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2025-12-14 - 22:21
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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 Sun Dec 14, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27763752300,2sleep30-21swapper/312:25:013
2393115992624,1cyclictest2462202-21latency_hist08:05:020
2393124992119,1cyclictest0-21swapper/211:25:012
2393116992118,2cyclictest2770366-21grep12:20:011
2393116992017,2cyclictest2673496-21grep11:00:011
2393115992017,2cyclictest2794276-21idleruntime-cro12:40:010
2393124991917,1cyclictest0-21swapper/211:35:002
2393124991916,1cyclictest0-21swapper/210:50:002
2393124991916,1cyclictest0-21swapper/210:25:012
2393116991916,2cyclictest2637275-21/usr/sbin/munin10:30:011
239311599191,9cyclictest2682432-21tr11:08:420
2393115991916,2cyclictest2631003-21gpgconf10:25:010
2393115991913,2cyclictest191rcu_preempt08:00:010
2393115991911,3cyclictest16-21ksoftirqd/011:35:010
2902298180,7rtkit-daemon2016-21snmpd10:44:090
2393116991815,2cyclictest2612523-21gpgconf10:10:011
2393116991815,2cyclictest1326-21systemd-logind11:34:551
2393116991814,3cyclictest1329-21rs:main1
2393115991812,2cyclictest191rcu_preempt11:25:000
2393115991810,2cyclictest191rcu_preempt09:50:000
2649091170,1phc2sys0-21swapper/309:28:393
2649091170,1phc2sys0-21swapper/309:14:563
2393124991714,1cyclictest0-21swapper/210:30:022
2393124991714,1cyclictest0-21swapper/210:10:002
2393124991714,1cyclictest0-21swapper/208:50:012
2393124991714,1cyclictest0-21swapper/208:43:392
2393124991714,1cyclictest0-21swapper/208:40:002
2393124991714,1cyclictest0-21swapper/207:20:012
2393116991714,2cyclictest2449743-21systemd-run07:55:011
2393116991714,2cyclictest2393112-21cyclictest12:25:021
2393116991714,2cyclictest2386431-21kworker/u16:0-ext4-rsv-conversion07:40:001
239311599179,3cyclictest16-21ksoftirqd/008:45:020
239311599179,2cyclictest191rcu_preempt07:28:410
239311599176,7cyclictest2572369-21tr09:38:420
239311599176,4cyclictest2464887-21tr08:08:410
239311599175,7cyclictest1290-21dbus-daemon09:10:010
239311599175,7cyclictest1290-21dbus-daemon09:10:010
239311599174,1cyclictest191rcu_preempt11:50:000
239311599173,7cyclictest2470122-21tr08:13:420
2393115991714,2cyclictest2393112-21cyclictest09:25:020
2393115991714,2cyclictest1327-21in:imuxsock12:00:020
2393115991714,2cyclictest1290-21dbus-daemon12:30:010
2393115991714,2cyclictest1290-21dbus-daemon10:20:010
2393115991712,1cyclictest191rcu_preempt10:13:410
239311599170,6cyclictest2439038-21hddtemp_smartct07:48:380
2393124991613,1cyclictest0-21swapper/211:53:462
2393124991613,1cyclictest0-21swapper/210:35:002
2393124991613,1cyclictest0-21swapper/210:20:012
2393124991613,1cyclictest0-21swapper/209:53:402
2393124991613,1cyclictest0-21swapper/208:58:422
239311699169,5cyclictest257-21systemd-journal08:55:011
2393116991613,2cyclictest2709759-21latency_hist11:30:001
2393116991613,2cyclictest2709759-21latency_hist11:30:001
2393116991613,2cyclictest2696732-21needreboot11:18:441
2393116991612,3cyclictest2735963-21kthreadcore11:53:401
239311599168,3cyclictest16-21ksoftirqd/011:40:020
239311599168,3cyclictest16-21ksoftirqd/010:55:020
239311599167,4cyclictest2605191-21kthreadcore10:03:430
239311599163,7cyclictest2631845-21cpuspeed_turbos10:28:370
239311599163,6cyclictest16-21ksoftirqd/007:18:420
239311599162,9cyclictest16-21ksoftirqd/007:33:430
2393115991613,2cyclictest2776481-21munin-plugin-st12:25:020
2393115991613,1cyclictest241rcuc/010:35:020
