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2026-05-13 - 16:58
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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 Wed May 13, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41503772660,0sleep60-21swapper/611:43:356
3529332995350,2cyclictest3640386-21kworker/u16:4+flush-8:008:18:314
352902025343,7sleep40-21swapper/407:08:004
3529337994947,2cyclictest3619693-21kworker/u16:3+flush-8:008:03:205
3529332994846,2cyclictest3735231-21kworker/u16:1+flush-8:010:43:214
3529332994846,2cyclictest3590327-21kworker/u16:2+events_unbound10:53:324
3529332994442,2cyclictest54808-21kworker/u16:4+flush-8:012:28:314
3529332994441,2cyclictest4139905-21kworker/u16:1+flush-8:011:43:194
3529332994441,2cyclictest3590327-21kworker/u16:2+flush-8:009:48:074
3529332994341,2cyclictest3958351-21kworker/u16:3+events_unbound11:33:404
3529337994240,2cyclictest3763845-21kworker/u16:4+events_unbound09:13:315
3529332994139,2cyclictest4111123-21kworker/u16:4+flush-8:012:03:354
35287172416,30sleep70-21swapper/707:03:457
3529332994038,2cyclictest4111123-21kworker/u16:4+events_unbound11:50:154
3529332994038,2cyclictest3735231-21kworker/u16:1+events_unbound09:22:284
3529332993937,2cyclictest3590327-21kworker/u16:2+events_unbound10:43:034
3529332993937,2cyclictest32020-21kworker/u16:2+events_unbound12:18:234
3529332993937,2cyclictest32020-21kworker/u16:2+events_unbound12:18:234
3529332993936,2cyclictest54808-21kworker/u16:4+events_unbound12:33:384
3529332993936,2cyclictest4153428-21kworker/u16:3+events_unbound11:58:084
3529332993836,2cyclictest3590327-21kworker/u16:2+events_unbound11:23:074
3529332993835,2cyclictest3735231-21kworker/u16:1+events_unbound11:18:334
3529332993735,2cyclictest4030756-21kworker/u16:4+events_unbound11:05:514
3529332993734,2cyclictest54808-21kworker/u16:4+events_unbound12:27:444
3529332993734,2cyclictest3958351-21kworker/u16:3+flush-8:010:31:074
352934599360,34cyclictest827-21dbus-daemon12:18:057
3529332993634,2cyclictest7553-21kworker/u16:0+events_unbound12:17:314
3529332993634,2cyclictest4111123-21kworker/u16:4+flush-8:012:08:314
3529332993633,2cyclictest4030756-21kworker/u16:4+events_unbound10:58:084
3529332993633,2cyclictest3763845-21kworker/u16:4+events_unbound09:36:564
3529332993633,2cyclictest3590327-21kworker/u16:2+events_unbound09:28:084
3529332993533,2cyclictest3735231-21kworker/u16:1+events_unbound09:56:074
3529332993532,2cyclictest3958351-21kworker/u16:3+events_unbound10:36:284
3529341993431,2cyclictest3735231-21kworker/u16:1+events_unbound10:23:196
3529332993432,2cyclictest3763845-21kworker/u16:4+events_unbound09:41:374
352872723423,8sleep60-21swapper/607:03:526
352934599330,31cyclictest3735001-21latency_hist08:53:067
3529337993331,2cyclictest3590327-21kworker/u16:2+events_unbound10:28:305
3529332993331,2cyclictest4153428-21kworker/u16:3+flush-8:011:56:074
3529332993331,2cyclictest4103126-21kworker/u16:0+events_unbound11:28:244
3529332993331,2cyclictest3763846-21kworker/u16:5+events_unbound10:10:234
3529332993331,2cyclictest3763845-21kworker/u16:4+flush-8:009:43:514
3529332993330,2cyclictest3763845-21kworker/u16:4+events_unbound09:24:124
352934599320,30cyclictest4019548-21latency_hist10:53:057
352874423222,7sleep50-21swapper/507:04:075
3529345993126,4cyclictest3849173-21latency_hist09:43:067
3529332993129,2cyclictest3763846-21kworker/u16:5+events_unbound10:00:274
3529332993129,2cyclictest3590327-21kworker/u16:2+events_unbound11:10:114
