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2025-12-28 - 03:41
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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 all highest latencies:
System rack0slot2.osadl.org (updated Sun Dec 28, 2025 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6484052920,1sleep7648402-21irqcore22:19:187
27367025747,7sleep60-21swapper/619:05:196
26442725520,29sleep70-21swapper/719:03:597
27378125040,7sleep50-21swapper/519:06:545
27369524634,8sleep40-21swapper/419:05:414
274223994340,2cyclictest714600-21kworker/u16:0+events_unbound23:19:124
274223994037,2cyclictest268849-21kworker/u16:2+events_unbound19:34:004
274236993938,0cyclictest0-21swapper/721:59:167
274223993936,2cyclictest726217-21kworker/u16:2+events_unbound23:34:114
274223993936,2cyclictest256244-21kworker/u16:4+events_unbound20:14:134
274227993735,2cyclictest268849-21kworker/u16:2+flush-8:019:18:585
274223993735,2cyclictest306713-21kworker/u16:1+events_unbound22:14:274
274223993633,2cyclictest306713-21kworker/u16:1+flush-8:019:29:134
274223993532,2cyclictest306713-21kworker/u16:1+events_unbound21:39:124
274223993532,2cyclictest306713-21kworker/u16:1+events_unbound21:39:124
274231993431,2cyclictest666496-21kworker/u16:0+flush-8:022:29:286
274231993431,2cyclictest666496-21kworker/u16:0+flush-8:022:29:286
274227993432,2cyclictest860749-21kworker/u16:3+flush-8:000:24:235
274223993432,2cyclictest256244-21kworker/u16:4+events_unbound19:59:324
7883922330,1chrt0-21swapper/523:29:185
274236993328,4cyclictest510916-21latency_hist21:08:587
274236993327,5cyclictest724624-21latency_hist22:58:587
274227993331,2cyclictest726217-21kworker/u16:2+events_unbound23:04:155
274227993330,2cyclictest802427-21kworker/u16:0+events_unbound23:39:005
274223993331,2cyclictest306713-21kworker/u16:1+flush-8:022:19:284
274223993330,2cyclictest735558-21kworker/u16:4+events_unbound23:43:594
274236993227,4cyclictest316730-21latency_hist19:28:587
274227993229,2cyclictest306713-21kworker/u16:1+flush-8:020:09:125
274223993229,2cyclictest726217-21kworker/u16:2+events_unbound23:14:154
274223993228,3cyclictest268849-21kworker/u16:2+events_unbound19:44:084
274236993130,0cyclictest0-21swapper/721:54:317
274227993129,2cyclictest381970-21kworker/u16:3+events_unbound20:47:175
274227993129,2cyclictest381970-21kworker/u16:3+events_unbound20:19:205
274227993129,2cyclictest306713-21kworker/u16:1+events_unbound22:03:085
274231993026,3cyclictest587595-21kworker/u16:4+events_unbound22:13:536
274227993028,2cyclictest726217-21kworker/u16:2+events_unbound23:15:175
274227993028,2cyclictest306713-21kworker/u16:1+events_unbound20:57:175
274227993028,2cyclictest268849-21kworker/u16:2+events_unbound20:04:335
274227993028,2cyclictest268849-21kworker/u16:2+events_unbound20:04:335
274223993028,2cyclictest782070-21kworker/u16:3+events_unbound23:29:214
274223993028,2cyclictest210320-21kworker/u16:0+events_unbound19:19:164
274223993027,2cyclictest516403-21kworker/u16:3+events_unbound22:04:154
3519772290,1chrt351978-21kthreadcore19:44:217
274236992928,0cyclictest0-21swapper/722:44:117
274236992928,0cyclictest0-21swapper/719:39:287
274236992928,0cyclictest0-21swapper/700:02:007
274227992927,2cyclictest802427-21kworker/u16:0+events_unbound00:23:165
274227992927,2cyclictest782070-21kworker/u16:3+flush-8:023:34:125
274227992927,2cyclictest549706-21kworker/u16:2+events_unbound22:42:045
