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2026-07-29 - 19:16
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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 Wed Jul 29, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
46173021120,1sleep10-21swapper/109:06:031
317764992924,1cyclictest69250irq/121-eno110:16:031
3458402280,1sleep1345844-21cat07:31:011
317763992313,6cyclictest0-21swapper/012:00:020
317764992215,3cyclictest558538-21kthreadcore10:11:031
317765992118,1cyclictest0-21swapper/209:40:002
317763992119,1cyclictest0-21swapper/007:15:020
317763992118,2cyclictest518093-21/usr/sbin/munin09:45:010
317763992113,4cyclictest0-21swapper/010:40:020
317763992110,6cyclictest0-21swapper/010:20:390
317765992012,3cyclictest0-21swapper/211:15:402
317765992010,4cyclictest0-21swapper/209:34:322
317764992017,2cyclictest621867-21grep10:55:011
317764992017,2cyclictest0-21swapper/108:16:011
31776399208,4cyclictest1309-21mta-sts-daemon11:04:380
317763992014,5cyclictest750031-21kthreadcore12:21:020
317763992011,5cyclictest0-21swapper/010:30:010
317763992010,5cyclictest0-21swapper/012:06:350
317763992010,5cyclictest0-21swapper/009:26:020
31776399200,4cyclictest0-21swapper/010:40:390
1157598200,3rtkit-daemon1076-21lldpd10:45:551
317765991917,1cyclictest0-21swapper/210:00:022
317765991916,1cyclictest0-21swapper/212:40:002
317765991916,1cyclictest0-21swapper/209:45:012
31776499199,4cyclictest664-21dbus-daemon10:45:011
31776499197,11cyclictest126654-21kworker/u16:0-rpciod09:42:321
317764991916,2cyclictest709311-21mailstats11:51:071
317764991916,2cyclictest441887-21idleruntime-cro08:50:011
317764991916,2cyclictest317761-21cyclictest10:31:051
317764991916,2cyclictest317761-21cyclictest10:31:051
31776499191,3cyclictest323807-21latency_hist07:15:011
317764991913,5cyclictest417624-21cron08:30:011
317763991917,1cyclictest740558-21/usr/sbin/munin12:15:010
317763991916,2cyclictest762938-21systemd12:30:020
317763991916,2cyclictest703571-21apt-key11:50:020
317763991916,2cyclictest664-21dbus-daemon08:35:010
317763991916,2cyclictest488494-21systemd09:25:010
317763991913,2cyclictest0-21swapper/011:21:040
317763991912,1cyclictest474100-21ssh09:15:380
3240591180,3phc2sys0-21swapper/307:11:093
317765991816,1cyclictest0-21swapper/207:50:022
317765991815,1cyclictest0-21swapper/211:26:102
317765991810,5cyclictest335838-21chrt07:21:042
317764991815,2cyclictest510457-21sendmail09:40:001
317764991815,2cyclictest317761-21cyclictest07:41:001
317764991810,3cyclictest0-21swapper/112:00:021
31776399189,5cyclictest557044-21kthreadcore10:11:020
31776399189,5cyclictest466156-21latency_hist09:10:030
31776399189,4cyclictest0-21swapper/010:35:020
31776399189,4cyclictest0-21swapper/010:35:020
317763991815,2cyclictest684-21systemd-logind11:35:020
317763991815,2cyclictest664-21dbus-daemon11:15:010
317763991815,2cyclictest454021-21idleruntime-cro09:00:010
317763991810,4cyclictest759-1atopacctd09:49:440
3240591170,2phc2sys0-21swapper/311:32:583
3240591170,2phc2sys0-21swapper/310:40:043
3240591170,2phc2sys0-21swapper/308:06:063
31776599171,8cyclictest0-21swapper/208:20:402
31776599171,6cyclictest0-21swapper/212:30:422
317765991715,1cyclictest0-21swapper/207:15:022
317765991714,1cyclictest0-21swapper/210:01:042
317765991714,1cyclictest0-21swapper/207:30:012
317765991713,2cyclictest0-21swapper/211:46:052
