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2025-12-19 - 02:26
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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 highest latencies:
System rack0slot2.osadl.org (updated Fri Dec 19, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
239122226050,7sleep60-21swapper/619:08:116
239130625645,8sleep50-21swapper/519:09:225
239112825319,30sleep70-21swapper/719:06:517
239104824227,10sleep40-21swapper/419:05:444
2391623993433,0cyclictest0-21swapper/721:09:497
2391623993226,5cyclictest2794498-21latency_hist22:34:337
2391618993128,2cyclictest2814382-21kworker/u16:3+flush-8:022:44:485
2391623993024,5cyclictest2414705-21latency_hist19:19:347
2391623992923,5cyclictest3037729-21latency_hist00:39:337
2391623992923,5cyclictest2472997-21latency_hist19:49:347
2391622992926,2cyclictest2774693-21kworker/u16:4+events_unbound22:37:286
2391622992826,2cyclictest2390381-21kworker/u16:4+events_unbound19:38:526
2391622992826,2cyclictest2390381-21kworker/u16:4+events_unbound19:38:526
2391622992725,2cyclictest2726593-21kworker/u16:3+events_unbound22:17:456
2391622992724,2cyclictest2534273-21kworker/u16:2+flush-8:020:24:436
2391622992724,2cyclictest2534273-21kworker/u16:2+events_unbound20:39:356
2391623992621,4cyclictest2950118-21latency_hist23:54:337
2391622992624,2cyclictest2713566-21kworker/u16:3+events_unbound21:50:026
2391622992623,2cyclictest2308207-21kworker/u16:3+events_unbound19:59:356
2391622992523,2cyclictest2814021-21kworker/u16:2+events_unbound22:54:326
2391622992523,2cyclictest2716330-21kworker/u16:5+events_unbound22:02:486
2391622992523,2cyclictest2716330-21kworker/u16:5+events_unbound22:02:486
2391622992523,2cyclictest2639015-21kworker/u16:3+events_unbound21:27:206
2391622992523,2cyclictest2610661-21kworker/u16:1+events_unbound22:42:566
2391622992523,2cyclictest2502443-21kworker/u16:4+events_unbound21:33:296
2391618992522,3cyclictest2667878-21kworker/u16:0+flush-8:022:09:485
2391623992423,0cyclictest0-21swapper/721:54:487
2391623992421,1cyclictest0-21swapper/719:49:497
2391622992422,2cyclictest2843579-21kworker/u16:2+events_unbound23:49:236
2391622992422,2cyclictest2534273-21kworker/u16:2+events_unbound21:13:206
2391618992421,2cyclictest2833720-21kworker/u16:1+flush-8:023:14:485
2391623992322,0cyclictest0-21swapper/723:26:277
2391622992321,2cyclictest2726593-21kworker/u16:3+events_unbound22:23:596
2391622992321,2cyclictest2570805-21kworker/u16:3+events_unbound20:47:246
2391622992321,2cyclictest2390381-21kworker/u16:4+events_unbound19:31:176
2391623992221,0cyclictest0-21swapper/723:34:027
2391622992220,2cyclictest2610661-21kworker/u16:1+events_unbound21:41:286
2391622992220,2cyclictest2534273-21kworker/u16:2+events_unbound20:23:006
2391622992220,2cyclictest2352923-21kworker/u16:2+events_unbound19:13:576
2391623992120,0cyclictest0-21swapper/720:26:247
2391623992120,0cyclictest0-21swapper/700:12:037
2391623992115,5cyclictest2765318-21latency_hist22:19:337
2391622992119,2cyclictest2960234-21kworker/u16:4+flush-8:000:12:476
2391622992119,2cyclictest2908396-21kworker/u16:3+events_unbound23:51:326
2391622992119,2cyclictest2726593-21kworker/u16:3+events_unbound22:24:346
