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2026-09-08 - 01:28
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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 Mon Sep 07, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
258135221050,2sleep30-21swapper/311:29:413
23667082850,0sleep02366711-21cut09:29:400
24765792430,2sleep0241rcuc/010:30:010
23894322390,2sleep20-21swapper/209:42:292
26745392340,1sleep02674541-21cat12:24:390
216673899330,23cyclictest2414555-21munin-run09:55:010
2166738992912,12cyclictest2497721-21irqcore10:44:380
25854892270,2sleep20-21swapper/211:34:332
216673899272,14cyclictest0-21swapper/011:29:170
216673899256,2cyclictest0-21swapper/012:34:410
216673899249,5cyclictest2396343-21cut09:44:450
216673899249,14cyclictest2444438-21irqcore10:14:380
216673899246,10cyclictest2334825-21diskmemload09:47:000
216673899241,5cyclictest0-21swapper/012:06:100
2166738992415,8cyclictest2533487-21kthreadcore11:04:400
2166738992414,6cyclictest2568125-21gltestperf11:24:360
216673899235,2cyclictest0-21swapper/012:01:180
216673899235,13cyclictest0-21swapper/010:59:210
216673899231,5cyclictest0-21swapper/010:21:370
2166738992313,9cyclictest2338620-21kthreadcore09:14:380
2166738992313,6cyclictest2657744-21kthreadcore12:14:390
216673899229,8cyclictest0-21swapper/009:39:390
216673899227,14cyclictest2560801-21kthreadcore11:19:380
216673899226,2cyclictest0-21swapper/010:15:500
216673899226,2cyclictest0-21swapper/009:57:220
216673899226,14cyclictest0-21swapper/010:34:350
216673899225,10cyclictest0-21swapper/012:00:030
216673899224,13cyclictest2431989-21unixbench-2d10:04:470
216673899221,6cyclictest778-21dbus-daemon08:15:010
2166738992213,8cyclictest2361570-21systemd-run09:25:010
2166738992213,7cyclictest24617-21JS14:54:060
2166738992212,9cyclictest24616-21JS14:54:060
216673899215,2cyclictest0-21swapper/011:40:450
216673899215,2cyclictest0-21swapper/010:47:230
216673899215,2cyclictest0-21swapper/009:30:070
216673899214,2cyclictest0-21swapper/012:16:150
216673899214,2cyclictest0-21swapper/010:53:070
216673899212,6cyclictest0-21swapper/011:33:090
2166738992117,3cyclictest24614-21JS14:54:060
216673899211,4cyclictest2345942-21rm09:19:150
2166738992112,8cyclictest2290655-21kthreadcore08:39:410
2166738992111,9cyclictest2689165-21latency_hist12:30:030
2166738992111,9cyclictest2326108-21kthreadcore09:04:410
2166738992111,9cyclictest2180455-21kthreadcore07:19:420
2166738992110,10cyclictest2319799-21kthreadcore08:59:410
216673899210,2cyclictest2191337-21/usr/sbin/munin07:29:370
24062402200,1sleep20-21swapper/209:50:352
216673999203,9cyclictest36-21ksoftirqd/111:09:481
2166739992017,2cyclictest24610-21gmain10:17:291
216673899209,10cyclictest2310836-21kthreadcore08:54:390
216673899205,2cyclictest0-21swapper/010:38:530
216673899202,3cyclictest0-21swapper/010:06:330
216673899201,7cyclictest0-21swapper/011:13:420
216673899201,6cyclictest0-21swapper/012:35:190
216673899201,6cyclictest0-21swapper/011:52:040
216673899201,6cyclictest0-21swapper/011:07:070
216673899201,5cyclictest2600571-21rm11:40:010
2166738992012,7cyclictest2263801-21kthreadcore08:19:410
2166738992011,8cyclictest2283392-21kthreadcore08:34:400
2166738992011,7cyclictest2279894-21systemd08:30:030
2166738992010,9cyclictest2574494-21kworker/u16:1+nfsiod11:45:210
2166738992010,9cyclictest2304340-21kthreadcore08:49:420
2166738992010,9cyclictest2242152-21kthreadcore08:04:400
