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2026-09-14 - 17:37
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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 Mon Sep 14, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
52790222530,2sleep30-21swapper/309:40:013
74328821110,1sleep00-21swapper/011:44:130
76281221090,1sleep20-21swapper/211:54:292
53212821000,2sleep20-21swapper/209:44:282
8335352900,1sleep1833539-21kthreadcore12:34:291
8260622300,2sleep20-21swapper/212:29:292
30660699242,14cyclictest0-21swapper/207:59:082
306604992414,6cyclictest713973-21unixbench_multi11:24:360
30660499232,10cyclictest663203-21ssh10:59:080
306604992212,6cyclictest558215-21kthreadcore09:59:280
306604992112,3cyclictest647379-21kthreadcore10:49:270
306605992010,6cyclictest607764-21idleruntime-cro10:25:011
30660499200,8cyclictest779257-21expr12:04:230
7313652190,2sleep10-21swapper/111:34:361
306606991914,2cyclictest0-21swapper/211:33:092
30660499199,6cyclictest0-21swapper/012:35:010
30660499198,6cyclictest0-21swapper/011:54:240
30660499197,7cyclictest0-21swapper/009:44:060
30660499194,3cyclictest565682-21taskset10:04:080
30660499194,3cyclictest191rcu_preempt07:29:060
30660499192,2cyclictest491rcuog/212:39:290
306604991914,4cyclictest24615-21JS14:54:060
306604991913,2cyclictest191rcu_preempt11:35:010
306604991910,5cyclictest737837-21kthreadcore11:39:310
2447398190,3rtkit-daemon61901-21gmain11:59:221
2213291190,2phc2sys0-21swapper/311:23:493
2213291190,2phc2sys0-21swapper/310:32:023
30660699187,5cyclictest0-21swapper/209:29:072
306605991814,3cyclictest513836-21grep09:34:291
306605991814,3cyclictest464432-21kthreadcore09:04:301
30660499189,8cyclictest513911-21kthreadcore09:34:290
30660499189,5cyclictest0-21swapper/010:34:360
30660499186,7cyclictest0-21swapper/009:14:060
306604991815,2cyclictest687792-21systemd-run11:10:020
306604991814,3cyclictest326036-21kthreadcore07:24:300
306604991811,1cyclictest501rcuop/211:25:510
306604991811,1cyclictest501rcuop/211:25:510
306604991811,1cyclictest501rcuop/210:14:030
306604991811,1cyclictest501rcuop/209:25:520
2213291181,2phc2sys0-21swapper/311:06:323
2213291180,2phc2sys0-21swapper/312:24:553
30660699176,3cyclictest0-21swapper/208:25:092
30660599178,4cyclictest0-21swapper/111:47:091
30660599178,4cyclictest0-21swapper/111:47:091
30660599177,4cyclictest0-21swapper/110:49:061
306605991714,2cyclictest24472-21rtkit-daemon10:36:231
306605991714,2cyclictest24472-21rtkit-daemon09:53:561
306605991713,3cyclictest506691-21kthreadcore09:29:311
30660599171,15cyclictest538979-21apt-get09:49:061
30660499179,6cyclictest501rcuop/212:19:260
30660499179,1cyclictest191rcu_preempt10:27:280
30660499178,5cyclictest674959-21kthreadcore11:04:290
30660499176,5cyclictest0-21swapper/011:13:310
30660499175,4cyclictest16-21ksoftirqd/007:15:030
30660499175,2cyclictest191rcu_preempt09:54:280
306604991714,2cyclictest932-1atopacctd09:10:030
306604991713,3cyclictest793595-21mailstats12:09:320
306604991711,5cyclictest306602-21cyclictest12:14:260
306604991711,1cyclictest501rcuop/210:38:400
306604991711,1cyclictest501rcuop/210:07:300
306604991711,1cyclictest501rcuop/209:20:390
30660499171,11cyclictest0-21swapper/011:19:240
306604991710,2cyclictest589977-21kworker/u16:3+xprtiod11:55:180
306604991710,1cyclictest501rcuop/209:18:310
30660499170,7cyclictest543834-21kthreadcore09:49:300
