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2026-06-19 - 23:42
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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 792 highest latencies:
System rackeslot2.osadl.org (updated Fri Jun 19, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
332519822260,2sleep30-21swapper/309:50:113
317076921070,2sleep30-21swapper/307:50:173
31232792470,2sleep30-21swapper/307:15:023
34571042400,3sleep30-21swapper/311:19:133
3116405992521,3cyclictest3501669-21grep11:50:011
3116405992417,2cyclictest191rcu_preempt09:50:021
3116405992417,2cyclictest191rcu_preempt07:45:011
311640599231,19cyclictest3368692-21/usr/sbin/munin10:20:011
311640599229,7cyclictest36-21ksoftirqd/112:10:001
311640599222,10cyclictest36-21ksoftirqd/107:20:011
3116405992214,1cyclictest191rcu_preempt09:25:141
3116405992213,3cyclictest36-21ksoftirqd/107:15:021
3116405992211,2cyclictest0-21swapper/109:55:081
311640499222,11cyclictest660-21dbus-daemon08:05:020
3116404992212,6cyclictest3527735-21kthreadcore12:05:190
3116404992210,7cyclictest0-21swapper/009:20:100
311640599219,4cyclictest1050-21snmpd12:35:211
311640599211,14cyclictest3546139-21apt-get12:20:091
3116405992111,4cyclictest3184503-21tr08:00:171
3116405992110,5cyclictest3349400-21cut10:05:161
3116405992110,4cyclictest3201855-21tr08:15:161
3116405992110,4cyclictest3201855-21tr08:15:161
3116404992118,2cyclictest0-21swapper/012:30:010
3116404992117,2cyclictest0-21swapper/007:15:020
3116404992114,6cyclictest3513796-21cut11:55:180
3116404992111,6cyclictest3324699-21systemd-run09:50:020
311640599209,4cyclictest3276672-21cut09:15:181
3116405992015,1cyclictest191rcu_preempt12:30:021
3116405992015,1cyclictest191rcu_preempt09:12:301
3116405992013,2cyclictest191rcu_preempt10:20:231
3116405992012,3cyclictest36-21ksoftirqd/112:15:021
3116405992010,4cyclictest3222866-21cut08:35:101
3116405992010,4cyclictest3140645-21tr07:25:141
3116404992017,2cyclictest3420432-21/usr/sbin/munin10:55:010
3116404992017,2cyclictest3376336-21sh10:25:010
3116404992017,2cyclictest3161473-21/usr/sbin/munin07:45:010
3116404992012,7cyclictest0-21swapper/007:40:010
3116404992011,5cyclictest3383973-21acpi10:30:080
3116404992010,5cyclictest1237-21mta-sts-daemon11:11:520
492398190,4rtkit-daemon3411494-21users10:45:221
3153791191,5phc2sys0-21swapper/311:50:093
311640599199,5cyclictest3398762-21aten_repower_cu10:40:091
311640599198,4cyclictest3222144-21vmstat08:30:271
311640599192,11cyclictest3437088-21kthreadcore11:05:151
3116405991916,2cyclictest3216629-21sh08:30:011
3116405991916,2cyclictest0-21swapper/109:35:031
3116405991913,1cyclictest191rcu_preempt09:25:011
3116405991912,2cyclictest191rcu_preempt07:20:231
3116405991911,1cyclictest191rcu_preempt10:50:081
3116405991910,4cyclictest3482571-21cat11:35:151
3116405991910,4cyclictest3254405-21sed09:00:171
3116405991910,4cyclictest3242162-21irqrtprio08:50:151
3116405991910,4cyclictest191rcu_preempt07:35:011
3116405991910,3cyclictest3260613-21kthreadcore09:05:171
3116405991910,1cyclictest191rcu_preempt12:00:481
311640499199,6cyclictest0-21swapper/009:50:190
311640499199,5cyclictest3450770-21cstates11:15:110
311640499198,6cyclictest0-21swapper/011:35:010
311640499198,4cyclictest1242-21mta-sts-daemon10:40:040
3116404991916,2cyclictest274-21systemd-journal11:45:010
3116404991916,2cyclictest274-21systemd-journal08:45:010
3116404991916,2cyclictest0-21swapper/009:15:020
3116404991911,6cyclictest671-21polkitd11:25:030
