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2025-12-23 - 06:58
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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 Tue Dec 23, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
285390425343,7sleep60-21swapper/619:08:506
285381225319,30sleep70-21swapper/719:07:317
285365524635,7sleep50-21swapper/519:05:205
285390224333,7sleep40-21swapper/419:08:484
2854229994038,2cyclictest2825414-21kworker/u16:0+flush-8:019:14:186
2854234993933,5cyclictest3032252-21latency_hist20:39:187
2854229993937,2cyclictest2993582-21kworker/u16:0+flush-8:020:54:186
2854225993836,2cyclictest2974325-21kworker/u16:1+flush-8:020:14:175
2854219993533,2cyclictest3226225-21kworker/u16:0+events_unbound22:57:414
2854219993431,2cyclictest3226225-21kworker/u16:0+flush-8:022:24:204
2854225993230,2cyclictest3420010-21kworker/u16:3+flush-8:000:14:125
2854229993129,2cyclictest3380996-21kworker/u16:2+flush-8:000:24:176
2854229993129,2cyclictest3380996-21kworker/u16:2+flush-8:000:24:176
2854229993129,2cyclictest3105040-21kworker/u16:1+flush-8:023:09:176
2854229993129,2cyclictest2974325-21kworker/u16:1+events_unbound20:34:196
2854229993028,2cyclictest2974325-21kworker/u16:1+events_unbound20:31:296
2854229993028,2cyclictest2867926-21kworker/u16:4+flush-8:019:21:286
2854219993028,2cyclictest2935784-21kworker/u16:2+events_unbound19:58:294
2854229992927,2cyclictest3380996-21kworker/u16:2+events_unbound23:43:296
2854229992927,2cyclictest2935784-21kworker/u16:2+events_unbound20:02:296
2854229992927,2cyclictest2867926-21kworker/u16:4+events_unbound19:14:486
2854219992927,2cyclictest3478956-21kworker/u16:1+flush-8:000:34:124
2854219992927,2cyclictest3419830-21kworker/u16:0+flush-8:000:09:314
2854219992927,2cyclictest2901249-21kworker/u16:1+flush-8:019:32:284
2854234992827,0cyclictest0-21swapper/719:14:197
2854229992826,2cyclictest3380996-21kworker/u16:2+flush-8:023:55:276
2854229992826,2cyclictest3313235-21kworker/u16:4+flush-8:023:48:286
2854229992826,2cyclictest2887346-21kworker/u16:0+events_unbound19:52:296
2854229992826,2cyclictest2887346-21kworker/u16:0+events_unbound19:34:196
2854229992825,2cyclictest3420010-21kworker/u16:3+flush-8:000:19:166
2854229992825,2cyclictest3420010-21kworker/u16:3+flush-8:000:19:166
2854225992825,3cyclictest3236092-21kworker/u16:2+flush-8:022:24:435
2854219992826,2cyclictest3419830-21kworker/u16:0+flush-8:000:23:274
2854219992826,2cyclictest3419830-21kworker/u16:0+flush-8:000:23:274
2854219992826,2cyclictest3226225-21kworker/u16:0+flush-8:023:06:294
2854229992725,2cyclictest3226225-21kworker/u16:0+events_unbound22:50:416
2854229992725,2cyclictest3196461-21kworker/u16:6+flush-8:022:02:296
2854229992725,2cyclictest3105040-21kworker/u16:1+flush-8:022:04:476
2854229992725,2cyclictest3080636-21kworker/u16:3+events_unbound21:34:486
2854229992725,2cyclictest3080636-21kworker/u16:3+events_unbound21:10:286
2854229992724,2cyclictest2964373-21kworker/u16:4+flush-8:020:24:276
2854229992724,2cyclictest2964373-21kworker/u16:4+flush-8:020:24:276
2854219992725,2cyclictest3196461-21kworker/u16:6+events_unbound22:03:284
2854229992624,2cyclictest3313235-21kworker/u16:4+events_unbound23:31:286
2854225992624,2cyclictest3022975-21kworker/u16:2+flush-8:021:59:325
2854225992624,2cyclictest2825414-21kworker/u16:0+flush-8:019:14:415
2854225992623,3cyclictest2935784-21kworker/u16:2+flush-8:019:59:355
2854219992624,2cyclictest2993582-21kworker/u16:0+events_unbound21:27:284