3529332993129,2cyclictest3590327-21kworker/u16:2+events_unbound10:48:354
38684682300,1chrt0-21swapper/509:48:255
352934599300,28cyclictest4180415-21cut11:58:237
3529337993028,2cyclictest3590327-21kworker/u16:2+events_unbound10:58:355
3529332993028,2cyclictest3590327-21kworker/u16:2+events_unbound10:23:074
3529332993027,2cyclictest4111123-21kworker/u16:4+events_unbound11:40:074
3529332992927,2cyclictest3763845-21kworker/u16:4+events_unbound09:17:514
3529332992927,2cyclictest3590327-21kworker/u16:2+events_unbound10:16:324
3529332992927,2cyclictest3590327-21kworker/u16:2+events_unbound10:07:314
3529332992926,2cyclictest3715414-21kworker/u16:3+flush-8:008:48:064
3529345992827,0cyclictest0-21swapper/707:18:367
3529332992826,2cyclictest3763845-21kworker/u16:4+events_unbound09:09:194
3529337992722,2cyclictest4030756-21kworker/u16:4+events_unbound11:03:195
3529332992726,1cyclictest3763846-21kworker/u16:5+events_unbound10:20:114
3529345992523,1cyclictest0-21swapper/710:58:267
3529337992523,2cyclictest3735231-21kworker/u16:1+events_unbound10:48:205
3529332992523,2cyclictest3590327-21kworker/u16:2+events_unbound07:51:164
3529332992523,2cyclictest3519509-21kworker/u16:0+events_unbound07:20:164
3529337992422,2cyclictest3735231-21kworker/u16:1+events_unbound10:57:485
3529337992422,2cyclictest3590327-21kworker/u16:2+flush-8:008:58:275
3529337992422,2cyclictest3590327-21kworker/u16:2+flush-8:008:58:275
3529332992422,2cyclictest3735231-21kworker/u16:1+events_unbound11:16:364
3529332992422,2cyclictest3590327-21kworker/u16:2+events_unbound07:37:164
3529345992321,1cyclictest3629258-21cat07:58:077
3529341992321,2cyclictest3519509-21kworker/u16:0+flush-8:007:18:216
3529337992321,2cyclictest4111123-21kworker/u16:4+events_unbound12:14:155
3529337992321,2cyclictest3735231-21kworker/u16:1+events_unbound11:08:225
3529337992321,2cyclictest3590327-21kworker/u16:2+flush-8:008:43:365
3529332992321,2cyclictest3697387-21kworker/u16:0+flush-8:009:04:154
3529332992321,2cyclictest3590327-21kworker/u16:2+events_unbound08:40:174
3529337992220,2cyclictest3958351-21kworker/u16:3+events_unbound11:30:405
3529337992220,2cyclictest3763845-21kworker/u16:4+events_unbound09:41:165
3529337992220,2cyclictest3590327-21kworker/u16:2+flush-8:009:43:335
3529337992220,2cyclictest3590327-21kworker/u16:2+events_unbound09:36:275
3529337992220,2cyclictest32020-21kworker/u16:2+events_unbound12:28:295
3529337992220,2cyclictest2817776-21kworker/u16:5+flush-8:007:28:215
435852210,1chrt43586-21ssh12:20:227
435852210,1chrt43586-21ssh12:20:227
41576842210,1chrt4157686-21kthreadcore11:48:257
3529345992117,3cyclictest3883217-21sh09:53:357
3529341992119,2cyclictest4111123-21kworker/u16:4+flush-8:012:08:326
3529341992119,2cyclictest2817776-21kworker/u16:5+flush-8:007:13:126
3529341992118,3cyclictest3590327-21kworker/u16:2+flush-8:008:58:316
3529341992118,3cyclictest3590327-21kworker/u16:2+flush-8:008:58:316
3529337992119,2cyclictest4030756-21kworker/u16:4+events_unbound11:13:365
3529337992119,2cyclictest3590327-21kworker/u16:2+flush-8:010:33:515
3529337992119,2cyclictest32020-21kworker/u16:2+events_unbound12:36:165
3529337992118,2cyclictest3590327-21kworker/u16:2+flush-8:009:18:155
3529337992117,2cyclictest4153428-21kworker/u16:3+events_unbound11:48:185
3529332992119,2cyclictest3668061-21kworker/u16:1+flush-8:008:28:354
3529332992119,2cyclictest3519509-21kworker/u16:0+flush-8:007:53:164
3529332992119,2cyclictest3519509-21kworker/u16:0+flush-8:007:10:154
