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2026-01-07 - 01:47
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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 Wed Jan 07, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
338042925319,30sleep70-21swapper/719:06:037
3380877994842,5cyclictest3461898-21latency_hist19:48:187
338033224433,8sleep50-21swapper/519:04:405
338036324333,7sleep60-21swapper/619:05:066
3380868993937,2cyclictest3370228-21kworker/u16:2+flush-8:019:58:185
338053023929,7sleep40-21swapper/419:07:284
3380868993734,2cyclictest3626199-21kworker/u16:0+flush-8:021:13:185
3380877993630,5cyclictest3636233-21latency_hist21:18:187
3380863993128,2cyclictest3390435-21kworker/u16:0+flush-8:019:18:374
3380868993028,2cyclictest3752212-21kworker/u16:2+flush-8:022:18:185
3380868993028,2cyclictest3509455-21kworker/u16:1+events_unbound20:18:195
3380868993028,2cyclictest3370228-21kworker/u16:2+flush-8:019:28:195
3380863993028,2cyclictest3626199-21kworker/u16:0+flush-8:021:13:434
3380877992827,0cyclictest0-21swapper/723:08:317
3380877992827,0cyclictest0-21swapper/719:38:497
338087799280,26cyclictest3675075-21sed21:38:187
3380868992826,2cyclictest3752860-21kworker/u16:4+events_unbound22:33:205
3380868992725,2cyclictest3752212-21kworker/u16:2+flush-8:022:18:325
3380868992624,2cyclictest3829976-21kworker/u16:2+flush-8:023:28:475
3380877992423,0cyclictest0-21swapper/720:38:437
3380872992422,2cyclictest3926396-21kworker/u16:4+events_unbound00:08:526
3380868992422,2cyclictest3995693-21kworker/u16:2+events_unbound00:25:285
3380868992422,2cyclictest3548617-21kworker/u16:2+events_unbound20:38:475
3380868992421,2cyclictest3897714-21kworker/u16:1+flush-8:000:08:395
3380877992322,0cyclictest0-21swapper/700:03:437
3380872992321,2cyclictest4004075-21kworker/u16:4+events_unbound00:28:326
3380868992321,2cyclictest3790229-21kworker/u16:0+events_unbound22:58:385
3380877992221,0cyclictest0-21swapper/719:13:327
3380868992220,2cyclictest3790229-21kworker/u16:0+events_unbound23:53:395
3380868992220,2cyclictest3626199-21kworker/u16:0+flush-8:021:28:375
3380868992219,2cyclictest4004075-21kworker/u16:4+flush-8:000:28:285
3380877992115,5cyclictest3849303-21latency_hist23:08:187
3380877992115,5cyclictest3829937-21latency_hist22:58:187
3380868992120,1cyclictest3370228-21kworker/u16:2+events_unbound19:38:435
3380868992119,2cyclictest3538309-21kworker/u16:4+flush-8:021:13:385
3380877992014,5cyclictest3994492-21latency_hist00:23:177
3380877992014,5cyclictest3742803-21latency_hist22:13:187
3380877992014,5cyclictest3742803-21latency_hist22:13:187
3380872992018,2cyclictest3713371-21kworker/u16:3+events_unbound00:23:086
3380872992018,2cyclictest3509455-21kworker/u16:1+events_unbound20:31:176
3380872992018,2cyclictest3433281-21kworker/u16:0+events_unbound19:55:086
3380872992018,2cyclictest3370228-21kworker/u16:2+events_unbound19:43:206
3380868992018,2cyclictest3370228-21kworker/u16:2+flush-8:019:28:375
3380863992018,2cyclictest3713371-21kworker/u16:3+events_unbound23:03:334
3380863992018,1cyclictest0-21swapper/419:29:244
3380877991918,0cyclictest0-21swapper/700:23:317
3380877991915,3cyclictest1267-21snmpd20:48:597
3380872991917,2cyclictest3995693-21kworker/u16:2+events_unbound00:25:076
3380872991917,2cyclictest3597565-21kworker/u16:2+events_unbound21:34:366