2391622992119,2cyclictest2610661-21kworker/u16:1+flush-8:022:30:086
2391622992119,2cyclictest2431401-21kworker/u16:1+events_unbound19:51:566
2391622992119,2cyclictest2308207-21kworker/u16:3+events_unbound20:19:256
2391613992119,2cyclictest2814021-21kworker/u16:2+flush-8:022:54:284
2391623992019,0cyclictest0-21swapper/700:28:117
2391623992019,0cyclictest0-21swapper/700:28:117
2391623992015,4cyclictest650-21systemd-journal00:09:337
2391622992018,2cyclictest2814382-21kworker/u16:3+events_unbound23:09:316
2391622992018,2cyclictest2610661-21kworker/u16:1+flush-8:022:11:286
2391622992018,2cyclictest2610661-21kworker/u16:1+events_unbound21:49:316
2391622992018,2cyclictest2463307-21kworker/u16:0+events_unbound19:57:486
2391622992018,2cyclictest2390381-21kworker/u16:4+flush-8:019:27:486
2391618992018,2cyclictest2774693-21kworker/u16:4+events_unbound22:35:035
2391618992017,2cyclictest2774693-21kworker/u16:4+flush-8:022:29:595
2391623991918,0cyclictest0-21swapper/723:43:357
2391623991918,0cyclictest0-21swapper/720:57:087
2391623991918,0cyclictest0-21swapper/719:34:487
2391623991918,0cyclictest0-21swapper/719:34:487
2391623991918,0cyclictest0-21swapper/700:32:357
2391623991918,0cyclictest0-21swapper/700:02:327
2391622991917,2cyclictest2570618-21kworker/u16:0+events_unbound21:18:016
2391622991917,2cyclictest2570618-21kworker/u16:0+events_unbound21:05:076
2391622991917,2cyclictest2431401-21kworker/u16:1+flush-8:020:08:046
2391622991917,2cyclictest2431401-21kworker/u16:1+events_unbound20:13:416
2391622991917,2cyclictest2390381-21kworker/u16:4+flush-8:019:20:286
2391623991817,0cyclictest0-21swapper/723:56:017
2391623991817,0cyclictest0-21swapper/723:04:417
2391623991817,0cyclictest0-21swapper/723:02:037
2391623991817,0cyclictest0-21swapper/722:56:517
2391623991817,0cyclictest0-21swapper/722:23:477
2391623991817,0cyclictest0-21swapper/722:08:587
2391623991817,0cyclictest0-21swapper/720:50:207
2391623991817,0cyclictest0-21swapper/720:40:207
2391623991817,0cyclictest0-21swapper/719:29:437
239162399180,2cyclictest0-21swapper/722:09:577
239162399180,17cyclictest0-21swapper/722:44:597
2391622991816,2cyclictest2960234-21kworker/u16:4+events_unbound00:06:236
2391622991816,2cyclictest2960234-21kworker/u16:4+events_unbound00:03:486
2391622991816,2cyclictest2882147-21kworker/u16:3+events_unbound23:21:286
2391622991816,2cyclictest2862683-21kworker/u16:0+events_unbound23:28:406
2391622991816,2cyclictest2862683-21kworker/u16:0+events_unbound00:32:326
2391622991816,2cyclictest2833720-21kworker/u16:1+events_unbound23:17:046
2391622991816,2cyclictest2610661-21kworker/u16:1+events_unbound21:02:336
2391622991816,2cyclictest2534273-21kworker/u16:2+events_unbound20:57:496
2391618991816,2cyclictest2534273-21kworker/u16:2+flush-8:020:24:335
2391613991815,2cyclictest2960234-21kworker/u16:4+flush-8:000:15:054
2391623991716,0cyclictest0-21swapper/723:34:347
2391623991716,0cyclictest0-21swapper/723:16:317
2391623991716,0cyclictest0-21swapper/722:49:417
2391623991716,0cyclictest0-21swapper/721:08:567
2391623991716,0cyclictest0-21swapper/721:01:157
2391623991716,0cyclictest0-21swapper/720:47:087
239162399171,14cyclictest0-21swapper/721:29:597
2391622991715,2cyclictest2908396-21kworker/u16:3+events_unbound23:38:326