2854219992624,2cyclictest2867926-21kworker/u16:4+events_unbound19:43:284
2854234992524,0cyclictest0-21swapper/722:35:317
2854234992524,0cyclictest0-21swapper/722:04:407
2854229992523,2cyclictest3420010-21kworker/u16:3+events_unbound23:59:406
2854229992523,2cyclictest3226225-21kworker/u16:0+events_unbound23:35:286
2854229992523,2cyclictest3022975-21kworker/u16:2+flush-8:021:29:286
2854219992523,2cyclictest2993582-21kworker/u16:0+events_unbound20:28:294
2854219992523,2cyclictest2993582-21kworker/u16:0+events_unbound20:28:294
2854219992523,2cyclictest2935784-21kworker/u16:2+events_unbound19:50:284
2854234992422,1cyclictest0-21swapper/700:24:327
2854229992422,2cyclictest3362003-21kworker/u16:1+events_unbound00:05:566
2854229992422,2cyclictest3105040-21kworker/u16:1+flush-8:022:47:276
2854229992422,2cyclictest3105040-21kworker/u16:1+flush-8:022:47:276
2854229992422,2cyclictest3022975-21kworker/u16:2+flush-8:021:43:536
2854229992421,2cyclictest2867926-21kworker/u16:4+flush-8:019:24:286
2854219992422,2cyclictest3274850-21kworker/u16:3+events_unbound22:52:274
2854219992422,2cyclictest3022975-21kworker/u16:2+flush-8:021:40:284
2854219992422,2cyclictest2993582-21kworker/u16:0+flush-8:021:09:364
2854219992422,2cyclictest2964373-21kworker/u16:4+events_unbound20:41:274
2854234992322,0cyclictest0-21swapper/721:55:357
2854234992322,0cyclictest0-21swapper/719:10:367
2854229992321,2cyclictest3419830-21kworker/u16:0+events_unbound00:32:286
2854229992321,2cyclictest3080636-21kworker/u16:3+flush-8:021:22:286
2854229992320,2cyclictest3226225-21kworker/u16:0+events_unbound22:19:296
2854225992321,2cyclictest2901249-21kworker/u16:1+flush-8:019:29:455
2854219992321,2cyclictest2964373-21kworker/u16:4+flush-8:020:44:414
2854219992321,2cyclictest2837207-21kworker/u16:3+events_unbound19:15:294
2854234992220,1cyclictest0-21swapper/719:49:377
2854234992216,5cyclictest3400263-21latency_hist23:49:177
2854229992220,2cyclictest3080636-21kworker/u16:3+flush-8:021:27:206
2854229992219,2cyclictest3196461-21kworker/u16:6+flush-8:022:14:276
2854225992218,3cyclictest3294742-21diskstats22:54:325
2854219992220,2cyclictest3022975-21kworker/u16:2+events_unbound20:51:274
2854219992220,2cyclictest2867926-21kworker/u16:4+events_unbound19:45:294
29530032210,1chrt2953004-21kthreadcore19:54:417
2854229992119,2cyclictest3293605-21kworker/u16:2+flush-8:023:00:286
2854225992119,2cyclictest3313235-21kworker/u16:4+flush-8:000:04:175
2854225992119,2cyclictest3274850-21kworker/u16:3+events_unbound23:04:325
2854219992119,2cyclictest3419830-21kworker/u16:0+events_unbound00:35:284
2854219992119,2cyclictest3419830-21kworker/u16:0+events_unbound00:06:274
2854219992119,2cyclictest3167874-21kworker/u16:0+flush-8:021:49:514
2854219992119,2cyclictest3080636-21kworker/u16:3+events_unbound21:23:534
2854219992118,2cyclictest3380996-21kworker/u16:2+flush-8:023:54:484
2854219992118,2cyclictest3105040-21kworker/u16:1+events_unbound22:59:274
2854229992018,2cyclictest3080636-21kworker/u16:3+flush-8:021:44:176
2854229992018,2cyclictest2867926-21kworker/u16:4+events_unbound19:46:406
2854229992017,2cyclictest2901249-21kworker/u16:1+events_unbound19:39:206
2854225992018,2cyclictest3362003-21kworker/u16:1+events_unbound23:29:335
2854225992018,2cyclictest2887346-21kworker/u16:0+events_unbound20:04:315
2854219992018,2cyclictest3080636-21kworker/u16:3+flush-8:021:15:334
2854219992018,2cyclictest2146574-21kworker/u16:2+events_unbound19:26:284
2854234991918,0cyclictest0-21swapper/723:32:527
