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2026-03-19 - 07:36
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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 rackeslot2.osadl.org (updated Thu Mar 19, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
152797521190,2sleep30-21swapper/323:21:333
155409221180,1sleep10-21swapper/123:36:341
153931621120,1sleep00-21swapper/023:26:350
11554042990,1sleep20-21swapper/219:15:012
16201582510,2sleep30-21swapper/300:11:393
15514772330,2sleep30-21swapper/323:34:443
1148334992410,4cyclictest0-21swapper/121:40:001
1148334992312,3cyclictest1527256-21fschecks_time23:21:311
1148334992311,7cyclictest1614655-21/usr/sbin/munin00:11:321
1148332992316,2cyclictest2902298rtkit-daemon20:41:320
1148332992310,6cyclictest0-21swapper/021:26:270
1148338992219,1cyclictest0-21swapper/200:35:022
114833499229,4cyclictest0-21swapper/122:11:341
1148334992219,2cyclictest1283755-21cron21:00:001
1148332992216,2cyclictest134050irq/121-eno121:56:340
1148332992211,2cyclictest1578500-21/usr/sbin/munin23:50:020
2649091211,10phc2sys0-21swapper/321:40:013
1148334992110,2cyclictest134050irq/121-eno100:01:361
114833299214,5cyclictest1200454-21sed19:51:330
1148332992115,2cyclictest191rcu_preempt00:35:020
2902298200,3rtkit-daemon29026-21sendmail-mta21:52:481
1148338992018,1cyclictest0-21swapper/200:40:012
1148338992017,2cyclictest0-21swapper/222:40:012
1148338992017,1cyclictest0-21swapper/200:25:012
1148334992017,2cyclictest1322515-21cron21:25:001
1148334992012,1cyclictest134050irq/121-eno121:16:361
1148332992012,4cyclictest1589596-21kthreadcore23:56:340
1148332992012,1cyclictest1153447-21grub-editenv19:11:340
1148332992011,5cyclictest1641486-21ssh00:26:270
1148332992011,5cyclictest0-21swapper/022:06:320
1148332992010,3cyclictest1288-1atopacctd22:01:480
1148332992010,2cyclictest16-21ksoftirqd/000:14:180
1148338991917,1cyclictest0-21swapper/222:50:012
1148338991916,1cyclictest0-21swapper/222:20:022
1148338991916,1cyclictest0-21swapper/200:00:022
1148334991916,2cyclictest1385982-21fschecks_time22:01:301
1148334991916,2cyclictest1290-21dbus-daemon22:45:011
1148334991916,2cyclictest0-21swapper/120:35:011
1148334991914,3cyclictest1579408-21acpi23:51:251
1148334991912,1cyclictest191rcu_preempt22:57:471
114833299199,6cyclictest1360098-21irqcore21:46:330
114833299198,7cyclictest1372638-21cut21:51:360
114833299194,4cyclictest1658898-21aten2.4-expect00:36:290
114833299194,4cyclictest1421730-21tr22:21:320
114833299194,4cyclictest1223565-21aten2.4-expect20:11:280
1148332991916,2cyclictest1326-21systemd-logind22:45:000
1148332991916,2cyclictest1259580-21latency_hist20:40:020
1148332991914,1cyclictest191rcu_preempt22:16:310
1148332991913,5cyclictest1623518-21tail00:16:270
1148332991913,5cyclictest1408165-21head22:11:370
1148332991913,2cyclictest191rcu_preempt22:26:410
1148332991913,2cyclictest191rcu_preempt20:16:340
1148332991912,1cyclictest2902298rtkit-daemon21:35:030
1148332991912,1cyclictest1331606-21kworker/u16:0+xprtiod22:57:130
1148332991911,1cyclictest1305365-21ssh21:15:130
1148332991910,5cyclictest1555317-21cut23:36:360
1148338991815,1cyclictest0-21swapper/222:26:342
1148338991815,1cyclictest0-21swapper/220:25:012
1148338991814,2cyclictest0-21swapper/223:12:562
114833499189,5cyclictest1560498-21kworker/1:2+events_freezable00:09:221
114833499181,8cyclictest1630978-21cron00:20:001
1148334991815,2cyclictest1666584-21gpgconf00:40:011
