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2025-12-28 - 20:44
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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 all highest latencies:
System rackeslot2.osadl.org (updated Sun Dec 28, 2025 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
256260021050,1sleep00-21swapper/007:33:230
27894772450,0sleep12789479-21grep10:08:251
253342599266,14cyclictest2902661-21apt-get11:13:180
2533425992618,4cyclictest191rcu_preempt11:30:020
26490912516,4phc2sys0-21swapper/310:10:003
2533425992517,4cyclictest191rcu_preempt11:58:240
2533425992516,4cyclictest191rcu_preempt10:28:160
253342599249,10cyclictest2780803-21rt-features10:03:300
253342599245,13cyclictest2580422-21kthreadcore07:48:240
2533425992416,4cyclictest191rcu_preempt12:28:240
2533425992412,4cyclictest2746189-21systemd09:45:020
25328492240,2sleep02369460-21kworker/u16:2+events_power_efficient07:08:300
253342599238,10cyclictest1327-21in:imuxsock09:05:020
253342599233,9cyclictest2707688-21cut09:23:260
253342599232,14cyclictest2869226-21ssh10:53:250
2533425992315,4cyclictest191rcu_preempt10:48:250
253342599231,15cyclictest2534006-21apt-get07:13:170
253342599229,8cyclictest2750549-21cut09:48:230
253342599228,8cyclictest0-21swapper/007:28:230
253342599226,10cyclictest2921385-21fschecks_time11:23:190
253342599222,5cyclictest2830227-21/usr/sbin/munin10:33:250
253342599222,18cyclictest2894255-21df11:08:210
253342599222,14cyclictest2587452-21kthreadcore07:53:230
253342599222,10cyclictest2991922-21taskset12:01:320
253342599222,10cyclictest2757769-21tail09:53:180
2533425992213,8cyclictest0-21swapper/011:05:010
2533425992213,4cyclictest191rcu_preempt12:21:280
253342599221,16cyclictest2803643-21hddtemp_smartct10:18:210
2533425992210,6cyclictest2665730-21sed08:58:210
253342599220,4cyclictest2728183-21kworker/u16:1+rpciod09:35:220
253342599220,2cyclictest0-21swapper/010:36:100
253342599220,15cyclictest2912891-21cut11:18:220
253342999216,9cyclictest0-21swapper/212:20:022
253342999214,12cyclictest0-21swapper/209:20:022
2533427992116,1cyclictest134050irq/121-eno111:05:011
2533427992115,2cyclictest2984425-21cstates11:58:181
253342599219,7cyclictest2566992-21/usr/sbin/munin07:38:290
253342599218,8cyclictest0-21swapper/008:23:240
253342599218,8cyclictest0-21swapper/008:23:240
253342599218,7cyclictest0-21swapper/010:24:390
253342599217,4cyclictest3045380-21ssh12:30:200
253342599216,10cyclictest3001709-21taskset12:07:360
253342599216,10cyclictest2853860-21taskset10:43:360
253342599216,10cyclictest2853860-21taskset10:43:360
253342599215,9cyclictest2648328-21cut08:43:220
253342599211,9cyclictest2692494-21ssh09:16:130
253342599211,3cyclictest2940632-21kthreadcore11:33:230
2533425992113,4cyclictest191rcu_preempt12:38:270
253342599211,10cyclictest2584863-21kworker/u16:3+nfsiod09:10:410
253342599210,4cyclictest2893533-21kworker/u16:3+rpciod11:36:110
253342599210,3cyclictest2966580-21ssh11:48:180
29610052200,2sleep20-21swapper/211:43:242
26643182200,3sleep30-21swapper/308:55:013
2649091200,2phc2sys0-21swapper/310:32:053
2649091200,2phc2sys0-21swapper/308:38:203
2533429992017,1cyclictest0-21swapper/211:23:232
2533427992017,2cyclictest2539577-21sh07:15:011
253342599209,6cyclictest2720738-21ssh09:32:240
253342599209,3cyclictest191rcu_preempt10:13:180
253342599208,4cyclictest2881003-21ssh10:58:450
253342599207,9cyclictest2764954-21sh09:55:450
253342599207,9cyclictest2764954-21sh09:55:450
253342599207,4cyclictest0-21swapper/012:13:230