274227992927,2cyclictest480770-21kworker/u16:5+events_unbound21:02:085
274227992927,2cyclictest306713-21kworker/u16:1+flush-8:019:34:245
274227992927,2cyclictest306713-21kworker/u16:1+events_unbound20:29:325
274227992927,2cyclictest210320-21kworker/u16:0+flush-8:019:19:325
274223992926,2cyclictest676067-21kworker/u16:3+events_unbound22:39:124
274236992825,2cyclictest803362-21hddtemp_smartct23:39:127
274227992826,2cyclictest714600-21kworker/u16:0+events_unbound23:02:085
274227992826,2cyclictest714600-21kworker/u16:0+events_unbound22:55:095
274227992826,2cyclictest616899-21kworker/u16:6+events_unbound22:08:175
274227992826,2cyclictest516403-21kworker/u16:3+events_unbound21:26:085
274227992826,2cyclictest516403-21kworker/u16:3+events_unbound21:14:235
274223992826,2cyclictest726217-21kworker/u16:2+events_unbound23:24:304
3181402270,1chrt318139-21sed19:29:157
274236992726,0cyclictest0-21swapper/720:37:527
274227992725,2cyclictest802427-21kworker/u16:0+events_unbound00:05:095
274227992725,2cyclictest735558-21kworker/u16:4+flush-8:023:49:265
274227992725,2cyclictest735558-21kworker/u16:4+events_unbound23:44:225
274227992725,2cyclictest666496-21kworker/u16:0+events_unbound22:31:095
274227992725,2cyclictest666496-21kworker/u16:0+events_unbound22:31:095
274227992725,2cyclictest587595-21kworker/u16:4+events_unbound22:21:095
274227992725,2cyclictest306713-21kworker/u16:1+events_unbound22:26:165
274227992725,2cyclictest283553-21kworker/u16:1+events_unbound19:12:105
274227992724,2cyclictest381970-21kworker/u16:3+events_unbound20:34:135
274223992725,2cyclictest306713-21kworker/u16:1+events_unbound20:29:304
274236992625,0cyclictest0-21swapper/721:01:567
274236992625,0cyclictest0-21swapper/700:09:107
274227992624,2cyclictest860749-21kworker/u16:3+events_unbound00:35:095
274227992624,2cyclictest802427-21kworker/u16:0+events_unbound00:09:275
274227992624,2cyclictest549706-21kworker/u16:2+events_unbound22:45:085
274227992624,2cyclictest549706-21kworker/u16:2+events_unbound22:34:155
274227992624,2cyclictest306713-21kworker/u16:1+events_unbound22:18:095
274227992624,2cyclictest256244-21kworker/u16:4+events_unbound20:16:095
274223992624,2cyclictest676067-21kworker/u16:3+events_unbound22:49:314
274223992624,2cyclictest256244-21kworker/u16:4+flush-8:019:24:164
274223992623,2cyclictest578566-21kworker/u16:0+events_unbound21:49:004
274236992524,0cyclictest0-21swapper/723:50:007
274236992524,0cyclictest0-21swapper/719:14:277
274236992524,0cyclictest0-21swapper/700:04:327
274227992523,2cyclictest549706-21kworker/u16:2+flush-8:021:34:245
274227992523,2cyclictest549706-21kworker/u16:2+events_unbound21:31:565
274227992523,2cyclictest480770-21kworker/u16:5+events_unbound21:05:085
274227992523,2cyclictest442630-21kworker/u16:2+flush-8:020:39:265
274223992523,2cyclictest821987-21kworker/u16:1+flush-8:000:04:274
274223992523,2cyclictest549706-21kworker/u16:2+events_unbound21:29:124
274223992523,2cyclictest306713-21kworker/u16:1+events_unbound20:55:164
274223992523,2cyclictest256244-21kworker/u16:4+flush-8:019:54:534
274223992522,2cyclictest256244-21kworker/u16:4+flush-8:020:24:134
274236992423,0cyclictest0-21swapper/723:35:317
274236992423,0cyclictest0-21swapper/722:49:597
274236992423,0cyclictest0-21swapper/721:49:417
274231992421,3cyclictest802427-21kworker/u16:0+flush-8:000:24:236
274227992422,2cyclictest860749-21kworker/u16:3+events_unbound00:18:115
