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2026-04-07 - 04:40
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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 Tue Apr 07, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
403724225747,7sleep40-21swapper/419:01:354
402816525746,7sleep50-21swapper/518:57:195
4037579995650,5cyclictest521582-21latency_hist00:07:177
403724425141,7sleep60-21swapper/619:01:376
4037579994540,4cyclictest125072-21latency_hist21:22:177
40281762393,31sleep70-21swapper/718:57:297
4037579993833,4cyclictest389412-21latency_hist23:12:177
4037570993633,2cyclictest197744-21kworker/u16:3+events_unbound22:42:305
4037570993533,2cyclictest437749-21kworker/u16:3+flush-8:023:47:165
4037579993429,4cyclictest461410-21latency_hist23:42:167
4037579993429,4cyclictest461410-21latency_hist23:42:167
4037579993332,0cyclictest0-21swapper/723:32:307
4037574993331,2cyclictest77244-21kworker/u16:2+events_unbound22:06:016
4037566993331,2cyclictest340483-21kworker/u16:0+events_unbound23:37:344
4037566993331,2cyclictest340483-21kworker/u16:0+events_unbound23:37:344
4037579993229,2cyclictest124-21kswapd000:12:307
4037574993230,2cyclictest461600-21kworker/u16:4+flush-8:023:51:246
4037574993230,2cyclictest340483-21kworker/u16:0+events_unbound23:10:526
4037574993230,2cyclictest197744-21kworker/u16:3+flush-8:022:44:346
4037570993230,2cyclictest4037092-21kworker/u16:3+events_unbound19:07:225
4037570993229,2cyclictest77244-21kworker/u16:2+events_unbound22:12:305
4037566993229,2cyclictest461600-21kworker/u16:4+flush-8:000:02:224
4618652300,1chrt461866-21sh23:42:247
4037579993025,4cyclictest101104-21latency_hist21:12:177
4037574993028,2cyclictest3989139-21kworker/u16:1+events_unbound20:51:396
4037574992927,2cyclictest3989139-21kworker/u16:1+events_unbound20:41:436
4037574992927,2cyclictest3989139-21kworker/u16:1+events_unbound20:28:346
4037574992927,2cyclictest3989139-21kworker/u16:1+events_unbound19:30:026
4037574992927,2cyclictest124544-21kworker/u16:1+events_unbound21:41:416
4037574992927,2cyclictest124544-21kworker/u16:1+events_unbound21:41:416
4037570992927,2cyclictest461600-21kworker/u16:4+events_unbound00:02:475
4037566992925,3cyclictest437749-21kworker/u16:3+flush-8:023:32:364
4037579992827,0cyclictest0-21swapper/723:57:327
4037574992826,2cyclictest77244-21kworker/u16:2+events_unbound21:04:216
4037574992826,2cyclictest461600-21kworker/u16:4+events_unbound00:07:016
4037574992826,2cyclictest4022578-21kworker/u16:2+events_unbound20:35:386
4037574992826,2cyclictest3989139-21kworker/u16:1+events_unbound20:45:386
4037574992826,2cyclictest329828-21kworker/u16:4+events_unbound22:51:456
4037574992826,2cyclictest317781-21kworker/u16:1+flush-8:023:28:106
4037570992826,2cyclictest317781-21kworker/u16:1+flush-8:022:47:335
4037574992725,2cyclictest437749-21kworker/u16:3+events_unbound00:22:086
4037574992725,2cyclictest437749-21kworker/u16:3+events_unbound00:22:086
4037574992725,2cyclictest437748-21kworker/u16:2+events_unbound23:42:576
4037574992725,2cyclictest4068929-21kworker/u16:0+events_unbound19:14:306
4037574992725,2cyclictest4022578-21kworker/u16:2+events_unbound20:25:426
4037574992725,2cyclictest4022578-21kworker/u16:2+events_unbound20:10:106
4037574992725,2cyclictest4022578-21kworker/u16:2+events_unbound20:01:476
4037574992725,2cyclictest3989139-21kworker/u16:1+events_unbound20:19:466
4037574992724,2cyclictest124544-21kworker/u16:1+events_unbound21:32:246
4037570992725,2cyclictest340483-21kworker/u16:0+events_unbound23:17:405