317765991713,2cyclictest0-21swapper/208:41:092
317765991711,1cyclictest0-21swapper/209:45:572
317764991714,2cyclictest746574-21grep12:16:101
317764991714,2cyclictest578683-21sed10:25:591
317764991714,2cyclictest540716-21diskmemload10:00:221
317764991714,2cyclictest0-21swapper/110:00:031
317764991714,2cyclictest0-21swapper/109:55:011
317764991713,2cyclictest777878-21systemd12:40:021
31776499171,2cyclictest671713-21ssh11:26:081
317764991712,4cyclictest326217-21if_eno107:15:041
317764991712,2cyclictest1306-21mta-sts-daemon12:29:571
317764991710,3cyclictest429800-21kworker/u16:1-events_power_efficient09:45:441
31776399178,5cyclictest0-21swapper/010:46:010
31776399176,6cyclictest0-21swapper/011:16:040
317763991714,2cyclictest615854-21if_err_enp1s0.810:51:010
317763991714,2cyclictest504468-21sed09:36:010
317763991711,5cyclictest497446-21irqrtprio09:31:020
317763991710,4cyclictest685076-21ssh11:36:040
3240591160,2phc2sys0-21swapper/310:36:513
31776599161,8cyclictest0-21swapper/210:05:412
317765991614,1cyclictest0-21swapper/209:15:032
317765991614,1cyclictest0-21swapper/207:55:022
317765991613,1cyclictest0-21swapper/210:21:072
317765991613,1cyclictest0-21swapper/210:20:022
317765991613,1cyclictest0-21swapper/209:25:002
317765991613,1cyclictest0-21swapper/209:00:012
317765991613,1cyclictest0-21swapper/208:15:532
317765991612,2cyclictest0-21swapper/210:50:592
31776599160,7cyclictest0-21swapper/208:45:402
31776499169,3cyclictest0-21swapper/110:09:091
31776499164,5cyclictest640256-21kthreadcore11:06:031
317764991613,2cyclictest689918-21if_enp1s011:41:001
317764991613,2cyclictest664444-21switchtime11:21:101
317764991613,2cyclictest571675-21irqrtprio10:21:001
317764991613,2cyclictest503257-21cut09:35:021
317764991613,2cyclictest387314-21cron08:05:001
317764991613,2cyclictest351576-21run-parts07:35:581
317764991613,2cyclictest1307-21mta-sts-daemon11:34:301
317764991613,2cyclictest11574-21rtkit-daemon11:02:211
317764991613,2cyclictest0-21swapper/112:05:021
317764991613,2cyclictest0-21swapper/111:20:011
31776399167,7cyclictest385391-21tr08:01:040
31776399167,2cyclictest0-21swapper/009:55:570
31776399161,4cyclictest491rcuog/211:08:050
317763991613,1cyclictest0-21swapper/010:10:030
317763991610,5cyclictest705530-21kthreadcore11:51:020
31776399160,4cyclictest369180-21wc07:50:000
1157598160,2rtkit-daemon1306-21mta-sts-daemon12:35:470
3240591152,2phc2sys0-21swapper/309:46:583
3240591150,3phc2sys0-21swapper/310:24:263
3240591150,2phc2sys0-21swapper/311:37:433
3240591150,2phc2sys0-21swapper/310:46:493
31776599155,4cyclictest0-21swapper/208:10:402
31776599151,6cyclictest0-21swapper/209:30:022
317765991513,1cyclictest0-21swapper/212:11:082
317765991513,1cyclictest0-21swapper/207:20:022
317765991512,1cyclictest0-21swapper/212:26:042
317765991512,1cyclictest0-21swapper/211:56:002
317765991512,1cyclictest0-21swapper/211:41:032
317765991512,1cyclictest0-21swapper/211:36:082
317765991512,1cyclictest0-21swapper/211:25:012
317765991512,1cyclictest0-21swapper/211:11:002
317765991512,1cyclictest0-21swapper/210:32:142
317765991512,1cyclictest0-21swapper/210:32:142
317765991512,1cyclictest0-21swapper/210:11:052
317765991512,1cyclictest0-21swapper/209:51:042
317765991512,1cyclictest0-21swapper/209:01:002
317765991512,1cyclictest0-21swapper/208:35:592
317765991512,1cyclictest0-21swapper/208:31:022