1148334991815,2cyclictest0-21swapper/122:20:001
1148334991814,3cyclictest1379238-21kthreadcore21:56:341
1148334991814,3cyclictest1157837-21if_enp1s019:16:321
1148334991813,3cyclictest1421432-21cstates22:21:301
1148334991810,1cyclictest134050irq/121-eno123:16:041
114833299189,5cyclictest1351272-21irqcore21:41:330
114833299189,5cyclictest1315124-21cpuspeed21:21:290
114833299189,5cyclictest1192861-21cron19:45:000
114833299189,5cyclictest1192861-21cron19:45:000
114833299189,5cyclictest0-21swapper/022:46:350
114833299188,6cyclictest1517816-21apt-get23:16:260
114833299188,6cyclictest1500839-21fschecks_count23:06:310
114833299188,6cyclictest1455132-21munin-run22:40:000
114833299188,6cyclictest1193945-21cut19:46:320
114833299188,1cyclictest501rcuop/222:50:260
114833299187,7cyclictest1580673-21ssh23:51:320
114833299187,7cyclictest1565053-21kthreadcore23:41:350
114833299187,7cyclictest1267279-21cut20:46:330
114833299186,8cyclictest1241390-21kworker/u16:0+xprtiod21:11:150
114833299184,2cyclictest191rcu_preempt23:21:340
114833299183,4cyclictest1638821-21ssh00:23:240
114833299183,3cyclictest1547089-21cut23:31:350
114833299182,3cyclictest1169873-21gltestperf19:26:310
1148332991815,2cyclictest1288-1atopacctd21:31:510
1148332991814,3cyclictest1211037-21cut20:00:000
1148332991813,1cyclictest191rcu_preempt22:30:530
1148332991813,1cyclictest191rcu_preempt19:16:340
1148332991812,3cyclictest0-21swapper/020:35:020
1148332991811,6cyclictest1509639-21fschecks_count23:11:300
1148332991810,4cyclictest0-21swapper/023:01:300
2649091170,2phc2sys0-21swapper/322:50:453
2649091170,2phc2sys0-21swapper/300:39:563
2649091170,1phc2sys0-21swapper/322:08:573
1148338991715,1cyclictest0-21swapper/222:10:012
1148338991714,2cyclictest0-21swapper/220:16:312
1148338991714,1cyclictest0-21swapper/223:45:012
1148338991714,1cyclictest0-21swapper/222:00:002
1148338991714,1cyclictest0-21swapper/221:10:012
1148338991714,1cyclictest0-21swapper/220:30:002
1148338991712,3cyclictest1198900-21chrt19:50:002
114833499179,1cyclictest501rcuop/223:47:131
114833499179,1cyclictest1534185-21kworker/1:2+events_freezable23:28:581
114833499179,1cyclictest1168993-21kworker/1:0+events_freezable19:56:331
114833499178,2cyclictest134050irq/121-eno100:30:021
114833499178,2cyclictest1112324-21kworker/1:1+events_freezable19:11:311
114833499178,1cyclictest501rcuop/223:43:131
114833499176,3cyclictest0-21swapper/123:31:401
1148334991714,2cyclictest1455086-21cron22:40:001
1148334991714,2cyclictest0-21swapper/100:25:011
1148334991713,3cyclictest1241880-21cpuspeed_turbos20:26:291
1148334991713,3cyclictest1164414-21kthreadcore19:21:351
1148334991712,3cyclictest1337505-21missed_timers21:31:361
1148334991710,5cyclictest134050irq/121-eno122:31:521
1148334991710,4cyclictest1304971-21kworker/1:0+events_freezable22:07:551
114833299179,4cyclictest0-21swapper/021:01:260
114833299178,5cyclictest1241170-21cron20:25:010
114833299178,5cyclictest1215181-21cut20:01:360
114833299178,2cyclictest1167724-21latency19:21:360
114833299176,5cyclictest0-21swapper/000:06:330
1148332991714,2cyclictest1290410-21tail21:06:290
1148332991714,2cyclictest1280912-21kthreadcore20:56:360
1148332991714,2cyclictest1242916-21kthreadcore20:26:340
1148332991713,3cyclictest1274315-21kthreadcore20:51:350
1148332991713,1cyclictest1181200-21/usr/sbin/munin19:36:390
1148332991710,1cyclictest191rcu_preempt20:06:340
2649091161,2phc2sys0-21swapper/323:42:033
