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2026-07-03 - 01:05
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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 Thu Jul 02, 2026 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2271399264,9cyclictest20923-21perf08:05:010
2271399264,9cyclictest20923-21perf08:05:000
2271499240,3cyclictest0-21swapper/112:03:271
2271599233,13cyclictest20948-21python310:54:592
22715992314,5cyclictest0-21swapper/207:48:112
2271599230,5cyclictest0-21swapper/209:39:582
22714992313,6cyclictest3991-21H222:10:211
2271599220,18cyclictest0-21swapper/208:30:562
2271499222,16cyclictest25263-21sed12:00:011
22714992215,6cyclictest20662-21irqstats09:55:181
2271499220,2cyclictest8211-21sed08:35:191
2271499220,2cyclictest13149-21apache_volume08:45:111
2271499220,2cyclictest12526-21if_eno111:35:161
2271499220,21cyclictest0-21swapper/109:20:161
2271499220,20cyclictest3979-21H222:10:211
2271499220,16cyclictest30613-21expr11:10:151
2271499220,15cyclictest0-21swapper/108:15:021
2271599210,20cyclictest0-21swapper/211:06:332
22714992114,6cyclictest24923-21ls08:10:121
22714992114,6cyclictest22271-21df10:55:141
22714992114,5cyclictest0-21swapper/110:00:191
2271499211,16cyclictest2957-21rtkit-daemon10:06:221
2271499210,2cyclictest6505-21cpuspeed_turbos11:25:111
2271499210,2cyclictest16489-21grep11:40:221
2271499210,20cyclictest3983-21H222:10:211
2271499210,20cyclictest22764-21cat11:55:011
2271499210,20cyclictest14802chrt12:13:401
2271499210,1cyclictest36432chrt10:22:231
2271499210,1cyclictest0-21swapper/112:20:161
2271499210,1cyclictest0-21swapper/107:55:201
2271499210,15cyclictest15886-21apache_processe08:50:121
2271499210,15cyclictest0-21swapper/108:00:121
2271499210,15cyclictest0-21swapper/108:00:121
2271499210,15cyclictest0-21swapper/107:15:151
22715992013,6cyclictest870-21systemd-logind12:18:522
22715992013,6cyclictest870-21systemd-logind12:18:522
22714992015,4cyclictest11724-21grep09:40:131
22714992014,6cyclictest0-21swapper/110:10:131
22714992014,5cyclictest3976-21H222:10:211
22714992014,5cyclictest10240-21apt-config08:40:021
22714992014,5cyclictest0-21swapper/112:25:141
22714992014,5cyclictest0-21swapper/109:25:221
22714992014,5cyclictest0-21swapper/107:29:011
22714992013,6cyclictest0-21swapper/107:40:001
2271499200,2cyclictest4711-21cat10:25:141
2271499200,2cyclictest3979-21H222:10:211
2271499200,1cyclictest4035-21H222:10:211
2271499200,1cyclictest28719-21apt-get12:05:121
2271499200,1cyclictest0-21swapper/107:50:221
2271499200,19cyclictest3989-21H222:10:211
2271499200,19cyclictest0-21swapper/109:17:181
2271499200,18cyclictest0-21swapper/108:55:121
2271499200,16cyclictest3985-21H222:10:211
2271499200,15cyclictest291812chrt11:06:111
2271499200,15cyclictest26667-21munin-run09:09:591
2271499200,15cyclictest0-21swapper/111:20:001
2271499200,14cyclictest0-21swapper/107:25:021
2271399202,3cyclictest0-21swapper/010:45:170
2271599192,2cyclictest3170-21cat10:20:212
2271599190,18cyclictest3991-21H222:10:212
2271599190,18cyclictest0-21swapper/209:06:522
2271599190,18cyclictest0-21swapper/208:53:302
2271599190,16cyclictest3981-21H222:10:212
22714991914,4cyclictest0-21swapper/107:50:011
22714991914,4cyclictest0-21swapper/107:41:111
22714991913,5cyclictest3931-21sed12:15:181
