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2026-09-04 - 22:19
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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 792 highest latencies:
System rack0slot2.osadl.org (updated Fri Sep 04, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
398535026251,8sleep40-21swapper/407:07:244
3985778995550,4cyclictest66450-21latency_hist09:24:247
398541925116,30sleep70-21swapper/707:08:247
3985778994640,4cyclictest411982-21latency_hist11:44:247
3985773994643,2cyclictest101446-21kworker/u16:1+flush-8:009:44:245
398536924333,7sleep50-21swapper/507:07:425
3985773994138,3cyclictest101446-21kworker/u16:1+flush-8:009:59:255
3985773994138,2cyclictest177613-21kworker/u16:4+flush-8:010:09:435
3985773993832,5cyclictest348704-21kworker/u16:1+flush-8:011:39:245
3985768993835,2cyclictest460083-21kworker/u16:1+events_unbound12:11:474
3985778993735,1cyclictest29450-21diskmemload11:09:447
3985768993735,2cyclictest460084-21kworker/u16:4+events_unbound12:04:314
3985778993632,3cyclictest187078-21ssh10:10:017
3985768993634,2cyclictest473577-21kworker/u16:2+events_unbound12:31:434
3985768993634,2cyclictest4135625-21kworker/u16:3+events_unbound09:18:204
3985768993634,2cyclictest276317-21kworker/u16:1+events_unbound10:56:524
3985778993534,0cyclictest0-21swapper/710:35:167
3985768993533,2cyclictest4193467-21kworker/u16:0+events_unbound09:49:284
3985768993533,2cyclictest224707-21kworker/u16:0+events_unbound11:06:154
3985768993533,2cyclictest150334-21kworker/u16:3+events_unbound09:59:154
3985768993532,2cyclictest4135625-21kworker/u16:3+events_unbound09:24:294
398545523525,7sleep60-21swapper/607:08:556
3985778993429,3cyclictest1065-21runrttasks10:44:357
3985768993432,2cyclictest348704-21kworker/u16:1+events_unbound11:39:084
3985768993432,2cyclictest336097-21kworker/u16:2+events_unbound11:32:474
3985768993432,2cyclictest290099-21kworker/u16:3+events_unbound11:54:314
3985768993432,2cyclictest290099-21kworker/u16:3+events_unbound11:02:404
3985768993331,2cyclictest4193467-21kworker/u16:0+events_unbound09:12:204
3985768993331,2cyclictest4193467-21kworker/u16:0+events_unbound09:01:004
3985768993331,2cyclictest336097-21kworker/u16:2+events_unbound11:21:104
4694642320,1chrt741rcuc/512:04:475
3985778993227,4cyclictest78850-21latency_hist09:29:247
3985773993230,2cyclictest4115896-21kworker/u16:0+flush-8:008:14:405
3985768993230,2cyclictest79276-21kworker/u16:2+flush-8:010:29:474
3985768993230,2cyclictest4193467-21kworker/u16:0+flush-8:009:22:014
3985768993230,2cyclictest290099-21kworker/u16:3+events_unbound11:12:454
3985768993229,2cyclictest4193467-21kworker/u16:0+flush-8:009:34:514
3985768993129,2cyclictest473577-21kworker/u16:2+events_unbound12:15:124
3985768993129,2cyclictest4193467-21kworker/u16:0+events_unbound09:04:514
3985768993129,2cyclictest336097-21kworker/u16:2+events_unbound11:29:164
3985768993129,2cyclictest177613-21kworker/u16:4+events_unbound10:23:444
3985768993129,2cyclictest150334-21kworker/u16:3+events_unbound10:34:584
3985778993029,0cyclictest0-21swapper/709:35:167
3985768993028,2cyclictest79276-21kworker/u16:2+events_unbound10:05:144
3985768993028,2cyclictest4155015-21kworker/u16:1+events_unbound08:43:004
3985768993028,2cyclictest4155015-21kworker/u16:1+events_unbound08:36:014
3985768993028,2cyclictest410634-21kworker/u16:0+events_unbound11:51:454
3985768993028,2cyclictest3966099-21kworker/u16:2+events_unbound08:33:004