274227992422,2cyclictest578566-21kworker/u16:0+events_unbound21:54:275
274227992422,2cyclictest480770-21kworker/u16:5+events_unbound21:12:495
274227992422,2cyclictest306713-21kworker/u16:1+flush-8:021:20:165
274227992422,2cyclictest306713-21kworker/u16:1+events_unbound19:49:285
274223992422,2cyclictest899376-21kworker/u16:1+events_unbound00:29:114
274223992422,2cyclictest549706-21kworker/u16:2+events_unbound21:59:204
274223992422,2cyclictest381970-21kworker/u16:3+events_unbound20:04:234
274223992422,2cyclictest381970-21kworker/u16:3+events_unbound20:04:234
274223992422,2cyclictest306713-21kworker/u16:1+events_unbound20:49:204
274236992322,0cyclictest0-21swapper/723:27:577
274236992322,0cyclictest0-21swapper/723:14:327
274236992322,0cyclictest0-21swapper/722:10:187
274236992322,0cyclictest0-21swapper/720:41:567
274236992322,0cyclictest0-21swapper/700:16:047
274227992321,2cyclictest821988-21kworker/u16:3+flush-8:023:54:135
274227992321,2cyclictest549706-21kworker/u16:2+events_unbound21:49:285
274227992321,2cyclictest318355-21kworker/u16:3+flush-8:019:44:325
274227992321,2cyclictest256244-21kworker/u16:4+events_unbound19:55:085
274223992321,2cyclictest587595-21kworker/u16:4+flush-8:022:24:254
274223992321,2cyclictest256244-21kworker/u16:4+events_unbound19:18:084
274223992319,3cyclictest841384-21kworker/u16:2+flush-8:000:19:074
274236992221,0cyclictest0-21swapper/721:38:047
274236992221,0cyclictest0-21swapper/719:21:377
27423699220,20cyclictest639195-21grep22:14:167
274227992220,2cyclictest676067-21kworker/u16:3+events_unbound22:49:245
274227992220,2cyclictest306713-21kworker/u16:1+events_unbound23:09:185
274223992220,2cyclictest578566-21kworker/u16:0+events_unbound21:47:174
274223992220,2cyclictest549706-21kworker/u16:2+events_unbound21:55:164
274223992220,2cyclictest394167-21kworker/u16:0+flush-8:020:19:574
274236992120,0cyclictest0-21swapper/720:49:147
274236992119,1cyclictest836181-21kthreadcore23:54:197
274231992118,2cyclictest735558-21kworker/u16:4+flush-8:023:49:286
274227992119,2cyclictest714600-21kworker/u16:0+flush-8:023:19:555
274227992119,2cyclictest268849-21kworker/u16:2+events_unbound19:43:305
274227992119,2cyclictest256244-21kworker/u16:4+events_unbound20:01:165
274223992119,2cyclictest821988-21kworker/u16:3+flush-8:023:49:184
274223992119,2cyclictest802427-21kworker/u16:0+events_unbound23:54:224
274223992119,2cyclictest735558-21kworker/u16:4+flush-8:023:39:184
274223992119,2cyclictest714600-21kworker/u16:0+flush-8:022:59:184
274223992119,2cyclictest666496-21kworker/u16:0+events_unbound22:32:084
274223992119,2cyclictest666496-21kworker/u16:0+events_unbound22:32:084
274223992119,2cyclictest549706-21kworker/u16:2+events_unbound22:44:174
274223992119,2cyclictest394167-21kworker/u16:0+events_unbound20:09:264
274223992118,2cyclictest442630-21kworker/u16:2+flush-8:020:59:084
274223992117,1cyclictest802427-21kworker/u16:0+events_unbound00:24:264
274236992019,0cyclictest0-21swapper/722:37:487
274236992019,0cyclictest0-21swapper/721:45:577
274236992019,0cyclictest0-21swapper/720:01:417
274236992017,2cyclictest908204-21/usr/sbin/munin00:29:227
274227992018,2cyclictest735558-21kworker/u16:4+events_unbound23:26:125
274227992018,2cyclictest578566-21kworker/u16:0+events_unbound21:44:315
274227992018,2cyclictest516403-21kworker/u16:3+events_unbound22:10:095
274227992018,2cyclictest306713-21kworker/u16:1+events_unbound20:49:305