22714991913,5cyclictest3931-21sed12:15:181
22714991913,5cyclictest14928-21fschecks_count09:45:161
22714991912,6cyclictest0-21swapper/110:50:171
22714991911,7cyclictest6519-21df09:30:131
22714991911,7cyclictest25397-21ls11:00:151
2271499190,1cyclictest4025-21changes_open22:10:211
2271499190,1cyclictest0-21swapper/110:18:481
2271499190,18cyclictest0-21swapper/110:49:041
2271499190,18cyclictest0-21swapper/110:39:311
2271499190,18cyclictest0-21swapper/109:37:011
2271499190,18cyclictest0-21swapper/108:05:121
2271499190,18cyclictest0-21swapper/107:10:131
2271499190,18cyclictest0-21swapper/107:10:131
2271499190,14cyclictest0-21swapper/108:25:141
2271399193,15cyclictest4099-21H222:10:210
2271399192,16cyclictest14371-21switchtime10:40:210
22713991916,2cyclictest3989-21H222:10:210
2271399190,16cyclictest3981-21H222:10:210
2271399190,16cyclictest3979-21H222:10:210
2271399190,16cyclictest3979-21H222:10:210
2271399190,16cyclictest3979-21H222:10:210
2271399190,16cyclictest3976-21H222:10:210
2271599182,15cyclictest10996-21nfsd410:35:182
22715991816,1cyclictest28-21ksoftirqd/212:08:172
22715991816,1cyclictest28-21ksoftirqd/208:19:022
22715991816,1cyclictest0-21swapper/208:12:262
22715991816,1cyclictest0-21swapper/207:55:182
22715991815,2cyclictest13411-21which10:40:152
22715991815,2cyclictest0-21swapper/209:29:422
22715991814,3cyclictest4035-21H222:10:212
22715991814,2cyclictest4099-21H222:10:212
2271599181,16cyclictest193742sleep211:46:022
2271599181,16cyclictest15112-21chrt07:51:352
2271599181,16cyclictest0-21swapper/211:00:132
2271599180,3cyclictest846-21trivial-rewrite07:26:192
2271599180,3cyclictest3991-21H222:10:212
2271599180,2cyclictest3989-21H222:10:212
2271599180,17cyclictest3989-21H222:10:212
2271599180,17cyclictest3983-21H222:10:212
2271599180,17cyclictest16042-21ntpq11:40:182
2271599180,16cyclictest4099-21H222:10:212
2271599180,16cyclictest4035-21H222:10:212
22714991812,5cyclictest5247-21/usr/sbin/munin08:30:161
22714991812,5cyclictest0-21swapper/111:30:031
22714991812,5cyclictest0-21swapper/108:20:141
2271499180,17cyclictest0-21swapper/111:45:121
2271399182,1cyclictest20772-21latency09:55:180
2271399182,15cyclictest0-21swapper/007:44:150
22713991816,1cyclictest9943-21latency11:30:140
22713991815,2cyclictest23867-21taskset10:58:180
22713991814,3cyclictest3991-21H222:10:210
22713991814,3cyclictest3979-21H222:10:210
22713991814,3cyclictest15945-21lxd09:12:410
22713991813,2cyclictest3983-21H222:10:210
22713991813,2cyclictest3983-21H222:10:210
2271399181,2cyclictest23203-21expr09:00:230
2271399180,3cyclictest3981-21H222:10:210
2271399180,1cyclictest4099-21H222:10:210
2271399180,1cyclictest0-21swapper/010:31:390
2271399180,17cyclictest3989-21H222:10:210
2271399180,17cyclictest3983-21H222:10:210
2271399180,17cyclictest3976-21H222:10:210
2271399180,17cyclictest0-21swapper/010:35:180
2271399180,15cyclictest3981-21H222:10:210
22715991715,1cyclictest24303-21grep07:10:182
22715991715,1cyclictest24303-21grep07:10:172
22715991715,1cyclictest0-21swapper/211:50:212
22715991715,1cyclictest0-21swapper/211:10:162
22715991715,1cyclictest0-21swapper/210:07:012
22715991715,1cyclictest0-21swapper/207:42:212
22715991714,2cyclictest3985-21H222:10:212
22715991714,2cyclictest3979-21H222:10:212
22715991714,2cyclictest31464-21fschecks_count10:15:142