3153791180,2phc2sys0-21swapper/309:23:203
311640599188,3cyclictest36-21ksoftirqd/109:40:171
311640599187,6cyclictest36-21ksoftirqd/112:20:011
311640599187,6cyclictest36-21ksoftirqd/110:35:131
311640599184,9cyclictest3326761-21kthreadcore09:50:171
311640599182,7cyclictest36-21ksoftirqd/110:35:001
311640599181,6cyclictest3359712-21vmstat10:10:241
3116405991815,2cyclictest3381713-21mailstats10:25:211
3116405991813,1cyclictest191rcu_preempt08:15:021
3116405991811,1cyclictest191rcu_preempt11:31:211
3116405991810,3cyclictest36-21ksoftirqd/111:55:021
3116405991810,3cyclictest36-21ksoftirqd/108:50:011
3116405991810,1cyclictest191rcu_preempt08:05:461
311640599180,7cyclictest3167900-21apt-get07:50:091
311640599180,3cyclictest3472161-21ssh11:30:011
311640599180,3cyclictest3472161-21ssh11:30:011
311640599180,3cyclictest0-21swapper/111:15:091
311640599180,12cyclictest3252413-21unixbench_multi08:55:231
311640499187,5cyclictest0-21swapper/010:30:020
311640499183,6cyclictest0-21swapper/012:35:170
3116404991815,2cyclictest765-1atopacctd11:40:010
3116404991815,2cyclictest3421449-21tr10:55:130
3116404991815,2cyclictest3317282-21cut09:45:020
3116404991815,2cyclictest3295742-21tr09:30:100
3116404991815,2cyclictest274-21systemd-journal07:25:010
3116404991815,2cyclictest1-21systemd11:50:020
3116404991810,4cyclictest3391322-21/usr/sbin/munin10:35:150
3153791170,2phc2sys0-21swapper/311:49:163
3153791170,2phc2sys0-21swapper/309:40:513
3153791170,2phc2sys0-21swapper/309:14:263
3153791170,2phc2sys0-21swapper/307:15:033
3153791170,1phc2sys0-21swapper/311:21:243
3116406991714,1cyclictest0-21swapper/211:15:032
3116406991714,1cyclictest0-21swapper/210:00:002
3116406991714,1cyclictest0-21swapper/209:10:022
311640699171,10cyclictest0-21swapper/211:50:012
311640599179,3cyclictest36-21ksoftirqd/112:30:081
311640599179,3cyclictest36-21ksoftirqd/111:55:111
311640599179,3cyclictest36-21ksoftirqd/111:40:151
311640599179,3cyclictest36-21ksoftirqd/110:55:091
311640599179,3cyclictest36-21ksoftirqd/110:05:011
311640599179,3cyclictest36-21ksoftirqd/107:40:011
311640599178,5cyclictest36-21ksoftirqd/108:20:141
311640599175,6cyclictest3230010-21cut08:40:151
3116405991714,2cyclictest3433335-21head11:00:191
3116405991711,1cyclictest191rcu_preempt07:55:161
311640599170,11cyclictest3162879-21irqrtprio07:45:161
311640499179,7cyclictest0-21swapper/010:05:010
311640499179,2cyclictest0-21swapper/010:17:450
311640499178,4cyclictest3436665-21ps11:05:130
311640499174,7cyclictest3143396-21aten2.4-expect07:30:100
311640499171,5cyclictest491rcuog/211:52:490
3116404991714,2cyclictest698-21in:imuxsock07:48:280
3116404991714,2cyclictest660-21dbus-daemon09:55:200
3116404991714,2cyclictest3517647-21interrupts12:00:150
3116404991714,2cyclictest3353965-21/usr/sbin/munin10:10:000
3116404991713,3cyclictest3466972-21kthreadcore11:25:140
3116404991713,3cyclictest3466972-21kthreadcore11:25:140
3116404991713,2cyclictest658-21avahi-daemon10:50:020
311640499170,2cyclictest3198538-21/usr/sbin/munin08:15:140
311640499170,2cyclictest3198538-21/usr/sbin/munin08:15:140
3153791161,3phc2sys0-21swapper/310:25:083
3153791160,5phc2sys0-21swapper/309:30:093
3153791160,2phc2sys0-21swapper/312:24:513
3153791160,2phc2sys0-21swapper/311:11:163
3153791160,2phc2sys0-21swapper/307:25:143
3153791160,1phc2sys0-21swapper/311:28:453
3153791160,1phc2sys0-21swapper/311:28:453
3116406991614,1cyclictest0-21swapper/212:20:022
3116406991614,1cyclictest0-21swapper/212:15:022
3116406991614,1cyclictest0-21swapper/210:20:162
