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2026-03-29 - 08:39
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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 highest latencies:
System rackdslot0.osadl.org (updated Sun Mar 29, 2026 00:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24016992517,7cyclictest0-21swapper/219:34:082
2401499240,3cyclictest28604-21munin-run22:10:000
2401699231,16cyclictest0-21swapper/221:27:502
2401699230,2cyclictest29068-21ntp_states23:05:182
2401699230,22cyclictest2643-21expr00:15:132
2401699230,21cyclictest399-20systemd-journal22:10:002
2401499234,1cyclictest0-21swapper/000:34:150
2401499232,1cyclictest205682sleep023:50:060
24014992313,5cyclictest23564-21fschecks_time22:00:150
2401499230,3cyclictest12236-21fschecks_count19:45:150
2401499230,3cyclictest10031-21munin-run20:40:000
2401499230,2cyclictest8508-21latency_hist00:25:010
2401499230,2cyclictest8363-21expr22:30:130
2401499230,2cyclictest2773-21cut19:30:010
2401499230,2cyclictest16162-21timerandwakeup00:35:220
2401499230,17cyclictest25259-21cron20:09:000
24016992215,6cyclictest14122-21timerwakeupswit23:35:222
24016992214,7cyclictest3985-21H222:10:212
24016992214,7cyclictest27761-21smartctl19:15:162
2401699221,1cyclictest3682chrt23:14:362
2401699221,15cyclictest12731-21chrt20:45:002
2401699220,21cyclictest17088-21idleruntime22:45:152
2401699220,1cyclictest0-21swapper/222:40:012
2401699220,16cyclictest31302-21head21:15:182
2401699220,16cyclictest31302-21head21:15:182
2401699220,16cyclictest17464-21grep21:50:132
2401699220,16cyclictest15109-21fschecks_time00:35:162
2401699220,15cyclictest23763-21anacron21:00:472
2401699220,15cyclictest0-21swapper/223:40:132
24014992214,7cyclictest7674-21grep21:30:180
2401499221,15cyclictest0-21swapper/020:40:090
2401499220,2cyclictest3419-21memory00:15:170
2401499220,1cyclictest0-21swapper/023:40:120
2401499220,1cyclictest0-21swapper/020:25:150
2401499220,16cyclictest3857-21tr22:20:170
2401499220,16cyclictest21402-21awk21:00:010
2401499220,16cyclictest19201-21seq19:57:320
2401699210,2cyclictest25637-21awk19:10:172
2401699210,2cyclictest19468-21expr22:50:132
2401699210,2cyclictest15233-21sshd20:46:552
2401699210,2cyclictest15233-21sshd20:46:552
2401699210,2cyclictest11160-21latency_hist00:30:012
2401699210,20cyclictest21968-21chrt20:02:462
2401699210,20cyclictest20854-21fschecks_time21:55:152
2401699210,20cyclictest178462sleep223:45:032
2401699210,20cyclictest0-21swapper/221:08:592
2401699210,20cyclictest0-21swapper/219:26:002
2401699210,20cyclictest0-21swapper/200:20:172
2401699210,20cyclictest0-21swapper/200:20:172
2401699210,1cyclictest0-21swapper/223:30:002
2401699210,1cyclictest0-21swapper/223:00:042
2401699210,1cyclictest0-21swapper/222:55:212
2401699210,1cyclictest0-21swapper/220:25:152
2401699210,1cyclictest0-21swapper/219:50:182
2401699210,1cyclictest0-21swapper/200:30:132
2401699210,15cyclictest4319-21timerandwakeup22:20:202
2401699210,15cyclictest26276-21expr20:10:152
2401699210,15cyclictest0-21swapper/221:48:192
2401699210,15cyclictest0-21swapper/221:35:152
2401699210,15cyclictest0-21swapper/220:39:002
2401699210,15cyclictest0-21swapper/220:20:212
2401699210,15cyclictest0-21swapper/219:25:012
2401699210,15cyclictest0-21swapper/200:10:152
2401699210,15cyclictest0-21swapper/200:00:002
24014992116,4cyclictest0-21swapper/021:02:570