2166738992010,9cyclictest2171962-21kthreadcore07:14:420
2166738992010,9cyclictest2171962-21kthreadcore07:14:420
2166740991916,1cyclictest0-21swapper/208:14:092
216673999198,7cyclictest2396849-21idleruntime-cro09:45:011
2166739991912,3cyclictest191rcu_preempt09:50:591
2166739991911,4cyclictest2364564-21fschecks_time09:29:361
216673899199,9cyclictest2212555-21irqrtprio07:44:380
2166738991910,7cyclictest2218280-21aten_repower_en07:49:220
2213291181,5phc2sys0-21swapper/311:09:193
2213291180,2phc2sys0-21swapper/309:05:023
2166740991814,2cyclictest0-21swapper/211:29:462
2166740991812,2cyclictest0-21swapper/209:59:292
2166739991815,2cyclictest2166736-21cyclictest12:09:431
2166739991813,1cyclictest191rcu_preempt11:47:001
2166739991810,1cyclictest191rcu_preempt10:38:241
216673899189,8cyclictest2271176-21kthreadcore08:24:420
216673899185,8cyclictest2231899-21sshd-session07:58:130
216673899185,6cyclictest24616-21JS14:54:060
216673899185,5cyclictest2205643-21irqrtprio07:39:380
216673899184,5cyclictest2226144-21cut07:54:380
216673899181,6cyclictest2245613-21sshd-auth08:07:130
2213291170,4phc2sys0-21swapper/308:19:183
2213291170,2phc2sys0-21swapper/312:38:093
2213291170,2phc2sys0-21swapper/312:33:523
2213291170,2phc2sys0-21swapper/312:18:133
2213291170,2phc2sys0-21swapper/311:39:363
2213291170,2phc2sys0-21swapper/310:28:443
2213291170,1phc2sys0-21swapper/312:06:513
2166740991714,1cyclictest0-21swapper/211:39:462
2166740991714,1cyclictest0-21swapper/210:54:532
2166740991713,2cyclictest0-21swapper/210:10:032
216673999179,2cyclictest2104544-21kworker/u16:2+events_unbound09:24:411
216673999179,1cyclictest82050irq/121-eno112:34:381
216673999179,1cyclictest491rcuog/212:19:321
216673999179,1cyclictest2582821-21kworker/1:2+events_freezable11:44:421
2166739991714,2cyclictest24648-21gmain10:50:271
2166739991712,1cyclictest82050irq/121-eno112:03:251
2166739991712,1cyclictest191rcu_preempt11:51:101
2166739991712,1cyclictest191rcu_preempt10:57:371
2166739991712,1cyclictest191rcu_preempt10:45:551
2166739991712,1cyclictest191rcu_preempt10:41:341
2166739991712,1cyclictest191rcu_preempt09:58:251
2166739991712,1cyclictest191rcu_preempt09:36:551
2213291160,4phc2sys0-21swapper/312:29:163
2213291160,2phc2sys0-21swapper/310:51:183
2213291160,2phc2sys0-21swapper/310:35:033
2166740991613,1cyclictest0-21swapper/207:15:092
2166740991612,1cyclictest0-21swapper/207:40:012
216673999167,4cyclictest0-21swapper/112:15:031
216673999166,5cyclictest2680602-21kworker/u16:0+rpciod12:38:011
216673999166,4cyclictest2174120-21fschecks_time07:15:021
216673999166,4cyclictest2174120-21fschecks_time07:15:021
216673999163,9cyclictest2244737-21sensors_temp08:04:451
216673999162,7cyclictest2345995-21apt-get09:19:181
216673999161,3cyclictest2629314-21apt-get11:59:171
2166739991612,3cyclictest24615-21JS14:54:061
2166739991612,3cyclictest24604-21gnome-shell08:06:591
2166739991611,1cyclictest2265838-21kworker/1:0+events_freezable08:29:411
2166739991611,1cyclictest2166736-21cyclictest09:02:301
2166739991611,1cyclictest191rcu_preempt11:34:091
2166739991611,1cyclictest191rcu_preempt10:21:071
2166739991611,1cyclictest191rcu_preempt09:10:141
2166739991610,1cyclictest82050irq/121-eno110:07:141
2166739991610,1cyclictest501rcuop/210:33:401
216673999160,5cyclictest2677024-21cut12:24:411
2213291151,2phc2sys0-21swapper/311:41:383
