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2026-04-09 - 06:08
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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 all highest latencies:
System rack0slot2.osadl.org (updated Thu Apr 09, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290166021070,1sleep50-21swapper/522:20:555
26597612970,1sleep72659763-21cut20:32:307
28063002930,0sleep60-21swapper/621:42:096
247618426251,8sleep40-21swapper/418:59:094
2476691995956,2cyclictest2815759-21kworker/u16:0+flush-8:022:02:244
2476700995654,2cyclictest2528120-21kworker/u16:1+flush-8:019:37:356
2476691995351,2cyclictest2815759-21kworker/u16:0+events_unbound22:17:424
2476691995250,2cyclictest2643051-21kworker/u16:4+events_unbound20:32:354
2476691995149,2cyclictest3072353-21kworker/u16:2+flush-8:023:47:344
2476691995149,2cyclictest3033372-21kworker/u16:1+events_unbound00:02:344
2476691995149,2cyclictest2466919-21kworker/u16:1+flush-8:019:07:354
2476702994944,4cyclictest3203364-21latency_hist00:27:097
2476694994946,2cyclictest2576149-21kworker/u16:0+flush-8:021:27:235
2476691994946,2cyclictest3040342-21kworker/u16:5+events_unbound23:27:244
2476691994946,2cyclictest2914415-21kworker/u16:3+flush-8:022:57:244
2476691994846,2cyclictest3033372-21kworker/u16:1+events_unbound00:12:404
2476691994846,2cyclictest3033372-21kworker/u16:1+events_unbound00:12:404
2476691994845,2cyclictest2960398-21kworker/u16:1+events_unbound22:47:434
2476694994745,2cyclictest2914415-21kworker/u16:3+events_unbound00:07:395
2476691994745,2cyclictest2839745-21kworker/u16:2+events_unbound22:07:244
2476691994744,2cyclictest2643051-21kworker/u16:4+events_unbound20:27:244
2476694994644,2cyclictest2815759-21kworker/u16:0+flush-8:022:22:265
2476691994644,2cyclictest2962684-21kworker/u16:0+flush-8:022:53:264
2476691994644,2cyclictest2888775-21kworker/u16:2+events_unbound22:42:374
247580224610,31sleep70-21swapper/718:57:447
29189332450,0sleep60-21swapper/622:27:296
2476691994543,2cyclictest3124884-21kworker/u16:0+events_unbound00:07:354
2476691994543,2cyclictest3033372-21kworker/u16:1+flush-8:023:57:384
2476691994442,2cyclictest2914415-21kworker/u16:3+events_unbound23:20:024
2476691994441,2cyclictest2576149-21kworker/u16:0+events_unbound21:07:244
2476691994341,2cyclictest2815759-21kworker/u16:0+events_unbound21:49:514
2476691994340,2cyclictest3124884-21kworker/u16:0+events_unbound00:22:234
2476702994241,0cyclictest0-21swapper/723:37:347
2476702994236,5cyclictest2681189-21latency_hist20:47:097
2476691994240,2cyclictest2914415-21kworker/u16:3+events_unbound23:43:354
2476691994240,2cyclictest2662126-21kworker/u16:1+events_unbound21:45:524
2476691994239,2cyclictest2576149-21kworker/u16:0+events_unbound20:57:224
2476691994139,2cyclictest3033372-21kworker/u16:1+events_unbound00:17:314
2476691994139,2cyclictest2576149-21kworker/u16:0+events_unbound21:37:074
2476691994139,2cyclictest2576149-21kworker/u16:0+events_unbound21:37:074
2476691994138,2cyclictest2914415-21kworker/u16:3+events_unbound00:27:184
2476691994038,2cyclictest3072353-21kworker/u16:2+events_unbound23:34:594
2476691994038,2cyclictest3072353-21kworker/u16:2+events_unbound23:34:594
2476691994038,2cyclictest3010206-21kworker/u16:2+events_unbound23:15:294
2476691994038,2cyclictest2710001-21kworker/u16:2+events_unbound21:13:304
2476691994038,2cyclictest2662126-21kworker/u16:1+events_unbound21:37:424
2476691994038,2cyclictest2662126-21kworker/u16:1+events_unbound21:18:444
