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2026-07-14 - 10:10
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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 Tue Jul 14, 2026 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1682599264,21cyclictest0-21swapper/119:33:101
16829992514,10cyclictest0-21swapper/220:55:162
16829992424,0cyclictest0-21swapper/222:33:392
1682599241,22cyclictest0-21swapper/100:13:591
1682599240,1cyclictest0-21swapper/122:40:001
16829992322,1cyclictest0-21swapper/222:41:002
16829992313,5cyclictest0-21swapper/222:00:132
1682999230,5cyclictest0-21swapper/223:00:152
1682999230,0cyclictest0-21swapper/222:05:122
16825992314,7cyclictest20992-21pzem_energy20:10:191
1682999220,20cyclictest14500-21snapd23:35:112
16825992217,4cyclictest0-21swapper/120:49:191
16825992216,5cyclictest0-21swapper/122:20:411
16825992214,7cyclictest23622-21if_eno100:05:181
1682599220,3cyclictest9021-21grep22:40:211
1682599220,3cyclictest11065-21munin-run21:50:001
1682599220,2cyclictest8411-21uname00:35:171
1682599220,2cyclictest454-21systemctl00:20:191
1682599220,21cyclictest26535-21if_enp1s019:25:161
1682599220,21cyclictest0-21swapper/121:30:001
1682599220,1cyclictest0-21swapper/120:02:501
1682599220,1cyclictest0-21swapper/119:40:011
1682599216,14cyclictest0-21swapper/121:57:351
16825992115,5cyclictest0-21swapper/119:40:211
16825992114,6cyclictest7914-21timerwakeupswit21:40:231
16825992114,6cyclictest4839-21grep19:45:151
16825992114,6cyclictest4839-21grep19:45:141
16825992114,6cyclictest25268-21expr20:20:141
16825992113,7cyclictest12594-21apache_accesses22:50:111
1682599211,1cyclictest6691-21chrt20:44:181
1682599210,2cyclictest28887-21nfsd420:25:191
1682599210,2cyclictest2635-21cstates23:30:131
1682599210,2cyclictest19246-21needreboot23:00:181
1682599210,2cyclictest17806-21cat23:55:181
1682599210,2cyclictest17191-21sed22:55:231
1682599210,2cyclictest15740-21pzem_voltage23:50:201
1682599210,2cyclictest12167-21sed19:55:201
1682599210,20cyclictest455-21plymouthd22:00:071
1682599210,20cyclictest3657-21fschecks_count21:35:151
1682599210,20cyclictest26516-21awk22:15:191
1682599210,20cyclictest0-21swapper/123:20:161
1682599210,20cyclictest0-21swapper/123:15:391
1682599210,20cyclictest0-21swapper/120:58:481
1682599210,1cyclictest0-21swapper/123:26:251
1682599210,16cyclictest29827-21awk00:15:171
1682599210,15cyclictest136442chrt23:48:321
1682599210,15cyclictest0-21swapper/121:10:171
1682599210,15cyclictest0-21swapper/120:50:151
1682599210,0cyclictest0-21swapper/100:25:131
16829992020,0cyclictest0-21swapper/221:20:572
16829992020,0cyclictest0-21swapper/200:38:402
16829992018,1cyclictest0-21swapper/223:22:502
16829992014,5cyclictest0-21swapper/220:01:462
16825992014,5cyclictest0-21swapper/121:04:031
16825992014,5cyclictest0-21swapper/119:15:231
16825992013,6cyclictest3983-21H222:10:211
16825992013,6cyclictest27912-21awk21:20:211
1682599200,2cyclictest8663-21hddtemp_smartct19:50:171
1682599200,2cyclictest22886-21chrt23:06:591
1682599200,2cyclictest12010-21chrt22:47:531
1682599200,1cyclictest19953-21ls22:05:141
1682599200,1cyclictest0-21swapper/123:42:191
1682599200,1cyclictest0-21swapper/122:34:271
1682599200,1cyclictest0-21swapper/121:30:121
1682599200,19cyclictest0-21swapper/121:50:271