2213291151,2phc2sys0-21swapper/310:04:403
2213291150,3phc2sys0-21swapper/311:15:153
2213291150,3phc2sys0-21swapper/309:34:183
2213291150,2phc2sys0-21swapper/310:10:273
2213291150,2phc2sys0-21swapper/309:11:363
2213291150,1phc2sys0-21swapper/312:03:023
2166740991513,1cyclictest0-21swapper/210:15:032
2166740991512,1cyclictest0-21swapper/210:44:392
2166740991512,1cyclictest0-21swapper/209:32:312
2166740991512,1cyclictest0-21swapper/208:39:192
2166740991512,1cyclictest0-21swapper/208:34:392
2166740991512,1cyclictest0-21swapper/208:05:002
2166740991512,1cyclictest0-21swapper/207:46:592
2166740991511,2cyclictest0-21swapper/211:19:452
2166740991511,2cyclictest0-21swapper/208:49:382
216674099150,13cyclictest0-21swapper/212:10:072
216674099150,12cyclictest2467937-21chrt10:25:022
216673999158,1cyclictest82050irq/121-eno111:01:011
216673999157,7cyclictest0-21swapper/108:50:091
216673999156,5cyclictest0-21swapper/110:02:001
216673999153,6cyclictest0-21swapper/109:49:181
216673999153,3cyclictest1-21systemd08:45:021
216673999151,3cyclictest2444812-21irqstats10:14:381
2166739991512,2cyclictest341rcuc/110:30:011
2166739991512,2cyclictest2328623-21aten_repower_cu09:09:181
216673999151,13cyclictest341rcuc/107:20:031
2166739991511,3cyclictest2262654-21kthreadcore08:19:401
2166739991511,3cyclictest2257779-21kthreadcore08:14:411
2166739991510,1cyclictest2196955-21kworker/1:2+events_freezable07:41:591
2166739991510,1cyclictest2166736-21cyclictest11:26:251
2166739991510,1cyclictest2104544-21kworker/u16:2+events_unbound07:29:341
2213291141,6phc2sys0-21swapper/312:24:183
2213291140,4phc2sys0-21swapper/312:14:173
2213291140,4phc2sys0-21swapper/309:10:023
2213291140,3phc2sys0-21swapper/308:39:183
216674099148,3cyclictest2478832-21taskset10:34:122
216674099142,6cyclictest0-21swapper/212:24:182
216674099141,8cyclictest0-21swapper/209:09:172
216674099141,6cyclictest0-21swapper/211:44:202
2166740991411,2cyclictest0-21swapper/210:19:352
2166740991411,1cyclictest0-21swapper/212:25:592
2166740991411,1cyclictest0-21swapper/212:15:272
2166740991411,1cyclictest0-21swapper/212:05:182
2166740991411,1cyclictest0-21swapper/212:01:592
2166740991411,1cyclictest0-21swapper/211:55:012
2166740991411,1cyclictest0-21swapper/211:24:392
2166740991411,1cyclictest0-21swapper/211:14:442
2166740991411,1cyclictest0-21swapper/210:36:592
2166740991411,1cyclictest0-21swapper/210:04:282
2166740991411,1cyclictest0-21swapper/209:49:432
2166740991411,1cyclictest0-21swapper/208:44:382
2166740991411,1cyclictest0-21swapper/207:50:592
2166740991411,1cyclictest0-21swapper/207:40:592
2166740991411,1cyclictest0-21swapper/207:20:592
2166740991411,1cyclictest0-21swapper/207:13:132
2166740991411,1cyclictest0-21swapper/207:13:132
2166740991410,2cyclictest0-21swapper/208:52:092
2166740991410,2cyclictest0-21swapper/207:28:592
216673999149,2cyclictest341rcuc/109:30:411
216673999149,1cyclictest191rcu_preempt11:12:351
216673999149,1cyclictest191rcu_preempt07:39:431
216673999146,1cyclictest191rcu_preempt11:22:361
216673999145,2cyclictest191rcu_preempt08:49:411
216673999144,2cyclictest191rcu_preempt07:54:351
216673999143,6cyclictest36-21ksoftirqd/107:24:461
2166739991411,2cyclictest1011-21gdbus08:30:061
2166739991410,3cyclictest2288384-21irqrtprio08:39:391
2166739991410,3cyclictest2269977-21kthreadcore08:24:411
2166739991410,3cyclictest2221302-21kthreadcore07:49:411
216673999140,7cyclictest2592291-21ssh11:35:441