2393115991612,2cyclictest2782830-21/usr/sbin/munin12:33:450
239311599160,14cyclictest2764194-21latency_hist12:15:000
2649091151,2phc2sys0-21swapper/310:10:023
2393124991513,1cyclictest0-21swapper/212:38:442
2393124991513,1cyclictest0-21swapper/210:00:012
2393124991513,1cyclictest0-21swapper/207:30:002
2393124991512,1cyclictest0-21swapper/212:03:362
2393124991512,1cyclictest0-21swapper/211:00:002
2393124991512,1cyclictest0-21swapper/210:44:092
2393124991512,1cyclictest0-21swapper/209:03:362
2393124991512,1cyclictest0-21swapper/207:58:402
2393124991512,1cyclictest0-21swapper/207:40:012
2393124991512,1cyclictest0-21swapper/207:25:002
2393116991512,2cyclictest2613227-21/usr/sbin/munin10:13:451
2393116991512,2cyclictest2513493-21kthreadcore08:48:431
2393116991512,2cyclictest1286-21avahi-daemon09:05:011
2393116991512,2cyclictest0-21swapper/111:25:011
2393116991511,3cyclictest2792567-21kthreadcore12:38:431
2393116991511,3cyclictest1326-21systemd-logind09:10:001
2393116991511,3cyclictest1326-21systemd-logind09:10:001
239311599159,1cyclictest191rcu_preempt09:13:370
239311599158,3cyclictest191rcu_preempt08:23:420
239311599157,3cyclictest2757394-21cat12:08:480
239311599157,3cyclictest16-21ksoftirqd/010:00:000
239311599157,3cyclictest16-21ksoftirqd/009:00:010
239311599157,3cyclictest16-21ksoftirqd/007:23:430
239311599157,2cyclictest191rcu_preempt10:58:420
239311599156,3cyclictest16-21ksoftirqd/011:43:420
239311599156,3cyclictest16-21ksoftirqd/011:18:460
239311599154,2cyclictest191rcu_preempt08:18:410
239311599153,2cyclictest191rcu_preempt10:08:370
239311599151,8cyclictest2704309-21find11:28:340
239311599151,8cyclictest2704309-21find11:28:340
2393115991513,1cyclictest2691448-21latency_hist11:15:010
2393115991512,2cyclictest2649343-21munin-plugin-st10:40:000
2393115991512,2cyclictest2564555-21sh09:30:020
2393115991512,2cyclictest2504132-21grep08:40:000
2393115991512,2cyclictest2444969-21fschecks_time07:53:380
2393115991512,2cyclictest1326-21systemd-logind11:05:020
2393115991512,2cyclictest1286-21avahi-daemon09:05:000
2393115991511,2cyclictest0-21swapper/009:20:000
2649091148,2phc2sys0-21swapper/311:30:013
2649091148,2phc2sys0-21swapper/311:30:013
2393124991412,1cyclictest0-21swapper/211:15:022
2393124991412,1cyclictest0-21swapper/208:05:012
2393124991411,1cyclictest0-21swapper/212:23:372
2393124991411,1cyclictest0-21swapper/212:18:482
2393124991411,1cyclictest0-21swapper/212:10:002
2393124991411,1cyclictest0-21swapper/211:08:462
2393124991411,1cyclictest0-21swapper/210:03:492
2393124991411,1cyclictest0-21swapper/209:13:412
2393124991411,1cyclictest0-21swapper/209:08:412
2393124991411,1cyclictest0-21swapper/209:08:412
2393124991411,1cyclictest0-21swapper/208:53:372
2393124991411,1cyclictest0-21swapper/208:10:012
2393124991411,1cyclictest0-21swapper/207:55:002
2393124991411,1cyclictest0-21swapper/207:48:322
2393124991411,1cyclictest0-21swapper/207:35:002
2393124991411,1cyclictest0-21swapper/207:15:012
239311699147,3cyclictest0-21swapper/110:33:361
2393116991411,2cyclictest2763526-21pmu-power12:13:461
2393116991411,2cyclictest2599836-21sendmail_mailqu09:58:461
2393116991411,2cyclictest2593571-21missed_timers09:53:431
2393116991411,2cyclictest2588347-21dump-pmu-power09:50:001
2393116991411,2cyclictest2558527-21sh09:25:021
2393116991411,2cyclictest2501110-21kthreadcore08:38:421
2393116991411,2cyclictest2455522-21unixbench_multi07:58:471
2393116991411,2cyclictest1996-21runrttasks11:58:401