4037566992726,1cyclictest317781-21kworker/u16:1+events_unbound23:02:344
4037566992725,2cyclictest77244-21kworker/u16:2+flush-8:022:07:534
4037566992725,2cyclictest340483-21kworker/u16:0+events_unbound23:07:404
4037566992723,2cyclictest437749-21kworker/u16:3+flush-8:023:52:174
4037579992621,4cyclictest19735-21latency_hist20:32:177
4037574992624,2cyclictest475862-21kworker/u16:1+events_unbound00:08:046
4037574992624,2cyclictest4037092-21kworker/u16:3+events_unbound19:08:386
4037574992624,2cyclictest4037092-21kworker/u16:3+events_unbound19:04:086
4037574992624,2cyclictest4022578-21kworker/u16:2+events_unbound19:19:076
4037574992624,2cyclictest317781-21kworker/u16:1+flush-8:023:02:116
4037574992624,2cyclictest317781-21kworker/u16:1+flush-8:023:02:116
4037574992624,2cyclictest19917-21kworker/u16:4+events_unbound21:01:436
4037574992624,2cyclictest19917-21kworker/u16:4+events_unbound21:01:436
4037570992624,2cyclictest67446-21kworker/u16:0+flush-8:021:32:425
4037566992624,2cyclictest475862-21kworker/u16:1+flush-8:000:27:114
4037566992623,2cyclictest19917-21kworker/u16:4+events_unbound20:47:354
4037579992522,2cyclictest218203-21ssh21:57:417
403757999250,1cyclictest0-21swapper/720:22:407
4037574992523,2cyclictest4098575-21kworker/u16:3+events_unbound19:55:426
4037574992523,2cyclictest4098575-21kworker/u16:3+events_unbound19:49:446
4037574992523,2cyclictest4098575-21kworker/u16:3+events_unbound19:46:156
4037574992523,2cyclictest4068929-21kworker/u16:0+events_unbound19:25:076
4037574992523,2cyclictest3989139-21kworker/u16:1+events_unbound20:13:566
4037574992523,2cyclictest124544-21kworker/u16:1+events_unbound21:53:096
4037570992523,2cyclictest4022578-21kworker/u16:2+flush-8:019:42:435
4037566992523,2cyclictest124544-21kworker/u16:1+flush-8:021:27:434
4037566992522,3cyclictest77244-21kworker/u16:2+flush-8:022:37:124
4037566992522,2cyclictest340483-21kworker/u16:0+events_unbound22:57:294
4037566992522,2cyclictest340483-21kworker/u16:0+events_unbound22:57:294
4037574992422,2cyclictest19917-21kworker/u16:4+events_unbound20:54:596
4037566992422,2cyclictest461600-21kworker/u16:4+events_unbound00:12:394
4037566992422,2cyclictest329828-21kworker/u16:4+events_unbound23:12:304
4037566992422,2cyclictest124544-21kworker/u16:1+events_unbound21:37:374
4037566992422,2cyclictest124544-21kworker/u16:1+events_unbound21:37:374
4037566992421,2cyclictest4022578-21kworker/u16:2+events_unbound20:22:324
4037566992421,2cyclictest340483-21kworker/u16:0+flush-8:023:17:214
4037579992322,0cyclictest0-21swapper/700:22:417
4037574992321,2cyclictest4022578-21kworker/u16:2+events_unbound20:03:116
4037574992321,2cyclictest3989139-21kworker/u16:1+events_unbound19:33:276
4037574992321,2cyclictest329828-21kworker/u16:4+flush-8:023:12:486
4037570992321,2cyclictest29695-21kworker/u16:5+flush-8:021:07:425
4037570992320,2cyclictest340483-21kworker/u16:0+events_unbound23:27:295
4037566992321,2cyclictest567332-21kworker/u16:0+events_unbound00:27:444
4037566992321,2cyclictest4022578-21kworker/u16:2+events_unbound20:02:424
4037570992220,2cyclictest3989139-21kworker/u16:1+events_unbound19:57:415
4037570992220,2cyclictest173522-21kworker/u16:5+events_unbound22:37:295
4037574992119,2cyclictest67446-21kworker/u16:0+events_unbound21:08:106
4037574992119,2cyclictest437748-21kworker/u16:2+events_unbound23:36:576
4037574992119,2cyclictest4098575-21kworker/u16:3+events_unbound19:39:036
4037570992119,2cyclictest124544-21kworker/u16:1+events_unbound21:22:385
4037566992119,2cyclictest67446-21kworker/u16:0+flush-8:021:17:474
4037566992119,2cyclictest4068929-21kworker/u16:0+events_unbound19:12:404
