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2026-07-14 - 14:16
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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 rackeslot2.osadl.org (updated Tue Jul 14, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
105995721020,1sleep00-21swapper/000:23:280
98280921010,2sleep0982810-21cut23:31:260
7649192990,1sleep10-21swapper/121:06:181
10610022920,1sleep20-21swapper/200:25:342
621561992314,5cyclictest1040539-21kthreadcore00:11:250
621561992310,7cyclictest0-21swapper/019:51:200
621563992219,1cyclictest0-21swapper/223:20:012
621562992219,2cyclictest1053039-21sh00:20:011
621561992219,2cyclictest826486-21kthreadcore21:46:260
621561992214,7cyclictest0-21swapper/019:40:010
621561992213,5cyclictest1000124-21sshd23:42:200
621563992118,1cyclictest0-21swapper/219:25:012
621561992118,2cyclictest785368-21idleruntime-cro21:20:010
621561992118,2cyclictest1023369-21grep00:00:010
621561992110,6cyclictest0-21swapper/022:00:020
621563992018,1cyclictest0-21swapper/222:40:022
621563992017,1cyclictest0-21swapper/221:20:012
621561992018,1cyclictest837450-21ssh21:55:000
621563991917,1cyclictest0-21swapper/222:30:032
621563991917,1cyclictest0-21swapper/220:16:342
621562991916,2cyclictest941806-21grep23:05:021
621562991916,2cyclictest911727-21dump-pmu-power22:45:011
621562991911,3cyclictest0-21swapper/121:16:281
621562991911,3cyclictest0-21swapper/121:15:011
621562991911,3cyclictest0-21swapper/100:00:021
621561991916,2cyclictest666546-21munin-run19:45:010
621561991916,2cyclictest621559-21cyclictest23:20:020
621561991911,7cyclictest795895-21kthreadcore21:26:270
621561991911,4cyclictest0-21swapper/000:10:010
621561991910,5cyclictest1013753-21kthreadcore23:51:270
621563991816,1cyclictest0-21swapper/221:00:022
621562991815,2cyclictest980157-21cut23:31:211
621562991815,2cyclictest1008794-21systemd-run23:50:021
621562991815,2cyclictest0-21swapper/100:40:021
62156299181,1cyclictest69250irq/121-eno121:21:201
621562991810,3cyclictest0-21swapper/122:46:171
62156199189,5cyclictest820500-21kthreadcore21:41:270
62156199189,2cyclictest0-21swapper/023:26:230
62156199187,6cyclictest0-21swapper/022:06:220
62156199187,6cyclictest0-21swapper/000:16:180
621561991815,2cyclictest759-1atopacctd21:31:210
621561991815,2cyclictest759-1atopacctd21:31:210
621561991815,2cyclictest1-21systemd19:15:030
621561991815,2cyclictest1008732-21/usr/sbin/munin23:50:020
621561991814,2cyclictest0-21swapper/000:30:020
621561991812,5cyclictest899430-21kthreadcore22:36:250
7727672170,2sleep20-21swapper/221:11:242
621563991715,1cyclictest0-21swapper/222:41:262
621563991715,1cyclictest0-21swapper/222:35:012
621563991714,1cyclictest0-21swapper/223:34:452
621563991714,1cyclictest0-21swapper/223:06:212
621563991714,1cyclictest0-21swapper/221:35:012
621563991714,1cyclictest0-21swapper/221:35:012
62156299179,4cyclictest924993-21grep22:51:291
62156299179,3cyclictest0-21swapper/120:56:201
621562991714,2cyclictest999451-21sendmail_mailst23:41:301
621562991714,2cyclictest857881-21grep22:06:281
621562991714,2cyclictest666783-21apt-key19:45:011
621562991714,2cyclictest627654-21cpuspeed19:15:011
621562991714,2cyclictest621559-21cyclictest23:26:281
62156199173,8cyclictest630202-21cat19:16:180
621561991715,1cyclictest889361-21idleruntime-cro22:30:010
621561991714,2cyclictest950525-21grep23:11:220
621561991714,2cyclictest945239-21kthreadcore23:06:260
621561991714,2cyclictest874539-21systemctl22:20:010