3529332992119,2cyclictest3519509-21kworker/u16:0+events_unbound07:47:164
3529345992019,0cyclictest0-21swapper/711:13:277
3529341992018,2cyclictest3640386-21kworker/u16:4+events_unbound08:23:216
3529337992018,2cyclictest54808-21kworker/u16:4+events_unbound12:26:595
3529337992018,2cyclictest4103126-21kworker/u16:0+events_unbound11:47:195
3529337992018,2cyclictest4103126-21kworker/u16:0+events_unbound11:25:515
3529337992018,2cyclictest3958351-21kworker/u16:3+events_unbound11:34:235
3529337992018,2cyclictest3763845-21kworker/u16:4+events_unbound09:12:245
3529337992018,2cyclictest3735231-21kworker/u16:1+events_unbound10:24:045
3529337992018,2cyclictest3697387-21kworker/u16:0+events_unbound08:57:555
3529337992018,2cyclictest3590327-21kworker/u16:2+events_unbound09:59:405
3529337992018,2cyclictest3546795-21kworker/u16:1+events_unbound07:13:295
3529332992018,2cyclictest3735231-21kworker/u16:1+events_unbound09:00:174
3529332992018,2cyclictest3735231-21kworker/u16:1+events_unbound09:00:174
3529332992018,2cyclictest3668061-21kworker/u16:1+events_unbound08:33:294
3529332992018,2cyclictest3590327-21kworker/u16:2+events_unbound07:38:074
3529332992018,2cyclictest3519509-21kworker/u16:0+events_unbound08:17:454
3529332992018,2cyclictest3519509-21kworker/u16:0+events_unbound08:17:454
3529332992018,2cyclictest3519509-21kworker/u16:0+events_unbound08:10:164
3529337991917,2cyclictest4153428-21kworker/u16:3+events_unbound12:10:115
3529337991917,2cyclictest4111123-21kworker/u16:4+events_unbound11:42:365
3529337991917,2cyclictest3763846-21kworker/u16:5+events_unbound10:21:085
3529337991917,2cyclictest3715414-21kworker/u16:3+events_unbound08:48:325
3529337991917,2cyclictest3519509-21kworker/u16:0+flush-8:007:38:335
3529337991917,2cyclictest3519509-21kworker/u16:0+events_unbound07:58:265
3529337991916,2cyclictest32020-21kworker/u16:2+flush-8:012:18:085
3529337991916,2cyclictest32020-21kworker/u16:2+flush-8:012:18:085
352934599180,16cyclictest3648422-21latency_hist08:08:067
3529341991816,2cyclictest3590327-21kworker/u16:2+events_unbound07:48:226
3529337991816,2cyclictest3958351-21kworker/u16:3+events_unbound10:38:285
3529337991816,2cyclictest3763846-21kworker/u16:5+events_unbound10:03:275
3529337991816,2cyclictest3735231-21kworker/u16:1+events_unbound10:45:365
3529337991816,2cyclictest3735231-21kworker/u16:1+events_unbound10:13:505
3529337991816,2cyclictest3735231-21kworker/u16:1+events_unbound09:23:355
3529337991816,2cyclictest3590327-21kworker/u16:2+events_unbound09:03:315
3529345991715,1cyclictest0-21swapper/709:13:197
3529345991713,3cyclictest1234-21snmpd08:42:167
3529345991713,2cyclictest1028299-21kworker/7:1+events_power_efficient09:03:067
3529345991713,2cyclictest1028299-21kworker/7:1+events_power_efficient09:03:067
352934599170,16cyclictest0-21swapper/709:03:277
3529341991714,2cyclictest3590327-21kworker/u16:2+flush-8:007:38:236
3529337991715,2cyclictest7553-21kworker/u16:0+events_unbound12:06:245
3529337991715,2cyclictest4103126-21kworker/u16:0+events_unbound11:54:435
3529337991715,2cyclictest3590327-21kworker/u16:2+events_unbound09:54:255
3529337991714,2cyclictest3519509-21kworker/u16:0+flush-8:008:13:165
3529337991714,2cyclictest3519509-21kworker/u16:0+flush-8:008:13:165
3529332991715,2cyclictest3638487-21kworker/u16:1+events_unbound08:02:154
3529332991715,2cyclictest3481099-21kworker/u16:3+flush-8:007:17:154
3529345991615,0cyclictest0-21swapper/710:28:217
3529345991615,0cyclictest0-21swapper/708:33:217
3529345991613,2cyclictest1234-21snmpd10:05:547