3985768993028,2cyclictest177613-21kworker/u16:4+events_unbound10:14:314
3985768993027,2cyclictest4193467-21kworker/u16:0+events_unbound08:54:264
4886082290,1chrt0-21swapper/612:14:426
3985773992927,2cyclictest4028458-21kworker/u16:4+events_unbound07:29:485
3985768992928,1cyclictest79276-21kworker/u16:2+events_unbound10:28:354
3985768992927,2cyclictest64040-21kworker/u16:5+events_unbound10:00:374
3985768992927,2cyclictest4115896-21kworker/u16:0+events_unbound08:19:504
3985768992927,2cyclictest4076623-21kworker/u16:1+events_unbound08:01:404
3985768992927,2cyclictest336097-21kworker/u16:2+events_unbound11:41:214
3985768992927,2cyclictest290099-21kworker/u16:3+events_unbound11:45:454
3985768992927,2cyclictest276317-21kworker/u16:1+events_unbound10:51:184
3985773992826,2cyclictest79276-21kworker/u16:2+flush-8:009:54:205
3985773992826,2cyclictest423281-21kworker/u16:2+flush-8:012:02:165
3985773992826,2cyclictest224707-21kworker/u16:0+events_unbound10:55:165
3985768992826,2cyclictest4115896-21kworker/u16:0+events_unbound08:14:374
3985775992724,2cyclictest224707-21kworker/u16:0+events_unbound11:04:276
3985773992725,2cyclictest498331-21kworker/u16:0+flush-8:012:39:245
3985773992725,2cyclictest177613-21kworker/u16:4+flush-8:010:19:395
3985768992725,2cyclictest79276-21kworker/u16:2+events_unbound09:33:464
3985768992725,2cyclictest64040-21kworker/u16:5+events_unbound09:45:304
3985768992725,2cyclictest498331-21kworker/u16:0+events_unbound12:36:364
3985768992725,2cyclictest4135625-21kworker/u16:3+flush-8:008:44:444
3985768992725,2cyclictest410634-21kworker/u16:0+flush-8:012:03:584
3985768992725,2cyclictest224707-21kworker/u16:0+events_unbound10:48:374
3985768992725,2cyclictest150334-21kworker/u16:3+events_unbound10:41:454
3985768992624,2cyclictest460084-21kworker/u16:4+events_unbound12:25:334
3985768992624,2cyclictest3021330-21kworker/u16:0+events_unbound07:47:044
3985768992624,2cyclictest290099-21kworker/u16:3+flush-8:011:15:264
3985768992624,2cyclictest2530310-21kworker/u16:1+flush-8:007:33:084
3985778992523,1cyclictest0-21swapper/710:34:047
3985773992523,2cyclictest3945853-21kworker/u16:3+flush-8:007:24:485
3985768992523,2cyclictest460084-21kworker/u16:4+flush-8:012:20:414
3985768992523,2cyclictest4028458-21kworker/u16:4+events_unbound07:38:484
3985768992523,2cyclictest3945853-21kworker/u16:3+flush-8:007:26:594
3985768992523,2cyclictest150334-21kworker/u16:3+events_unbound10:10:034
3985768992522,2cyclictest3966099-21kworker/u16:2+events_unbound08:24:284
3985778992422,1cyclictest29450-21diskmemload09:09:407
3985775992422,2cyclictest101446-21kworker/u16:1+flush-8:010:15:156
3985768992422,2cyclictest4193467-21kworker/u16:0+flush-8:009:39:474
3985768992422,2cyclictest4086871-21kworker/u16:3+flush-8:008:13:044
3985768992422,2cyclictest4028458-21kworker/u16:4+events_unbound07:44:004
3985775992321,2cyclictest460083-21kworker/u16:1+flush-8:012:04:256
3985775992321,2cyclictest4193467-21kworker/u16:0+flush-8:009:04:196
3985775992321,2cyclictest4028458-21kworker/u16:4+flush-8:007:44:526
3985775992321,2cyclictest4028458-21kworker/u16:4+events_unbound07:39:406
3985768992321,2cyclictest4076623-21kworker/u16:1+events_unbound07:58:364
3985768992321,2cyclictest3966099-21kworker/u16:2+flush-8:007:52:044
3985768992321,2cyclictest3966099-21kworker/u16:2+events_unbound07:21:244
398577899220,20cyclictest445753-21grep11:54:527
3985775992220,2cyclictest64040-21kworker/u16:5+flush-8:009:20:396
3985775992220,2cyclictest460083-21kworker/u16:1+flush-8:012:04:206