24014992114,6cyclictest14885-21cat23:40:010
24014992114,6cyclictest14818-21expr19:50:140
24014992113,7cyclictest3264-21munin-run21:25:010
24014992113,7cyclictest28998-21cat22:10:110
24014992113,7cyclictest14701-21apache_processe21:45:110
2401499210,2cyclictest32509-21postgres23:10:290
2401499210,2cyclictest26334-21cat00:00:140
2401499210,2cyclictest24675-21expr19:10:130
2401499210,2cyclictest14150-21cat22:40:130
2401499210,20cyclictest31975-21chrt19:23:280
2401499210,20cyclictest29988-21cat21:15:010
2401499210,1cyclictest200822chrt23:48:540
2401499210,1cyclictest11530-21taskset23:31:320
2401499210,1cyclictest0-21swapper/023:09:540
2401499210,1cyclictest0-21swapper/022:25:210
2401499210,1cyclictest0-21swapper/021:25:180
2401499210,15cyclictest7789-21sed23:25:160
2401499210,15cyclictest3989-21H222:10:210
2401499210,15cyclictest0-21swapper/023:00:220
2401499210,15cyclictest0-21swapper/021:50:110
2401499210,14cyclictest0-21swapper/019:30:130
2401699202,17cyclictest0-21swapper/222:10:332
24016992014,5cyclictest0-21swapper/222:15:232
24016992014,5cyclictest0-21swapper/221:30:172
24016992014,5cyclictest0-21swapper/220:15:222
2401699200,1cyclictest0-21swapper/222:25:132
2401699200,1cyclictest0-21swapper/220:10:012
2401699200,1cyclictest0-21swapper/200:05:142
2401699200,19cyclictest9458-21expr19:40:142
2401699200,19cyclictest0-21swapper/223:31:562
2401699200,19cyclictest0-21swapper/223:20:172
2401699200,19cyclictest0-21swapper/222:45:012
2401699200,19cyclictest0-21swapper/222:00:132
2401699200,19cyclictest0-21swapper/221:20:142
2401699200,19cyclictest0-21swapper/219:45:262
2401699200,15cyclictest9748-21sed22:30:202
2401699200,14cyclictest0-21swapper/221:42:152
2401699200,14cyclictest0-21swapper/219:37:252
24015992017,2cyclictest993-21dbus-daemon19:50:211
24014992015,4cyclictest0-21swapper/022:55:170
24014992014,5cyclictest0-21swapper/000:20:580
24014992014,5cyclictest0-21swapper/000:05:150
24014992013,6cyclictest1337-21perf20:25:010
2401499200,2cyclictest26029-21latency_hist00:00:010
2401499200,1cyclictest0-21swapper/023:20:160
2401499200,1cyclictest0-21swapper/022:50:170
2401499200,1cyclictest0-21swapper/022:15:230
2401499200,1cyclictest0-21swapper/020:10:200
2401499200,19cyclictest0-21swapper/021:36:510
2401499200,19cyclictest0-21swapper/019:35:130
2401499200,16cyclictest20936-21idleruntime21:55:160
2401499200,16cyclictest16334-21egrep22:45:130
2401499200,14cyclictest0-21swapper/020:20:010
2401499200,14cyclictest0-21swapper/019:20:010
2401499200,0cyclictest0-21swapper/021:40:130
24016991914,3cyclictest0-21swapper/200:05:002
24016991913,5cyclictest1198-21cstates23:15:132
24016991913,5cyclictest0-21swapper/220:55:152
2401699190,18cyclictest0-21swapper/223:50:072
2401699190,15cyclictest0-21swapper/220:50:132
24015991915,3cyclictest0-21swapper/122:22:171
2401599190,18cyclictest0-21swapper/123:00:081
2401599190,16cyclictest1515-21lxd21:54:501
24014991914,5cyclictest0-21swapper/000:10:130
24014991914,4cyclictest8909-21apt-get19:40:130
24014991914,4cyclictest0-21swapper/022:35:140
24014991914,4cyclictest0-21swapper/021:05:150
24014991914,4cyclictest0-21swapper/020:30:130
24014991913,5cyclictest0-21swapper/020:45:160
24014991913,5cyclictest0-21swapper/020:45:160
24014991912,6cyclictest20585-21sort20:00:160
2401499190,1cyclictest301032chrt21:15:090