352934599160,14cyclictest635-21systemd-journal11:28:067
3529337991614,2cyclictest4153428-21kworker/u16:3+events_unbound11:58:185
3529337991614,2cyclictest4030756-21kworker/u16:4+flush-8:011:19:035
3529337991614,2cyclictest3763846-21kworker/u16:5+events_unbound10:11:475
3529337991614,2cyclictest3763845-21kworker/u16:4+flush-8:009:28:505
3529332991614,2cyclictest3697387-21kworker/u16:0+events_unbound08:54:164
3529345991514,0cyclictest0-21swapper/709:48:227
3529345991514,0cyclictest0-21swapper/709:23:377
3529345991514,0cyclictest0-21swapper/709:12:247
3529345991513,1cyclictest0-21swapper/710:23:287
3529345991512,2cyclictest3658080-21perf08:13:067
3529345991512,2cyclictest1234-21snmpd12:04:487
3529341991512,3cyclictest3735231-21kworker/u16:1+flush-8:008:53:326
3529337991513,2cyclictest3590327-21kworker/u16:2+events_unbound07:36:175
3529332991513,2cyclictest3640386-21kworker/u16:4+events_unbound08:07:454
352934599148,5cyclictest3538804-21latency_hist07:13:067
3529345991413,0cyclictest0-21swapper/707:33:227
3529345991412,1cyclictest0-21swapper/711:03:307
3529345991411,2cyclictest3996558-21ssh10:43:237
3529345991411,2cyclictest0-21swapper/709:58:347
3529345991410,3cyclictest71847-21kthreadcore12:33:247
3529341991413,1cyclictest0-21swapper/612:25:466
3529341991413,1cyclictest0-21swapper/609:22:346
3529341991412,2cyclictest3763846-21kworker/u16:5+events_unbound10:03:216
3529341991412,2cyclictest3735231-21kworker/u16:1+flush-8:009:28:326
3529341991412,1cyclictest3765578-21ps09:08:236
3529341991410,3cyclictest3735231-21kworker/u16:1+flush-8:010:18:196
352934199140,1cyclictest0-21swapper/612:02:456
352934199140,1cyclictest0-21swapper/611:29:196
352934199140,1cyclictest0-21swapper/609:51:346
352934199140,14cyclictest0-21swapper/610:46:176
352934199140,14cyclictest0-21swapper/610:34:096
3529337991413,1cyclictest0-21swapper/508:28:255
3529337991413,1cyclictest0-21swapper/507:18:195
352934599139,3cyclictest1234-21snmpd12:25:287
352934599138,4cyclictest635-21systemd-journal07:43:077
352934599138,4cyclictest3581058-21latency_hist07:33:067
352934599137,5cyclictest4177680-21latency_hist11:58:067
3529345991312,0cyclictest0-21swapper/711:27:217
352934599130,11cyclictest0-21swapper/707:58:317
352934199139,3cyclictest3590327-21kworker/u16:2+flush-8:010:18:066
3529341991312,1cyclictest0-21swapper/611:13:246
3529341991312,1cyclictest0-21swapper/609:35:206
352934199130,4cyclictest3779377-21grep09:13:246
3529337991311,2cyclictest2817776-21kworker/u16:5+events_unbound07:23:295
352934599129,2cyclictest124-21kswapd010:53:187
352934599128,3cyclictest1234-21snmpd12:28:317
352934599128,3cyclictest1234-21snmpd10:13:157
352934599128,3cyclictest1234-21snmpd08:44:347
352934599127,4cyclictest3922317-21latency_hist10:13:057
352934599126,5cyclictest6382-21gvfs-afc-volume11:46:087
352934599126,5cyclictest6382-21gvfs-afc-volume10:34:297
3529345991210,1cyclictest3813868-21ssh09:28:207
3529345991210,1cyclictest0-21swapper/712:08:227
352934599120,11cyclictest1234-21snmpd11:09:267
352934599120,10cyclictest3617156-21cut07:48:277
352934199127,4cyclictest4010508-21kthreadcore10:48:226
3529341991210,2cyclictest3519509-21kworker/u16:0+flush-8:008:08:216
3529341991210,1cyclictest0-21swapper/610:58:256
352934199120,12cyclictest0-21swapper/608:46:476
3529332991210,2cyclictest3640386-21kworker/u16:4+events_unbound08:25:364
352934599118,2cyclictest1234-21snmpd09:22:267
352934599118,2cyclictest1234-21snmpd08:54:447
352934599118,2cyclictest1234-21snmpd07:16:057