2854234991918,0cyclictest0-21swapper/721:11:447
2854234991917,1cyclictest0-21swapper/719:24:447
2854229991917,2cyclictest3105040-21kworker/u16:1+flush-8:022:13:046
2854229991917,2cyclictest3105040-21kworker/u16:1+events_unbound23:16:276
2854229991917,2cyclictest3022975-21kworker/u16:2+events_unbound20:57:116
2854229991917,2cyclictest2993582-21kworker/u16:0+events_unbound20:48:336
2854229991917,2cyclictest2964373-21kworker/u16:4+flush-8:020:18:286
2854219991917,2cyclictest3226225-21kworker/u16:0+flush-8:022:34:454
2854219991917,2cyclictest3196461-21kworker/u16:6+events_unbound22:04:204
2854219991916,2cyclictest3022975-21kworker/u16:2+flush-8:021:44:334
2854234991818,0cyclictest0-21swapper/723:23:397
2854234991817,0cyclictest0-21swapper/720:00:117
2854229991816,2cyclictest3419830-21kworker/u16:0+events_unbound00:38:106
2854229991816,2cyclictest3380996-21kworker/u16:2+flush-8:023:51:326
2854229991815,2cyclictest2887346-21kworker/u16:0+events_unbound20:04:276
2854225991816,2cyclictest3362003-21kworker/u16:1+events_unbound23:44:455
2854225991816,2cyclictest3226225-21kworker/u16:0+flush-8:022:49:475
2854225991815,2cyclictest2964373-21kworker/u16:4+flush-8:020:19:435
2854219991816,2cyclictest3362003-21kworker/u16:1+flush-8:023:34:334
2854219991816,2cyclictest3274850-21kworker/u16:3+events_unbound22:44:534
2854219991816,2cyclictest3274850-21kworker/u16:3+events_unbound22:44:534
2854219991816,2cyclictest3105040-21kworker/u16:1+flush-8:022:09:364
2854219991816,2cyclictest2974325-21kworker/u16:1+flush-8:020:09:514
2854219991816,2cyclictest2974325-21kworker/u16:1+events_unbound20:38:294
2854219991816,2cyclictest2974325-21kworker/u16:1+events_unbound20:33:284
2854219991815,2cyclictest3380996-21kworker/u16:2+events_unbound23:39:294
2854234991716,0cyclictest0-21swapper/723:17:197
2854234991716,0cyclictest0-21swapper/722:44:037
2854234991716,0cyclictest0-21swapper/721:50:517
2854234991715,1cyclictest0-21swapper/719:29:367
2854234991712,4cyclictest3293831-21latency_hist22:54:177
2854229991715,2cyclictest2901249-21kworker/u16:1+flush-8:019:29:536
2854219991715,2cyclictest3362003-21kworker/u16:1+events_unbound23:50:294
2854219991715,2cyclictest2867926-21kworker/u16:4+flush-8:019:19:204
2854219991715,2cyclictest2146574-21kworker/u16:2+events_unbound19:34:504
2854219991715,2cyclictest2138355-21kworker/u16:1+flush-8:019:10:064
2854234991615,0cyclictest0-21swapper/723:40:437
2854234991615,0cyclictest0-21swapper/723:38:387
2854234991615,0cyclictest0-21swapper/723:08:427
2854234991615,0cyclictest0-21swapper/721:45:157
2854234991615,0cyclictest0-21swapper/720:27:037
2854234991615,0cyclictest0-21swapper/720:27:037
2854234991615,0cyclictest0-21swapper/700:20:027
2854234991615,0cyclictest0-21swapper/700:20:027
2854229991614,2cyclictest3362003-21kworker/u16:1+events_unbound00:11:286
2854229991614,2cyclictest3226225-21kworker/u16:0+flush-8:022:55:446
2854229991614,2cyclictest3226225-21kworker/u16:0+events_unbound23:10:476
2854229991614,2cyclictest3177343-21kworker/u16:5+flush-8:021:59:096
2854225991614,2cyclictest3362003-21kworker/u16:1+flush-8:023:34:325
2854219991614,2cyclictest3352152-21kworker/u16:2+flush-8:023:27:594
2854219991614,2cyclictest3105040-21kworker/u16:1+flush-8:023:19:334
2854219991614,2cyclictest2887346-21kworker/u16:0+flush-8:020:00:174
2854234991515,0cyclictest0-21swapper/719:43:397
2854234991515,0cyclictest0-21swapper/700:04:327
2854234991514,0cyclictest0-21swapper/723:27:237