3380872991917,2cyclictest3433281-21kworker/u16:0+events_unbound19:51:476
3380868991917,2cyclictest3752860-21kworker/u16:4+events_unbound22:40:045
3380868991917,2cyclictest3713371-21kworker/u16:3+events_unbound23:48:195
3380868991917,2cyclictest3713371-21kworker/u16:3+events_unbound22:54:285
3380868991917,2cyclictest3597565-21kworker/u16:2+events_unbound21:18:415
3380868991916,2cyclictest3597565-21kworker/u16:2+events_unbound21:23:365
3380877991817,0cyclictest0-21swapper/722:48:327
338087799180,17cyclictest3578025-21latency_hist20:48:187
3380868991816,2cyclictest4004075-21kworker/u16:4+flush-8:000:37:285
3380868991816,2cyclictest3713371-21kworker/u16:3+flush-8:022:48:335
338087799170,1cyclictest0-21swapper/723:18:427
3380872991715,2cyclictest3790229-21kworker/u16:0+events_unbound23:16:166
3380872991715,2cyclictest3597565-21kworker/u16:2+events_unbound21:15:046
3380872991715,2cyclictest3529991-21kworker/u16:0+events_unbound20:23:266
3380872991715,2cyclictest3370228-21kworker/u16:2+events_unbound19:38:086
3380872991715,2cyclictest3370228-21kworker/u16:2+events_unbound19:14:296
3380872991714,2cyclictest3810630-21kworker/u16:1+events_unbound22:58:196
3380872991714,2cyclictest2529822-21kworker/u16:4+events_unbound19:08:206
3380868991715,2cyclictest3646007-21kworker/u16:1+flush-8:022:08:135
3380868991715,2cyclictest3646007-21kworker/u16:1+events_unbound22:09:165
3380868991715,2cyclictest3646007-21kworker/u16:1+events_unbound22:09:165
3380868991715,2cyclictest3509455-21kworker/u16:1+events_unbound20:58:435
3380877991614,1cyclictest0-21swapper/722:03:457
3380877991614,1cyclictest0-21swapper/719:33:427
3380872991615,1cyclictest3597565-21kworker/u16:2+events_unbound21:01:056
3380872991614,2cyclictest3790229-21kworker/u16:0+events_unbound23:42:486
3380872991614,2cyclictest3790229-21kworker/u16:0+events_unbound22:49:196
3380872991614,2cyclictest3752860-21kworker/u16:4+events_unbound22:48:156
3380872991614,2cyclictest3713371-21kworker/u16:3+events_unbound22:38:156
3380872991614,2cyclictest3578408-21kworker/u16:0+events_unbound20:53:306
3380872991614,2cyclictest3509455-21kworker/u16:1+events_unbound20:18:516
3380872991613,2cyclictest3646007-21kworker/u16:1+events_unbound21:38:216
338087299160,15cyclictest0-21swapper/622:28:336
3380868991614,2cyclictest3646007-21kworker/u16:1+events_unbound22:00:285
3380868991614,2cyclictest3578408-21kworker/u16:0+flush-8:020:53:375
3380863991614,2cyclictest3646007-21kworker/u16:1+events_unbound21:28:334
3380877991514,0cyclictest0-21swapper/722:58:327
3380877991513,1cyclictest0-21swapper/719:53:347
3380877991513,1cyclictest0-21swapper/719:48:447
3380877991511,3cyclictest1267-21snmpd20:31:357
338087799150,13cyclictest0-21swapper/723:38:417
3380872991513,2cyclictest3790229-21kworker/u16:0+events_unbound23:57:086
3380872991513,2cyclictest3713371-21kworker/u16:3+events_unbound22:22:356
3380872991513,2cyclictest3674200-21kworker/u16:5+events_unbound21:46:286
3380872991513,2cyclictest3646007-21kworker/u16:1+events_unbound22:01:056
3380872991513,2cyclictest3597565-21kworker/u16:2+events_unbound21:29:226
3380872991513,2cyclictest3538309-21kworker/u16:4+events_unbound20:49:336
3380872991512,2cyclictest841rcuc/621:03:366
3380872991512,2cyclictest3646007-21kworker/u16:1+events_unbound21:48:216