317765991512,1cyclictest0-21swapper/207:35:012
31776499159,5cyclictest602-17auditd08:20:541
31776499159,5cyclictest429964-21systemd-run08:40:021
31776499158,6cyclictest1307-21mta-sts-daemon08:11:051
31776499157,6cyclictest268-21systemd-journal07:55:021
31776499157,3cyclictest0-21swapper/109:30:011
31776499156,4cyclictest0-21swapper/110:55:401
317764991513,2cyclictest351ktimers/108:33:551
317764991512,2cyclictest672-21polkitd07:30:021
317764991512,2cyclictest593267-21fschecks_count10:35:591
317764991512,2cyclictest481283-21rm09:20:041
317764991512,2cyclictest481114-21sh09:20:011
317764991512,2cyclictest393604-21systemd-run08:10:021
317764991512,2cyclictest0-21swapper/108:55:031
317764991512,2cyclictest0-21swapper/107:50:011
317764991511,3cyclictest703341-21kworker/u16:2+nfsiod12:06:011
317764991511,3cyclictest468142-21kernelversion09:11:031
317764991511,3cyclictest449511-21irqrtprio08:56:001
317764991511,3cyclictest317761-21cyclictest11:46:031
31776399156,4cyclictest664-21dbus-daemon07:40:000
31776399154,6cyclictest0-21swapper/011:25:410
317763991512,2cyclictest759-1atopacctd08:44:350
317763991512,2cyclictest562499-21sh10:15:030
317763991512,2cyclictest533118-21latency_hist09:55:020
317763991512,2cyclictest467122-21cut09:10:590
317763991512,2cyclictest460109-21latency_hist09:05:010
317763991512,2cyclictest438630-21kthreadcore08:46:020
317763991512,2cyclictest380691-21threads07:56:090
317763991512,2cyclictest1307-21mta-sts-daemon08:51:010
317763991510,2cyclictest1309-21mta-sts-daemon12:00:300
31776399150,13cyclictest405522-21wc08:20:010
31776399150,11cyclictest769695-21ssh12:34:070
3240591141,4phc2sys0-21swapper/312:20:403
3240591140,4phc2sys0-21swapper/311:11:023
3240591140,2phc2sys0-21swapper/311:53:093
3240591140,2phc2sys0-21swapper/311:26:243
3240591140,2phc2sys0-21swapper/310:17:043
3240591140,1phc2sys0-21swapper/312:08:173
3240591140,1phc2sys0-21swapper/311:18:403
317765991412,1cyclictest0-21swapper/207:41:042
317765991412,1cyclictest0-21swapper/207:10:022
317765991411,1cyclictest0-21swapper/212:21:032
317765991411,1cyclictest0-21swapper/212:16:052
317765991411,1cyclictest0-21swapper/212:06:022
317765991411,1cyclictest0-21swapper/212:00:272
317765991411,1cyclictest0-21swapper/211:01:092
317765991411,1cyclictest0-21swapper/210:41:042
317765991411,1cyclictest0-21swapper/210:35:162
317765991411,1cyclictest0-21swapper/208:51:002
317765991411,1cyclictest0-21swapper/208:26:032
317765991411,1cyclictest0-21swapper/208:05:012
31776499149,4cyclictest1306-21mta-sts-daemon12:20:271
31776499146,3cyclictest0-21swapper/111:35:351
31776499145,8cyclictest455107-21head09:01:001
31776499141,5cyclictest36-21ksoftirqd/111:11:051
317764991411,2cyclictest738933-21switchtime12:11:091
317764991411,2cyclictest432957-21kthreadcore08:41:051
317764991411,2cyclictest334788-21kthreadcore07:21:041
317764991410,3cyclictest695548-21kworker/u16:1+nfsiod12:31:131
31776399148,2cyclictest17750irq/127-ahci[0000:00:17.0]07:16:000
317763991412,1cyclictest345700-21gltestperf07:31:000
317763991412,1cyclictest11574-21rtkit-daemon08:35:380
317763991411,2cyclictest547728-21sh10:05:010
317763991411,2cyclictest396577-21kthreadcore08:11:030
317763991411,2cyclictest1306-21mta-sts-daemon12:16:000
317763991411,2cyclictest1300-21mta-sts-daemon11:40:150
317763991411,2cyclictest1300-21mta-sts-daemon08:06:040
