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2026-09-11 - 12:20
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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
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rack0slot2.osadl.org (updated Fri Sep 11, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27258222690,0sleep50-21swapper/521:34:415
242870225745,8sleep40-21swapper/419:08:104
241928025519,30sleep70-21swapper/719:05:007
242867224534,8sleep60-21swapper/619:07:486
2429116994136,4cyclictest3176141-21latency_hist00:39:587
242879823928,8sleep50-21swapper/519:09:315
2429116993328,4cyclictest3115201-21latency_hist00:14:597
2429116993231,0cyclictest0-21swapper/723:32:267
2429116993231,0cyclictest0-21swapper/721:17:067
2429116993130,0cyclictest0-21swapper/700:23:177
2429116993125,5cyclictest645-21systemd-journal22:24:587
2429116993027,2cyclictest2954916-21ssh23:06:027
2429116993024,5cyclictest645-21systemd-journal00:19:577
2429110992927,2cyclictest2635765-21kworker/u16:5+events_unbound22:30:545
30157532280,0chrt0-21swapper/523:31:095
2429116992827,0cyclictest0-21swapper/722:06:187
2429116992827,0cyclictest0-21swapper/721:56:337
2429116992827,0cyclictest0-21swapper/721:21:147
2429110992826,2cyclictest2775065-21kworker/u16:3+flush-8:023:42:335
2429116992726,0cyclictest0-21swapper/723:01:027
2429116992726,0cyclictest0-21swapper/700:06:267
27259122260,1chrt2725913-21rm21:34:517
2429116992625,0cyclictest0-21swapper/723:44:377
2429116992625,0cyclictest0-21swapper/722:59:137
2429116992624,1cyclictest2737839-21ssh21:39:257
2429116992624,1cyclictest0-21swapper/721:26:337
2429114992622,3cyclictest2655655-21cat21:04:596
2429110992624,2cyclictest2635765-21kworker/u16:5+flush-8:021:55:295
2429110992623,2cyclictest3113996-21kworker/u16:2+flush-8:000:15:045
2429116992524,0cyclictest0-21swapper/723:12:007
2429116992522,2cyclictest3089296-21sh00:02:007
2429116992423,0cyclictest0-21swapper/723:16:137
2429116992423,0cyclictest0-21swapper/722:53:147
2429116992423,0cyclictest0-21swapper/722:38:557
2429116992423,0cyclictest0-21swapper/722:00:417
2429116992423,0cyclictest0-21swapper/700:31:327
2429116992422,1cyclictest2772862-21ssh21:51:277
2429116992421,2cyclictest3151380-21ssh00:29:197
2429114992420,3cyclictest2665608-21kworker/u16:2+flush-8:021:16:046
2429110992422,2cyclictest2835808-21kworker/u16:1+flush-8:000:07:335
2429110992422,2cyclictest2635765-21kworker/u16:5+flush-8:021:36:365
2429110992422,2cyclictest2613867-21kworker/u16:3+events_unbound20:44:305
2429110992422,2cyclictest2613867-21kworker/u16:3+events_unbound20:44:305
2429110992422,2cyclictest2471130-21kworker/u16:2+events_unbound19:49:025
2429116992322,0cyclictest0-21swapper/722:26:017
2429116992322,0cyclictest0-21swapper/719:57:167
2429110992321,2cyclictest2835808-21kworker/u16:1+flush-8:022:52:025
2429116992221,0cyclictest0-21swapper/720:23:437
2429110992220,2cyclictest2665608-21kworker/u16:2+events_unbound21:10:065
2429110992220,2cyclictest2549270-21kworker/u16:1+events_unbound20:13:195
2429116992120,0cyclictest0-21swapper/723:49:447
2429116992120,0cyclictest0-21swapper/723:49:447
2429116992120,0cyclictest0-21swapper/722:47:567