3985775992220,2cyclictest410634-21kworker/u16:0+flush-8:011:59:196
3985775992220,2cyclictest224707-21kworker/u16:0+flush-8:011:01:516
3985773992220,2cyclictest4135625-21kworker/u16:3+flush-8:008:34:405
3985773992219,2cyclictest150334-21kworker/u16:3+events_unbound10:34:395
3985768992220,2cyclictest4193467-21kworker/u16:0+events_unbound08:53:484
3985768992220,2cyclictest4193467-21kworker/u16:0+events_unbound08:53:484
3985768992220,2cyclictest3966099-21kworker/u16:2+events_unbound07:18:404
3985778992120,0cyclictest0-21swapper/710:17:397
3985778992120,0cyclictest0-21swapper/707:49:207
3985775992119,2cyclictest4193467-21kworker/u16:0+events_unbound09:19:196
3985775992119,2cyclictest224707-21kworker/u16:0+flush-8:010:29:196
3985775992119,2cyclictest224707-21kworker/u16:0+events_unbound10:48:476
3985773992119,2cyclictest460084-21kworker/u16:4+flush-8:012:24:195
3985773992119,2cyclictest290099-21kworker/u16:3+events_unbound11:03:565
3985773992119,2cyclictest101446-21kworker/u16:1+events_unbound10:04:375
3985768992119,2cyclictest4086871-21kworker/u16:3+events_unbound08:07:124
3985768992119,2cyclictest3021330-21kworker/u16:0+flush-8:007:12:394
3985778992015,4cyclictest473571-21latency_hist12:09:247
3985778992015,4cyclictest313422-21latency_hist11:04:247
3985775992018,2cyclictest3945853-21kworker/u16:3+events_unbound07:09:436
3985775992018,2cyclictest2530310-21kworker/u16:1+flush-8:007:24:406
3985775992018,2cyclictest224707-21kworker/u16:0+flush-8:010:31:386
3985778991918,0cyclictest0-21swapper/707:19:497
3985778991916,2cyclictest4111955-21kthreadcore08:09:447
3985775991917,2cyclictest529541-21kworker/u16:5+flush-8:012:30:076
3985775991917,2cyclictest4193467-21kworker/u16:0+events_unbound09:29:036
3985775991917,2cyclictest290099-21kworker/u16:3+flush-8:011:26:056
3985775991917,2cyclictest101446-21kworker/u16:1+flush-8:010:14:046
3985773991917,2cyclictest4115896-21kworker/u16:0+flush-8:008:24:205
3985773991917,2cyclictest224707-21kworker/u16:0+flush-8:011:09:195
3985773991917,2cyclictest224707-21kworker/u16:0+events_unbound10:29:385
3985778991813,4cyclictest43093-21cat09:14:387
3985775991816,2cyclictest460084-21kworker/u16:4+events_unbound12:38:566
3985775991816,2cyclictest4037686-21kworker/u16:5+events_unbound07:34:496
3985775991816,2cyclictest336097-21kworker/u16:2+flush-8:011:12:056
3985773991816,2cyclictest474921-21kworker/u16:3+flush-8:012:24:395
3985773991816,2cyclictest336097-21kworker/u16:2+events_unbound11:19:595
3985773991815,2cyclictest474921-21kworker/u16:3+flush-8:012:29:345
3985778991716,0cyclictest0-21swapper/707:34:457
3985778991715,1cyclictest29450-21diskmemload12:03:277
3985778991715,1cyclictest0-21swapper/708:34:477
3985778991714,2cyclictest531709-21kthreadcore12:29:467
3985778991713,3cyclictest1277-21snmpd07:51:277
398577899170,1cyclictest0-21swapper/708:24:477
398577899170,1cyclictest0-21swapper/707:14:477
3985775991715,2cyclictest79276-21kworker/u16:2+flush-8:009:45:036
3985775991715,2cyclictest474921-21kworker/u16:3+events_unbound12:28:396
3985775991715,2cyclictest4076623-21kworker/u16:1+events_unbound08:19:386
3985775991715,2cyclictest3966099-21kworker/u16:2+events_unbound08:25:036
3985773991715,2cyclictest4193467-21kworker/u16:0+flush-8:009:04:505
3985773991715,2cyclictest4028458-21kworker/u16:4+events_unbound08:04:395
3985778991614,1cyclictest486499-21ssh12:14:357
3985778991614,1cyclictest0-21swapper/711:25:247
3985778991614,1cyclictest0-21swapper/710:06:127