274223992018,2cyclictest549706-21kworker/u16:2+events_unbound21:37:564
274223992018,2cyclictest442630-21kworker/u16:2+events_unbound21:16:084
274223992018,2cyclictest346012-21kworker/u16:0+flush-8:019:49:574
274223992018,2cyclictest306713-21kworker/u16:1+events_unbound20:47:564
274223992017,2cyclictest306713-21kworker/u16:1+flush-8:023:09:074
274236991918,0cyclictest0-21swapper/723:30:207
274236991918,0cyclictest0-21swapper/721:26:187
274236991918,0cyclictest0-21swapper/720:25:127
274236991918,0cyclictest0-21swapper/720:14:227
274236991915,3cyclictest773540-21cat23:23:577
274231991916,2cyclictest210320-21kworker/u16:0+flush-8:019:19:236
274231991915,3cyclictest306713-21kworker/u16:1+flush-8:021:39:146
274231991915,3cyclictest306713-21kworker/u16:1+flush-8:021:39:146
274223991917,2cyclictest442630-21kworker/u16:2+flush-8:021:09:114
274223991916,2cyclictest676067-21kworker/u16:3+events_unbound22:54:234
274236991817,0cyclictest0-21swapper/722:31:587
274236991817,0cyclictest0-21swapper/722:31:587
274236991817,0cyclictest0-21swapper/721:19:297
274236991817,0cyclictest0-21swapper/719:34:417
274236991816,1cyclictest0-21swapper/722:07:137
274236991813,4cyclictest650-21systemd-journal23:08:527
27423699180,16cyclictest464837-21cat20:44:177
274231991816,2cyclictest381970-21kworker/u16:3+flush-8:020:48:526
274227991816,2cyclictest879038-21kworker/u16:5+events_unbound00:33:125
274227991816,2cyclictest268849-21kworker/u16:2+events_unbound19:33:255
274223991816,2cyclictest549706-21kworker/u16:2+events_unbound22:36:084
274223991816,2cyclictest381970-21kworker/u16:3+events_unbound20:39:204
274223991815,2cyclictest318355-21kworker/u16:3+events_unbound19:39:184
274236991717,0cyclictest0-21swapper/719:49:367
274236991716,0cyclictest0-21swapper/722:42:557
274236991714,2cyclictest911490-21kthreadcore00:34:167
274227991715,2cyclictest821987-21kworker/u16:1+events_unbound00:02:215
274227991715,2cyclictest306713-21kworker/u16:1+events_unbound21:43:325
274227991715,2cyclictest306713-21kworker/u16:1+events_unbound21:43:325
274227991714,2cyclictest394167-21kworker/u16:0+flush-8:020:24:185
274223991715,2cyclictest821987-21kworker/u16:1+events_unbound00:02:094
274236991615,0cyclictest0-21swapper/723:45:357
274236991615,0cyclictest0-21swapper/721:31:487
274236991614,1cyclictest889720-21latency_hist00:23:577
274236991614,1cyclictest0-21swapper/720:08:457
274236991614,1cyclictest0-21swapper/720:08:457
274236991612,3cyclictest374147-21ntpq19:54:257
274231991614,2cyclictest268849-21kworker/u16:2+events_unbound19:18:536
274231991613,2cyclictest549706-21kworker/u16:2+flush-8:022:34:026
274223991614,2cyclictest516403-21kworker/u16:3+events_unbound22:11:094
274236991515,0cyclictest0-21swapper/720:11:197
274236991514,0cyclictest0-21swapper/722:24:327
274236991514,0cyclictest0-21swapper/720:56:487
274236991512,2cyclictest902-21dbus-daemon21:13:587
274231991513,2cyclictest821988-21kworker/u16:3+flush-8:023:54:156
274223991412,2cyclictest306713-21kworker/u16:1+flush-8:021:24:224
27423699139,3cyclictest890569-21df00:24:117
27423699139,2cyclictest1267-21snmpd19:13:017
274236991312,0cyclictest0-21swapper/723:10:187
27423699130,12cyclictest414916-21grep20:19:127
274231991312,1cyclictest0-21swapper/621:18:166
27423199130,13cyclictest0-21swapper/621:49:206
27423199130,0cyclictest0-21swapper/620:53:226
274227991311,2cyclictest268849-21kworker/u16:2+events_unbound19:28:575