2429116992120,0cyclictest0-21swapper/722:47:567
2429116992120,0cyclictest0-21swapper/722:14:297
2429116992120,0cyclictest0-21swapper/720:49:277
2429116992119,1cyclictest0-21swapper/722:40:447
2429116992119,1cyclictest0-21swapper/722:40:447
242911699210,1cyclictest0-21swapper/722:30:217
2429110992119,2cyclictest2549270-21kworker/u16:1+events_unbound20:38:345
2429110992119,2cyclictest2549270-21kworker/u16:1+events_unbound20:38:345
2429110992119,2cyclictest2451082-21kworker/u16:0+events_unbound20:32:345
2429116992019,0cyclictest0-21swapper/720:58:127
2429116992019,0cyclictest0-21swapper/720:03:557
2429116992018,1cyclictest0-21swapper/721:46:217
2429110992018,2cyclictest2626767-21kworker/u16:4+events_unbound21:08:385
2429110992018,2cyclictest2471130-21kworker/u16:2+events_unbound19:37:185
2429110992018,2cyclictest2451082-21kworker/u16:0+events_unbound21:20:105
2429110992018,2cyclictest2451082-21kworker/u16:0+events_unbound19:20:475
2429110992018,2cyclictest1747060-21kworker/u16:4+flush-8:019:53:065
2429116991918,0cyclictest0-21swapper/720:30:287
2429116991918,0cyclictest0-21swapper/719:31:037
2429110991917,2cyclictest2626767-21kworker/u16:4+events_unbound20:54:145
2429110991917,2cyclictest2549270-21kworker/u16:1+events_unbound20:48:185
2429110991917,2cyclictest2471130-21kworker/u16:2+events_unbound19:34:385
2429110991916,2cyclictest2726327-21kworker/u16:2+flush-8:021:40:185
2429116991817,0cyclictest0-21swapper/720:51:477
2429116991817,0cyclictest0-21swapper/720:18:427
2429116991817,0cyclictest0-21swapper/720:13:047
2429116991817,0cyclictest0-21swapper/719:46:117
242911499180,14cyclictest0-21swapper/622:38:026
2429110991816,2cyclictest2775065-21kworker/u16:3+flush-8:023:49:125
2429110991816,2cyclictest2775065-21kworker/u16:3+flush-8:023:49:125
2429110991816,2cyclictest2775065-21kworker/u16:3+events_unbound22:24:535
2429110991816,2cyclictest2775064-21kworker/u16:0+events_unbound22:10:045
2429110991816,2cyclictest2549270-21kworker/u16:1+events_unbound20:19:465
2429116991716,0cyclictest0-21swapper/721:07:577
2429116991716,0cyclictest0-21swapper/720:37:477
2429116991716,0cyclictest0-21swapper/720:37:477
2429116991716,0cyclictest0-21swapper/719:16:557
2429116991714,2cyclictest0-21swapper/719:41:507
2429116991710,5cyclictest645-21systemd-journal21:14:587
2429114991713,3cyclictest2896428-21cat22:44:586
2429114991713,3cyclictest2896428-21cat22:44:586
2429110991715,2cyclictest2775065-21kworker/u16:3+events_unbound00:13:215
2429110991715,2cyclictest2549270-21kworker/u16:1+events_unbound20:21:145
2429110991715,2cyclictest2451082-21kworker/u16:0+flush-8:020:56:305
2429110991715,2cyclictest2451082-21kworker/u16:0+events_unbound20:25:345
2429110991713,3cyclictest3070414-21kthreadcore23:55:185
2429108991710,6cyclictest2548891-21latency_hist20:09:594
242910899170,17cyclictest0-21swapper/400:17:124
29261862160,0sleep5741rcuc/522:55:195
242911699169,5cyclictest645-21systemd-journal23:29:587
2429116991615,0cyclictest0-21swapper/720:41:517
2429116991615,0cyclictest0-21swapper/720:41:517
2429116991615,0cyclictest0-21swapper/720:27:437
2429116991615,0cyclictest0-21swapper/719:35:407
2429116991615,0cyclictest0-21swapper/719:29:157