2476691994038,2cyclictest2576149-21kworker/u16:0+events_unbound21:32:064
2476691994038,2cyclictest2576149-21kworker/u16:0+events_unbound21:05:154
2476691994037,2cyclictest2576149-21kworker/u16:0+events_unbound20:07:234
247639724030,7sleep50-21swapper/519:02:075
2476700993936,2cyclictest2576149-21kworker/u16:0+flush-8:020:07:346
2476694993936,2cyclictest2914510-21kworker/u16:4+flush-8:022:37:315
2476691993937,2cyclictest2914415-21kworker/u16:3+events_unbound22:37:364
247637623929,7sleep60-21swapper/619:01:526
2476702993837,0cyclictest0-21swapper/723:08:117
2476702993837,0cyclictest0-21swapper/722:05:447
2476702993836,1cyclictest0-21swapper/723:56:527
2476702993833,4cyclictest3070976-21latency_hist23:32:087
2476691993836,2cyclictest3040342-21kworker/u16:5+events_unbound23:23:144
2476691993836,2cyclictest2875153-21kworker/u16:3+events_unbound22:14:074
2476691993836,2cyclictest2802380-21kworker/u16:4+events_unbound21:57:384
2476694993734,2cyclictest2662126-21kworker/u16:1+events_unbound22:12:235
2476694993733,3cyclictest2576149-21kworker/u16:0+flush-8:020:07:375
2476702993635,0cyclictest0-21swapper/720:47:337
2476691993634,2cyclictest2914415-21kworker/u16:3+events_unbound23:54:104
2476702993534,0cyclictest0-21swapper/722:15:547
2476702993534,0cyclictest0-21swapper/700:02:487
2476702993533,1cyclictest0-21swapper/723:36:567
2476702993533,1cyclictest0-21swapper/723:36:567
247670299350,34cyclictest3119472-21date23:52:097
2476694993533,2cyclictest3040342-21kworker/u16:5+events_unbound23:42:235
2476694993533,2cyclictest3033372-21kworker/u16:1+flush-8:023:53:095
2476694993533,2cyclictest2710001-21kworker/u16:2+events_unbound21:17:245
2476694993533,2cyclictest2643051-21kworker/u16:4+flush-8:020:52:045
2476691993533,2cyclictest2914415-21kworker/u16:3+events_unbound22:35:274
2476691993533,2cyclictest2802380-21kworker/u16:4+events_unbound21:56:274
2476691993533,2cyclictest2662126-21kworker/u16:1+events_unbound22:26:234
2476691993533,2cyclictest2662126-21kworker/u16:1+events_unbound21:26:354
2476691993532,2cyclictest2888775-21kworker/u16:2+events_unbound22:27:104
2476702993433,0cyclictest0-21swapper/722:51:137
2476702993433,0cyclictest0-21swapper/722:09:047
2476694993432,2cyclictest2576149-21kworker/u16:0+events_unbound21:02:395
2476691993432,2cyclictest3072353-21kworker/u16:2+events_unbound23:38:584
2476691993432,2cyclictest2962684-21kworker/u16:0+events_unbound23:04:224
2476702993332,1cyclictest2709878-21diskmemload00:16:527
2476702993332,1cyclictest2709878-21diskmemload00:16:527
2476694993331,2cyclictest2662126-21kworker/u16:1+flush-8:020:57:405
2476694993330,3cyclictest2576149-21kworker/u16:0+flush-8:021:37:095
2476694993330,3cyclictest2576149-21kworker/u16:0+flush-8:021:37:095
2476702993232,0cyclictest0-21swapper/722:35:257
2476694993230,2cyclictest2576149-21kworker/u16:0+events_unbound20:02:245
2476691993230,2cyclictest2565446-21kworker/u16:2+events_unbound19:49:084
2476702993131,0cyclictest0-21swapper/723:46:177
2476702993129,1cyclictest0-21swapper/721:41:487
2476694993129,2cyclictest3124884-21kworker/u16:0+events_unbound23:57:105
2476691993129,2cyclictest2585685-21kworker/u16:1+events_unbound20:22:394
2476691993129,2cyclictest2438571-21kworker/u16:5+events_unbound19:17:324
2476691993129,2cyclictest2428443-21kworker/u16:3+flush-8:019:07:104
2476702993029,0cyclictest0-21swapper/723:18:017
2476702993029,0cyclictest0-21swapper/700:09:447