22715991714,2cyclictest22768-21expr10:00:122
22715991714,2cyclictest15684-21cut08:50:012
22715991714,2cyclictest12289-21http_loadtime09:40:162
22715991714,2cyclictest11824-21awk12:30:162
22715991713,3cyclictest3983-21H222:10:212
2271599171,15cyclictest0-21swapper/209:55:212
2271599171,15cyclictest0-21swapper/208:35:192
2271599170,2cyclictest4035-21H222:10:212
2271599170,2cyclictest3991-21H222:10:212
2271599170,2cyclictest3983-21H222:10:212
2271599170,2cyclictest3981-21H222:10:212
2271599170,2cyclictest19303-21grep08:55:152
2271599170,1cyclictest0-21swapper/210:25:132
2271599170,16cyclictest6969-21fschecks_time11:25:132
2271599170,16cyclictest5102-21expr07:35:132
2271599170,16cyclictest4536-21sed11:20:162
2271599170,16cyclictest3983-21H222:10:212
2271599170,16cyclictest3979-21H222:10:212
2271599170,16cyclictest32227-21fschecks_count12:10:142
2271599170,16cyclictest29700-21apache_accesses09:15:102
2271599170,16cyclictest21442-21apt-key10:55:012
2271599170,16cyclictest19726-21grep08:00:182
2271599170,16cyclictest19726-21grep08:00:172
2271599170,16cyclictest1829-21systemd-journal07:17:012
2271599170,15cyclictest3979-21H222:10:212
22713991715,1cyclictest9-21ksoftirqd/011:21:070
22713991714,2cyclictest6872-21df_inode11:25:130
22713991714,2cyclictest3991-21H222:10:210
22713991714,2cyclictest3983-21H222:10:210
22713991714,2cyclictest3979-21H222:10:210
22713991714,2cyclictest3976-21H222:10:210
22713991714,2cyclictest31723-21cpuspeed_turbos12:10:120
22713991714,2cyclictest31322-21sort08:20:160
22713991714,2cyclictest29179-21cat10:10:160
22713991714,2cyclictest25415-21cat08:10:130
22713991714,2cyclictest24447-21apache_processe11:00:100
22713991714,2cyclictest22433-21smartctl08:05:140
22713991714,2cyclictest17280-21ls09:50:120
2271399171,2cyclictest3954-21VM22:10:210
2271399170,2cyclictest7887-21grep12:25:120
2271399170,2cyclictest3991-21H222:10:210
2271399170,2cyclictest28481-21/usr/sbin/munin07:20:110
2271399170,2cyclictest27899-21sed11:05:140
2271399170,2cyclictest2711-21ntp_states10:20:180
2271399170,2cyclictest2518-21sort09:25:010
2271399170,2cyclictest13819-21ls12:35:140
2271399170,1cyclictest3985-21H222:10:210
2271399170,16cyclictest8515-21expr08:35:210
2271399170,16cyclictest6028-21cpuspeed_turbos09:30:130
2271399170,16cyclictest4913-21tr07:35:130
2271399170,16cyclictest3985-21H222:10:210
2271399170,16cyclictest3979-21H222:10:210
2271399170,16cyclictest335-21apache_volume11:15:100
2271399170,16cyclictest31470-21chrt11:10:190
2271399170,16cyclictest19341-21idleruntime10:50:170
2271399170,16cyclictest18624-21nfsd411:45:180
2271399170,16cyclictest15211-21expr11:40:140
2271399170,16cyclictest11781-21cut09:40:140
2271399170,16cyclictest1035-21thermald07:15:220
2271399170,16cyclictest10050-21ntp_states09:35:190
2271399170,16cyclictest0-21swapper/012:23:130
2271399170,16cyclictest0-21swapper/010:25:070
2271399170,16cyclictest0-21swapper/008:48:550
2271399170,15cyclictest0-21swapper/012:30:170
22715991614,1cyclictest1584-21open_files09:20:182
2271599160,15cyclictest28481-21/usr/sbin/munin07:20:112
2271599160,15cyclictest0-21swapper/210:45:022
22713991614,1cyclictest0-21swapper/008:30:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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