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2026-06-23 - 06:27
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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 376 highest latencies:
System rackdslot0.osadl.org (updated Tue Jun 23, 2026 00:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20412993331,2cyclictest0-21swapper/121:00:351
20412993322,11cyclictest0-21swapper/123:39:001
20412993230,2cyclictest0-21swapper/120:43:091
20412993230,2cyclictest0-21swapper/100:27:191
20412993230,0cyclictest0-21swapper/122:29:431
20412993130,0cyclictest0-21swapper/121:06:421
20412993029,1cyclictest15157-21kworker/1:120:36:511
20412993029,0cyclictest0-21swapper/122:21:101
20412993028,2cyclictest0-21swapper/100:33:061
20412992929,0cyclictest21-21ksoftirqd/120:54:491
20412992928,0cyclictest0-21swapper/123:53:181
20412992928,0cyclictest0-21swapper/123:24:151
20412992919,10cyclictest0-21swapper/122:53:251
20412992818,9cyclictest15157-21kworker/1:121:54:201
20412992818,10cyclictest0-21swapper/120:31:301
20412992817,0cyclictest0-21swapper/120:22:491
20412992718,9cyclictest0-21swapper/123:25:411
20412992718,0cyclictest0-21swapper/120:17:311
20408992624,1cyclictest1100-21snmpd21:59:080
20415992424,0cyclictest0-21swapper/221:00:082
2040899248,15cyclictest9-21ksoftirqd/022:15:230
2041299235,2cyclictest0-21swapper/120:58:411
2041299230,22cyclictest0-21swapper/120:46:321
2040899230,5cyclictest0-21swapper/020:25:320
2040899230,5cyclictest0-21swapper/000:17:190
2040899230,1cyclictest0-21swapper/020:04:240
20415992222,0cyclictest0-21swapper/222:16:282
20415992220,1cyclictest455-21plymouthd23:50:312
20415992121,0cyclictest0-21swapper/200:39:252
20408992115,3cyclictest0-21swapper/023:36:330
2041599203,16cyclictest12130-21timerandwakeup20:45:222
20415992020,0cyclictest0-21swapper/220:38:512
2041299204,16cyclictest0-21swapper/123:43:191
2041299204,15cyclictest0-21swapper/121:39:041
20412992016,1cyclictest111rcu_preempt19:32:311
2041599193,15cyclictest0-21swapper/200:26:352
20415991919,0cyclictest0-21swapper/200:19:452
20415991917,1cyclictest19411-21apache_volume22:55:112
20415991916,2cyclictest993-21dbus-daemon19:55:022
20415991913,5cyclictest0-21swapper/220:19:342
2041599190,2cyclictest3987-21H222:10:212
2041599190,19cyclictest0-21swapper/222:26:292
2041599190,18cyclictest843-21systemd-network21:11:242
2041599190,18cyclictest843-21systemd-network21:11:232
2041599190,0cyclictest0-21swapper/221:21:052
2041299194,0cyclictest0-21swapper/122:49:361
20412991919,0cyclictest0-21swapper/100:10:341
2041299190,4cyclictest25415-21grep20:15:001
2041299190,16cyclictest3983-21H222:10:211
2041299190,16cyclictest3976-21H222:10:211
2040899192,16cyclictest19843-21nfsd423:50:170
2040899192,16cyclictest0-21swapper/020:37:060
20408991917,1cyclictest0-21swapper/021:49:410
20408991917,1cyclictest0-21swapper/000:00:290
20408991916,2cyclictest16629-21http_loadtime23:45:150
20408991915,3cyclictest26443-21fschecks_count20:15:130
2040899190,2cyclictest3985-21H222:10:210
2040899190,16cyclictest3989-21H222:10:210
2040899190,16cyclictest3989-21H222:10:210
2040899190,0cyclictest0-21swapper/021:20:170
2041599183,9cyclictest10868-21/usr/sbin/munin19:50:012
2041599182,15cyclictest0-21swapper/200:08:242
20415991818,0cyclictest0-21swapper/221:42:532
20415991816,1cyclictest14563-21ntp_offset23:40:192