2401499190,1cyclictest301032chrt21:15:090
2401499190,1cyclictest0-21swapper/023:15:170
2401499190,0cyclictest0-21swapper/000:26:140
24016991812,6cyclictest0-21swapper/220:30:122
2401599182,15cyclictest3989-21H222:10:211
2401599182,15cyclictest3989-21H222:10:211
24015991818,0cyclictest0-21swapper/122:05:151
24015991815,1cyclictest0-21swapper/100:23:031
24015991815,1cyclictest0-21swapper/100:23:031
24015991814,3cyclictest0-21swapper/122:51:561
24015991814,2cyclictest9677-21grep21:35:151
24015991813,3cyclictest9313-21nfsd422:30:171
2401599181,16cyclictest7475-21fschecks_time23:25:141
2401599180,17cyclictest843-21systemd-network19:47:541
2401599180,17cyclictest3989-21H222:10:211
24015991715,1cyclictest24151-21date21:05:011
24015991714,2cyclictest9654-21idleruntime19:40:151
24015991714,2cyclictest3987-21H222:10:211
24015991714,2cyclictest32700-21ntp_kernel_err20:20:171
24015991714,2cyclictest2816-21timerandwakeup23:15:211
24015991714,2cyclictest24120-21perf23:00:001
24015991714,2cyclictest17534-21nfsd420:50:171
24015991713,3cyclictest4035-21H222:10:211
2401599171,1cyclictest0-21swapper/122:00:171
2401599170,2cyclictest9625-21cpuspeed_turbos23:30:131
2401599170,2cyclictest843-21systemd-network21:20:061
2401599170,2cyclictest3053-21systemd-logind22:18:521
2401599170,2cyclictest27263-21ntp_states20:10:201
2401599170,2cyclictest12500-21nfsd400:30:171
2401599170,16cyclictest4372-21sed00:15:211
2401599170,16cyclictest4263-21fschecks_count21:25:141
2401599170,16cyclictest3992-21H222:10:211
2401599170,16cyclictest3989-21H222:10:211
2401599170,16cyclictest3983-21H222:10:211
2401599170,16cyclictest30176-21mailstats20:15:221
2401599170,16cyclictest27707-21grep19:15:161
2401599170,16cyclictest21505-21kernelversion23:50:151
2401599170,16cyclictest2069-21systemd-udevd21:06:521
2401599170,15cyclictest3991-21H222:10:211
2401599170,15cyclictest0-21swapper/122:38:591
24015991614,1cyclictest0-21swapper/123:55:141
24015991614,1cyclictest0-21swapper/123:20:151
24015991614,1cyclictest0-21swapper/121:40:201
24015991614,1cyclictest0-21swapper/121:10:141
24015991614,1cyclictest0-21swapper/120:45:141
24015991614,1cyclictest0-21swapper/120:45:141
24015991614,1cyclictest0-21swapper/120:35:191
24015991614,1cyclictest0-21swapper/120:30:131
24015991614,1cyclictest0-21swapper/100:35:151
24015991614,1cyclictest0-21swapper/100:25:191
24015991614,1cyclictest0-21swapper/100:15:001
24015991613,2cyclictest3989-21H222:10:211
24015991613,2cyclictest28945-21nfsd423:05:181
24015991613,2cyclictest18688-21sendmail_mailtr19:55:231
2401599161,15cyclictest0-21swapper/123:11:401
2401599160,2cyclictest13911-21cat22:40:131
2401599160,1cyclictest0-21swapper/121:55:141
2401599160,1cyclictest0-21swapper/100:05:131
2401599160,15cyclictest4099-21H222:10:211
2401599160,15cyclictest28995-21/usr/sbin/munin22:10:111
2401599160,15cyclictest20498-21munin-plugin-st23:50:011
2401599160,15cyclictest16427-21grep23:40:171
2401599160,15cyclictest0-21swapper/123:35:131
2401599160,15cyclictest0-21swapper/121:30:141
2401599160,15cyclictest0-21swapper/120:40:231
2401599160,15cyclictest0-21swapper/120:25:131
2401599160,15cyclictest0-21swapper/120:05:131
2401599160,15cyclictest0-21swapper/119:20:131
2401599160,15cyclictest0-21swapper/100:00:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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