242911699160,14cyclictest2750317-21turbostat21:44:587
2429114991611,4cyclictest2490953-21cat19:39:586
2429114991611,1cyclictest0-21swapper/623:10:496
2429110991614,2cyclictest3139555-21kworker/u16:5+flush-8:000:30:325
2429110991614,2cyclictest2775065-21kworker/u16:3+flush-8:023:35:385
2429110991614,2cyclictest2726327-21kworker/u16:2+flush-8:021:48:135
2429110991614,2cyclictest2471130-21kworker/u16:2+events_unbound19:55:485
2429110991614,2cyclictest2451082-21kworker/u16:0+flush-8:020:07:315
2429110991614,2cyclictest2451082-21kworker/u16:0+events_unbound21:02:305
242910899160,0cyclictest0-21swapper/400:34:144
242911699158,6cyclictest5923-21gmain22:19:297
2429116991514,0cyclictest0-21swapper/720:09:337
2429116991514,0cyclictest0-21swapper/719:23:377
2429110991513,2cyclictest3030407-21kworker/u16:2+events_unbound00:04:585
2429110991513,2cyclictest2835808-21kworker/u16:1+flush-8:022:41:435
2429110991513,2cyclictest2835808-21kworker/u16:1+flush-8:022:41:435
2429110991513,2cyclictest2775065-21kworker/u16:3+flush-8:022:05:035
2429110991513,2cyclictest2635765-21kworker/u16:5+events_unbound21:25:115
2429110991513,2cyclictest2391527-21kworker/u16:5+events_unbound19:13:065
2429110991512,2cyclictest2835808-21kworker/u16:1+flush-8:023:00:195
242911099150,1cyclictest0-21swapper/523:07:515
2429108991511,3cyclictest2944862-21latency_hist23:04:584
2429108991511,3cyclictest2811711-21/usr/sbin/munin22:10:264
2429116991413,0cyclictest0-21swapper/719:53:187
242911499146,7cyclictest2843467-21kthreadcore22:20:196
2429114991413,1cyclictest0-21swapper/623:53:336
2429114991413,1cyclictest0-21swapper/623:47:156
2429114991413,1cyclictest0-21swapper/623:47:156
2429114991413,1cyclictest0-21swapper/623:40:566
2429114991413,1cyclictest0-21swapper/623:17:086
2429114991413,1cyclictest0-21swapper/621:48:416
2429114991413,1cyclictest0-21swapper/621:32:076
2429114991413,1cyclictest0-21swapper/600:12:196
242911499141,13cyclictest0-21swapper/623:36:596
2429114991411,2cyclictest2471130-21kworker/u16:2+flush-8:019:30:566
2429114991410,3cyclictest3139457-21updatedb00:24:536
242911499140,1cyclictest0-21swapper/623:26:076
242911499140,1cyclictest0-21swapper/622:19:356
242911499140,1cyclictest0-21swapper/600:28:436
2429110991413,1cyclictest0-21swapper/522:47:305
2429110991413,1cyclictest0-21swapper/522:47:305
2429110991413,1cyclictest0-21swapper/520:00:235
2429110991413,1cyclictest0-21swapper/500:21:285
2429110991412,2cyclictest3115612-21kworker/u16:4+flush-8:000:35:185
2429110991412,2cyclictest2775065-21kworker/u16:3+events_unbound23:25:125
2429110991412,2cyclictest2775064-21kworker/u16:0+flush-8:022:16:585
2429110991412,2cyclictest2635765-21kworker/u16:5+events_unbound22:25:365
2429110991412,2cyclictest2428894-21kworker/u16:1+events_unbound19:27:225
2429110991412,2cyclictest2428894-21kworker/u16:1+events_unbound19:17:225
2429110991412,2cyclictest1747060-21kworker/u16:4+events_unbound19:40:555
242911099140,0cyclictest0-21swapper/521:52:005
242910899149,2cyclictest0-21swapper/421:53:444
242910899145,8cyclictest2725995-21grep21:34:594
2429108991413,1cyclictest0-21swapper/423:56:524
2429108991412,2cyclictest0-21swapper/421:19:504