2649091161,2phc2sys0-21swapper/300:18:383
2649091160,2phc2sys0-21swapper/323:56:573
2649091160,2phc2sys0-21swapper/322:48:313
2649091160,2phc2sys0-21swapper/300:26:323
1148338991614,1cyclictest0-21swapper/223:36:322
1148338991614,1cyclictest0-21swapper/200:16:342
1148338991613,1cyclictest0-21swapper/223:19:462
1148338991613,1cyclictest0-21swapper/222:35:012
1148338991613,1cyclictest0-21swapper/222:05:002
1148338991613,1cyclictest0-21swapper/221:41:342
1148338991613,1cyclictest0-21swapper/220:11:382
1148338991613,1cyclictest0-21swapper/219:40:002
114833499168,2cyclictest134050irq/121-eno121:45:311
114833499167,2cyclictest36-21ksoftirqd/100:34:401
114833499167,2cyclictest134050irq/121-eno122:52:331
114833499167,2cyclictest134050irq/121-eno121:40:421
114833499165,3cyclictest36-21ksoftirqd/120:40:001
1148334991613,2cyclictest1514275-21timedrift23:11:401
1148332991613,2cyclictest1598933-21kthreadcore00:01:350
1148332991613,2cyclictest1177950-21kthreadcore19:31:350
2649091150,3phc2sys0-21swapper/321:18:303
2649091150,2phc2sys0-21swapper/321:56:553
2649091150,2phc2sys0-21swapper/300:01:533
114833899153,2cyclictest0-21swapper/220:37:382
1148338991513,1cyclictest0-21swapper/223:30:092
1148338991513,1cyclictest0-21swapper/222:56:352
1148338991512,1cyclictest0-21swapper/223:51:382
1148338991512,1cyclictest0-21swapper/221:50:372
1148338991512,1cyclictest0-21swapper/221:26:382
1148338991512,1cyclictest0-21swapper/221:25:002
1148338991512,1cyclictest0-21swapper/220:45:012
1148338991512,1cyclictest0-21swapper/219:56:382
1148338991512,1cyclictest0-21swapper/200:26:372
1148338991512,1cyclictest0-21swapper/200:10:002
114833899150,1cyclictest0-21swapper/200:02:372
114833499157,2cyclictest134050irq/121-eno123:06:021
114833499157,2cyclictest134050irq/121-eno123:04:231
114833499157,2cyclictest134050irq/121-eno122:45:391
114833499157,2cyclictest134050irq/121-eno121:13:551
114833499157,1cyclictest1277756-21kworker/1:1+events_freezable21:06:351
114833499155,2cyclictest134050irq/121-eno122:26:351
1148334991513,1cyclictest0-21swapper/100:00:011
1148334991512,2cyclictest1-21systemd19:38:521
1148334991512,2cyclictest1194042-21gltestperf19:46:331
1148334991511,3cyclictest1288-1atopacctd21:26:331
2649091140,3phc2sys0-21swapper/323:03:503
2649091140,2phc2sys0-21swapper/321:11:213
2649091140,1phc2sys0-21swapper/322:39:263
13327762140,3sleep30-21swapper/321:31:283
114833899149,3cyclictest0-21swapper/219:21:262
114833899143,2cyclictest0-21swapper/222:11:562
114833899141,7cyclictest0-21swapper/221:39:192
1148338991412,1cyclictest0-21swapper/223:06:352
1148338991412,1cyclictest0-21swapper/222:45:012
1148338991412,1cyclictest0-21swapper/221:11:342
1148338991412,1cyclictest0-21swapper/221:01:312
1148338991412,1cyclictest0-21swapper/220:56:322
1148338991412,1cyclictest0-21swapper/220:50:022
1148338991412,1cyclictest0-21swapper/219:16:332
1148338991411,1cyclictest0-21swapper/222:23:512
1148338991411,1cyclictest0-21swapper/221:20:002
1148338991411,1cyclictest0-21swapper/219:41:352
1148338991411,1cyclictest0-21swapper/219:41:352
1148338991411,1cyclictest0-21swapper/219:31:382
1148338991410,2cyclictest0-21swapper/221:46:352
1148338991410,2cyclictest0-21swapper/200:10:142
114833499147,1cyclictest501rcuop/220:15:371
114833499145,2cyclictest134050irq/121-eno120:11:311
114833499143,3cyclictest1235677-21aten2.4-expect20:21:281
1148334991412,1cyclictest1288-1atopacctd20:41:311
1148334991412,1cyclictest1223059-21idleruntime-cro20:10:001
