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2026-05-02 - 14:44
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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 rack4slot6.osadl.org (updated Sat May 02, 2026 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6787521240,105pltrace0-21swapper/607:07:176
6787521130,104pltrace0-21swapper/307:07:073
6787521090,100pltrace0-21swapper/107:05:131
957552920,82pltrace0-21swapper/507:08:215
678752880,74pltrace0-21swapper/207:06:532
678752770,53pltrace0-21swapper/707:07:107
965526045,11sleep00-21swapper/007:09:150
730225936,18sleep40-21swapper/407:05:094
2163052330,1pltrace1283-21pltrace-run07:28:101
1758752270,4pltrace0-21swapper/711:15:117
993299240,23cyclictest0-21swapper/610:32:286
991199230,22cyclictest0-21swapper/108:25:131
992499220,15cyclictest0-21swapper/411:55:504
1543752200,6pltrace0-21swapper/709:15:177
993699190,19cyclictest0-21swapper/710:55:197
2315852190,4pltrace0-21swapper/711:25:147
1201152190,0pltrace0-21swapper/711:04:127
1093552190,0pltrace0-21swapper/710:05:407
9924991815,2cyclictest2317-21cstates08:50:124
9924991811,5cyclictest191rcu_preempt07:15:154
9924991810,7cyclictest0-21swapper/411:54:554
9924991810,7cyclictest0-21swapper/410:25:464
992499180,6cyclictest0-21swapper/412:19:054
9915991813,3cyclictest0-21swapper/208:31:272
9915991812,5cyclictest0-21swapper/210:39:442
9936991712,3cyclictest0-21swapper/711:43:037
9936991711,5cyclictest0-21swapper/710:48:477
9927991711,5cyclictest0-21swapper/507:14:515
9927991711,4cyclictest0-21swapper/512:06:345
9927991711,3cyclictest0-21swapper/510:32:045
9924991716,1cyclictest0-21swapper/408:05:474
9924991714,2cyclictest31807-21cat07:45:164
9924991714,2cyclictest18891-21taskset07:23:454
9924991711,4cyclictest0-21swapper/409:23:414
9919991712,3cyclictest0-21swapper/309:17:553
9915991711,3cyclictest0-21swapper/212:13:032
76952170,0pltrace0-21swapper/710:43:597
3106752170,0pltrace0-21swapper/708:45:117
993699166,8cyclictest0-21swapper/707:38:437
993699160,4cyclictest0-21swapper/711:14:187
9932991610,5cyclictest0-21swapper/607:25:286
993299161,3cyclictest0-21swapper/611:16:156
992799160,8cyclictest0-21swapper/512:22:445
992799160,15cyclictest0-21swapper/507:54:085
992499166,9cyclictest0-21swapper/410:18:304
9924991613,2cyclictest521rcuc/407:35:214
9924991613,2cyclictest27722-21/usr/sbin/munin07:40:194
9924991613,2cyclictest22163-21taskset10:24:154
9924991613,2cyclictest1178-21runrttasks12:08:204
9924991611,3cyclictest0-21swapper/409:48:544
9924991610,5cyclictest0-21swapper/411:00:164
992499161,7cyclictest0-21swapper/411:30:324
992499160,2cyclictest54-21ksoftirqd/411:36:414
992499160,15cyclictest54-21ksoftirqd/407:25:194
992499160,15cyclictest0-21swapper/407:10:464
9919991612,3cyclictest0-21swapper/307:56:063
9919991610,5cyclictest0-21swapper/309:21:533
991999161,4cyclictest0-21swapper/309:57:093
991999161,4cyclictest0-21swapper/308:01:323
9915991611,3cyclictest0-21swapper/208:23:472
9915991610,5cyclictest0-21swapper/208:36:212
991199161,7cyclictest0-21swapper/107:21:201
991199161,3cyclictest0-21swapper/111:57:211
9908991611,3cyclictest0-21swapper/008:02:060
990899161,14cyclictest0-21swapper/007:41:420
990899160,8cyclictest0-21swapper/008:34:550
990899160,7cyclictest0-21swapper/011:10:270