2429108991410,3cyclictest1747060-21kworker/u16:4+flush-8:019:16:094
242910899140,14cyclictest0-21swapper/423:51:214
242910899140,13cyclictest0-21swapper/423:05:004
2429116991312,0cyclictest0-21swapper/719:13:357
2429116991310,2cyclictest1274-21snmpd21:02:257
2429114991312,1cyclictest0-21swapper/622:34:536
2429114991312,1cyclictest0-21swapper/622:28:346
2429114991312,1cyclictest0-21swapper/621:59:246
2429114991312,1cyclictest0-21swapper/621:29:276
2429114991312,1cyclictest0-21swapper/600:03:106
242911499130,1cyclictest0-21swapper/619:25:176
242911499130,13cyclictest0-21swapper/621:24:056
242911499130,13cyclictest0-21swapper/600:16:256
242911499130,0cyclictest0-21swapper/621:51:226
2429110991312,1cyclictest3139555-21kworker/u16:5+flush-8:000:25:385
2429110991312,1cyclictest0-21swapper/523:51:125
2429110991312,1cyclictest0-21swapper/523:11:005
2429110991312,1cyclictest0-21swapper/522:03:405
2429110991311,2cyclictest2775065-21kworker/u16:3+flush-8:023:15:155
242910899134,3cyclictest2706850-21cut21:25:184
2429108991312,1cyclictest0-21swapper/423:20:554
2429108991312,1cyclictest0-21swapper/422:42:174
2429108991312,1cyclictest0-21swapper/422:42:174
2429108991312,1cyclictest0-21swapper/422:04:084
2429108991312,1cyclictest0-21swapper/400:04:454
2429108991310,3cyclictest0-21swapper/419:53:544
242910899130,1cyclictest0-21swapper/423:28:384
242910899130,1cyclictest0-21swapper/422:45:554
242910899130,1cyclictest0-21swapper/422:45:554
242910899130,13cyclictest0-21swapper/422:57:164
242910899130,13cyclictest0-21swapper/400:28:144
242910899130,13cyclictest0-21swapper/400:22:434
242910899130,13cyclictest0-21swapper/400:11:134
242910899130,0cyclictest0-21swapper/422:25:534
242911699129,2cyclictest1274-21snmpd23:39:057
242911699128,3cyclictest1274-21snmpd23:50:147
242911699128,3cyclictest1274-21snmpd23:23:477
242911499127,4cyclictest2627600-21cat20:50:156
2429114991211,1cyclictest0-21swapper/623:31:576
2429114991211,1cyclictest0-21swapper/622:52:516
2429114991211,1cyclictest0-21swapper/621:37:296
2429114991211,1cyclictest0-21swapper/620:30:296
2429114991211,1cyclictest0-21swapper/620:08:156
2429114991211,1cyclictest0-21swapper/619:52:196
242911499120,12cyclictest0-21swapper/621:06:266
242911499120,0cyclictest0-21swapper/620:38:226
242911499120,0cyclictest0-21swapper/620:38:226
2429110991210,2cyclictest2932876-21kworker/u16:0+events_unbound23:22:285
2429110991210,2cyclictest2869922-21kworker/u16:0+flush-8:022:35:035
2429110991210,2cyclictest2635765-21kworker/u16:5+flush-8:021:15:145
242910899126,5cyclictest0-21swapper/420:10:264
242910899125,3cyclictest0-21swapper/422:05:184
242910899124,3cyclictest3095536-21kthreadcore00:05:174
242910899124,3cyclictest2831475-21kthreadcore22:15:184
242910899123,4cyclictest2662707-21tr21:05:194
242910899123,4cyclictest2651475-21grep21:00:174
2429108991211,1cyclictest0-21swapper/423:43:374
2429108991211,1cyclictest0-21swapper/423:13:114
2429108991211,1cyclictest0-21swapper/422:38:114
2429108991211,1cyclictest0-21swapper/421:10:414
2429108991211,1cyclictest0-21swapper/400:39:454
242910899120,12cyclictest0-21swapper/422:53:384
242910899120,12cyclictest0-21swapper/421:46:574