3380868991513,2cyclictest3509455-21kworker/u16:1+flush-8:020:18:395
3380868991513,2cyclictest3370228-21kworker/u16:2+events_unbound19:17:295
3380877991413,0cyclictest0-21swapper/719:28:317
338087799140,1cyclictest0-21swapper/723:48:417
338087799140,1cyclictest0-21swapper/723:28:417
3380872991413,1cyclictest841rcuc/600:03:376
3380872991413,1cyclictest0-21swapper/622:08:416
3380872991413,1cyclictest0-21swapper/622:08:416
3380872991412,2cyclictest4004075-21kworker/u16:4+events_unbound00:36:396
3380872991412,2cyclictest3713371-21kworker/u16:3+events_unbound23:50:476
3380872991412,2cyclictest3713371-21kworker/u16:3+events_unbound22:54:246
3380872991412,2cyclictest3548617-21kworker/u16:2+events_unbound20:48:046
3380872991412,2cyclictest3413602-21kworker/u16:3+events_unbound19:59:126
3380872991412,2cyclictest3413602-21kworker/u16:3+events_unbound19:32:576
3380872991411,2cyclictest3618298-21cut21:08:366
3380868991413,1cyclictest0-21swapper/521:48:425
3380868991412,2cyclictest3829976-21kworker/u16:2+events_unbound23:14:285
3380868991412,2cyclictest3713371-21kworker/u16:3+flush-8:022:23:335
3380863991413,1cyclictest0-21swapper/423:43:324
3380863991413,1cyclictest0-21swapper/423:43:324
3380863991413,1cyclictest0-21swapper/422:28:394
3380863991413,1cyclictest0-21swapper/400:28:474
338086399140,1cyclictest0-21swapper/420:13:234
338086399140,14cyclictest0-21swapper/422:38:354
338086399140,14cyclictest0-21swapper/419:39:484
338087799139,3cyclictest1267-21snmpd20:57:117
338087799139,3cyclictest1267-21snmpd19:58:467
338087799139,3cyclictest1267-21snmpd00:16:187
338087799139,3cyclictest1267-21snmpd00:12:067
338087799137,5cyclictest3800905-21latency_hist22:43:187
3380877991312,0cyclictest0-21swapper/721:48:357
3380877991312,0cyclictest0-21swapper/721:43:287
3380877991310,2cyclictest0-21swapper/721:23:187
338087799130,12cyclictest3682043-21kthreadcore21:38:397
3380872991312,1cyclictest0-21swapper/600:13:336
3380872991311,2cyclictest3926396-21kworker/u16:4+events_unbound23:59:396
3380872991311,2cyclictest3848973-21kworker/u16:4+events_unbound23:04:326
3380872991311,2cyclictest3790229-21kworker/u16:0+events_unbound23:34:366
3380872991311,2cyclictest3752860-21kworker/u16:4+events_unbound22:39:556
3380872991311,2cyclictest3723069-21kworker/u16:4+events_unbound22:05:526
3380872991311,2cyclictest3626199-21kworker/u16:0+events_unbound21:27:326
3380872991311,2cyclictest3548617-21kworker/u16:2+events_unbound20:41:486
3380872991311,2cyclictest3538309-21kworker/u16:4+events_unbound20:34:586
3380872991311,2cyclictest3538309-21kworker/u16:4+events_unbound20:34:586
3380872991311,2cyclictest3370228-21kworker/u16:2+events_unbound19:26:076
3380872991311,1cyclictest3926109-21grep23:43:456
3380872991311,1cyclictest3926109-21grep23:43:456
3380872991310,2cyclictest3510833-21tr20:13:316
338086899139,3cyclictest3381865-21cat19:08:345
3380868991311,2cyclictest3829976-21kworker/u16:2+flush-8:023:08:135
3380868991311,2cyclictest3790229-21kworker/u16:0+events_unbound23:43:455
3380868991311,2cyclictest3790229-21kworker/u16:0+events_unbound23:43:455
3380868991311,2cyclictest3646007-21kworker/u16:1+flush-8:021:34:005
3380868991311,2cyclictest3548617-21kworker/u16:2+flush-8:020:33:325
3380868991311,2cyclictest3548617-21kworker/u16:2+flush-8:020:33:325
3380868991311,2cyclictest3509455-21kworker/u16:1+flush-8:021:03:375