1682599200,19cyclictest0-21swapper/121:05:161
1682599200,19cyclictest0-21swapper/120:30:141
1682599200,16cyclictest3983-21H222:10:211
1682599200,16cyclictest3527-21sshd20:37:141
1682599200,16cyclictest20566-21cat00:00:141
1682599200,15cyclictest455-21plymouthd00:30:151
1682599200,14cyclictest0-21swapper/122:10:131
1682599200,14cyclictest0-21swapper/121:20:011
1682599200,14cyclictest0-21swapper/120:15:151
1681899206,13cyclictest0-21swapper/023:42:460
1681899203,16cyclictest18637-21expr21:05:140
16818992011,8cyclictest0-21swapper/022:48:360
1682999192,2cyclictest20486-21expr00:00:142
16829991917,1cyclictest0-21swapper/221:44:062
16829991913,1cyclictest0-21swapper/221:50:222
1682999190,2cyclictest4099-21H222:10:212
1682999190,16cyclictest3991-21H222:10:212
16825991914,4cyclictest0-21swapper/120:06:191
1682599190,15cyclictest23691-21missed_timers19:20:181
1682599190,15cyclictest23691-21missed_timers19:20:181
1682599190,0cyclictest0-21swapper/122:25:111
1681899193,15cyclictest9-21ksoftirqd/023:48:400
16818991914,3cyclictest29590-21pzem_voltage22:20:210
1681899190,18cyclictest0-21swapper/019:34:050
1681899190,16cyclictest3987-21H222:10:210
1681899190,16cyclictest3983-21H222:10:210
1682999182,2cyclictest3989-21H222:10:212
1682999182,2cyclictest12266-21if_eno123:45:152
1682999182,15cyclictest0-21swapper/222:29:482
16829991818,0cyclictest0-21swapper/222:20:042
16829991818,0cyclictest0-21swapper/200:22:422
16829991816,1cyclictest28-21ksoftirqd/223:41:592
16829991816,1cyclictest28-21ksoftirqd/220:54:192
16829991816,1cyclictest28-21ksoftirqd/200:05:072
16829991814,3cyclictest4035-21H222:10:212
1682999181,2cyclictest30123-21switchtime19:30:222
1682999181,16cyclictest24630-21chrt19:21:302
1682999181,16cyclictest24630-21chrt19:21:302
1682999181,16cyclictest1100-21snmpd22:58:162
1682999180,2cyclictest3981-21H222:10:212
1682999180,2cyclictest0-21swapper/220:10:172
1682999180,17cyclictest843-21systemd-network21:15:362
1682999180,17cyclictest4099-21H222:10:212
1682999180,17cyclictest3991-21H222:10:212
1682999180,16cyclictest2529-21idleruntime19:40:162
1682999180,16cyclictest15521-21cpuspeed_turbos21:00:152
1682999180,16cyclictest14496-21snapd22:15:102
1682999180,15cyclictest3985-21H222:10:212
1682999180,15cyclictest3976-21H222:10:212
1681899183,1cyclictest0-21swapper/020:40:190
1681899182,15cyclictest3989-21H222:10:210
16818991816,1cyclictest9-21ksoftirqd/000:33:230
16818991816,1cyclictest0-21swapper/022:25:220
16818991815,2cyclictest18634-21proxymap20:06:450
16818991814,3cyclictest0-21swapper/021:04:080
16818991813,4cyclictest4099-21H222:10:210
1681899181,2cyclictest25757-21chrt23:11:460
1681899181,2cyclictest16353-21chrt21:58:100
1681899180,1cyclictest3989-21H222:10:210
1681899180,17cyclictest22350-21nfsd421:10:170
1681899180,16cyclictest4035-21H222:10:210
1681899180,15cyclictest3981-21H222:10:210
1682999172,1cyclictest28-21ksoftirqd/221:09:592
16829991715,1cyclictest0-21swapper/219:55:172
16829991714,2cyclictest9310-21df21:45:142
16829991714,2cyclictest4822-21df_inode22:35:142
16829991714,2cyclictest4763-21apache_accesses00:30:102
16829991714,2cyclictest3979-21H222:10:212
16829991714,2cyclictest27103-21ntpq19:25:192
16829991714,2cyclictest2439-21nfsd420:35:172