352934599118,2cyclictest0-21swapper/710:18:237
352934599118,2cyclictest0-21swapper/709:33:327
352934599117,3cyclictest1234-21snmpd09:44:337
352934599116,5cyclictest6382-21gvfs-afc-volume10:42:187
352934599116,5cyclictest6382-21gvfs-afc-volume08:18:267
352934599115,5cyclictest6382-21gvfs-afc-volume11:20:017
352934599115,4cyclictest3564924-21grep07:23:247
352934599110,9cyclictest3598873-21grep07:38:277
352934599110,10cyclictest4121789-21cut11:33:277
352934599110,10cyclictest1234-21snmpd08:26:227
352934199119,2cyclictest86-21ksoftirqd/609:43:216
352934199112,3cyclictest4048120-21kthreadcore11:03:236
352934199112,3cyclictest3917444-21kthreadcore10:08:256
3529341991110,1cyclictest0-21swapper/610:03:056
352934199110,4cyclictest3700126-21kthreadcore08:33:226
352934199110,3cyclictest3986553-21kthreadcore10:38:236
352933799119,2cyclictest3590327-21kworker/u16:2+flush-8:008:38:345
352933799119,2cyclictest3590327-21kworker/u16:2+events_unbound08:35:525
352933799119,2cyclictest3590327-21kworker/u16:2+events_unbound07:52:195
352933799119,1cyclictest3537838-21ntp_kernel_pll_07:08:315
352933799115,2cyclictest3650337-21grep08:08:235
3529337991110,1cyclictest3601915-21irqstats07:43:215
352933299110,11cyclictest0-21swapper/407:25:214
352934599107,2cyclictest1234-21snmpd08:14:197
352934599107,2cyclictest1234-21snmpd08:14:197
352934599104,4cyclictest4129879-21cat11:38:177
352934199108,2cyclictest86-21ksoftirqd/611:48:456
352934199108,2cyclictest86-21ksoftirqd/611:27:126
352934199108,2cyclictest86-21ksoftirqd/609:38:156
352934199105,4cyclictest3804510-21grep09:23:236
352934199100,9cyclictest4057694-21ps11:08:246
352934199100,9cyclictest3963296-21grep10:28:246
352934199100,4cyclictest3673629-21kthreadcore08:18:266
352934199100,4cyclictest3600714-21/usr/sbin/munin07:43:176
352934199100,4cyclictest3571872-21/usr/sbin/munin07:28:206
352934199100,2cyclictest3756807-21tr09:03:216
352933799108,2cyclictest3668061-21kworker/u16:1+events_unbound08:27:165
352933799108,2cyclictest3590327-21kworker/u16:2+events_unbound07:55:155
352933299108,2cyclictest3571863-21kworker/u16:1+events_unbound07:31:204
35293459994,4cyclictest3696742-21cat08:33:067
35293419997,2cyclictest86-21ksoftirqd/612:34:496
35293419997,2cyclictest86-21ksoftirqd/612:13:326
35293419997,2cyclictest86-21ksoftirqd/612:05:596
35293419997,2cyclictest86-21ksoftirqd/611:33:096
35293419997,2cyclictest86-21ksoftirqd/611:18:316
35293419997,2cyclictest86-21ksoftirqd/610:55:316
35293419995,3cyclictest3639934-21cat08:03:206
35293419990,8cyclictest3874512-21cat09:53:196
35293419990,8cyclictest3529684-21cut07:08:196
35293419990,8cyclictest0-21swapper/608:13:266
35293419990,8cyclictest0-21swapper/608:13:266
35293419990,1cyclictest0-21swapper/612:28:316
35293379997,1cyclictest0-21swapper/508:18:275
35293419986,2cyclictest86-21ksoftirqd/612:18:086
35293419986,2cyclictest86-21ksoftirqd/612:18:086
35293419986,2cyclictest86-21ksoftirqd/611:39:366
35293419985,2cyclictest0-21swapper/607:23:286
35293419983,4cyclictest3630538-21sed07:58:236
35293419980,7cyclictest3707234-21hddtemp_smartct08:38:216
35293419980,7cyclictest0-21swapper/608:28:196
35293419980,1cyclictest0-21swapper/607:53:256
35293329984,3cyclictest3724997-21unixbench_singl08:43:354
35293419976,1cyclictest0-21swapper/607:33:206
35293419975,2cyclictest86-21ksoftirqd/611:53:076
35293419974,2cyclictest3726359-21fschecks_count08:48:206
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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