3116406991614,1cyclictest0-21swapper/210:15:112
3116406991614,1cyclictest0-21swapper/208:00:032
3116406991613,1cyclictest0-21swapper/211:35:012
3116406991613,1cyclictest0-21swapper/209:50:132
3116406991613,1cyclictest0-21swapper/209:45:012
3116406991613,1cyclictest0-21swapper/209:25:102
3116406991613,1cyclictest0-21swapper/208:15:022
3116406991612,2cyclictest0-21swapper/212:00:152
3116406991612,2cyclictest0-21swapper/210:48:072
3116406991612,2cyclictest0-21swapper/209:40:012
3116406991612,2cyclictest0-21swapper/209:40:012
3116406991612,1cyclictest0-21swapper/209:20:092
311640599168,3cyclictest36-21ksoftirqd/111:20:101
311640599168,3cyclictest36-21ksoftirqd/111:10:111
311640599168,3cyclictest36-21ksoftirqd/109:35:161
311640599168,3cyclictest36-21ksoftirqd/109:35:161
3116405991611,1cyclictest191rcu_preempt07:10:011
311640499168,7cyclictest3124613-21tr07:15:030
311640499167,4cyclictest3354622-21expr10:10:110
311640499166,5cyclictest17750irq/132-ahci[0000:00:17.0]07:55:010
3116404991614,1cyclictest3567180-21sh12:32:150
3116404991614,1cyclictest3213134-21kthreadcore08:25:160
3116404991613,2cyclictest658-21avahi-daemon09:40:020
3116404991613,2cyclictest658-21avahi-daemon09:40:020
3116404991613,2cyclictest3538843-21aten2.4-expect12:15:090
3116404991613,2cyclictest3280114-21ls09:20:010
3116404991613,2cyclictest3262668-21kthreadcore09:05:180
3116404991613,2cyclictest0-21swapper/008:50:000
311640499161,14cyclictest3222392-21sshd08:33:370
34834402150,2sleep20-21swapper/211:35:152
3153791150,4phc2sys0-21swapper/310:45:123
3153791150,4phc2sys0-21swapper/307:20:093
3153791150,2phc2sys0-21swapper/312:01:313
3153791150,2phc2sys0-21swapper/310:53:573
3153791150,2phc2sys0-21swapper/310:08:193
3153791150,1phc2sys0-21swapper/308:07:013
3116406991513,1cyclictest0-21swapper/212:25:152
3116406991513,1cyclictest0-21swapper/207:55:162
3116406991512,1cyclictest0-21swapper/211:40:592
3116406991512,1cyclictest0-21swapper/211:27:262
3116406991512,1cyclictest0-21swapper/211:27:262
3116406991512,1cyclictest0-21swapper/211:02:172
3116406991512,1cyclictest0-21swapper/210:51:302
3116406991512,1cyclictest0-21swapper/207:45:182
3116406991512,1cyclictest0-21swapper/207:45:012
3116406991511,2cyclictest0-21swapper/212:22:412
3116406991511,2cyclictest0-21swapper/212:07:562
3116406991511,2cyclictest0-21swapper/210:55:592
3116406991511,2cyclictest0-21swapper/210:27:082
3116406991511,2cyclictest0-21swapper/208:53:382
311640499159,5cyclictest3553458-21sh12:25:010
311640499154,6cyclictest0-21swapper/007:26:110
311640499151,4cyclictest491rcuog/212:10:560
3116404991512,2cyclictest3428440-21aten_repower_en11:00:090
3116404991512,2cyclictest3243855-21kthreadcore08:50:170
3116404991512,2cyclictest1237-21mta-sts-daemon09:28:000
3116404991512,2cyclictest0-21swapper/008:40:010
3116404991511,3cyclictest3253251-21aten_repower_cu09:00:110
3153791147,2phc2sys0-21swapper/308:00:163
3153791144,2phc2sys0-21swapper/311:55:503
3153791140,7phc2sys0-21swapper/308:10:093
3153791140,4phc2sys0-21swapper/310:42:063
3153791140,3phc2sys0-21swapper/309:00:113
3153791140,2phc2sys0-21swapper/310:16:113
3153791140,2phc2sys0-21swapper/310:03:003
3153791140,1phc2sys0-21swapper/308:34:183
311640699141,7cyclictest0-21swapper/209:15:092
3116406991412,1cyclictest0-21swapper/210:35:022
3116406991412,1cyclictest0-21swapper/207:30:192
3116406991411,2cyclictest0-21swapper/210:45:012
3116406991411,2cyclictest0-21swapper/210:37:402
3116406991411,1cyclictest0-21swapper/212:35:132