2393116991411,2cyclictest1288-1atopacctd09:38:551
2393116991411,2cyclictest1-21systemd08:20:011
2393116991411,2cyclictest0-21swapper/110:25:011
2393116991410,3cyclictest2725409-21kthreadcore11:43:431
2393116991410,3cyclictest2717922-21kthreadcore11:38:411
2393116991410,3cyclictest2677872-21kthreadcore11:03:421
2393116991410,3cyclictest2605309-21kthreadcore10:03:431
2393116991410,3cyclictest2482826-21kthreadcore08:23:421
2393116991410,3cyclictest2394296-21gltestperf07:13:351
239311599149,4cyclictest2746850-21aten2.4-expect12:03:360
239311599149,1cyclictest191rcu_preempt08:47:030
239311599146,2cyclictest191rcu_preempt07:13:390
239311599145,3cyclictest2564661-21sshd09:30:550
239311599145,3cyclictest16-21ksoftirqd/009:53:400
239311599144,4cyclictest2767583-21tr12:18:420
239311599144,1cyclictest191rcu_preempt07:43:420
239311599143,7cyclictest2486725-21aten2.4-expect08:28:360
239311599143,6cyclictest16-21ksoftirqd/008:53:470
239311599143,5cyclictest0-21swapper/010:48:430
239311599142,6cyclictest16-21ksoftirqd/011:53:460
2393115991411,2cyclictest2579742-21kthreadcore09:43:410
2393115991410,1cyclictest191rcu_preempt08:33:350
2649091131,1phc2sys0-21swapper/310:53:423
2393124991311,1cyclictest0-21swapper/211:58:402
2393124991311,1cyclictest0-21swapper/211:18:372
2393124991311,1cyclictest0-21swapper/209:43:402
2393124991310,1cyclictest0-21swapper/212:33:412
2393124991310,1cyclictest0-21swapper/211:43:432
2393124991310,1cyclictest0-21swapper/210:53:422
2393124991310,1cyclictest0-21swapper/210:38:402
2393124991310,1cyclictest0-21swapper/209:33:412
2393124991310,1cyclictest0-21swapper/208:33:412
2393124991310,1cyclictest0-21swapper/208:13:422
239311699139,3cyclictest2665212-21kthreadcore10:53:431
239311699139,3cyclictest2566531-21kthreadcore09:33:411
239311699134,5cyclictest2782277-21idleruntime-cro12:30:001
239311699133,3cyclictest341rcuc/110:48:411
2393116991310,2cyclictest2784162-21sed12:33:401
2393116991310,2cyclictest2755357-21kthreadcore12:08:431
2393116991310,2cyclictest2731409-21kthreadcore11:48:421
2393116991310,2cyclictest2651233-21kthreadcore10:43:391
2393116991310,2cyclictest2644289-21cstates10:38:361
2393116991310,2cyclictest2620604-21kernelversion10:18:411
2393116991310,2cyclictest2577893-21irqcore09:43:401
2393116991310,2cyclictest2559597-21gltestperf09:28:381
2393116991310,2cyclictest2550445-21kthreadcore09:18:431
2393116991310,2cyclictest2510431-21latency_hist08:45:021
2393116991310,2cyclictest2494242-21kthreadcore08:33:411
2393116991310,2cyclictest2486705-21aten_repower_cu08:28:361
2393116991310,2cyclictest2473454-21processes08:13:461
2393116991310,2cyclictest2467333-21phc2sys08:08:431
2393116991310,2cyclictest2432809-21sh07:43:371
2393116991310,2cyclictest2416688-21kthreadcore07:28:471
2393116991310,2cyclictest2408693-21gltestperf07:23:401
2393116991310,2cyclictest2403171-21kthreadcore07:18:411
2393116991310,2cyclictest2393303-21latency_hist07:10:021
239311599138,1cyclictest2386431-21kworker/u16:0+events_unbound07:10:020
239311599135,3cyclictest16-21ksoftirqd/007:38:410
2649091120,2phc2sys0-21swapper/307:13:383
2649091120,1phc2sys0-21swapper/312:19:063
2649091120,1phc2sys0-21swapper/312:14:293
2649091120,1phc2sys0-21swapper/310:19:563
239312499129,1cyclictest0-21swapper/211:28:442
239312499129,1cyclictest0-21swapper/211:28:442
239312499129,1cyclictest0-21swapper/211:03:392
239312499129,1cyclictest0-21swapper/210:13:202
239312499129,1cyclictest0-21swapper/209:18:412
239312499129,1cyclictest0-21swapper/208:28:422