30660499170,6cyclictest593367-21sed10:19:270
30660499170,6cyclictest1-21systemd12:30:010
30660499170,3cyclictest379102-21cstates08:04:250
2213291171,4phc2sys0-21swapper/307:09:073
2213291170,2phc2sys0-21swapper/312:07:303
306606991613,1cyclictest0-21swapper/209:39:302
306606991611,2cyclictest0-21swapper/210:02:092
306606991610,2cyclictest0-21swapper/209:09:072
306605991615,1cyclictest0-21swapper/112:24:071
30660599161,3cyclictest460893-21awk09:00:011
306605991613,2cyclictest812219-21systemd-run12:20:021
306605991613,2cyclictest778-21dbus-daemon12:40:021
306605991613,2cyclictest709091-21tr11:24:281
306605991613,2cyclictest687553-21latency_hist11:10:011
306605991613,2cyclictest440304-21systemd-run08:45:011
306605991613,2cyclictest386925-21kthreadcore08:09:291
306605991612,3cyclictest589977-21kworker/u16:3+nfsiod11:44:571
306605991612,3cyclictest447824-21aten_repower_en08:54:091
306605991612,3cyclictest428381-21kthreadcore08:39:281
30660499169,3cyclictest474669-21diskmemload09:35:210
30660499165,7cyclictest0-21swapper/008:57:230
306604991613,2cyclictest447391-21systemd08:50:030
306604991612,3cyclictest641579-21kthreadcore10:44:300
306604991612,3cyclictest419533-21latency_hist08:30:010
306604991612,3cyclictest394299-21kthreadcore08:14:300
306604991612,3cyclictest343027-21ptp4l07:34:350
306604991611,3cyclictest440210-21cat08:45:010
30660499161,13cyclictest364877-21/usr/sbin/munin07:54:140
306604991611,1cyclictest501rcuop/211:45:590
306604991611,1cyclictest501rcuop/211:45:590
306604991610,1cyclictest501rcuop/212:22:110
2213291161,6phc2sys0-21swapper/308:49:063
2213291160,5phc2sys0-21swapper/310:53:553
2213291160,2phc2sys0-21swapper/309:56:163
2213291160,2phc2sys0-21swapper/309:46:153
2213291160,2phc2sys0-21swapper/309:31:123
2213291160,2phc2sys0-21swapper/307:18:093
30660699159,4cyclictest8427642chrt12:39:272
306606991511,2cyclictest0-21swapper/210:09:062
30660699150,8cyclictest0-21swapper/211:26:022
30660699150,8cyclictest0-21swapper/211:26:022
306605991512,2cyclictest486904-21irqcore09:19:291
306605991512,2cyclictest469170-21gltestperf09:09:261
306605991512,2cyclictest407840-21kthreadcore08:24:291
306605991512,2cyclictest24617-21JS14:54:061
306605991512,2cyclictest0-21swapper/111:55:021
306605991511,3cyclictest975-21in:imuxsock07:43:551
306605991511,3cyclictest657603-21kthreadcore10:54:291
306605991511,3cyclictest625738-21munin-plugin-st10:35:031
306605991511,3cyclictest614273-21kthreadcore10:29:291
306605991511,3cyclictest566474-21head10:04:271
306605991511,3cyclictest421815-21kthreadcore08:34:301
306605991511,3cyclictest24619-21llvmpipe-110:12:591
306605991511,3cyclictest117567-21kworker/u16:2+nfsiod09:56:271
30660499154,6cyclictest537267-21kworker/u16:1+xprtiod10:54:000
30660499151,7cyclictest399437-21apt-get08:19:070
306604991512,2cyclictest345116-21grep07:39:280
306604991512,2cyclictest316051-21latency07:15:040
306604991511,3cyclictest462885-21kernelversion09:04:290
306604991511,3cyclictest430739-21kthreadcore08:39:290
306604991511,3cyclictest424259-21kthreadcore08:34:310
306604991511,3cyclictest406956-21fschecks_count08:24:260
306604991511,3cyclictest391574-21timerwakeupswit08:09:350
306604991511,3cyclictest374994-21kthreadcore07:59:300
306604991511,3cyclictest355618-21kthreadcore07:44:300
306604991511,3cyclictest24617-21JS14:54:060
30660499150,6cyclictest447779-21apt-get08:54:050