398577899160,14cyclictest0-21swapper/707:09:497
3985775991614,2cyclictest79276-21kworker/u16:2+flush-8:009:36:316
3985775991614,2cyclictest460083-21kworker/u16:1+events_unbound12:09:386
3985775991614,2cyclictest3966099-21kworker/u16:2+events_unbound07:22:036
3985775991614,2cyclictest3945853-21kworker/u16:3+events_unbound07:30:046
3985775991614,2cyclictest336097-21kworker/u16:2+events_unbound11:35:206
3985775991614,2cyclictest224707-21kworker/u16:0+flush-8:010:43:566
3985775991614,2cyclictest150334-21kworker/u16:3+events_unbound10:20:156
3985773991614,2cyclictest4135625-21kworker/u16:3+flush-8:009:30:005
3985773991613,2cyclictest177613-21kworker/u16:4+events_unbound10:14:395
398577399160,15cyclictest0-21swapper/511:39:295
3985778991514,0cyclictest0-21swapper/712:19:387
3985778991514,0cyclictest0-21swapper/707:24:457
3985778991513,1cyclictest0-21swapper/710:19:457
3985778991511,3cyclictest520770-21ssh12:25:337
398577599154,11cyclictest86-21ksoftirqd/611:32:236
3985775991514,1cyclictest0-21swapper/612:19:556
3985775991513,2cyclictest4135625-21kworker/u16:3+events_unbound08:57:536
3985775991513,2cyclictest4028458-21kworker/u16:4+events_unbound07:49:406
3985775991513,2cyclictest3966099-21kworker/u16:2+flush-8:008:18:116
3985775991513,2cyclictest336097-21kworker/u16:2+flush-8:011:20:266
3985775991513,2cyclictest276317-21kworker/u16:1+events_unbound10:55:596
3985775991513,2cyclictest101446-21kworker/u16:1+events_unbound09:56:486
3985773991513,2cyclictest4193467-21kworker/u16:0+events_unbound09:23:485
3985773991513,2cyclictest290099-21kworker/u16:3+flush-8:011:49:585
3985773991513,2cyclictest290099-21kworker/u16:3+events_unbound11:14:475
398577899149,4cyclictest263978-21latency_hist10:44:247
398577899148,5cyclictest4057490-21latency_hist07:44:257
3985778991412,1cyclictest300178-21ssh10:57:557
3985778991412,1cyclictest223726-21ssh10:24:517
3985778991412,1cyclictest0-21swapper/709:04:477
3985778991412,1cyclictest0-21swapper/708:29:377
3985778991411,2cyclictest10010-21grep08:59:247
398577899140,12cyclictest415640-21grep11:44:427
398577899140,12cyclictest355426-21cut11:19:467
3985775991412,2cyclictest4193467-21kworker/u16:0+flush-8:009:34:236
3985775991412,2cyclictest4115896-21kworker/u16:0+events_unbound08:32:116
3985775991412,2cyclictest348704-21kworker/u16:1+events_unbound11:42:206
3985775991411,2cyclictest4193467-21kworker/u16:0+events_unbound09:09:286
398577599140,14cyclictest0-21swapper/610:51:256
3985773991413,1cyclictest0-21swapper/511:13:005
3985773991412,2cyclictest290099-21kworker/u16:3+flush-8:011:44:395
398577399140,1cyclictest0-21swapper/510:02:515
398577399140,1cyclictest0-21swapper/508:59:575
398577399140,14cyclictest0-21swapper/512:17:385
398577899139,3cyclictest1277-21snmpd11:37:507
398577899139,3cyclictest1277-21snmpd09:59:507
398577899139,3cyclictest1277-21snmpd09:41:447
398577899138,4cyclictest1277-21snmpd08:07:487
3985778991312,0cyclictest0-21swapper/712:13:207
3985778991312,0cyclictest0-21swapper/709:56:287
3985778991311,1cyclictest84381-21kthreadcore09:29:447
3985778991311,1cyclictest536268-21expr12:34:347
3985778991310,2cyclictest4125606-21awk08:19:247
3985778991310,2cyclictest0-21swapper/711:29:447
398577899130,2cyclictest125957-21ssh09:45:267
3985775991312,1cyclictest0-21swapper/610:03:586
3985775991311,2cyclictest4135625-21kworker/u16:3+events_unbound08:50:536
3985775991311,2cyclictest4135625-21kworker/u16:3+events_unbound08:50:536