239312499129,1cyclictest0-21swapper/207:42:492
2393124991210,1cyclictest0-21swapper/211:38:382
2393124991210,1cyclictest0-21swapper/209:38:362
2393124991210,1cyclictest0-21swapper/208:23:362
2393124991210,1cyclictest0-21swapper/208:18:412
239311699129,2cyclictest2750833-21kthreadcore12:03:421
239311699129,2cyclictest2540889-21aten_repower_en09:13:361
239311699129,2cyclictest2441591-21kthreadcore07:48:411
239311699127,4cyclictest2457428-21cut08:03:391
239311699126,2cyclictest2902298rtkit-daemon11:11:331
239311699121,6cyclictest2523783-21irqcore08:58:401
2649091111,2phc2sys0-21swapper/311:43:353
2649091110,2phc2sys0-21swapper/311:20:503
2649091110,1phc2sys0-21swapper/311:45:223
2649091110,1phc2sys0-21swapper/308:33:443
239312499119,1cyclictest0-21swapper/212:26:282
239312499119,1cyclictest0-21swapper/212:13:382
239312499119,1cyclictest0-21swapper/209:48:362
239312499119,1cyclictest0-21swapper/209:25:132
239312499119,1cyclictest0-21swapper/209:22:082
239312499118,1cyclictest0-21swapper/211:45:302
239311699118,2cyclictest2421488-21kthreadcore07:33:421
2649091101,2phc2sys0-21swapper/307:48:363
2649091101,2phc2sys0-21swapper/307:18:353
2649091100,2phc2sys0-21swapper/310:59:063
2649091100,2phc2sys0-21swapper/310:50:013
2649091100,2phc2sys0-21swapper/307:58:343
2649091100,2phc2sys0-21swapper/307:43:353
2649091100,2phc2sys0-21swapper/307:23:403
2649091100,2phc2sys0-21swapper/307:10:013
2649091100,1phc2sys0-21swapper/312:35:213
2649091100,1phc2sys0-21swapper/312:04:183
2649091100,1phc2sys0-21swapper/311:33:533
2649091100,1phc2sys0-21swapper/311:11:013
2649091100,1phc2sys0-21swapper/310:41:523
2649091100,1phc2sys0-21swapper/310:29:563
2649091100,1phc2sys0-21swapper/309:46:103
2649091100,1phc2sys0-21swapper/309:03:103
2649091100,1phc2sys0-21swapper/308:47:393
2649091100,1phc2sys0-21swapper/308:25:513
2649091100,1phc2sys0-21swapper/308:20:263
2649091100,1phc2sys0-21swapper/308:09:323
2649091100,1phc2sys0-21swapper/307:51:493
2649091100,1phc2sys0-21swapper/307:35:423
2649091100,1phc2sys0-21swapper/307:33:213
2649091100,1phc2sys0-21swapper/307:27:123
264909191,3phc2sys0-21swapper/309:25:013
264909191,2phc2sys0-21swapper/309:58:483
264909191,2phc2sys0-21swapper/308:03:393
264909190,6phc2sys2600786-21chrt10:01:273
264909190,2phc2sys0-21swapper/311:38:343
264909190,2phc2sys0-21swapper/311:18:423
264909190,2phc2sys0-21swapper/310:23:363
264909190,2phc2sys0-21swapper/309:45:023
264909190,2phc2sys0-21swapper/309:39:563
264909190,2phc2sys0-21swapper/309:00:023
264909190,2phc2sys0-21swapper/308:40:013
264909190,1phc2sys0-21swapper/311:05:323
264909190,1phc2sys0-21swapper/309:18:053
23931249997,1cyclictest0-21swapper/207:10:012
264909182,1phc2sys0-21swapper/308:10:563
264909181,2phc2sys0-21swapper/311:03:233
264909181,2phc2sys0-21swapper/310:13:343
264909181,2phc2sys0-21swapper/308:51:123
264909180,2phc2sys0-21swapper/312:34:563
264909180,2phc2sys0-21swapper/312:28:363
264909180,2phc2sys0-21swapper/311:55:013
264909180,2phc2sys0-21swapper/310:38:353
264909180,2phc2sys0-21swapper/310:32:253
264909180,2phc2sys0-21swapper/309:53:353
264909180,2phc2sys0-21swapper/309:33:363
264909180,1phc2sys0-21swapper/312:07:553
264909180,1phc2sys0-21swapper/311:58:413
264909180,1phc2sys0-21swapper/309:08:353
264909180,1phc2sys0-21swapper/309:08:353
264909180,1phc2sys0-21swapper/308:43:343
264909180,1phc2sys0-21swapper/308:16:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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