621561991714,2cyclictest808368-21aten2.4-expect21:36:190
621561991714,2cyclictest672-21polkitd00:40:030
621561991714,2cyclictest1031097-21systemd-run00:05:020
62156199171,10cyclictest664-21dbus-daemon20:00:020
3240591170,2phc2sys0-21swapper/322:31:253
3240591170,2phc2sys0-21swapper/321:12:013
3240591170,1phc2sys0-21swapper/323:45:053
1157598170,3rtkit-daemon789431-21grep21:21:280
621563991615,0cyclictest0-21swapper/223:15:032
621563991614,1cyclictest0-21swapper/223:56:272
621563991614,1cyclictest0-21swapper/223:05:022
621563991614,1cyclictest0-21swapper/222:16:202
621563991614,1cyclictest0-21swapper/221:45:032
621563991614,1cyclictest0-21swapper/221:20:222
621563991614,1cyclictest0-21swapper/220:15:032
621563991613,1cyclictest0-21swapper/223:21:222
621563991613,1cyclictest0-21swapper/221:51:252
62156299167,3cyclictest501rcuop/222:13:491
62156299167,2cyclictest715488-21kworker/u16:1-rpciod21:57:341
62156299166,4cyclictest501rcuop/222:25:441
621562991614,1cyclictest956598-21cut23:15:021
621562991613,2cyclictest642210-21sh19:25:011
621562991613,2cyclictest1307-21mta-sts-daemon20:51:251
621562991613,2cyclictest1300-21mta-sts-daemon19:55:021
621562991613,2cyclictest11574-21rtkit-daemon21:31:361
621562991613,2cyclictest11574-21rtkit-daemon21:31:361
621562991611,4cyclictest759-1atopacctd20:11:191
621562991611,1cyclictest69250irq/121-eno121:41:191
62156299161,10cyclictest664-21dbus-daemon19:40:021
62156199169,2cyclictest0-21swapper/023:35:030
62156199162,9cyclictest732161-21cut20:36:260
62156199161,3cyclictest760898-21cut21:01:260
621561991613,2cyclictest881928-21cron22:25:000
621561991613,2cyclictest867341-21systemd-run22:15:020
621561991613,2cyclictest672818-21idleruntime-cro19:50:010
621561991613,2cyclictest648682-21/usr/sbin/munin19:31:200
621561991613,2cyclictest0-21swapper/021:00:010
621561991611,4cyclictest697072-21cron20:10:010
3240591163,1phc2sys0-21swapper/323:11:263
3240591160,1phc2sys0-21swapper/320:56:273
62156399158,4cyclictest919859-21chrt22:50:322
621563991513,1cyclictest0-21swapper/223:51:042
621563991513,1cyclictest0-21swapper/223:26:262
621563991513,1cyclictest0-21swapper/222:21:252
621563991513,1cyclictest0-21swapper/221:10:022
621563991513,1cyclictest0-21swapper/220:30:002
621563991513,1cyclictest0-21swapper/220:25:022
621563991513,1cyclictest0-21swapper/219:46:232
621563991513,1cyclictest0-21swapper/219:35:022
621563991513,1cyclictest0-21swapper/200:38:242
621563991513,1cyclictest0-21swapper/200:13:372
621563991512,1cyclictest0-21swapper/223:41:262
621563991512,1cyclictest0-21swapper/220:05:012
621563991512,1cyclictest0-21swapper/220:05:012
621563991512,1cyclictest0-21swapper/219:41:212
621563991512,1cyclictest0-21swapper/200:21:292
621563991512,1cyclictest0-21swapper/200:18:082
621563991512,1cyclictest0-21swapper/200:01:282
62156299159,2cyclictest0-21swapper/123:40:011
62156299158,2cyclictest1060602-21systemd-run00:25:011
62156299156,3cyclictest501rcuop/221:47:561
621562991512,2cyclictest929414-21kthreadcore22:56:261
621562991512,2cyclictest929414-21kthreadcore22:56:261
621562991512,2cyclictest892962-21kthreadcore22:31:261
621562991512,2cyclictest809307-21irqcore21:36:251
621562991512,2cyclictest763828-21mailstats21:01:311
621562991512,2cyclictest745979-21sh20:50:011
621562991512,2cyclictest672071-21processes19:46:301
621562991512,2cyclictest635896-21dump-pmu-power19:20:011
621562991512,2cyclictest621559-21cyclictest00:11:201