317763991410,3cyclictest540423-21kworker/u16:2+nfsiod10:55:160
3240591133,2phc2sys0-21swapper/309:25:183
3240591131,5phc2sys0-21swapper/310:00:023
3240591130,6phc2sys0-21swapper/310:05:413
3240591130,3phc2sys0-21swapper/312:03:323
3240591130,2phc2sys0-21swapper/311:00:573
3240591130,2phc2sys0-21swapper/309:20:403
3240591130,2phc2sys0-21swapper/309:17:283
3240591130,2phc2sys0-21swapper/307:51:403
31776599131,6cyclictest0-21swapper/211:30:412
31776599131,6cyclictest0-21swapper/207:55:422
317765991311,1cyclictest0-21swapper/211:06:012
317765991310,2cyclictest0-21swapper/208:06:072
317765991310,1cyclictest0-21swapper/211:51:012
317765991310,1cyclictest0-21swapper/210:45:212
317765991310,1cyclictest0-21swapper/209:07:002
317765991310,1cyclictest0-21swapper/207:36:042
31776599130,6cyclictest0-21swapper/210:25:392
317764991310,2cyclictest370997-21kthreadcore07:51:031
31776399134,5cyclictest0-21swapper/007:25:110
317763991310,2cyclictest414580-21kthreadcore08:26:030
317763991310,2cyclictest407598-21kthreadcore08:21:020
317763991310,2cyclictest358501-21irqcore07:41:020
1157598130,3rtkit-daemon1306-21mta-sts-daemon07:50:160
3240591120,2phc2sys0-21swapper/311:24:013
3240591120,2phc2sys0-21swapper/308:46:133
317765991210,1cyclictest0-21swapper/210:56:022
317765991210,1cyclictest0-21swapper/209:16:022
31776499126,4cyclictest317862-21date07:10:021
31776399129,2cyclictest335681-21kthreadcore07:21:040
1157598120,3rtkit-daemon1306-21mta-sts-daemon07:05:240
3240591112,2phc2sys0-21swapper/309:52:403
3240591112,2phc2sys0-21swapper/308:16:053
3240591111,4phc2sys0-21swapper/307:05:413
3240591110,4phc2sys0-21swapper/309:10:413
3240591110,3phc2sys0-21swapper/311:05:343
3240591110,2phc2sys0-21swapper/311:46:183
3240591110,2phc2sys0-21swapper/310:51:433
3240591110,2phc2sys0-21swapper/310:00:413
3240591110,2phc2sys0-21swapper/308:38:213
3240591110,2phc2sys0-21swapper/308:10:403
3240591110,1phc2sys0-21swapper/312:19:573
3240591110,1phc2sys0-21swapper/309:37:253
3240591110,1phc2sys0-21swapper/309:03:213
3240591110,1phc2sys0-21swapper/307:36:383
3240591101,2phc2sys0-21swapper/310:30:593
3240591101,2phc2sys0-21swapper/310:30:593
3240591100,3phc2sys0-21swapper/310:13:043
3240591100,3phc2sys0-21swapper/307:21:033
3240591100,2phc2sys0-21swapper/312:31:563
3240591100,2phc2sys0-21swapper/312:14:403
3240591100,2phc2sys0-21swapper/311:57:443
3240591100,2phc2sys0-21swapper/311:42:493
3240591100,2phc2sys0-21swapper/310:55:083
3240591100,2phc2sys0-21swapper/310:30:033
3240591100,2phc2sys0-21swapper/309:34:523
3240591100,2phc2sys0-21swapper/308:55:563
3240591100,2phc2sys0-21swapper/307:57:463
3240591100,1phc2sys0-21swapper/307:33:333
324059196,1phc2sys0-21swapper/312:36:223
324059191,2phc2sys0-21swapper/307:45:593
324059191,2phc2sys0-21swapper/307:26:003
324059190,4phc2sys0-21swapper/308:20:403
324059190,3phc2sys0-21swapper/308:30:023
324059190,2phc2sys0-21swapper/312:25:223
324059190,2phc2sys0-21swapper/309:40:053
324059190,2phc2sys0-21swapper/308:50:033
324059190,2phc2sys0-21swapper/308:41:013
324059190,2phc2sys0-21swapper/307:40:593
324059190,2phc2sys0-21swapper/307:15:423
324059181,2phc2sys0-21swapper/308:00:303
324059180,2phc2sys0-21swapper/309:05:423
324059180,2phc2sys0-21swapper/308:30:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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