4037579992018,1cyclictest0-21swapper/719:37:337
4037574992018,2cyclictest317781-21kworker/u16:1+flush-8:023:22:116
4037574992018,2cyclictest173522-21kworker/u16:5+flush-8:022:22:376
4037570992018,2cyclictest3989139-21kworker/u16:1+flush-8:020:52:355
4037570992018,2cyclictest340483-21kworker/u16:0+flush-8:023:37:475
4037570992018,2cyclictest340483-21kworker/u16:0+flush-8:023:37:475
4037570992015,4cyclictest221745-21munin-node22:02:295
4037579991913,5cyclictest485525-21latency_hist23:52:177
403757999191,16cyclictest146008-21ssh21:27:377
403757999190,18cyclictest341309-21latency_hist22:52:167
4037574991917,2cyclictest67446-21kworker/u16:0+flush-8:021:27:486
4037570991917,2cyclictest67446-21kworker/u16:0+flush-8:020:57:425
4037570991917,2cyclictest67446-21kworker/u16:0+flush-8:020:57:425
4037570991917,2cyclictest461600-21kworker/u16:4+flush-8:000:12:435
4037570991917,2cyclictest173522-21kworker/u16:5+events_unbound22:32:455
4037566991917,2cyclictest329828-21kworker/u16:4+events_unbound23:22:434
4037579991814,3cyclictest1267-21snmpd19:51:047
403757999180,17cyclictest0-21swapper/723:12:397
4037574991816,2cyclictest67446-21kworker/u16:0+events_unbound21:12:576
4037570991816,2cyclictest3989139-21kworker/u16:1+events_unbound20:42:405
4037570991816,2cyclictest173522-21kworker/u16:5+flush-8:021:47:125
4037566991816,2cyclictest197744-21kworker/u16:3+events_unbound21:57:454
403757999178,8cyclictest0-21swapper/723:22:317
403757999178,8cyclictest0-21swapper/722:42:387
403757999170,16cyclictest1096-21ntpd23:21:017
4037574991715,2cyclictest173522-21kworker/u16:5+events_unbound22:17:316
4037574991715,2cyclictest173522-21kworker/u16:5+events_unbound22:17:316
4037570991715,2cyclictest77244-21kworker/u16:2+events_unbound22:17:295
4037570991715,2cyclictest77244-21kworker/u16:2+events_unbound22:17:295
4037570991715,2cyclictest340483-21kworker/u16:0+flush-8:023:12:125
4037570991715,2cyclictest197744-21kworker/u16:3+flush-8:022:12:135
4037566991715,2cyclictest4037092-21kworker/u16:3+flush-8:019:07:384
4037566991715,2cyclictest4037092-21kworker/u16:3+events_unbound19:02:424
4037566991715,2cyclictest19917-21kworker/u16:4+events_unbound20:57:434
4037566991715,2cyclictest19917-21kworker/u16:4+events_unbound20:57:434
403757999167,8cyclictest0-21swapper/723:52:407
403757999165,9cyclictest0-21swapper/721:42:417
4037579991613,2cyclictest1267-21snmpd00:18:567
4037579991613,2cyclictest1267-21snmpd00:18:567
4037579991611,4cyclictest650-21systemd-journal23:07:167
403757999160,15cyclictest0-21swapper/722:07:407
403757999160,14cyclictest0-21swapper/720:17:397
4037574991614,2cyclictest173522-21kworker/u16:5+flush-8:022:32:456
4037574991613,2cyclictest461600-21kworker/u16:4+flush-8:000:12:276
4037574991613,2cyclictest340483-21kworker/u16:0+events_unbound23:37:216
4037574991613,2cyclictest340483-21kworker/u16:0+events_unbound23:37:216
4037570991614,2cyclictest67446-21kworker/u16:0+events_unbound21:37:415
4037570991614,2cyclictest67446-21kworker/u16:0+events_unbound21:37:415
4037570991614,2cyclictest475862-21kworker/u16:1+events_unbound23:52:455
4037566991613,3cyclictest197744-21kworker/u16:3+events_unbound22:42:364
4037566991612,3cyclictest4022578-21kworker/u16:2+flush-8:019:42:434
403757999157,7cyclictest0-21swapper/721:22:367
4037579991512,2cyclictest0-21swapper/719:12:187
403757999150,14cyclictest0-21swapper/721:52:427
403757999150,13cyclictest0-21swapper/719:02:407
4037574991513,2cyclictest173522-21kworker/u16:5+events_unbound22:40:276