2391622991715,2cyclictest2833720-21kworker/u16:1+events_unbound22:59:196
2391622991715,2cyclictest2534273-21kworker/u16:2+events_unbound20:51:176
2391622991715,2cyclictest2463307-21kworker/u16:0+events_unbound19:45:096
2391622991715,2cyclictest2431401-21kworker/u16:1+flush-8:020:33:406
2391622991715,2cyclictest2390381-21kworker/u16:4+events_unbound19:18:006
2391622991714,2cyclictest2639015-21kworker/u16:3+events_unbound21:19:376
239161399170,16cyclictest2900923-21timerandwakeup23:25:014
2391623991615,0cyclictest0-21swapper/721:47:187
2391623991615,0cyclictest0-21swapper/721:40:287
2391623991615,0cyclictest0-21swapper/721:37:367
2391623991615,0cyclictest0-21swapper/721:25:197
2391623991615,0cyclictest0-21swapper/721:16:207
2391623991613,2cyclictest1267-21snmpd20:32:597
239162399160,1cyclictest0-21swapper/719:24:587
2391622991614,2cyclictest2862683-21kworker/u16:0+flush-8:000:25:286
2391622991614,2cyclictest2862683-21kworker/u16:0+flush-8:000:25:286
2391622991614,2cyclictest2843579-21kworker/u16:2+events_unbound23:54:536
2391622991614,2cyclictest2833720-21kworker/u16:1+events_unbound23:13:476
2391622991614,2cyclictest2667878-21kworker/u16:0+events_unbound21:58:036
2391618991614,2cyclictest2308207-21kworker/u16:3+events_unbound20:09:495
2391613991614,2cyclictest2862683-21kworker/u16:0+flush-8:023:42:234
2391623991515,0cyclictest0-21swapper/723:13:087
2391623991514,0cyclictest0-21swapper/722:24:477
2391623991514,0cyclictest0-21swapper/720:11:217
2391623991514,0cyclictest0-21swapper/719:14:177
2391623991514,0cyclictest0-21swapper/700:15:347
2391622991513,2cyclictest2862683-21kworker/u16:0+events_unbound23:41:286
2391622991513,2cyclictest2843579-21kworker/u16:2+events_unbound23:02:326
2391622991513,2cyclictest2814021-21kworker/u16:2+flush-8:022:48:196
2391622991513,2cyclictest2726593-21kworker/u16:3+events_unbound22:06:086
2391622991513,2cyclictest2667878-21kworker/u16:0+flush-8:021:38:526
2391623991410,3cyclictest2655920-21kthreadcore21:19:557
239162399140,13cyclictest0-21swapper/720:19:597
239162399140,12cyclictest1267-21snmpd21:49:587
239162399140,12cyclictest0-21swapper/719:19:557
2391622991412,2cyclictest2908396-21kworker/u16:3+flush-8:000:15:116
2391622991412,2cyclictest2390381-21kworker/u16:4+events_unbound19:43:046
2391618991413,1cyclictest0-21swapper/521:29:345
2391613991413,1cyclictest0-21swapper/420:54:474
2391613991412,2cyclictest2960234-21kworker/u16:4+flush-8:000:14:324
2391613991412,2cyclictest2431401-21kworker/u16:1+flush-8:020:24:484
2391613991412,2cyclictest2308207-21kworker/u16:3+flush-8:020:10:004
2391613991412,1cyclictest3027086-21ntpq00:29:584
239161399140,13cyclictest0-21swapper/422:19:364
2391622991311,2cyclictest3023117-21kworker/u16:1+events_unbound00:37:086
2391622991311,2cyclictest2998813-21kworker/u16:1+events_unbound00:20:356
2391622991311,2cyclictest2908396-21kworker/u16:3+events_unbound23:32:486
2391622991311,2cyclictest2502443-21kworker/u16:4+flush-8:020:35:436
2391618991312,1cyclictest0-21swapper/523:48:005
2391618991312,1cyclictest0-21swapper/522:39:535
2391618991312,1cyclictest0-21swapper/500:04:335
239161899130,13cyclictest0-21swapper/519:12:445
2391613991312,1cyclictest0-21swapper/421:11:204