274223991311,2cyclictest802427-21kworker/u16:0+events_unbound00:16:164
274223991311,2cyclictest442630-21kworker/u16:2+flush-8:020:34:184
27423699129,2cyclictest1267-21snmpd20:33:547
27423699120,10cyclictest569898-21cat21:39:107
27423699120,10cyclictest569898-21cat21:39:107
274231991211,1cyclictest0-21swapper/623:28:586
274231991211,1cyclictest0-21swapper/623:26:366
274231991211,1cyclictest0-21swapper/619:39:356
274231991210,2cyclictest442630-21kworker/u16:2+flush-8:020:54:166
27423199120,12cyclictest0-21swapper/622:55:236
27423199120,12cyclictest0-21swapper/600:05:046
27422399129,2cyclictest306713-21kworker/u16:1+flush-8:021:04:144
274223991210,2cyclictest516403-21kworker/u16:3+events_unbound21:19:264
274223991210,2cyclictest210320-21kworker/u16:0+events_unbound19:11:334
27422399120,12cyclictest0-21swapper/400:37:264
27423699110,9cyclictest521813-21cat21:14:137
27423699110,3cyclictest725236-21cpuspeed_turbos22:59:087
27423199119,2cyclictest735558-21kworker/u16:4+flush-8:023:18:576
274231991110,1cyclictest0-21swapper/623:21:436
274231991110,1cyclictest0-21swapper/623:12:066
274231991110,1cyclictest0-21swapper/622:22:176
274231991110,1cyclictest0-21swapper/622:06:506
274231991110,1cyclictest0-21swapper/621:56:446
274231991110,1cyclictest0-21swapper/621:09:456
274231991110,1cyclictest0-21swapper/620:22:376
274231991110,1cyclictest0-21swapper/620:17:066
274231991110,1cyclictest0-21swapper/620:04:486
274231991110,1cyclictest0-21swapper/620:04:486
274231991110,1cyclictest0-21swapper/600:37:046
27423199110,1cyclictest0-21swapper/619:58:116
27423199110,11cyclictest0-21swapper/622:43:436
27423199110,11cyclictest0-21swapper/620:11:546
27423199110,11cyclictest0-21swapper/619:47:476
27423199110,11cyclictest0-21swapper/600:22:156
27423199110,0cyclictest0-21swapper/620:39:486
27423199110,0cyclictest0-21swapper/600:09:576
27422399119,2cyclictest802427-21kworker/u16:0+events_unbound00:09:454
27423199109,1cyclictest0-21swapper/622:50:396
27423199109,1cyclictest0-21swapper/621:44:176
27423199109,1cyclictest0-21swapper/621:22:516
27423199109,1cyclictest0-21swapper/621:01:246
27423199109,1cyclictest0-21swapper/619:35:386
27423199109,1cyclictest0-21swapper/619:31:426
27423199109,1cyclictest0-21swapper/600:29:306
27423199109,1cyclictest0-21swapper/600:00:116
27423199108,2cyclictest549706-21kworker/u16:2+flush-8:021:34:216
2742319998,1cyclictest0-21swapper/623:45:506
2742319998,1cyclictest0-21swapper/623:41:066
2742319998,1cyclictest0-21swapper/622:24:486
2742319998,1cyclictest0-21swapper/622:14:246
2742319998,1cyclictest0-21swapper/619:51:246
2742319994,4cyclictest279469-21cut19:09:196
2742319987,1cyclictest0-21swapper/623:04:516
2742319987,1cyclictest0-21swapper/622:45:566
2742319987,1cyclictest0-21swapper/619:27:366
2742319976,1cyclictest0-21swapper/621:29:476
2742319976,1cyclictest0-21swapper/621:25:036
2742319976,1cyclictest0-21swapper/620:31:276
2742319976,1cyclictest0-21swapper/620:28:466
2742319962,3cyclictest5747-21gnome-shell23:37:076
2742319960,5cyclictest5750-21gmain20:34:136
2742319954,1cyclictest0-21swapper/621:04:056
2742319953,1cyclictest8706242chrt00:13:586
2742319950,5cyclictest0-21swapper/622:59:086
2742319950,5cyclictest0-21swapper/621:59:046
2742319950,5cyclictest0-21swapper/619:59:126
2742239954,1cyclictest0-21swapper/423:04:064
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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