3985775991311,2cyclictest3966099-21kworker/u16:2+events_unbound09:05:306
3985775991311,2cyclictest224707-21kworker/u16:0+flush-8:010:38:086
398577599130,13cyclictest0-21swapper/611:15:016
3985773991312,1cyclictest3966099-21kworker/u16:2+flush-8:007:19:555
3985773991312,1cyclictest0-21swapper/512:10:045
3985773991311,2cyclictest4135625-21kworker/u16:3+flush-8:009:25:155
3985773991311,2cyclictest10012-21kworker/u16:4+flush-8:009:19:255
398577399130,0cyclictest0-21swapper/507:53:065
398577899128,3cyclictest11172-21cat08:59:387
398577899127,4cyclictest314487-21tune2fs11:04:377
398577899126,5cyclictest277651-21cat10:49:437
398577899125,6cyclictest6175-21gvfs-afc-volume09:49:547
3985778991212,0cyclictest0-21swapper/711:15:077
3985778991210,1cyclictest0-21swapper/708:49:507
3985778991210,1cyclictest0-21swapper/708:49:507
398577899120,10cyclictest648-21systemd-journal07:59:247
398577899120,10cyclictest4165702-21cat08:39:397
3985775991210,2cyclictest64040-21kworker/u16:5+events_unbound09:42:346
3985775991210,2cyclictest410634-21kworker/u16:0+flush-8:011:46:236
3985775991210,2cyclictest410634-21kworker/u16:0+events_unbound11:51:276
3985775991210,2cyclictest2530310-21kworker/u16:1+events_unbound07:16:456
3985773991211,1cyclictest0-21swapper/508:57:355
3985773991211,1cyclictest0-21swapper/507:56:535
3985773991211,1cyclictest0-21swapper/507:36:245
398577399120,12cyclictest0-21swapper/508:02:345
398577399120,12cyclictest0-21swapper/507:49:195
398577399120,12cyclictest0-21swapper/507:19:135
398577399120,0cyclictest0-21swapper/507:40:585
398577899118,2cyclictest0-21swapper/708:44:247
398577899117,3cyclictest1277-21snmpd11:52:087
398577899110,10cyclictest1277-21snmpd08:22:457
398577599119,2cyclictest3966099-21kworker/u16:2+flush-8:008:37:596
398577599119,2cyclictest101446-21kworker/u16:1+events_unbound10:04:356
398577599113,1cyclictest201rcu_preempt09:52:546
398577599110,11cyclictest0-21swapper/607:55:106
398577599110,0cyclictest0-21swapper/608:01:566
398577399119,2cyclictest4193467-21kworker/u16:0+events_unbound09:46:235
398577399119,2cyclictest4076623-21kworker/u16:1+flush-8:008:09:435
398577399119,2cyclictest336097-21kworker/u16:2+flush-8:011:24:355
398577399119,2cyclictest290099-21kworker/u16:3+events_unbound11:54:525
398577399119,2cyclictest290099-21kworker/u16:3+events_unbound11:30:235
3985773991110,1cyclictest0-21swapper/510:47:565
3985773991110,1cyclictest0-21swapper/508:53:205
3985773991110,1cyclictest0-21swapper/508:53:205
3985773991110,1cyclictest0-21swapper/508:41:215
3985773991110,1cyclictest0-21swapper/508:29:505
398577399110,11cyclictest0-21swapper/508:45:365
398577899106,3cyclictest1277-21snmpd07:59:007
398577899106,3cyclictest1277-21snmpd07:30:147
398577599108,2cyclictest4135625-21kworker/u16:3+flush-8:008:45:156
398577599108,2cyclictest4076623-21kworker/u16:1+events_unbound08:04:496
398577599108,2cyclictest3966099-21kworker/u16:2+events_unbound08:10:356
398577399109,1cyclictest0-21swapper/508:29:035
398577399108,2cyclictest79276-21kworker/u16:2+flush-8:010:42:245
398577399107,2cyclictest79276-21kworker/u16:2+events_unbound10:26:405
39857759997,2cyclictest4155015-21kworker/u16:1+events_unbound08:43:256
39857739998,1cyclictest101446-21kworker/u16:1+events_unbound09:39:075
39857739983,4cyclictest3987028-21cut07:09:415
39857739963,2cyclictest298592sleep509:09:295
39857739963,2cyclictest0-21swapper/510:52:565
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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