4037570991513,2cyclictest4022578-21kworker/u16:2+events_unbound20:02:405
4037570991512,2cyclictest197744-21kworker/u16:3+flush-8:022:02:175
403757999147,6cyclictest6045-21gmain20:07:347
403757999147,6cyclictest0-21swapper/722:37:427
403757999147,6cyclictest0-21swapper/722:32:397
403757999146,7cyclictest0-21swapper/700:27:347
403757999145,8cyclictest0-21swapper/723:29:527
403757999145,8cyclictest0-21swapper/722:57:397
403757999145,8cyclictest0-21swapper/722:57:397
403757999145,8cyclictest0-21swapper/721:02:417
403757999144,9cyclictest194187-21ntp_states21:47:437
4037579991413,1cyclictest0-21swapper/722:17:407
4037579991413,1cyclictest0-21swapper/722:17:407
4037579991412,1cyclictest0-21swapper/721:32:307
4037579991411,2cyclictest0-21swapper/719:32:177
4037579991410,3cyclictest1267-21snmpd20:50:537
403757999140,13cyclictest1267-21snmpd21:42:127
403757999140,13cyclictest1267-21snmpd21:42:127
4037574991413,1cyclictest0-21swapper/623:23:316
4037574991412,2cyclictest77244-21kworker/u16:2+flush-8:022:27:326
4037574991412,2cyclictest77244-21kworker/u16:2+flush-8:021:57:426
4037574991412,2cyclictest475862-21kworker/u16:1+events_unbound00:25:576
4037574991412,1cyclictest506704-21smart_sda23:57:446
4037570991413,1cyclictest0-21swapper/521:17:405
403757099140,1cyclictest0-21swapper/500:22:385
403757099140,14cyclictest0-21swapper/523:16:225
403757099140,14cyclictest0-21swapper/523:05:585
4037566991413,1cyclictest0-21swapper/422:30:084
4037566991413,1cyclictest0-21swapper/422:02:334
4037566991412,2cyclictest77244-21kworker/u16:2+events_unbound21:22:324
4037566991411,2cyclictest3989139-21kworker/u16:1+events_unbound19:32:324
4037566991410,3cyclictest437749-21kworker/u16:3+flush-8:023:57:354
403756699140,1cyclictest0-21swapper/420:42:284
403756699140,14cyclictest0-21swapper/422:24:374
403756699140,14cyclictest0-21swapper/422:19:064
403756699140,14cyclictest0-21swapper/422:19:064
403756699140,14cyclictest0-21swapper/421:51:314
403756699140,14cyclictest0-21swapper/421:07:514
403757999139,3cyclictest1267-21snmpd20:05:137
403757999139,3cyclictest1267-21snmpd00:08:267
403757999136,6cyclictest0-21swapper/722:24:267
403757999136,6cyclictest0-21swapper/722:02:447
403757999135,7cyclictest0-21swapper/722:54:257
403757999135,7cyclictest0-21swapper/722:12:367
403757999135,7cyclictest0-21swapper/721:12:297
4037579991312,0cyclictest0-21swapper/719:42:327
4037579991311,1cyclictest0-21swapper/722:27:427
4037574991312,1cyclictest0-21swapper/623:04:456
4037574991312,1cyclictest0-21swapper/621:49:526
4037574991312,1cyclictest0-21swapper/621:25:076
4037574991311,2cyclictest437749-21kworker/u16:3+flush-8:000:28:236
4037570991312,1cyclictest0-21swapper/522:54:185
4037570991312,1cyclictest0-21swapper/521:49:215
4037570991312,1cyclictest0-21swapper/521:12:275
4037570991312,1cyclictest0-21swapper/520:27:135
403757099130,1cyclictest0-21swapper/500:09:215
403757099130,0cyclictest0-21swapper/521:31:415
4037566991312,1cyclictest0-21swapper/422:52:134
4037566991312,1cyclictest0-21swapper/420:57:174
403756699130,13cyclictest0-21swapper/423:44:524
403757999128,3cyclictest1267-21snmpd20:16:257
403757999128,3cyclictest0-21swapper/720:57:327
403757999128,3cyclictest0-21swapper/720:57:327
403757999120,4cyclictest6184-21gvfs-afc-volume19:52:337
403757999120,2cyclictest0-21swapper/720:52:407
403757999120,11cyclictest0-21swapper/719:17:347
4037574991211,1cyclictest0-21swapper/622:16:026
4037574991210,2cyclictest77244-21kworker/u16:2+flush-8:022:07:506
4037574991210,2cyclictest29695-21kworker/u16:5+events_unbound21:18:286