20415991816,1cyclictest0-21swapper/223:20:022
20415991815,2cyclictest4880-21/usr/sbin/munin00:20:192
20415991815,2cyclictest1100-21snmpd21:32:282
20415991814,3cyclictest3979-21H222:10:212
20415991814,3cyclictest32210-21irqstats20:25:182
20415991813,1cyclictest0-21swapper/222:02:582
20415991813,1cyclictest0-21swapper/222:02:572
2041599181,2cyclictest25033-21cut19:15:182
2041599180,3cyclictest843-21systemd-network21:09:212
2041599180,2cyclictest3976-21H222:10:212
2041599180,17cyclictest3979-21H222:10:212
2041599180,16cyclictest3985-21H222:10:212
2041599180,15cyclictest4035-21H222:10:212
2041599180,0cyclictest0-21swapper/200:02:182
2041299182,15cyclictest0-21swapper/122:00:131
2041299182,15cyclictest0-21swapper/122:00:131
20412991816,1cyclictest3986-21H222:10:211
20412991816,1cyclictest21-21ksoftirqd/100:07:591
20412991815,2cyclictest25739-21ps21:10:211
20412991815,2cyclictest25739-21ps21:10:211
20412991815,2cyclictest10056-21netstat21:40:171
20412991814,3cyclictest31792-21runrttasks21:21:351
2041299181,1cyclictest3985-21H222:10:211
2041299181,16cyclictest27010-21/usr/sbin/munin21:15:111
2041299180,2cyclictest3983-21H222:10:211
2041299180,17cyclictest4035-21H222:10:211
2041299180,17cyclictest3991-21H222:10:211
20408991817,1cyclictest22488-21kworker/0:122:39:390
20408991816,1cyclictest0-21swapper/022:21:280
20408991815,2cyclictest12612-21missed_timers00:35:180
20408991814,3cyclictest3991-21H222:10:210
20408991814,3cyclictest16634-21cron21:55:000
2040899181,1cyclictest0-21swapper/020:40:490
2040899180,2cyclictest4035-21H222:10:210
2040899180,2cyclictest3991-21H222:10:210
2040899180,2cyclictest3989-21H222:10:210
2040899180,17cyclictest3985-21H222:10:210
2041599172,1cyclictest0-21swapper/219:36:492
20415991716,1cyclictest28-21ksoftirqd/222:46:512
20415991715,1cyclictest16095-21cpuspeed_turbos23:45:122
20415991714,2cyclictest7014-21nfsd419:40:182
20415991714,2cyclictest3985-21H222:10:212
20415991714,2cyclictest32757-21memory22:20:172
20415991714,2cyclictest28577-21apache_processe20:20:112
20415991714,2cyclictest27455-21wc23:10:002
20415991714,2cyclictest25821-21apache_accesses22:10:122
20415991714,2cyclictest21366-21apache_volume23:55:112
20415991714,2cyclictest17375-21expr21:55:132
20415991714,2cyclictest15892-21snapd22:35:532
20415991714,2cyclictest12202-21ntp_states22:40:172
2041599170,2cyclictest9048-21cstates00:30:142
2041599170,2cyclictest3989-21H222:10:212
2041599170,2cyclictest3983-21H222:10:212
2041599170,2cyclictest29842-21chrt00:10:132
2041599170,2cyclictest1929-21cpuspeed_turbos20:30:142
2041599170,2cyclictest18952-21processes20:00:212
2041599170,1cyclictest0-21swapper/222:30:082
2041599170,16cyclictest7382-21gpgv23:30:022
2041599170,16cyclictest3987-21H222:10:212
2041599170,16cyclictest31077-21df_inode23:15:142
2041599170,16cyclictest31077-21df_inode23:15:132
2041599170,16cyclictest27981-21nvmesmart_nvme019:20:192
2041599170,16cyclictest23101-21apache_processe20:10:132
2041599170,16cyclictest20928-21hddtemp_smartct20:05:152
2041599170,16cyclictest15867-21apache_accesses20:55:122
2041599170,16cyclictest0-21swapper/221:50:082
20412991715,1cyclictest1552-21ntp_kernel_pll_21:25:181
20412991714,2cyclictest5692-21expr22:30:141
20412991714,2cyclictest5601-21lxd19:44:491
20412991714,2cyclictest3989-21H222:10:211
20412991714,2cyclictest24160-21nfsd422:05:181