253342599206,9cyclictest2591275-21taskset07:55:160
253342599203,11cyclictest2788955-21kthreadcore10:08:250
253342599202,8cyclictest2635101-21cstates08:33:210
253342599202,12cyclictest2717330-21gzip09:28:270
253342599202,11cyclictest2604498-21irqcore08:08:230
253342599201,5cyclictest2955409-21runrttasks11:41:020
253342599201,5cyclictest2681453-21latency09:08:260
2533425992015,4cyclictest2369460-21kworker/u16:2-events_unbound07:25:010
2533425992013,3cyclictest191rcu_preempt08:48:190
2533425992011,4cyclictest191rcu_preempt08:18:190
253342599200,6cyclictest2578633-21/usr/sbin/munin07:45:010
253342599200,4cyclictest2709907-21kworker/u16:2+rpciod11:51:370
253342599200,14cyclictest2540782-21cut07:15:030
2649091190,2phc2sys0-21swapper/311:12:213
2533429991916,1cyclictest0-21swapper/211:48:182
2533429991916,1cyclictest0-21swapper/211:00:502
2533429991916,1cyclictest0-21swapper/207:45:012
2533429991915,2cyclictest0-21swapper/210:18:292
2533429991910,6cyclictest27367142chrt09:39:442
2533427991916,2cyclictest2953329-21grep11:38:301
2533427991916,2cyclictest1313-21gmain08:30:001
2533427991916,2cyclictest0-21swapper/109:33:231
253342599198,6cyclictest2610112-21expr08:13:180
253342599198,6cyclictest2597976-21expr08:03:210
253342599190,2cyclictest0-21swapper/012:15:260
253342999184,10cyclictest0-21swapper/211:40:022
2533429991815,1cyclictest0-21swapper/212:28:252
2533429991815,1cyclictest0-21swapper/211:55:242
2533429991815,1cyclictest0-21swapper/211:18:182
2533429991815,1cyclictest0-21swapper/210:15:012
2533429991815,1cyclictest0-21swapper/209:41:502
2533429991815,1cyclictest0-21swapper/209:08:262
2533429991815,1cyclictest0-21swapper/207:48:212
2533429991815,1cyclictest0-21swapper/207:38:272
2533429991814,2cyclictest0-21swapper/211:08:202
2533429991814,2cyclictest0-21swapper/210:53:182
2533429991814,2cyclictest0-21swapper/209:34:552
2533429991814,2cyclictest0-21swapper/208:18:182
2533429991813,2cyclictest0-21swapper/210:03:182
253342999181,2cyclictest0-21swapper/207:59:232
2533427991815,2cyclictest3045114-21latency_hist12:30:021
2533427991815,2cyclictest1286-21avahi-daemon09:05:021
2533427991815,2cyclictest0-21swapper/107:20:011
253342599188,5cyclictest2659166-21expr08:53:180
253342599183,10cyclictest2628806-21cat08:28:180
253342599182,6cyclictest2641654-21irqcore08:38:230
253342999177,7cyclictest0-21swapper/211:00:022
2533429991715,1cyclictest0-21swapper/211:30:022
2533429991715,1cyclictest0-21swapper/210:36:102
2533429991714,1cyclictest0-21swapper/212:05:132
2533429991714,1cyclictest0-21swapper/212:01:512
2533429991714,1cyclictest0-21swapper/211:13:192
2533429991714,1cyclictest0-21swapper/210:33:232
2533429991714,1cyclictest0-21swapper/210:25:112
2533429991714,1cyclictest0-21swapper/209:46:102
2533429991714,1cyclictest0-21swapper/209:05:022
2533429991714,1cyclictest0-21swapper/207:53:182
2533429991713,2cyclictest0-21swapper/212:37:042
2533429991713,2cyclictest0-21swapper/210:48:212
2533429991713,2cyclictest0-21swapper/209:51:112
2533429991713,2cyclictest0-21swapper/209:13:232
2533429991713,2cyclictest0-21swapper/208:53:212
2533429991713,2cyclictest0-21swapper/207:13:172
2533429991712,3cyclictest0-21swapper/208:58:152
2533429991711,2cyclictest0-21swapper/212:23:172
2533429991710,1cyclictest0-21swapper/209:25:432
253342799179,3cyclictest1288-1atopacctd08:12:581
2533427991714,2cyclictest2773158-21latency_hist10:00:001
2533427991714,2cyclictest2773158-21latency_hist10:00:001
2533427991714,2cyclictest2691572-21systemd-run09:15:011
2533427991714,2cyclictest2658228-21latency_hist08:50:001