2213291150,5phc2sys0-21swapper/312:31:043
2213291150,5phc2sys0-21swapper/309:16:323
2213291150,4phc2sys0-21swapper/310:14:373
2213291150,3phc2sys0-21swapper/310:59:083
2213291150,3phc2sys0-21swapper/307:44:073
2213291150,2phc2sys0-21swapper/311:55:453
2213291150,2phc2sys0-21swapper/311:54:063
2213291150,2phc2sys0-21swapper/311:30:033
2213291150,2phc2sys0-21swapper/311:30:033
306606991412,1cyclictest0-21swapper/212:24:292
306606991412,1cyclictest0-21swapper/210:50:032
306606991411,1cyclictest0-21swapper/212:14:302
306606991411,1cyclictest0-21swapper/211:39:292
306606991411,1cyclictest0-21swapper/211:24:302
306606991411,1cyclictest0-21swapper/211:02:082
306606991411,1cyclictest0-21swapper/210:44:302
306606991411,1cyclictest0-21swapper/210:34:332
306606991411,1cyclictest0-21swapper/208:54:282
306606991411,1cyclictest0-21swapper/207:54:292
30660599148,5cyclictest670029-21kworker/u16:0-nfsiod12:14:171
30660599148,2cyclictest82050irq/121-eno110:06:471
306605991411,2cyclictest823048-21acpi12:29:051
306605991411,2cyclictest788502-21idleruntime12:09:251
306605991411,2cyclictest692708-21kthreadcore11:14:311
306605991411,2cyclictest524380-21kthreadcore09:39:291
306605991411,2cyclictest414009-21gltestperf08:29:261
306605991411,2cyclictest366229-21kthreadcore07:54:291
306605991411,2cyclictest364282-21systemd-run07:50:011
306605991411,2cyclictest1227-21sshd11:02:251
306605991410,3cyclictest722594-21mailstats11:29:341
306605991410,3cyclictest722594-21mailstats11:29:341
306605991410,3cyclictest533404-21kthreadcore09:44:291
306605991410,3cyclictest400638-21irqrtprio08:19:281
306605991410,3cyclictest399111-21kworker/u16:3+nfsiod09:23:521
306605991410,3cyclictest395002-21kthreadcore08:14:301
306605991410,3cyclictest381731-21kthreadcore08:04:311
306605991410,3cyclictest331517-21irqrtprio07:29:271
306605991410,3cyclictest310200-21kthreadcore07:14:311
30660599140,6cyclictest341340-21tr07:34:321
30660499141,8cyclictest306799-21munin-run07:10:030
2213291141,4phc2sys0-21swapper/307:34:083
2213291140,3phc2sys0-21swapper/311:39:083
2213291140,2phc2sys0-21swapper/310:19:063
2213291140,2phc2sys0-21swapper/309:24:063
2213291140,2phc2sys0-21swapper/308:59:563
30660699131,2cyclictest0-21swapper/211:40:392
30660699131,2cyclictest0-21swapper/209:12:022
30660699131,2cyclictest0-21swapper/207:31:462
30660699131,2cyclictest0-21swapper/207:22:252
306606991311,1cyclictest0-21swapper/209:24:072
306606991310,1cyclictest0-21swapper/211:59:302
306606991310,1cyclictest0-21swapper/211:14:362
306606991310,1cyclictest0-21swapper/210:56:122
306606991310,1cyclictest0-21swapper/210:21:152
306606991310,1cyclictest0-21swapper/209:59:062
306606991310,1cyclictest0-21swapper/209:04:362
306606991310,1cyclictest0-21swapper/208:59:312
30660699130,7cyclictest0-21swapper/210:17:132
30660699130,7cyclictest0-21swapper/208:15:102
30660699130,2cyclictest7534882sleep211:49:292
30660699130,2cyclictest7534882sleep211:49:292
30660599139,3cyclictest477566-21sh09:14:241
30660599139,3cyclictest373041-21irqrtprio07:59:281
30660599139,3cyclictest317803-21irqrtprio07:19:281
30660599138,4cyclictest306602-21cyclictest10:18:441
30660599137,4cyclictest779380-21sshd-session12:04:241
30660599133,6cyclictest932-1atopacctd11:37:041
30660599132,3cyclictest0-21swapper/110:44:061
306605991310,2cyclictest446559-21proc_pri08:49:321
306605991310,2cyclictest344865-21fschecks_time07:39:261