3116406991411,1cyclictest0-21swapper/212:31:282
3116406991411,1cyclictest0-21swapper/211:50:152
3116406991411,1cyclictest0-21swapper/211:20:172
3116406991411,1cyclictest0-21swapper/208:40:092
3116406991411,1cyclictest0-21swapper/207:15:012
3116406991410,2cyclictest0-21swapper/208:55:232
311640499142,2cyclictest67250irq/126-eno108:20:170
311640499141,7cyclictest3116458-21/usr/sbin/munin07:10:010
3116404991411,2cyclictest3251017-21kthreadcore08:55:180
3116404991411,2cyclictest3189969-21kthreadcore08:05:170
3116404991411,2cyclictest3116402-21cyclictest08:10:170
3153791139,1phc2sys0-21swapper/308:40:173
3153791130,3phc2sys0-21swapper/309:37:003
3153791130,3phc2sys0-21swapper/309:37:003
3153791130,2phc2sys0-21swapper/312:34:183
3153791130,2phc2sys0-21swapper/309:45:123
3153791130,2phc2sys0-21swapper/309:25:443
311640699139,2cyclictest0-21swapper/208:20:202
3116406991311,1cyclictest0-21swapper/211:15:162
3116406991311,1cyclictest0-21swapper/210:05:092
3116406991311,1cyclictest0-21swapper/209:45:092
3116406991311,1cyclictest0-21swapper/209:10:182
3116406991311,1cyclictest0-21swapper/208:37:422
3116406991311,1cyclictest0-21swapper/207:18:562
3116406991310,2cyclictest0-21swapper/207:25:102
3116406991310,1cyclictest0-21swapper/211:08:442
3116406991310,1cyclictest0-21swapper/210:10:492
3116406991310,1cyclictest0-21swapper/210:00:232
3116406991310,1cyclictest0-21swapper/208:25:132
3116406991310,1cyclictest0-21swapper/208:05:172
3116406991310,1cyclictest0-21swapper/207:50:152
311640699130,7cyclictest0-21swapper/207:20:092
3116404991310,2cyclictest3176154-21kthreadcore07:55:160
34421692121,3sleep30-21swapper/311:08:203
3153791122,2phc2sys0-21swapper/311:35:143
3153791121,2phc2sys0-21swapper/309:05:163
3153791121,2phc2sys0-21swapper/308:50:183
3153791121,2phc2sys0-21swapper/307:30:113
3153791120,2phc2sys0-21swapper/308:45:093
3153791120,1phc2sys0-21swapper/311:02:163
3153791120,1phc2sys0-21swapper/308:59:433
311640699129,2cyclictest0-21swapper/211:59:212
311640699129,1cyclictest0-21swapper/209:00:152
311640699129,1cyclictest0-21swapper/207:35:142
3116406991210,1cyclictest0-21swapper/209:30:342
3116406991210,1cyclictest0-21swapper/208:45:162
3116406991210,1cyclictest0-21swapper/208:30:182
3116406991210,1cyclictest0-21swapper/208:15:142
3116406991210,1cyclictest0-21swapper/208:15:142
33384022110,4sleep30-21swapper/309:57:303
3153791111,4phc2sys0-21swapper/312:35:093
3153791111,3phc2sys0-21swapper/310:30:093
3153791111,2phc2sys0-21swapper/312:25:163
3153791110,2phc2sys0-21swapper/312:13:063
3153791110,2phc2sys0-21swapper/311:40:153
3153791110,2phc2sys0-21swapper/310:10:093
3153791110,2phc2sys0-21swapper/307:55:193
3153791110,2phc2sys0-21swapper/307:45:093
3153791110,1phc2sys0-21swapper/308:24:083
311640699110,5cyclictest0-21swapper/207:10:012
3153791101,3phc2sys0-21swapper/308:35:093
3153791100,4phc2sys0-21swapper/312:15:093
3153791100,2phc2sys0-21swapper/312:05:203
3153791100,2phc2sys0-21swapper/311:30:213
3153791100,2phc2sys0-21swapper/310:21:433
3153791100,2phc2sys0-21swapper/309:19:073
3153791100,2phc2sys0-21swapper/308:25:083
3153791100,2phc2sys0-21swapper/308:15:193
3153791100,2phc2sys0-21swapper/308:15:193
3153791100,2phc2sys0-21swapper/307:40:083
3153791100,2phc2sys0-21swapper/307:39:323
315379190,3phc2sys0-21swapper/307:10:023
315379190,2phc2sys0-21swapper/310:55:543
315379190,2phc2sys0-21swapper/310:36:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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