2533427991714,2cyclictest1327-21in:imuxsock11:30:001
2533427991713,3cyclictest2959539-21kthreadcore11:43:241
2533427991713,3cyclictest1-21systemd08:58:261
2533427991712,1cyclictest1109-21hwrng11:52:091
2533427991711,3cyclictest134050irq/121-eno109:44:181
2533427991711,2cyclictest3035891-21kworker/1:2+events_freezable12:38:131
2533427991711,2cyclictest2912837-21irqcore11:18:221
2533427991711,2cyclictest134050irq/121-eno110:01:241
2533427991710,3cyclictest134050irq/121-eno112:07:011
2649091161,2phc2sys0-21swapper/312:33:293
2649091160,4phc2sys0-21swapper/311:24:083
2649091160,2phc2sys0-21swapper/311:39:473
2649091160,1phc2sys0-21swapper/309:50:413
253342999166,8cyclictest0-21swapper/210:07:232
2533429991614,1cyclictest0-21swapper/209:23:082
2533429991614,1cyclictest0-21swapper/207:15:032
2533429991613,2cyclictest0-21swapper/207:33:232
2533429991613,1cyclictest0-21swapper/210:21:522
2533429991613,1cyclictest0-21swapper/208:33:232
2533429991613,1cyclictest0-21swapper/208:13:252
2533429991613,1cyclictest0-21swapper/208:08:212
2533429991613,1cyclictest0-21swapper/207:10:022
2533429991612,2cyclictest0-21swapper/208:23:302
2533429991612,2cyclictest0-21swapper/208:23:302
253342999160,4cyclictest0-21swapper/211:33:172
253342799168,7cyclictest134050irq/121-eno111:00:021
253342799168,1cyclictest134050irq/121-eno110:10:491
253342799165,4cyclictest0-21swapper/109:23:251
2533427991613,2cyclictest2999628-21cron12:05:011
2533427991613,2cyclictest2628244-21munin-plugin-st08:25:021
2533427991613,2cyclictest2628244-21munin-plugin-st08:25:021
2533427991612,3cyclictest1327-21in:imuxsock08:45:021
2533427991610,2cyclictest2840636-21kthreadcore10:38:251
2533427991610,1cyclictest25942781kthreadcore07:58:251
2533427991610,1cyclictest134050irq/121-eno112:30:431
2649091151,2phc2sys0-21swapper/309:35:013
2649091150,3phc2sys0-21swapper/312:12:563
2649091150,1phc2sys0-21swapper/312:38:103
253342999159,2cyclictest0-21swapper/209:55:022
253342999159,2cyclictest0-21swapper/209:55:022
2533429991513,1cyclictest0-21swapper/212:13:192
2533429991512,2cyclictest0-21swapper/211:53:152
2533429991512,2cyclictest0-21swapper/208:43:262
2533429991512,2cyclictest0-21swapper/208:28:162
2533429991512,1cyclictest0-21swapper/212:30:572
2533429991512,1cyclictest0-21swapper/210:43:172
2533429991512,1cyclictest0-21swapper/210:43:172
2533429991512,1cyclictest0-21swapper/208:36:052
2533429991512,1cyclictest0-21swapper/207:28:222
2533429991511,3cyclictest0-21swapper/208:03:192
2533429991511,2cyclictest0-21swapper/208:48:162
2533429991511,2cyclictest0-21swapper/207:23:222
253342799158,3cyclictest67-21khungtaskd09:50:471
253342799155,4cyclictest2718985-21systemctl09:30:011
253342799155,3cyclictest501rcuop/209:39:051
2533427991512,2cyclictest3033796-21kthreadcore12:23:251
2533427991512,2cyclictest2970943-21mailstats11:48:261
2533427991512,2cyclictest2945325-21sh11:35:001
2533427991512,2cyclictest2906510-21kthreadcore11:13:251
2533427991512,2cyclictest2858177-21sh10:48:221
2533427991512,2cyclictest2854991-21sh10:45:011
2533427991512,2cyclictest2854991-21sh10:45:011
2533427991512,2cyclictest2533444-21apt-config07:10:011
2533427991512,2cyclictest0-21swapper/112:11:001
2533427991512,1cyclictest501rcuop/210:25:211
2533427991511,3cyclictest2709907-21kworker/u16:2+nfsiod12:18:121
253342799151,13cyclictest2609107-21perf08:10:011
253342799150,3cyclictest0-21swapper/108:15:541
2649091144,2phc2sys0-21swapper/309:29:533
2649091140,2phc2sys0-21swapper/312:04:543
2649091140,2phc2sys0-21swapper/311:48:483