3380868991310,2cyclictest3752860-21kworker/u16:4+flush-8:022:28:385
3380868991310,2cyclictest3413602-21kworker/u16:3+flush-8:019:33:195
3380863991312,1cyclictest0-21swapper/423:50:384
3380863991312,1cyclictest0-21swapper/421:21:294
3380863991312,1cyclictest0-21swapper/420:49:294
3380863991312,1cyclictest0-21swapper/420:25:504
3380863991312,1cyclictest0-21swapper/419:34:554
3380863991312,1cyclictest0-21swapper/400:02:274
338086399130,13cyclictest0-21swapper/422:12:344
338086399130,13cyclictest0-21swapper/422:12:344
338087799129,2cyclictest5756-21JS21:50:157
338087799129,2cyclictest1267-21snmpd20:13:347
338087799128,3cyclictest1267-21snmpd23:48:067
338087799128,3cyclictest1267-21snmpd23:48:067
338087799128,3cyclictest1267-21snmpd22:46:387
338087799128,3cyclictest1267-21snmpd22:00:317
338087799128,3cyclictest1267-21snmpd20:35:447
338087799128,3cyclictest1267-21snmpd20:35:447
338087799128,3cyclictest1267-21snmpd20:09:107
338087799128,3cyclictest1267-21snmpd00:28:557
338087799128,3cyclictest0-21swapper/720:23:507
338087799126,5cyclictest3888011-21latency_hist23:28:187
338087799126,5cyclictest3764578-21kthreadcore22:23:367
338087799125,6cyclictest0-21swapper/721:06:167
3380877991211,0cyclictest0-21swapper/719:23:347
338087799120,4cyclictest3618173-21irqcore21:08:357
338087799120,10cyclictest3664430-21ntp_states21:28:437
338087299125,2cyclictest86-21ksoftirqd/620:03:326
338087299124,5cyclictest86-21ksoftirqd/619:38:316
338087299124,2cyclictest86-21ksoftirqd/622:13:376
3380872991211,1cyclictest3850547-21sed23:08:346
3380872991211,1cyclictest3771359-21sed22:23:476
3380872991210,2cyclictest3829976-21kworker/u16:2+events_unbound23:21:156
3380872991210,2cyclictest3538309-21kworker/u16:4+events_unbound21:20:206
3380872991210,2cyclictest3370228-21kworker/u16:2+events_unbound19:18:216
3380872991210,1cyclictest3881078-21cut23:23:356
3380868991210,2cyclictest3790229-21kworker/u16:0+events_unbound23:23:205
3380868991210,2cyclictest3674200-21kworker/u16:5+flush-8:021:48:145
3380868991210,2cyclictest3509455-21kworker/u16:1+flush-8:020:44:175
3380863991211,1cyclictest0-21swapper/423:57:434
3380863991211,1cyclictest0-21swapper/423:41:584
3380863991211,1cyclictest0-21swapper/423:20:314
3380863991211,1cyclictest0-21swapper/423:03:114
3380863991211,1cyclictest0-21swapper/422:43:284
3380863991211,1cyclictest0-21swapper/422:15:154
3380863991211,1cyclictest0-21swapper/421:53:494
3380863991211,1cyclictest0-21swapper/419:59:244
3380863991211,1cyclictest0-21swapper/419:24:594
3380863991211,1cyclictest0-21swapper/419:14:164
3380863991211,1cyclictest0-21swapper/419:09:044
3380863991211,1cyclictest0-21swapper/400:23:544
3380863991211,1cyclictest0-21swapper/400:14:174
338086399120,1cyclictest0-21swapper/421:08:054
338086399120,1cyclictest0-21swapper/400:09:334
338086399120,12cyclictest0-21swapper/421:37:534
338086399120,12cyclictest0-21swapper/420:32:284
338086399120,12cyclictest0-21swapper/420:10:234
338086399120,12cyclictest0-21swapper/400:34:184
338086399120,0cyclictest0-21swapper/422:26:174
338087799117,3cyclictest3753715-21irqcore22:18:357
338087799117,3cyclictest1267-21snmpd23:16:597
338087799117,3cyclictest1267-21snmpd20:19:107
338087799116,4cyclictest1267-21snmpd00:34:227
338087799114,6cyclictest901-21avahi-daemon21:53:427