242910899120,12cyclictest0-21swapper/420:25:454
242910899120,11cyclictest0-21swapper/419:10:044
242911699118,2cyclictest0-21swapper/723:55:127
2429114991110,1cyclictest0-21swapper/623:58:076
2429114991110,1cyclictest0-21swapper/622:55:326
2429114991110,1cyclictest0-21swapper/622:10:076
2429114991110,1cyclictest0-21swapper/622:07:266
2429114991110,1cyclictest0-21swapper/621:11:576
2429114991110,1cyclictest0-21swapper/620:48:276
2429114991110,1cyclictest0-21swapper/620:43:246
2429114991110,1cyclictest0-21swapper/620:43:246
2429114991110,1cyclictest0-21swapper/620:17:056
2429114991110,1cyclictest0-21swapper/600:32:206
2429114991110,1cyclictest0-21swapper/600:07:446
242911499110,3cyclictest2981998-21cpuspeed_turbos23:20:106
242911499110,10cyclictest2521336-21irqcore19:55:146
242910899115,5cyclictest0-21swapper/422:30:144
242910899115,5cyclictest0-21swapper/420:20:154
242910899114,2cyclictest2522936-21tr19:55:154
242910899113,4cyclictest2698857-21switchtime21:20:284
242910899113,3cyclictest2840682-21cut22:20:174
242910899112,4cyclictest3008230-21cut23:30:184
242910899112,4cyclictest2530512-21grep20:00:134
242910899112,4cyclictest2462320-21expr19:25:104
2429108991110,1cyclictest0-21swapper/421:36:334
242910899110,10cyclictest3043270-21tune2fs23:45:114
242910899110,10cyclictest3043270-21tune2fs23:45:114
242911499109,1cyclictest0-21swapper/619:23:476
242911499108,2cyclictest86-21ksoftirqd/622:45:126
242911499108,2cyclictest86-21ksoftirqd/622:45:126
242911499106,3cyclictest2945911-21fschecks_count23:05:136
242911499102,3cyclictest2738680-21grep21:40:116
242911499100,9cyclictest2573264-21kthreadcore20:20:176
242911499100,9cyclictest2445519-21kthreadcore19:15:166
242911499100,3cyclictest2499587-21ntpq19:40:236
242910899104,4cyclictest2969696-21munin-node23:15:084
242910899104,2cyclictest2638298-21grep20:55:164
242910899104,1cyclictest0-21swapper/420:45:134
242910899103,3cyclictest3018716-21cat23:35:114
242910899102,3cyclictest2738774-21cpuspeed_turbos21:40:124
242910899102,3cyclictest2629222-21grep20:50:174
242910899101,4cyclictest2491672-21cat19:40:114
242910899100,4cyclictest2776009-21gltestperf21:55:124
242910899100,4cyclictest2608044-21fschecks_count20:40:124
242910899100,4cyclictest2608044-21fschecks_count20:40:124
242910899100,4cyclictest2598403-21tune2fs20:35:134
242910899100,4cyclictest2598403-21tune2fs20:35:134
242910899100,4cyclictest2588232-21cpuspeed_turbos20:30:114
242910899100,4cyclictest2502719-21cut19:45:154
242910899100,4cyclictest2483290-21cut19:35:164
242910899100,4cyclictest2472604-21hwlatdetect19:30:134
242910899100,4cyclictest2454655-21cut19:20:154
242910899100,0cyclictest0-21swapper/420:15:024
24291149991,7cyclictest0-21swapper/623:00:166
24291149990,8cyclictest2430476-21irqcore19:10:166
24291149990,4cyclictest31649562df00:35:126
24291149990,2cyclictest2531395-21cat20:00:166
24291149990,0cyclictest0-21swapper/619:49:046
24291149983,4cyclictest2637461-21sed20:55:156
24291149980,7cyclictest0-21swapper/620:25:166
24291149980,1cyclictest0-21swapper/622:00:176
24291149980,1cyclictest0-21swapper/620:14:586
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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