2649091140,2phc2sys0-21swapper/311:26:493
2649091140,2phc2sys0-21swapper/309:47:313
2649091140,2phc2sys0-21swapper/307:07:463
253342799148,3cyclictest134050irq/121-eno110:16:011
253342799148,2cyclictest501rcuop/210:53:241
253342799145,3cyclictest501rcuop/210:23:301
253342799144,5cyclictest2748514-21awk09:48:151
2533427991412,1cyclictest134050irq/121-eno111:07:401
2533427991411,2cyclictest2585270-21aten_repower_fr07:53:171
2533427991411,2cyclictest2575843-21kthreadcore07:43:241
2533427991411,2cyclictest2567096-21aten_repower_fr07:38:191
2533427991411,2cyclictest1326-21systemd-logind07:35:011
2533427991410,3cyclictest2746191-21kworker/u16:0+nfsiod10:31:441
2533427991410,3cyclictest2679662-21kthreadcore09:08:251
2533427991410,3cyclictest2584340-21unixbench-2d07:48:301
2649091132,2phc2sys0-21swapper/310:00:353
2649091131,2phc2sys0-21swapper/309:55:503
2649091131,2phc2sys0-21swapper/309:55:503
2649091130,2phc2sys0-21swapper/311:33:093
253342799137,2cyclictest134050irq/121-eno111:20:341
253342799137,2cyclictest134050irq/121-eno108:03:201
253342799136,5cyclictest257-21systemd-journal07:30:011
253342799132,6cyclictest134050irq/121-eno109:15:361
2533427991310,2cyclictest2658857-21aten2.4-expect08:53:171
2533427991310,2cyclictest2643430-21kthreadcore08:38:251
2533427991310,2cyclictest2635350-21gltestperf08:33:231
2649091124,3phc2sys0-21swapper/308:05:003
2649091123,2phc2sys0-21swapper/308:26:383
2649091122,2phc2sys0-21swapper/310:13:493
2649091121,5phc2sys0-21swapper/308:43:163
2649091120,3phc2sys0-21swapper/310:54:253
2649091120,2phc2sys0-21swapper/312:20:183
2649091120,2phc2sys0-21swapper/309:24:163
2649091120,2phc2sys0-21swapper/309:00:123
2649091120,1phc2sys0-21swapper/310:45:283
2649091120,1phc2sys0-21swapper/307:51:343
2649091120,1phc2sys0-21swapper/307:41:003
2649091120,1phc2sys0-21swapper/307:36:483
253342799120,3cyclictest0-21swapper/107:23:011
2649091112,2phc2sys0-21swapper/312:17:223
2649091112,2phc2sys0-21swapper/311:50:453
2649091111,2phc2sys0-21swapper/312:26:473
2649091111,2phc2sys0-21swapper/311:07:163
2649091111,2phc2sys0-21swapper/309:10:013
2649091111,2phc2sys0-21swapper/308:08:173
2649091110,2phc2sys0-21swapper/312:06:153
2649091110,2phc2sys0-21swapper/311:55:333
2649091110,2phc2sys0-21swapper/310:26:043
2649091110,2phc2sys0-21swapper/310:16:423
2649091110,2phc2sys0-21swapper/309:43:283
2649091110,2phc2sys0-21swapper/309:37:593
2649091110,2phc2sys0-21swapper/309:19:233
2649091110,2phc2sys0-21swapper/309:11:503
2649091110,2phc2sys0-21swapper/307:27:533
2649091110,2phc2sys0-21swapper/307:14:283
2649091110,1phc2sys0-21swapper/307:55:553
2649091110,1phc2sys0-21swapper/307:34:073
2649091110,1phc2sys0-21swapper/307:20:493
28103572101,6sleep30-21swapper/310:20:463
2649091101,2phc2sys0-21swapper/310:55:173
2649091101,2phc2sys0-21swapper/308:30:543
2649091100,2phc2sys0-21swapper/311:41:273
2649091100,2phc2sys0-21swapper/311:15:143
2649091100,2phc2sys0-21swapper/311:00:503
2649091100,2phc2sys0-21swapper/310:38:143
2649091100,2phc2sys0-21swapper/308:45:443
2649091100,2phc2sys0-21swapper/308:18:243
2649091100,2phc2sys0-21swapper/307:18:283
2649091100,1phc2sys0-21swapper/310:40:023
2649091100,1phc2sys0-21swapper/310:40:023
2649091100,1phc2sys0-21swapper/308:55:053
2649091100,1phc2sys0-21swapper/308:21:333
2649091100,1phc2sys0-21swapper/308:21:333
2649091100,1phc2sys0-21swapper/308:11:143
264909191,2phc2sys0-21swapper/307:48:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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