247670299300,29cyclictest3213156-21ssh00:27:557
247670299300,28cyclictest34590-21sendmail19:25:047
2476694993028,2cyclictest3072353-21kworker/u16:2+flush-8:023:47:255
2476691993027,2cyclictest2438571-21kworker/u16:5+flush-8:019:42:364
2476702992929,0cyclictest0-21swapper/722:24:527
2476702992928,0cyclictest0-21swapper/721:02:537
2476694992927,2cyclictest3034920-21kworker/u16:4+flush-8:023:17:385
2476694992927,2cyclictest2662126-21kworker/u16:1+flush-8:021:52:255
2476694992826,2cyclictest2960398-21kworker/u16:1+flush-8:023:07:245
2476694992826,2cyclictest2914415-21kworker/u16:3+events_unbound22:42:235
2476694992826,2cyclictest2662126-21kworker/u16:1+flush-8:021:42:315
2476694992826,2cyclictest2662126-21kworker/u16:1+events_unbound21:47:265
2476694992826,2cyclictest2565446-21kworker/u16:2+flush-8:019:57:265
2476691992826,2cyclictest2960398-21kworker/u16:1+flush-8:023:08:094
26431762270,1chrt2643178-21date20:27:097
2476702992727,0cyclictest0-21swapper/700:18:487
2476702992726,0cyclictest0-21swapper/720:16:517
2476702992726,0cyclictest0-21swapper/720:16:517
2476694992725,2cyclictest2914415-21kworker/u16:3+events_unbound23:22:385
2476691992724,3cyclictest2576149-21kworker/u16:0+flush-8:020:42:304
2476702992623,2cyclictest2995607-21ntpq22:57:347
2476694992624,2cyclictest3072353-21kworker/u16:2+events_unbound23:32:335
2476694992624,2cyclictest3072353-21kworker/u16:2+events_unbound23:32:335
2476694992624,2cyclictest2962684-21kworker/u16:0+flush-8:022:47:305
2476694992624,2cyclictest2802380-21kworker/u16:4+events_unbound21:57:245
2476691992624,2cyclictest2585685-21kworker/u16:1+events_unbound19:59:084
2476691992623,2cyclictest2528120-21kworker/u16:1+events_unbound19:37:214
2476702992524,0cyclictest0-21swapper/719:35:147
2476702992524,0cyclictest0-21swapper/719:21:397
2476700992522,2cyclictest2888775-21kworker/u16:2+flush-8:022:27:096
2476694992523,2cyclictest2438571-21kworker/u16:5+events_unbound19:32:355
2476702992424,0cyclictest0-21swapper/723:23:497
2476702992423,0cyclictest0-21swapper/720:03:127
2476702992423,0cyclictest0-21swapper/719:57:217
2476702992423,0cyclictest0-21swapper/719:28:317
2476694992422,2cyclictest2962684-21kworker/u16:0+events_unbound23:12:115
2476694992422,2cyclictest2960398-21kworker/u16:1+events_unbound22:57:105
2476694992422,2cyclictest2839745-21kworker/u16:2+events_unbound22:07:085
2476691992421,2cyclictest2576149-21kworker/u16:0+events_unbound20:52:214
2476702992322,0cyclictest0-21swapper/720:30:597
2476702992322,0cyclictest0-21swapper/720:10:327
2476702992322,0cyclictest0-21swapper/719:42:507
2476702992322,0cyclictest0-21swapper/719:41:037
2476702992318,4cyclictest2575942-21latency_hist19:52:107
2476694992321,2cyclictest3179406-21kworker/u16:4+flush-8:000:22:395
2476694992321,2cyclictest2914415-21kworker/u16:3+flush-8:023:28:075
2476694992321,2cyclictest2633556-21kworker/u16:3+events_unbound20:32:275
2476694992321,2cyclictest2528120-21kworker/u16:1+flush-8:019:37:375
2476691992321,2cyclictest2576149-21kworker/u16:0+flush-8:019:52:324
2476702992221,0cyclictest0-21swapper/720:41:017
2476700992218,3cyclictest2565446-21kworker/u16:2+flush-8:020:17:346
2476694992220,2cyclictest2438571-21kworker/u16:5+events_unbound19:52:355
2476702992121,0cyclictest0-21swapper/719:09:387
2476702992115,4cyclictest3027478-21grep23:12:297
247670299210,19cyclictest3004271-21tr23:02:297
2476691992119,2cyclictest2438571-21kworker/u16:5+events_unbound19:22:264