306605991310,2cyclictest323787-21cpuspeed_turbos07:24:251
2213291131,5phc2sys0-21swapper/312:39:043
2213291131,4phc2sys0-21swapper/312:14:073
2213291131,4phc2sys0-21swapper/311:49:063
2213291131,4phc2sys0-21swapper/311:49:063
2213291130,3phc2sys0-21swapper/311:01:443
2213291130,2phc2sys0-21swapper/312:18:453
2213291130,2phc2sys0-21swapper/311:10:423
2213291130,2phc2sys0-21swapper/309:42:143
2213291130,2phc2sys0-21swapper/309:09:073
2213291130,1phc2sys0-21swapper/308:44:183
2213291130,1phc2sys0-21swapper/307:14:563
30660699129,1cyclictest0-21swapper/208:44:292
30660699129,1cyclictest0-21swapper/208:09:302
30660699129,1cyclictest0-21swapper/207:49:302
30660699127,2cyclictest776950-21chrt12:00:182
30660699121,8cyclictest546105-21chrt09:50:222
30660699121,8cyclictest492667-21taskset09:20:032
30660699121,2cyclictest0-21swapper/211:05:112
30660699121,2cyclictest0-21swapper/208:39:082
306606991210,1cyclictest0-21swapper/208:34:292
306606991210,1cyclictest0-21swapper/208:04:322
30660699120,7cyclictest0-21swapper/209:31:362
30660699120,10cyclictest0-21swapper/207:39:082
30660599128,3cyclictest82050irq/121-eno110:56:431
2213291123,2phc2sys0-21swapper/309:50:043
2213291121,5phc2sys0-21swapper/308:09:073
2213291120,4phc2sys0-21swapper/307:29:063
2213291120,3phc2sys0-21swapper/310:49:063
2213291120,2phc2sys0-21swapper/309:01:423
2213291120,1phc2sys0-21swapper/310:24:113
30660699119,1cyclictest0-21swapper/209:45:082
30660699119,1cyclictest0-21swapper/208:14:322
30660699118,1cyclictest0-21swapper/212:09:292
30660699118,1cyclictest0-21swapper/210:39:282
30660699118,1cyclictest0-21swapper/210:26:232
30660699118,1cyclictest0-21swapper/210:14:332
30660699118,1cyclictest0-21swapper/208:24:302
30660699118,1cyclictest0-21swapper/207:19:292
30660699118,1cyclictest0-21swapper/207:14:312
30660699111,7cyclictest831219-21chrt12:32:452
30660699111,4cyclictest6609092sleep210:55:012
30660699111,1cyclictest0-21swapper/207:41:082
30660699110,2cyclictest0-21swapper/208:49:262
2213291111,2phc2sys0-21swapper/310:39:073
2213291111,2phc2sys0-21swapper/310:25:563
2213291111,2phc2sys0-21swapper/310:06:163
2213291111,2phc2sys0-21swapper/309:11:363
2213291110,1phc2sys0-21swapper/308:33:083
2213291110,1phc2sys0-21swapper/308:25:113
2213291110,1phc2sys0-21swapper/307:55:093
30660699107,1cyclictest0-21swapper/212:19:302
30660699105,3cyclictest6975602chrt11:16:412
30660699101,6cyclictest330043-21chrt07:25:162
2213291102,2phc2sys0-21swapper/311:34:313
2213291102,2phc2sys0-21swapper/307:24:263
2213291101,4phc2sys0-21swapper/308:54:063
2213291101,2phc2sys0-21swapper/310:03:033
2213291100,2phc2sys0-21swapper/312:25:583
2213291100,2phc2sys0-21swapper/312:00:293
2213291100,2phc2sys0-21swapper/309:27:593
2213291100,1phc2sys0-21swapper/308:20:183
2213291100,1phc2sys0-21swapper/308:00:143
2213291100,1phc2sys0-21swapper/307:35:473
392459291,5sleep30-21swapper/308:14:083
305773291,6sleep1305917-21tail07:09:331
221329190,2phc2sys0-21swapper/311:40:203
221329190,2phc2sys0-21swapper/311:15:313
221329190,2phc2sys0-21swapper/310:40:163
221329190,2phc2sys0-21swapper/308:35:053
221329190,2phc2sys0-21swapper/308:15:053
221329190,2phc2sys0-21swapper/307:54:573
221329190,2phc2sys0-21swapper/307:49:083
3066069981,4cyclictest3065112sleep207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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