2391613991312,1cyclictest0-21swapper/419:53:554
239161399130,1cyclictest0-21swapper/422:36:564
239161399130,13cyclictest0-21swapper/423:06:444
239161399130,13cyclictest0-21swapper/419:24:364
239161399130,13cyclictest0-21swapper/400:25:524
239161399130,13cyclictest0-21swapper/400:25:524
239162399129,2cyclictest1267-21snmpd22:03:197
239162399129,2cyclictest1267-21snmpd22:03:197
239162399128,3cyclictest1267-21snmpd20:16:017
239162399128,3cyclictest1267-21snmpd19:55:467
239162399124,7cyclictest0-21swapper/719:59:437
239162399122,8cyclictest3007411-21taskset00:19:557
2391623991212,0cyclictest0-21swapper/723:48:407
2391623991211,0cyclictest0-21swapper/722:40:057
239161899120,1cyclictest0-21swapper/523:33:295
239161899120,1cyclictest0-21swapper/521:41:145
239161899120,1cyclictest0-21swapper/519:51:125
239161899120,1cyclictest0-21swapper/500:21:165
239161899120,12cyclictest0-21swapper/523:10:385
239161899120,12cyclictest0-21swapper/521:25:385
239161399128,3cyclictest2902719-21cat23:29:484
2391613991211,1cyclictest0-21swapper/423:45:124
2391613991211,1cyclictest0-21swapper/423:20:554
2391613991211,1cyclictest0-21swapper/420:36:484
2391613991211,1cyclictest0-21swapper/400:21:474
2391613991211,1cyclictest0-21swapper/400:01:264
2391613991210,2cyclictest2502443-21kworker/u16:4+flush-8:021:29:494
2391613991210,2cyclictest2502443-21kworker/u16:4+events_unbound20:44:484
2391613991210,2cyclictest2308207-21kworker/u16:3+flush-8:019:39:494
239161399120,1cyclictest0-21swapper/422:17:424
239161399120,1cyclictest0-21swapper/420:01:204
239161399120,1cyclictest0-21swapper/419:16:244
239161399120,12cyclictest0-21swapper/422:27:194
239161399120,12cyclictest0-21swapper/420:07:014
239162399117,3cyclictest1267-21snmpd22:34:487
239162399115,5cyclictest6184-21gvfs-afc-volume20:34:577
239162399115,5cyclictest6045-21gmain23:19:497
239162399110,4cyclictest1267-21snmpd19:39:467
239161899119,2cyclictest2501956-21kworker/u16:2+events_unbound20:04:345
239161899117,3cyclictest2737170-21cat22:04:495
2391618991110,1cyclictest0-21swapper/523:52:065
2391618991110,1cyclictest0-21swapper/522:52:025
2391618991110,1cyclictest0-21swapper/521:48:585
2391618991110,1cyclictest0-21swapper/521:21:425
2391618991110,1cyclictest0-21swapper/521:15:525
2391618991110,1cyclictest0-21swapper/521:00:435
2391618991110,1cyclictest0-21swapper/520:40:235
2391618991110,1cyclictest0-21swapper/519:49:095
2391618991110,1cyclictest0-21swapper/500:38:085
2391618991110,1cyclictest0-21swapper/500:10:425
239161899110,11cyclictest0-21swapper/523:37:355
239161899110,11cyclictest0-21swapper/523:00:145
239161899110,11cyclictest0-21swapper/521:56:415
239161899110,11cyclictest0-21swapper/521:50:515
239161899110,11cyclictest0-21swapper/521:06:245
239161899110,11cyclictest0-21swapper/519:35:545
239161899110,11cyclictest0-21swapper/519:35:545
239161899110,11cyclictest0-21swapper/519:20:565
239161899110,11cyclictest0-21swapper/500:17:005
239161399119,2cyclictest2308207-21kworker/u16:3+events_unbound19:44:484
239161399119,2cyclictest0-21swapper/421:52:574
2391613991110,1cyclictest0-21swapper/423:53:244
2391613991110,1cyclictest0-21swapper/422:58:424
2391613991110,1cyclictest0-21swapper/422:11:524
2391613991110,1cyclictest0-21swapper/422:02:254