4037574991210,2cyclictest197744-21kworker/u16:3+flush-8:022:53:146
4037574991210,2cyclictest173522-21kworker/u16:5+events_unbound21:42:406
403757099128,3cyclictest4185737-21cat20:17:315
403757099128,3cyclictest4022578-21kworker/u16:2+flush-8:019:22:435
4037570991211,1cyclictest0-21swapper/523:58:375
4037570991210,2cyclictest19917-21kworker/u16:4+events_unbound20:32:305
4037566991211,1cyclictest0-21swapper/421:42:324
4037566991211,1cyclictest0-21swapper/419:37:214
4037566991211,1cyclictest0-21swapper/400:18:464
4037566991211,1cyclictest0-21swapper/400:18:464
4037566991210,2cyclictest3989139-21kworker/u16:1+events_unbound20:27:294
403756699120,1cyclictest0-21swapper/419:59:164
3473622120,0sleep465-21ksoftirqd/422:52:364
403757999117,3cyclictest96-21ksoftirqd/719:27:297
403757999117,3cyclictest5777-21gmain20:42:347
403757999117,3cyclictest1267-21snmpd19:59:047
403757999117,3cyclictest1267-21snmpd19:23:307
403757999110,2cyclictest4052509-21kthreadcore19:07:337
403757499119,2cyclictest437749-21kworker/u16:3+events_unbound23:52:356
403757099119,1cyclictest444303-21grep23:32:375
4037570991110,1cyclictest0-21swapper/519:33:555
403757099110,11cyclictest0-21swapper/520:15:525
403757099110,11cyclictest0-21swapper/519:38:205
403757099110,11cyclictest0-21swapper/519:14:415
403756699119,2cyclictest19917-21kworker/u16:4+events_unbound20:32:324
4037566991110,1cyclictest0-21swapper/422:41:114
403756699110,11cyclictest0-21swapper/420:08:534
403756699110,0cyclictest0-21swapper/420:16:464
403757999105,4cyclictest35996-21tr20:37:387
403757999100,2cyclictest0-21swapper/720:32:437
403757099109,1cyclictest0-21swapper/523:47:455
403757099109,1cyclictest0-21swapper/522:59:495
403757099109,1cyclictest0-21swapper/522:59:495
403757099109,1cyclictest0-21swapper/522:24:405
403757099109,1cyclictest0-21swapper/520:11:555
403757099109,1cyclictest0-21swapper/519:52:325
403757099108,2cyclictest475862-21kworker/u16:1+events_unbound00:17:405
403757099108,2cyclictest475862-21kworker/u16:1+events_unbound00:17:405
403757099108,2cyclictest29695-21kworker/u16:5+events_unbound21:02:405
403757099108,2cyclictest19917-21kworker/u16:4+events_unbound20:47:415
403757099108,2cyclictest124544-21kworker/u16:1+events_unbound21:52:305
403757099108,1cyclictest0-21swapper/519:47:415
403757099107,3cyclictest475862-21kworker/u16:1+flush-8:000:27:405
403757099106,3cyclictest30487-21cat20:37:335
403756699109,1cyclictest0-21swapper/421:55:084
403756699109,1cyclictest0-21swapper/419:26:384
403756699108,2cyclictest4098575-21kworker/u16:3+events_unbound19:47:454
403756699108,2cyclictest4022578-21kworker/u16:2+events_unbound19:17:334
403756699108,2cyclictest124544-21kworker/u16:1+events_unbound21:32:424
403756699106,3cyclictest85929-21netstat21:02:394
403756699101,2cyclictest0-21swapper/423:29:034
40375709998,1cyclictest0-21swapper/519:03:495
40375709997,1cyclictest0-21swapper/522:27:335
40375709997,1cyclictest0-21swapper/520:27:355
40375709997,1cyclictest0-21swapper/519:27:355
40375709997,1cyclictest0-21swapper/519:17:395
40375669997,2cyclictest475862-21kworker/u16:1+events_unbound23:52:284
40375669994,4cyclictest30503-21cat20:37:334
40375669990,8cyclictest0-21swapper/400:09:174
40375709986,1cyclictest0-21swapper/523:22:335
40375669985,2cyclictest0-21swapper/419:27:354
40375669984,3cyclictest4186193-21kthreadcore20:17:344
40375669983,4cyclictest252998-21cut22:12:384
40375669983,4cyclictest106006-21cut21:12:384
40375669972,4cyclictest4137383-21grep19:52:294
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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