2854234991514,0cyclictest0-21swapper/722:14:207
2854234991514,0cyclictest0-21swapper/721:30:387
2854234991514,0cyclictest0-21swapper/721:02:317
2854234991514,0cyclictest0-21swapper/720:50:467
2854234991514,0cyclictest0-21swapper/719:47:507
2854229991513,2cyclictest3313235-21kworker/u16:4+flush-8:023:22:316
2854229991513,2cyclictest3236092-21kworker/u16:2+flush-8:022:29:176
2854229991513,2cyclictest3226225-21kworker/u16:0+flush-8:022:33:126
2854229991513,2cyclictest2993582-21kworker/u16:0+flush-8:021:08:336
2854229991513,2cyclictest2993582-21kworker/u16:0+events_unbound21:02:336
2854229991512,2cyclictest2887346-21kworker/u16:0+flush-8:019:54:286
2854225991513,2cyclictest3380996-21kworker/u16:2+events_unbound00:24:415
2854225991512,2cyclictest3226225-21kworker/u16:0+flush-8:023:24:335
2854219991513,2cyclictest3380996-21kworker/u16:2+flush-8:000:24:454
2854219991513,2cyclictest2993582-21kworker/u16:0+flush-8:021:07:324
285423499146,6cyclictest6184-21gvfs-afc-volume20:14:357
2854234991414,0cyclictest0-21swapper/721:29:077
2854234991413,0cyclictest0-21swapper/722:56:307
2854234991413,0cyclictest0-21swapper/722:19:487
2854234991413,0cyclictest0-21swapper/721:42:237
2854234991413,0cyclictest0-21swapper/721:20:117
2854234991413,0cyclictest0-21swapper/700:32:217
2854234991411,2cyclictest3458438-21systemd-run00:19:177
2854234991411,2cyclictest3458438-21systemd-run00:19:177
2854234991411,1cyclictest0-21swapper/720:39:387
2854225991412,2cyclictest3313235-21kworker/u16:4+events_unbound23:09:355
2854225991411,3cyclictest3080636-21kworker/u16:3+flush-8:021:34:435
2854219991412,2cyclictest3420010-21kworker/u16:3+flush-8:023:59:434
285423499139,3cyclictest1267-21snmpd22:45:207
285423499139,3cyclictest1267-21snmpd22:45:207
285423499139,3cyclictest1267-21snmpd22:03:497
285423499139,3cyclictest1267-21snmpd21:04:397
285423499139,3cyclictest1267-21snmpd20:47:207
285423499139,3cyclictest1267-21snmpd19:34:497
285423499139,3cyclictest1267-21snmpd00:35:267
285423499138,4cyclictest1267-21snmpd20:55:037
285423499133,8cyclictest0-21swapper/720:04:427
2854234991312,0cyclictest0-21swapper/722:10:387
2854234991312,0cyclictest0-21swapper/720:12:277
285423499130,12cyclictest1267-21snmpd00:10:047
2854229991312,1cyclictest0-21swapper/621:50:176
2854229991311,2cyclictest3032639-21kworker/u16:3+events_unbound20:40:326
2854229991311,2cyclictest2964373-21kworker/u16:4+flush-8:020:11:286
2854225991312,1cyclictest0-21swapper/522:19:455
2854225991312,1cyclictest0-21swapper/522:04:185
285422599130,1cyclictest0-21swapper/520:39:005
2854219991311,2cyclictest3313235-21kworker/u16:4+events_unbound23:45:284
2854219991311,2cyclictest3226225-21kworker/u16:0+flush-8:022:32:004
2854219991311,2cyclictest3105040-21kworker/u16:1+events_unbound23:09:454
285423499129,2cyclictest1267-21snmpd21:15:067
285423499128,3cyclictest5944-21gmain22:24:317
285423499128,3cyclictest1267-21snmpd20:29:417
285423499127,4cyclictest1267-21snmpd23:03:187
285423499125,6cyclictest0-21swapper/723:09:447
285423499122,9cyclictest3428372-21ntpq23:59:447
2854234991211,0cyclictest0-21swapper/723:54:227
2854229991210,2cyclictest3380996-21kworker/u16:2+flush-8:000:24:326
2854229991210,2cyclictest2993582-21kworker/u16:0+events_unbound21:16:336
2854225991210,2cyclictest0-21swapper/520:32:425
285422599120,12cyclictest0-21swapper/500:15:565
285422599120,12cyclictest0-21swapper/500:15:565
2854219991210,2cyclictest3080636-21kworker/u16:3+events_unbound21:58:014
285421999120,1cyclictest0-21swapper/422:21:204