338087799113,7cyclictest0-21swapper/722:29:327
338087799111,2cyclictest0-21swapper/720:58:317
338087799110,4cyclictest3953662-21kthreadcore23:58:387
338087799110,10cyclictest3936774-21/usr/sbin/munin23:53:437
338087799110,10cyclictest3791334-21latency_hist22:38:187
338087299118,2cyclictest3896734-21ntpq23:28:426
3380872991110,1cyclictest3708340-21kthreadcore21:53:376
3380872991110,1cyclictest0-21swapper/620:08:386
338086899119,2cyclictest3790229-21kworker/u16:0+flush-8:023:18:455
338086899119,2cyclictest3752860-21kworker/u16:4+events_unbound22:43:375
338086899119,2cyclictest3674200-21kworker/u16:5+flush-8:021:54:045
338086899119,2cyclictest3413602-21kworker/u16:3+flush-8:019:48:445
338086899119,2cyclictest3333864-21kworker/u16:1+events_unbound19:21:295
3380868991110,1cyclictest0-21swapper/523:08:255
3380868991110,1cyclictest0-21swapper/500:03:175
338086899110,11cyclictest0-21swapper/523:33:295
338086899110,11cyclictest0-21swapper/520:52:505
338086899110,11cyclictest0-21swapper/520:31:335
338086899110,11cyclictest0-21swapper/520:28:055
338086899110,11cyclictest0-21swapper/520:04:555
3380863991110,1cyclictest0-21swapper/423:27:184
3380863991110,1cyclictest0-21swapper/422:55:374
3380863991110,1cyclictest0-21swapper/422:53:154
3380863991110,1cyclictest0-21swapper/422:33:324
3380863991110,1cyclictest0-21swapper/421:51:174
3380863991110,1cyclictest0-21swapper/421:10:374
3380863991110,1cyclictest0-21swapper/421:00:034
3380863991110,1cyclictest0-21swapper/420:22:414
3380863991110,1cyclictest0-21swapper/400:21:324
338087799107,2cyclictest0-21swapper/723:33:307
338087799106,3cyclictest6450-21gmain19:08:317
338087799105,4cyclictest96-21ksoftirqd/720:03:407
338087799103,6cyclictest0-21swapper/719:18:567
338087799100,9cyclictest0-21swapper/722:13:357
338086399109,1cyclictest0-21swapper/423:29:304
338086399109,1cyclictest0-21swapper/421:24:104
338086399109,1cyclictest0-21swapper/419:49:354
338086399109,1cyclictest0-21swapper/400:07:114
33808689998,1cyclictest0-21swapper/520:11:135
33808689997,2cyclictest3413602-21kworker/u16:3+events_unbound19:58:475
33808689997,2cyclictest2529822-21kworker/u16:4+flush-8:019:48:135
33808689994,4cyclictest3977716-21cut00:13:375
33808639998,1cyclictest0-21swapper/423:13:164
33808639998,1cyclictest0-21swapper/421:45:564
33808639998,1cyclictest0-21swapper/420:04:244
33808639998,1cyclictest0-21swapper/419:44:324
33808689986,2cyclictest3790229-21kworker/u16:0+events_unbound23:38:325
33808689986,1cyclictest0-21swapper/500:18:365
33808689985,2cyclictest0-21swapper/500:03:375
33808639987,1cyclictest0-21swapper/423:15:474
33808639987,1cyclictest0-21swapper/421:59:014
33808639987,1cyclictest0-21swapper/421:43:154
33808639985,2cyclictest0-21swapper/423:33:384
33808639984,3cyclictest3559430-21cstates20:38:304
33808639984,3cyclictest3549938-21fschecks_count20:33:324
33808639984,3cyclictest3549938-21fschecks_count20:33:324
33808639983,4cyclictest3588683-21fschecks_count20:53:324
33808639980,7cyclictest3731839-21kthreadcore22:03:394
33808689974,2cyclictest3676238-21irqcore21:38:355
33808639973,3cyclictest3569572-21ip_192.168.115.20:43:334
33808639973,3cyclictest3472082-21grep19:53:304
33808639972,4cyclictest3752895-21cpu22:18:304
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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