16829991713,3cyclictest3976-21H222:10:212
1682999170,2cyclictest4631-21grep20:40:142
1682999170,2cyclictest4099-21H222:10:212
1682999170,2cyclictest3989-21H222:10:212
1682999170,2cyclictest3985-21H222:10:212
1682999170,2cyclictest24952-21apache_accesses20:20:112
1682999170,2cyclictest22574-21apache_volume22:10:122
1682999170,16cyclictest9465-21pzem_current19:50:222
1682999170,16cyclictest3991-21H222:10:212
1682999170,16cyclictest3991-21H222:10:212
1682999170,16cyclictest29130-21df_inode00:15:132
1682999170,16cyclictest27681-21apache_volume20:25:132
1682999170,16cyclictest25424-21cat23:10:212
1682999170,16cyclictest2372-21apache_processe23:30:112
1682999170,16cyclictest21010-21apache_volume21:10:112
1682999170,16cyclictest18534-21awk20:05:252
1682999170,16cyclictest15002-21/usr/sbin/munin21:55:172
1682999170,16cyclictest14785-21df_inode23:50:152
1682999170,16cyclictest0-21swapper/223:06:242
1681899172,1cyclictest4099-21H222:10:210
16818991715,1cyclictest0-21swapper/022:35:070
16818991714,2cyclictest8637-21munin-run21:45:010
16818991714,2cyclictest7955-21apache_processe19:50:130
16818991714,2cyclictest3983-21H222:10:210
16818991714,2cyclictest32018-21cat21:30:120
16818991714,2cyclictest30753-21pzem_voltage21:25:210
16818991714,2cyclictest27129-21ntpq19:25:200
16818991714,2cyclictest24189-21sensors_temp22:10:210
16818991714,2cyclictest1843-21runrttasks23:28:450
16818991714,2cyclictest0-21swapper/021:40:010
16818991714,2cyclictest0-21swapper/019:45:190
16818991714,2cyclictest0-21swapper/019:45:190
1681899171,15cyclictest9-21ksoftirqd/023:34:210
1681899170,2cyclictest3987-21H222:10:210
1681899170,2cyclictest3985-21H222:10:210
1681899170,2cyclictest3983-21H222:10:210
1681899170,2cyclictest3981-21H222:10:210
1681899170,2cyclictest3044-21nfsd400:25:190
1681899170,2cyclictest23036-21/usr/sbin/munin20:15:170
1681899170,2cyclictest19146-21chrt19:11:260
1681899170,2cyclictest10002-21tr20:50:140
1681899170,1cyclictest4035-21H222:10:210
1681899170,1cyclictest0-21swapper/020:30:010
1681899170,16cyclictest7517-21expr20:45:150
1681899170,16cyclictest5398-21/usr/sbin/munin23:35:210
1681899170,16cyclictest4391-21cat20:40:010
1681899170,16cyclictest4099-21H222:10:210
1681899170,16cyclictest3989-21H222:10:210
1681899170,16cyclictest3983-21H222:10:210
1681899170,16cyclictest31302-21/usr/sbin/munin00:20:100
1681899170,16cyclictest29252-21sh00:15:150
1681899170,16cyclictest24988-21python319:25:020
1681899170,16cyclictest24988-21python319:25:010
1681899170,16cyclictest23967-21/usr/sbin/munin00:05:200
1681899170,16cyclictest22171-21trivial-rewrite00:02:160
1681899170,16cyclictest18347-21nvmesmart_nvme023:55:190
1681899170,16cyclictest17270-21expr22:00:140
1681899170,16cyclictest14423-21df_inode20:00:160
16829991614,1cyclictest17097-21/usr/sbin/munin19:10:142
16829991614,1cyclictest0-21swapper/222:50:152
16818991614,1cyclictest0-21swapper/022:50:130
16818991614,1cyclictest0-21swapper/021:50:120
16818991614,1cyclictest0-21swapper/020:55:200
16818991614,1cyclictest0-21swapper/019:40:140
1681899160,1cyclictest0-21swapper/023:20:170
1681899160,15cyclictest3987-21H222:10:210
1681899160,15cyclictest20448-21fschecks_count19:15:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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