2166738991411,2cyclictest778-21dbus-daemon07:10:010
2213291132,2phc2sys0-21swapper/309:23:433
2213291130,2phc2sys0-21swapper/310:47:273
2213291130,2phc2sys0-21swapper/309:46:523
2213291130,2phc2sys0-21swapper/309:18:143
2213291130,1phc2sys0-21swapper/309:52:393
2213291130,1phc2sys0-21swapper/307:39:013
216674099139,2cyclictest0-21swapper/209:04:592
216674099132,5cyclictest0-21swapper/210:49:222
216674099131,7cyclictest0-21swapper/211:04:192
216674099131,6cyclictest0-21swapper/207:59:162
2166740991311,1cyclictest0-21swapper/210:59:342
2166740991311,1cyclictest0-21swapper/209:11:292
2166740991310,1cyclictest0-21swapper/212:39:412
2166740991310,1cyclictest0-21swapper/211:59:462
2166740991310,1cyclictest0-21swapper/211:09:422
2166740991310,1cyclictest0-21swapper/209:27:282
2166740991310,1cyclictest0-21swapper/209:21:242
2166740991310,1cyclictest0-21swapper/209:20:002
2166740991310,1cyclictest0-21swapper/208:59:392
2166740991310,1cyclictest0-21swapper/208:29:392
2166740991310,1cyclictest0-21swapper/208:24:402
2166740991310,1cyclictest0-21swapper/208:19:402
2166740991310,1cyclictest0-21swapper/208:09:372
216673999137,2cyclictest191rcu_preempt07:34:361
216673999133,5cyclictest2547704-21kworker/u16:4-xprtiod11:15:421
2166739991310,2cyclictest2237630-21pmu-power07:59:421
21604082131,6sleep20-21swapper/207:09:192
2213291122,2phc2sys0-21swapper/310:34:383
2213291122,2phc2sys0-21swapper/309:41:273
2213291120,3phc2sys0-21swapper/308:24:183
2213291120,2phc2sys0-21swapper/311:53:163
2213291120,2phc2sys0-21swapper/310:40:493
2213291120,2phc2sys0-21swapper/308:54:173
2213291120,2phc2sys0-21swapper/307:13:283
2213291120,2phc2sys0-21swapper/307:13:283
2213291120,1phc2sys0-21swapper/311:55:173
2213291120,1phc2sys0-21swapper/309:38:183
216674099129,1cyclictest0-21swapper/210:25:502
216674099129,1cyclictest0-21swapper/207:34:392
216674099128,2cyclictest0-21swapper/209:39:212
2166740991210,1cyclictest0-21swapper/212:34:392
2166740991210,1cyclictest0-21swapper/211:45:122
216673999129,2cyclictest0-21swapper/107:10:021
216673999123,6cyclictest0-21swapper/108:59:171
2213291111,3phc2sys0-21swapper/309:25:403
2213291110,5phc2sys0-21swapper/307:49:183
2213291110,2phc2sys0-21swapper/311:47:243
2213291110,2phc2sys0-21swapper/311:20:213
2213291110,2phc2sys0-21swapper/310:24:363
2213291110,1phc2sys0-21swapper/311:14:563
2213291110,1phc2sys0-21swapper/308:55:183
2213291110,1phc2sys0-21swapper/308:09:093
2213291101,2phc2sys0-21swapper/310:59:413
2213291101,2phc2sys0-21swapper/307:34:173
2213291101,2phc2sys0-21swapper/307:09:363
2213291100,3phc2sys0-21swapper/310:15:063
2213291100,2phc2sys0-21swapper/311:34:163
2213291100,2phc2sys0-21swapper/311:00:453
2213291100,2phc2sys0-21swapper/310:06:003
2213291100,2phc2sys0-21swapper/309:56:183
2213291100,2phc2sys0-21swapper/308:49:403
2213291100,2phc2sys0-21swapper/308:25:403
2213291100,2phc2sys0-21swapper/308:14:183
2213291100,2phc2sys0-21swapper/308:04:443
2213291100,2phc2sys0-21swapper/307:54:173
2213291100,2phc2sys0-21swapper/307:15:083
2213291100,1phc2sys0-21swapper/308:31:413
221329190,6phc2sys2211211-21chrt07:43:253
221329190,2phc2sys0-21swapper/307:29:123
221329190,2phc2sys0-21swapper/307:22:593
221329190,1phc2sys0-21swapper/308:42:233
221329180,2phc2sys0-21swapper/307:59:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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