0-21swapper/222:25:202
10432991715,1cyclictest32293-21chrt20:44:021
10432991715,1cyclictest30012chrt20:46:181
10432991715,1cyclictest156642sleep100:00:401
10432991715,1cyclictest0-21swapper/121:40:151
10432991715,1cyclictest0-21swapper/100:25:221
10432991714,2cyclictest8080-21ntpq20:55:211
10432991714,2cyclictest3991-21H222:10:211
10432991714,2cyclictest28875-21awk22:30:171
10432991714,2cyclictest16257-21nfsd421:10:171
1043299171,15cyclictest32202-21nfsd419:45:171
1043299171,15cyclictest2897-21seq00:36:351
1043299171,15cyclictest20705-21cpuspeed_turbos21:20:141
1043299170,2cyclictest8817-21fschecks_count23:50:151
1043299170,2cyclictest3979-21H222:10:211
1043299170,2cyclictest10918-21cut19:10:131
1043299170,16cyclictest31286-21cat21:40:001
1043299170,16cyclictest29901-21nfsd423:30:171
1043299170,16cyclictest28285-21munin-run23:30:001
1043299170,16cyclictest27079-21dpkg20:35:021
1043299170,16cyclictest25082-21expr00:20:131
1043299170,16cyclictest24636-21ntp_kernel_pll_21:25:191
1043299170,16cyclictest19974-21fschecks_count22:15:141
1043299170,16cyclictest19807-21cat19:25:151
1043299170,16cyclictest18942-21head23:10:181
1043299170,16cyclictest16543-21tr00:05:121
1043299170,16cyclictest1539-21expr19:50:151
1043299170,16cyclictest12254-21nfsd422:00:181
1043299170,16cyclictest11696-21latency_hist23:00:001
1043299170,16cyclictest1035-21thermald00:10:191
1043299170,16cyclictest0-21swapper/120:25:151
10431991715,1cyclictest10893-21proc_pri21:00:210
10431991715,1cyclictest0-21swapper/021:27:540
10431991714,2cyclictest9370-21/usr/sbin/munin22:55:210
10431991714,2cyclictest5728-21grep23:45:130
10431991714,2cyclictest4383-21expr20:50:150
10431991714,2cyclictest3983-21H222:10:210
10431991714,2cyclictest3439-21perf00:40:000
10431991714,2cyclictest29616-21uname23:30:160
10431991714,2cyclictest26252-21expr23:25:150
10431991714,2cyclictest22315-21ntp_states20:25:200
10431991714,2cyclictest2069-21systemd-udevd23:40:510
10431991714,2cyclictest17938-21nfsd422:10:180
10431991714,2cyclictest0-21swapper/020:20:230
1043199171,1cyclictest0-21swapper/020:45:140
1043199170,2cyclictest3989-21H222:10:210
1043199170,2cyclictest3983-21H222:10:210
1043199170,2cyclictest32012-21sed00:30:220
1043199170,2cyclictest17709-21nfsd400:05:170
1043199170,2cyclictest1516-21lxd21:14:500
1043199170,1cyclictest4099-21H222:10:210
1043199170,16cyclictest6024-21anvil22:50:260
1043199170,16cyclictest5723-21ntp_offset19:55:190
1043199170,16cyclictest3976-21H222:10:210
1043199170,16cyclictest3954-21VM22:10:210
1043199170,16cyclictest31643-21gdbus23:35:010
1043199170,16cyclictest3053-21systemd-logind23:22:510
1043199170,16cyclictest3053-21systemd-logind19:30:520
1043199170,16cyclictest2283-21ntpq22:40:190
1043199170,16cyclictest20025-21df_inode00:10:130
1043199170,16cyclictest16242-21ntp_kernel_err23:05:190
1043199170,16cyclictest15025-21grep22:05:180
1043199170,16cyclictest14906-21nfsd400:00:190
1043199170,16cyclictest0-21swapper/020:15:140
1043199170,16cyclictest0-21swapper/019:40:020
1043199170,15cyclictest4035-21H222:10:210
1043199170,15cyclictest25339-21expr22:25:140
10434991614,1cyclictest28551-21kernelversion00:25:182
10434991614,1cyclictest25490-21df00:20:132
10434991614,1cyclictest13884-21expr00:00:142
10434991614,1cyclictest0-21swapper/222:50:162
10434991614,1cyclictest0-21swapper/222:35:152
10434991614,1cyclictest0-21swapper/222:15:132
10434991614,1cyclictest0-21swapper/222:05:192
10434991614,1cyclictest0-21swapper/221:39:422
10434991614,1cyclictest0-21swapper/219:55:202
10434991614,1cyclictest0-21swapper/219:40:132
1043499160,1cyclictest12134-21/usr/sbin/munin21:05:132
1043499160,1cyclictest0-21swapper/223:15:152
1043499160,15cyclictest6966-21expr20:55:142
1043499160,15cyclictest22623-21expr00:15:152
1043499160,15cyclictest0-21swapper/223:30:172
1043499160,15cyclictest0-21swapper/220:50:142
1043499160,15cyclictest0-21swapper/220:40:162
10432991614,1cyclictest0-21swapper/123:15:131
10432991614,1cyclictest0-21swapper/123:05:131
10432991614,1cyclictest0-21swapper/122:50:171
10432991614,1cyclictest0-21swapper/121:50:151
10432991614,1cyclictest0-21swapper/121:19:551
10432991614,1cyclictest0-21swapper/100:30:161
10432991613,2cyclictest6492-21latency23:45:161
10432991613,2cyclictest32062-21cpuspeed_turbos23:35:121
10432991613,2cyclictest14694-21nfsd419:15:181
1043299160,2cyclictest7166-21/usr/sbin/munin20:00:131
1043299160,2cyclictest10248-21cat21:00:171
1043299160,1cyclictest22131-21egrep22:20:141
1043299160,15cyclictest0-21swapper/123:00:161
1043299160,15cyclictest0-21swapper/121:30:141
1043299160,15cyclictest0-21swapper/121:05:131
1043299160,15cyclictest0-21swapper/120:15:141
10431991614,1cyclictest9049-21cat23:50:160
10431991614,1cyclictest3976-21H222:10:210
10431991614,1cyclictest0-21swapper/023:10:120
10431991614,1cyclictest0-21swapper/022:30:130
10431991614,1cyclictest0-21swapper/022:20:180
10431991614,1cyclictest0-21swapper/021:55:120
10431991614,1cyclictest0-21swapper/020:05:130
10431991614,1cyclictest0-21swapper/019:45:170
10431991614,1cyclictest0-21swapper/000:15:200
10431991613,2cyclictest4379-21expr22:45:140
10431991613,2cyclictest20119-21idleruntime19:25:170
10431991613,2cyclictest10940-21apache_accesses23:55:110
1043199161,1cyclictest0-21swapper/000:25:220
1043199160,15cyclictest3450-21gsd-color23:00:170
1043199160,15cyclictest20535-21apache_accesses21:20:120
1043199160,15cyclictest19451-21cpuspeed_turbos22:15:130
1043199160,15cyclictest1237-21apache_processe19:50:130
1043199160,15cyclictest0-21swapper/021:15:200
10434991513,1cyclictest0-21swapper/221:15:172
10432991513,1cyclictest0-21swapper/123:55:171
10431991514,0cyclictest0-21swapper/021:45:130
10431991513,1cyclictest0-21swapper/021:05:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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