621562991512,2cyclictest1307-21mta-sts-daemon00:27:461
621562991512,2cyclictest0-21swapper/122:36:301
621562991512,2cyclictest0-21swapper/100:05:011
621562991511,3cyclictest715488-21kworker/u16:1+nfsiod22:20:561
621562991511,3cyclictest651476-21kthreadcore19:31:271
621562991510,2cyclictest1300-21mta-sts-daemon22:03:181
62156199159,5cyclictest1300-21mta-sts-daemon00:31:170
62156199159,4cyclictest664-21dbus-daemon20:20:020
62156199158,6cyclictest938068-21kthreadcore23:01:260
62156199157,4cyclictest0-21swapper/022:01:180
621561991512,2cyclictest924984-21needreboot22:51:280
621561991512,2cyclictest909791-21latency22:41:270
621561991512,2cyclictest776122-21head21:11:270
621561991512,2cyclictest745928-21latency_hist20:50:010
621561991512,2cyclictest723110-21kthreadcore20:31:270
621561991512,2cyclictest715488-21kworker/u16:1-nfsiod22:46:250
621561991512,2cyclictest636587-21cpuspeed_turbos19:21:210
621561991512,2cyclictest1-21systemd21:10:020
621561991511,1cyclictest1309-21mta-sts-daemon19:26:210
62156199150,0cyclictest930385-21ssh22:56:270
62156199150,0cyclictest930385-21ssh22:56:270
3240591150,1phc2sys0-21swapper/322:43:573
3240591150,1phc2sys0-21swapper/300:37:393
62156399149,3cyclictest0-21swapper/220:06:312
621563991412,1cyclictest0-21swapper/222:50:012
621563991412,1cyclictest0-21swapper/222:06:322
621563991412,1cyclictest0-21swapper/222:00:302
621563991412,1cyclictest0-21swapper/221:05:012
621563991412,1cyclictest0-21swapper/220:50:022
621563991412,1cyclictest0-21swapper/220:31:272
621563991412,1cyclictest0-21swapper/219:53:362
621563991412,1cyclictest0-21swapper/219:16:272
621563991412,1cyclictest0-21swapper/219:15:032
621563991411,1cyclictest0-21swapper/223:46:192
621563991411,1cyclictest0-21swapper/221:29:212
621563991411,1cyclictest0-21swapper/219:56:222
621563991411,1cyclictest0-21swapper/219:28:132
621563991411,1cyclictest0-21swapper/200:31:312
621563991411,1cyclictest0-21swapper/200:07:502
62156399140,10cyclictest8378342sleep221:55:142
62156299148,2cyclictest191rcu_preempt00:31:171
62156299147,3cyclictest1307-21mta-sts-daemon23:17:011
621562991411,2cyclictest831078-21cpuspeed21:51:201
621562991411,2cyclictest759-1atopacctd20:01:271
621562991411,2cyclictest759-1atopacctd20:01:271
621562991411,2cyclictest710450-21idleruntime20:21:231
621562991411,2cyclictest11574-21rtkit-daemon23:21:461
621562991411,2cyclictest1009592-21cpuspeed_turbos23:51:201
621562991411,2cyclictest0-21swapper/119:10:011
621562991411,2cyclictest0-21swapper/100:10:011
621562991410,3cyclictest942684-21cpuspeed_turbos23:06:201
621562991410,3cyclictest871300-21kthreadcore22:16:271
621562991410,3cyclictest621559-21cyclictest20:16:271
62156199143,6cyclictest965975-21grep23:21:250
621561991412,1cyclictest1034-21runrttasks22:31:100
621561991411,2cyclictest688828-21kthreadcore20:01:270
621561991411,2cyclictest688828-21kthreadcore20:01:270
621561991410,3cyclictest712215-21kthreadcore20:21:260
3240591140,4phc2sys0-21swapper/323:44:403
3240591140,3phc2sys0-21swapper/321:53:103
3240591140,2phc2sys0-21swapper/323:19:563
3240591140,1phc2sys0-21swapper/323:31:443
3240591140,1phc2sys0-21swapper/322:36:403
3240591140,1phc2sys0-21swapper/321:35:503
621563991312,0cyclictest0-21swapper/219:10:012
621563991311,1cyclictest0-21swapper/222:55:212
621563991311,1cyclictest0-21swapper/222:55:212
621563991311,1cyclictest0-21swapper/222:10:292
621563991311,1cyclictest0-21swapper/219:35:342