2476691992118,2cyclictest2428443-21kworker/u16:3+events_unbound19:12:284
2476702992020,0cyclictest0-21swapper/722:43:197
2476702992020,0cyclictest0-21swapper/719:02:457
2476702992019,0cyclictest0-21swapper/720:55:477
2476702992019,0cyclictest0-21swapper/720:19:267
2476694992018,2cyclictest2914510-21kworker/u16:4+flush-8:022:32:435
2476694992018,2cyclictest2914415-21kworker/u16:3+flush-8:022:57:035
2476694992018,2cyclictest2914415-21kworker/u16:3+flush-8:000:27:385
2476694992018,2cyclictest2914415-21kworker/u16:3+events_unbound23:38:465
2476694992018,2cyclictest2815759-21kworker/u16:0+events_unbound22:11:075
2476694992018,2cyclictest2727453-21kworker/u16:3+events_unbound21:12:315
2476691992018,2cyclictest2585685-21kworker/u16:1+events_unbound20:20:204
2476691992018,2cyclictest2438571-21kworker/u16:5+events_unbound19:33:244
2476702991919,0cyclictest0-21swapper/719:15:277
2476702991918,0cyclictest0-21swapper/720:59:187
2476694991917,2cyclictest2727453-21kworker/u16:3+events_unbound21:08:035
2476691991917,2cyclictest2576149-21kworker/u16:0+events_unbound20:39:594
2476691991917,2cyclictest2576149-21kworker/u16:0+events_unbound20:06:004
26165812180,0sleep60-21swapper/620:12:266
26165812180,0sleep60-21swapper/620:12:266
2476694991816,2cyclictest2888775-21kworker/u16:2+events_unbound22:27:285
2476694991816,2cyclictest2662126-21kworker/u16:1+events_unbound21:25:195
2476694991816,2cyclictest2576149-21kworker/u16:0+events_unbound21:37:125
2476694991815,3cyclictest2914415-21kworker/u16:3+events_unbound23:05:075
2476702991717,0cyclictest0-21swapper/722:31:267
2476702991713,3cyclictest1267-21snmpd22:40:597
2476694991715,2cyclictest2438571-21kworker/u16:5+events_unbound19:42:355
2476691991714,2cyclictest2576149-21kworker/u16:0+events_unbound20:12:104
2476691991714,2cyclictest2576149-21kworker/u16:0+events_unbound20:12:104
2476694991614,2cyclictest3033372-21kworker/u16:1+events_unbound00:18:185
2476694991614,2cyclictest2565446-21kworker/u16:2+events_unbound20:22:235
2476691991614,2cyclictest2528120-21kworker/u16:1+events_unbound19:29:204
2476702991514,0cyclictest0-21swapper/719:56:027
2476694991513,2cyclictest2565446-21kworker/u16:2+flush-8:020:17:095
2476694991513,2cyclictest2565446-21kworker/u16:2+flush-8:020:17:095
247670299145,8cyclictest0-21swapper/721:21:307
247670299143,10cyclictest2806965-21df_inode21:42:227
2476702991413,1cyclictest3141085-21ssh23:58:057
2476702991412,1cyclictest2890742-21/usr/sbin/munin22:17:287
2476702991411,2cyclictest0-21swapper/721:12:347
2476700991413,1cyclictest0-21swapper/623:50:136
2476700991413,1cyclictest0-21swapper/623:24:506
2476700991413,1cyclictest0-21swapper/622:49:026
2476700991413,1cyclictest0-21swapper/622:13:156
247670099140,1cyclictest0-21swapper/621:34:006
247670099140,1cyclictest0-21swapper/621:34:006
247670099140,1cyclictest0-21swapper/600:30:536
247670099140,1cyclictest0-21swapper/600:05:496
247670099140,14cyclictest0-21swapper/623:40:266
2476694991412,2cyclictest3124884-21kworker/u16:0+flush-8:000:12:245
2476694991412,2cyclictest3124884-21kworker/u16:0+flush-8:000:12:245
2476694991412,2cyclictest3124884-21kworker/u16:0+events_unbound00:02:385
2476694991412,2cyclictest2506203-21kworker/u16:0+events_unbound19:22:245
247670299136,6cyclictest0-21swapper/722:53:587
247670299136,6cyclictest0-21swapper/721:53:327
247670299136,6cyclictest0-21swapper/721:30:517
247670299136,6cyclictest0-21swapper/721:24:217
247670299136,6cyclictest0-21swapper/721:07:277