285421999120,12cyclictest0-21swapper/423:33:144
285423499115,5cyclictest0-21swapper/722:29:367
285423499113,7cyclictest0-21swapper/720:19:467
2854234991111,0cyclictest0-21swapper/721:35:297
2854234991110,0cyclictest0-21swapper/719:19:257
285422999119,2cyclictest3226225-21kworker/u16:0+flush-8:022:35:356
285422999118,2cyclictest3226225-21kworker/u16:0+flush-8:022:39:216
285422599119,2cyclictest2964373-21kworker/u16:4+flush-8:020:19:175
285422599117,3cyclictest3478999-21cat00:29:325
2854225991110,1cyclictest0-21swapper/523:53:425
2854225991110,1cyclictest0-21swapper/522:43:055
2854225991110,1cyclictest0-21swapper/520:55:145
2854225991110,1cyclictest0-21swapper/519:42:535
2854225991110,1cyclictest0-21swapper/500:34:515
285422599110,1cyclictest0-21swapper/522:15:585
285422599110,11cyclictest0-21swapper/522:12:115
285422599110,11cyclictest0-21swapper/521:56:345
285422599110,11cyclictest0-21swapper/521:39:235
285422599110,11cyclictest0-21swapper/520:47:125
285421999119,2cyclictest3105040-21kworker/u16:1+flush-8:022:43:164
285421999119,2cyclictest3105040-21kworker/u16:1+events_unbound22:15:294
285421999117,3cyclictest3449923-21cat00:14:334
285421999117,3cyclictest3449923-21cat00:14:334
2854219991110,1cyclictest0-21swapper/420:19:284
2854219991110,1cyclictest0-21swapper/420:05:174
285421999110,1cyclictest0-21swapper/421:01:344
285423499107,2cyclictest1267-21snmpd23:49:407
285422999108,2cyclictest2964373-21kworker/u16:4+flush-8:020:24:016
285422599109,1cyclictest0-21swapper/522:44:585
285422599109,1cyclictest0-21swapper/522:44:585
285422599109,1cyclictest0-21swapper/521:46:575
285422599109,1cyclictest0-21swapper/521:05:395
285422599109,1cyclictest0-21swapper/521:03:365
285422599109,1cyclictest0-21swapper/519:12:375
285422599108,2cyclictest3105040-21kworker/u16:1+flush-8:021:19:335
285422599100,0cyclictest0-21swapper/523:24:045
285422599100,0cyclictest0-21swapper/520:26:335
285422599100,0cyclictest0-21swapper/520:26:335
285421999109,1cyclictest0-21swapper/421:39:154
285421999107,2cyclictest2993582-21kworker/u16:0+events_unbound20:54:214
285421999106,3cyclictest2985000-21cat20:14:324
28542299998,1cyclictest0-21swapper/623:26:176
28542259998,1cyclictest0-21swapper/523:00:255
28542259998,1cyclictest0-21swapper/521:50:445
28542259997,2cyclictest2993582-21kworker/u16:0+flush-8:021:24:385
28542259997,2cyclictest2867926-21kworker/u16:4+flush-8:019:24:325
28542259996,3cyclictest3380996-21kworker/u16:2+flush-8:023:54:465
28542259995,3cyclictest3256243-21tune2fs22:34:305
28542259995,3cyclictest2878193-21tune2fs19:19:335
28542199997,1cyclictest0-21swapper/423:14:374
28542259987,1cyclictest0-21swapper/523:18:045
28542259987,1cyclictest0-21swapper/522:29:225
28542259987,1cyclictest0-21swapper/521:29:465
28542259986,2cyclictest3080636-21kworker/u16:3+flush-8:021:14:315
28542259986,1cyclictest0-21swapper/520:39:415
28542259986,1cyclictest0-21swapper/519:54:435
28542259986,1cyclictest0-21swapper/500:04:375
28542259984,3cyclictest3459575-21cat00:19:345
28542259984,3cyclictest3459575-21cat00:19:345
28542259983,4cyclictest3053209-21grep20:49:365
28542199986,1cyclictest0-21swapper/421:29:344
28542259975,1cyclictest0-21swapper/521:09:295
28542259974,2cyclictest2936976-21irqcore19:49:355
28542259972,4cyclictest3382336-21sed23:39:355
28542259972,4cyclictest2927008-21sed19:44:335
28542259972,4cyclictest2906835-21cat19:34:325
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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