2391613991110,1cyclictest0-21swapper/422:02:254
2391613991110,1cyclictest0-21swapper/420:51:094
2391613991110,1cyclictest0-21swapper/420:42:104
2391613991110,1cyclictest0-21swapper/420:20:254
2391613991110,1cyclictest0-21swapper/420:18:314
2391613991110,1cyclictest0-21swapper/419:37:134
2391613991110,1cyclictest0-21swapper/419:37:134
239161399110,11cyclictest0-21swapper/423:37:104
239161399110,11cyclictest0-21swapper/421:45:234
239161399110,11cyclictest0-21swapper/419:22:334
239161399110,11cyclictest0-21swapper/400:38:204
239162399100,9cyclictest0-21swapper/720:04:507
239161899109,1cyclictest0-21swapper/523:56:125
239161899109,1cyclictest0-21swapper/523:08:355
239161899109,1cyclictest0-21swapper/522:26:015
239161899109,1cyclictest0-21swapper/521:39:215
239161899109,1cyclictest0-21swapper/521:12:055
239161899109,1cyclictest0-21swapper/520:31:245
239161899109,1cyclictest0-21swapper/520:06:205
239161899109,1cyclictest0-21swapper/519:18:535
239161899108,2cyclictest2667878-21kworker/u16:0+events_unbound22:19:485
239161899100,9cyclictest0-21swapper/520:14:505
239161399109,1cyclictest0-21swapper/422:40:434
239161399109,1cyclictest0-21swapper/422:08:054
23916189998,1cyclictest0-21swapper/523:41:415
23916189998,1cyclictest0-21swapper/523:23:055
23916189997,2cyclictest2726593-21kworker/u16:3+flush-8:022:19:285
23916139998,1cyclictest0-21swapper/421:58:384
23916139994,4cyclictest2652485-21cat21:19:534
23916139994,4cyclictest2559723-21ntp_kernel_pll_20:30:004
23916139993,5cyclictest2658987-21expr21:24:474
23916139991,5cyclictest2869324-21grep23:09:554
23916189986,1cyclictest2591015-21fschecks_time20:49:505
23916189985,2cyclictest2543204-21kthreadcore20:24:505
23916189984,3cyclictest3020888-21kthreadcore00:29:515
23916189983,4cyclictest3009646-21tune2fs00:24:465
23916189983,4cyclictest3009646-21tune2fs00:24:465
23916189983,4cyclictest2566517-21cut20:34:545
23916189981,6cyclictest0-21swapper/519:54:475
23916139987,1cyclictest0-21swapper/423:02:384
23916139987,1cyclictest0-21swapper/421:41:364
23916139987,1cyclictest0-21swapper/419:12:184
23916139986,2cyclictest2308207-21kworker/u16:3+events_unbound19:29:474
23916139986,1cyclictest0-21swapper/400:04:494
23916139983,4cyclictest5998-21evolution-alarm23:59:334
23916139983,4cyclictest2791117-21kthreadcore22:29:554
23916139983,4cyclictest2680566-21cut21:34:524
23916139983,4cyclictest2624565-21cut21:04:544
23916139980,4cyclictest2880673-21kthreadcore23:14:544
23916189975,1cyclictest0-21swapper/520:44:455
23916189973,3cyclictest2971212-21irqstats00:04:545
23916189973,3cyclictest2834556-21tune2fs22:54:485
23916189973,3cyclictest2606767-21cut20:54:545
23916189973,3cyclictest2460144-21grep19:39:535
23916189973,3cyclictest2430331-21cut19:24:545
23916189972,4cyclictest2726895-21cstates21:59:455
23916189972,4cyclictest2726895-21cstates21:59:455
23916189972,4cyclictest2436056-21tr19:29:495
23916189970,6cyclictest0-21swapper/523:24:455
23916139975,1cyclictest0-21swapper/422:44:464
23916139975,1cyclictest0-21swapper/419:54:514
23916139974,2cyclictest0-21swapper/421:14:454
23916139973,3cyclictest2611051-21kthreadcore20:59:504
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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