1148334991412,1cyclictest1174114-21mailstats19:26:391
1148334991411,2cyclictest1272229-21aten_repower_vo20:51:281
1148334991411,2cyclictest1202283-21kthreadcore19:51:351
1148334991411,2cyclictest1148323-21cyclictest19:41:341
1148334991411,2cyclictest1148323-21cyclictest19:41:341
1148334991410,3cyclictest1212691-21irqrtprio20:01:351
1148332991411,2cyclictest1290-21dbus-daemon19:10:020
2649091131,4phc2sys0-21swapper/319:41:273
2649091131,4phc2sys0-21swapper/319:41:273
2649091130,2phc2sys0-21swapper/323:09:463
2649091130,2phc2sys0-21swapper/322:31:463
2649091130,2phc2sys0-21swapper/320:25:053
114833899139,2cyclictest0-21swapper/220:06:352
114833899139,2cyclictest0-21swapper/219:51:342
1148338991311,1cyclictest0-21swapper/223:21:382
1148338991311,1cyclictest0-21swapper/222:54:022
1148338991311,1cyclictest0-21swapper/221:31:402
1148338991310,1cyclictest0-21swapper/223:46:332
1148338991310,1cyclictest0-21swapper/223:25:292
1148338991310,1cyclictest0-21swapper/223:01:342
1148338991310,1cyclictest0-21swapper/220:46:272
1148338991310,1cyclictest0-21swapper/220:31:252
1148338991310,1cyclictest0-21swapper/219:26:312
114833499131,6cyclictest501rcuop/220:45:341
1148334991310,2cyclictest1286100-21kthreadcore21:01:341
1148334991310,2cyclictest1175364-21cpu19:31:281
2649091124,2phc2sys0-21swapper/320:24:533
2649091123,2phc2sys0-21swapper/323:18:433
2649091120,2phc2sys0-21swapper/321:51:593
2649091120,1phc2sys0-21swapper/322:15:283
2649091120,1phc2sys0-21swapper/322:13:413
1148338991210,1cyclictest0-21swapper/220:01:362
2649091110,5phc2sys0-21swapper/321:27:203
2649091110,3phc2sys0-21swapper/321:46:283
2649091110,3phc2sys0-21swapper/321:21:283
2649091110,2phc2sys0-21swapper/323:55:023
2649091110,2phc2sys0-21swapper/323:38:393
2649091110,2phc2sys0-21swapper/323:26:283
2649091110,2phc2sys0-21swapper/320:06:333
2649091110,2phc2sys0-21swapper/300:06:203
2649091110,1phc2sys0-21swapper/320:56:193
2649091110,1phc2sys0-21swapper/320:42:363
16314842110,4sleep30-21swapper/300:20:183
114833499118,2cyclictest935598-21kworker/u16:3-events_power_efficient19:10:011
2649091106,1phc2sys0-21swapper/320:53:543
2649091101,3phc2sys0-21swapper/319:25:013
2649091101,2phc2sys0-21swapper/322:41:393
2649091101,2phc2sys0-21swapper/320:31:383
2649091101,2phc2sys0-21swapper/319:26:303
2649091100,4phc2sys0-21swapper/321:06:283
2649091100,2phc2sys0-21swapper/323:47:523
2649091100,2phc2sys0-21swapper/322:26:283
2649091100,2phc2sys0-21swapper/322:20:153
2649091100,2phc2sys0-21swapper/321:40:073
2649091100,2phc2sys0-21swapper/320:11:383
2649091100,2phc2sys0-21swapper/320:01:283
2649091100,2phc2sys0-21swapper/319:40:003
2649091100,2phc2sys0-21swapper/300:31:293
2649091100,1phc2sys0-21swapper/319:47:383
114833899107,1cyclictest0-21swapper/219:10:002
264909191,3phc2sys0-21swapper/319:35:013
264909191,2phc2sys0-21swapper/321:01:363
264909190,4phc2sys0-21swapper/319:16:273
264909190,2phc2sys0-21swapper/323:10:293
264909190,2phc2sys0-21swapper/322:57:103
264909190,2phc2sys0-21swapper/322:00:313
264909190,2phc2sys0-21swapper/320:46:333
264909190,2phc2sys0-21swapper/320:36:393
264909190,2phc2sys0-21swapper/320:16:273
264909190,2phc2sys0-21swapper/319:59:553
264909190,2phc2sys0-21swapper/319:51:343
264909190,2phc2sys0-21swapper/319:10:433
264909190,2phc2sys0-21swapper/319:06:303
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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