247670299135,6cyclictest0-21swapper/721:47:167
247670299134,8cyclictest2791486-21grep21:32:417
247670299134,8cyclictest2791486-21grep21:32:417
2476700991312,1cyclictest0-21swapper/623:54:096
2476700991312,1cyclictest0-21swapper/623:00:146
2476700991312,1cyclictest0-21swapper/622:32:206
2476700991312,1cyclictest0-21swapper/621:50:426
2476700991312,1cyclictest0-21swapper/600:25:036
247670099130,1cyclictest0-21swapper/620:59:096
247670099130,13cyclictest0-21swapper/623:21:036
247670099130,13cyclictest0-21swapper/621:56:236
247670099130,13cyclictest0-21swapper/621:19:116
247670099130,0cyclictest0-21swapper/623:58:056
247670099130,0cyclictest0-21swapper/600:15:266
247670099130,0cyclictest0-21swapper/600:15:266
247670299124,7cyclictest2843407-21iostat21:57:247
2476700991211,1cyclictest0-21swapper/622:41:386
2476700991211,1cyclictest0-21swapper/622:09:286
2476700991211,1cyclictest0-21swapper/621:15:336
247670099120,11cyclictest0-21swapper/619:17:196
247669499120,1cyclictest0-21swapper/520:27:515
247669499120,12cyclictest0-21swapper/520:22:015
2476700991110,1cyclictest0-21swapper/623:32:336
2476700991110,1cyclictest0-21swapper/623:32:336
2476700991110,1cyclictest0-21swapper/619:52:566
2476700991110,1cyclictest0-21swapper/619:42:136
2476700991110,1cyclictest0-21swapper/600:09:366
247670099110,1cyclictest0-21swapper/620:37:146
247670099110,1cyclictest0-21swapper/619:31:216
247670099110,11cyclictest0-21swapper/619:50:536
247670099110,11cyclictest0-21swapper/619:26:376
247670099110,11cyclictest0-21swapper/619:03:456
247669499118,2cyclictest2506203-21kworker/u16:0+events_unbound19:17:235
2476694991110,1cyclictest0-21swapper/520:39:595
247670099109,1cyclictest0-21swapper/623:46:166
247670099109,1cyclictest0-21swapper/622:03:486
247670099109,1cyclictest0-21swapper/621:06:346
247670099109,1cyclictest0-21swapper/620:51:266
247670099109,1cyclictest0-21swapper/620:35:126
247670099109,1cyclictest0-21swapper/620:29:036
247670099109,1cyclictest0-21swapper/620:03:026
247670099109,1cyclictest0-21swapper/619:35:556
247670099109,1cyclictest0-21swapper/600:19:136
247669499109,1cyclictest0-21swapper/519:07:555
247669199108,2cyclictest2643051-21kworker/u16:4+events_unbound20:48:074
24767009998,1cyclictest0-21swapper/623:30:406
24767009998,1cyclictest0-21swapper/622:18:566
24767009998,1cyclictest0-21swapper/621:30:136
24767009998,1cyclictest0-21swapper/621:08:186
24767009998,1cyclictest0-21swapper/620:45:366
24766949998,1cyclictest0-21swapper/520:53:425
24766949997,2cyclictest2438571-21kworker/u16:5+flush-8:019:27:325
24766949994,5cyclictest0-21swapper/519:02:235
24767009977,0cyclictest0-21swapper/623:13:196
24767009976,1cyclictest0-21swapper/620:55:136
24767009974,2cyclictest28172732sleep621:45:476
24767009973,3cyclictest2488875-21cut19:07:136
24767009965,1cyclictest0-21swapper/623:07:396
24767009965,1cyclictest0-21swapper/622:56:276
24767009965,1cyclictest0-21swapper/621:58:076
24767009963,2cyclictest30102302sleep623:06:176
24766949964,2cyclictest2565446-21kworker/u16:2+flush-8:019:47:375
24766949962,1cyclictest681rcuog/420:47:055
24766949962,1cyclictest0-21swapper/519:15:455
24767009950,5cyclictest0-21swapper/621:22:356
24767009950,5cyclictest0-21swapper/620:22:116
24767009950,5cyclictest0-21swapper/619:57:186
24767009950,5cyclictest0-21swapper/619:12:316
24767009950,4cyclictest2953749-21taskset22:42:286
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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