621563991310,1cyclictest0-21swapper/221:35:272
62156299139,3cyclictest684946-21latency_hist20:00:011
621562991310,2cyclictest723849-21kthreadcore20:31:271
621562991310,2cyclictest715775-21aten_repower_cu20:26:191
621562991310,2cyclictest692005-21sh20:06:231
621562991310,2cyclictest621559-21cyclictest20:36:191
621562991310,2cyclictest1307-21mta-sts-daemon21:29:431
62156199138,4cyclictest750846-21tr20:51:280
62156199135,4cyclictest733932-21/usr/sbin/munin20:41:330
621561991310,2cyclictest719404-21kthreadcore20:26:270
621561991310,2cyclictest698533-21irqcore20:11:230
3240591130,1phc2sys0-21swapper/321:46:463
3240591130,1phc2sys0-21swapper/321:28:133
62156399129,1cyclictest0-21swapper/220:40:102
621563991210,1cyclictest0-21swapper/223:36:192
621563991210,1cyclictest0-21swapper/221:46:022
621563991210,1cyclictest0-21swapper/220:51:262
621563991210,1cyclictest0-21swapper/220:40:022
62156299129,2cyclictest734087-21aten_repower_po20:41:201
62156299129,2cyclictest643868-21irqrtprio19:26:251
62156199129,2cyclictest268-21systemd-journal19:10:020
3240591120,1phc2sys0-21swapper/323:03:173
3240591120,1phc2sys0-21swapper/319:56:413
3240591120,1phc2sys0-21swapper/300:20:213
3240591111,2phc2sys0-21swapper/300:11:183
3240591110,3phc2sys0-21swapper/319:06:203
3240591110,2phc2sys0-21swapper/321:03:563
3240591110,2phc2sys0-21swapper/319:46:193
3240591110,1phc2sys0-21swapper/323:07:573
3240591110,1phc2sys0-21swapper/322:53:113
3240591110,1phc2sys0-21swapper/322:46:253
3240591110,1phc2sys0-21swapper/322:24:053
3240591110,1phc2sys0-21swapper/300:08:213
3240591102,2phc2sys0-21swapper/323:25:333
3240591101,2phc2sys0-21swapper/319:51:323
3240591100,2phc2sys0-21swapper/323:57:073
3240591100,2phc2sys0-21swapper/322:59:563
3240591100,2phc2sys0-21swapper/322:59:563
3240591100,2phc2sys0-21swapper/321:56:203
3240591100,2phc2sys0-21swapper/320:31:193
3240591100,2phc2sys0-21swapper/320:26:263
3240591100,2phc2sys0-21swapper/319:31:483
3240591100,2phc2sys0-21swapper/319:26:283
3240591100,1phc2sys0-21swapper/322:13:513
3240591100,1phc2sys0-21swapper/320:44:493
3240591100,1phc2sys0-21swapper/300:02:563
324059193,2phc2sys0-21swapper/321:41:323
324059191,2phc2sys0-21swapper/323:38:353
324059191,2phc2sys0-21swapper/323:21:323
324059191,2phc2sys0-21swapper/322:25:493
324059191,2phc2sys0-21swapper/321:15:193
324059191,2phc2sys0-21swapper/320:01:263
324059191,2phc2sys0-21swapper/320:01:263
324059191,1phc2sys0-21swapper/319:45:033
324059190,2phc2sys0-21swapper/322:18:003
324059190,1phc2sys0-21swapper/323:51:523
324059190,1phc2sys0-21swapper/322:05:253
324059190,1phc2sys0-21swapper/322:04:213
324059190,1phc2sys0-21swapper/320:48:423
324059190,1phc2sys0-21swapper/320:18:453
324059190,1phc2sys0-21swapper/319:36:213
324059190,1phc2sys0-21swapper/319:16:263
324059190,1phc2sys0-21swapper/300:32:353
324059190,1phc2sys0-21swapper/300:26:353
324059181,3phc2sys0-21swapper/321:20:193
324059181,2phc2sys0-21swapper/321:05:413
324059181,2phc2sys0-21swapper/300:15:063
324059180,2phc2sys0-21swapper/321:30:173
324059180,2phc2sys0-21swapper/321:30:173
324059180,2phc2sys0-21swapper/320:51:203
324059180,2phc2sys0-21swapper/320:36:283
324059180,1phc2sys0-21swapper/320:21:213
324059180,1phc2sys0-21swapper/320:06:473
324059180,1phc2sys0-21swapper/319:20:153
324059180,1phc2sys0-21swapper/319:10:373
324059170,2phc2sys0-21swapper/320:11:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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