20412991714,2cyclictest21994-21fschecks_count23:55:141
20412991714,2cyclictest20959-21idleruntime20:05:161
20412991714,2cyclictest12267-21proc_pri22:40:191
20412991714,2cyclictest10016-21munin-run23:35:001
2041299171,15cyclictest27780-21nfsd419:20:171
2041299171,15cyclictest0-21swapper/121:57:151
2041299170,2cyclictest28702-21apt-config22:15:031
2041299170,2cyclictest23614-21/usr/sbin/munin23:00:221
2041299170,2cyclictest19777-21cron20:05:011
2041299170,2cyclictest14505-21snapd23:07:541
2041299170,16cyclictest870-21systemd-logind19:58:521
2041299170,16cyclictest3989-21H222:10:211
2041299170,16cyclictest3987-21H222:10:211
2041299170,16cyclictest3983-21H222:10:211
2041299170,16cyclictest23655-21munin-run19:15:021
2041299170,16cyclictest19674-21ls22:55:141
2041299170,16cyclictest11577-21cpu00:35:141
20408991715,1cyclictest0-21swapper/000:25:490
20408991714,2cyclictest3985-21H222:10:210
20408991714,2cyclictest3983-21H222:10:210
20408991714,2cyclictest3983-21H222:10:210
20408991714,2cyclictest3983-21H222:10:210
20408991714,2cyclictest21312-21cron21:05:010
20408991714,2cyclictest15872-21/usr/sbin/munin20:55:130
20408991714,2cyclictest14732-21dpkg19:55:120
20408991714,2cyclictest12014-21ls19:50:140
2040899171,15cyclictest3053-21systemd-logind20:50:510
2040899171,15cyclictest0-21swapper/020:33:500
2040899170,2cyclictest8078-21taskset21:37:560
2040899170,2cyclictest3991-21H222:10:210
2040899170,2cyclictest3991-21H222:10:210
2040899170,2cyclictest3985-21H222:10:210
2040899170,2cyclictest3983-21H222:10:210
2040899170,2cyclictest3004-21systemctl23:20:200
2040899170,2cyclictest25971-21postgres19:18:070
2040899170,2cyclictest23859-21uname22:05:180
2040899170,2cyclictest10799-21cat20:45:150
2040899170,1cyclictest0-21swapper/023:59:250
2040899170,16cyclictest7547-21timerwakeupswit19:40:200
2040899170,16cyclictest5604-21latency_hist19:40:020
2040899170,16cyclictest3991-21H222:10:210
2040899170,16cyclictest3987-21H222:10:210
2040899170,16cyclictest3985-21H222:10:210
2040899170,16cyclictest3981-21H222:10:210
2040899170,16cyclictest3976-21H222:10:210
2040899170,16cyclictest26755-21/usr/sbin/munin23:05:220
2040899170,16cyclictest22742-21df_inode23:00:160
2040899170,16cyclictest13732-21expr23:40:130
20415991614,1cyclictest0-21swapper/219:10:012
20415991613,2cyclictest30641-21awk19:25:172
2041599160,15cyclictest0-21swapper/221:45:122
2041599160,15cyclictest0-21swapper/219:50:222
20412991614,1cyclictest0-21swapper/119:50:131
2041299160,1cyclictest0-21swapper/123:15:141
2041299160,1cyclictest0-21swapper/123:15:131
2041299160,15cyclictest8793-21if_lxdbr022:35:171
2041299160,15cyclictest11822-21/usr/sbin/munin21:45:111
2041299160,15cyclictest0-21swapper/119:25:101
20408991614,1cyclictest30963-21cat23:15:140
20408991614,1cyclictest30963-21cat23:15:140
20408991614,1cyclictest0-21swapper/021:30:140
20408991614,1cyclictest0-21swapper/021:15:140
20408991614,1cyclictest0-21swapper/019:25:190
20408991614,1cyclictest0-21swapper/000:05:140
20408991613,2cyclictest3979-21H222:10:210
2040899160,1cyclictest15939-21python322:50:000
2040899160,15cyclictest5350-21cpuspeed_turbos22:30:130
2040899160,15cyclictest1274-21runrttasks22:45:100
2040899160,15cyclictest12186-21ntpq22:40:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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