361952160,3pltrace0-21swapper/710:52:057
30652160,3pltrace0-21swapper/707:49:087
2936552160,0pltrace0-21swapper/709:42:547
2936552160,0pltrace0-21swapper/709:42:547
1201152160,2pltrace0-21swapper/711:05:427
993699151,7cyclictest0-21swapper/709:47:237
993699150,8cyclictest0-21swapper/710:24:247
993699150,7cyclictest0-21swapper/709:06:567
993699150,4cyclictest0-21swapper/707:21:117
993699150,14cyclictest0-21swapper/707:12:407
993699150,13cyclictest0-21swapper/710:31:297
993699150,13cyclictest0-21swapper/708:50:347
993299150,8cyclictest0-21swapper/612:27:506
993299150,8cyclictest0-21swapper/608:25:016
993299150,3cyclictest0-21swapper/608:17:476
993299150,14cyclictest0-21swapper/612:22:146
993299150,14cyclictest0-21swapper/611:53:526
993299150,14cyclictest0-21swapper/607:24:076
992799159,5cyclictest0-21swapper/509:43:115
992799159,5cyclictest0-21swapper/509:43:115
992799151,3cyclictest0-21swapper/512:35:145
992799150,7cyclictest0-21swapper/511:54:495
992799150,7cyclictest0-21swapper/507:17:425
992799150,14cyclictest0-21swapper/510:01:335
992799150,14cyclictest0-21swapper/509:20:475
992799150,14cyclictest0-21swapper/507:42:075
992799150,13cyclictest0-21swapper/511:28:485
992499159,5cyclictest2421-21/usr/sbin/munin11:45:204
992499159,2cyclictest29006-21tune2fs10:35:134
992499156,6cyclictest54-21ksoftirqd/408:35:174
992499155,6cyclictest54-21ksoftirqd/409:15:174
992499152,13cyclictest0-21swapper/407:30:124
9924991512,2cyclictest7494-21switchtime09:55:214
9924991512,2cyclictest7156-21sshd08:59:554
9924991512,2cyclictest4783-21irqstats07:55:154
9924991512,2cyclictest31571-21expr12:35:184
9924991512,2cyclictest25410-21irqstats09:30:174
9924991512,2cyclictest1021-21ntpd10:50:174
9924991510,3cyclictest0-21swapper/409:35:124
9924991510,3cyclictest0-21swapper/409:35:124
9924991510,3cyclictest0-21swapper/407:54:024
992499150,7cyclictest0-21swapper/411:17:054
992499150,14cyclictest0-21swapper/412:25:204
991999150,8cyclictest0-21swapper/310:45:223
991999150,7cyclictest0-21swapper/308:31:153
991999150,3cyclictest0-21swapper/309:45:123
991999150,14cyclictest0-21swapper/309:25:563
991599159,5cyclictest0-21swapper/208:17:292
991599150,7cyclictest0-21swapper/212:06:392
9911991513,1cyclictest0-21swapper/107:45:231
991199150,3cyclictest0-21swapper/108:51:241
991199150,14cyclictest0-21swapper/110:44:501
991199150,14cyclictest0-21swapper/108:30:141
991199150,13cyclictest0-21swapper/107:11:371
990899150,7cyclictest0-21swapper/012:07:390
990899150,7cyclictest0-21swapper/009:59:270
990899150,13cyclictest0-21swapper/011:53:120
703252150,0pltrace0-21swapper/708:59:487
316652150,2pltrace0-21swapper/707:55:437
3106752150,2pltrace0-21swapper/708:45:007
2594352150,3pltrace28055-21sensors_volt11:30:205
144052150,4pltrace1146-21snmpd08:51:330
993699140,7cyclictest0-21swapper/712:35:497
993699140,7cyclictest0-21swapper/709:38:207
993699140,7cyclictest0-21swapper/709:38:207
993699140,13cyclictest0-21swapper/711:51:047
993299149,3cyclictest0-21swapper/611:25:336
993299149,3cyclictest0-21swapper/608:30:016
9932991411,2cyclictest1065-17sedispatch10:30:006
993299140,14cyclictest0-21swapper/611:45:176
993299140,1cyclictest0-21swapper/609:05:206
992799141,12cyclictest0-21swapper/507:58:385
992799140,7cyclictest0-21swapper/508:23:265
992799140,6cyclictest0-21swapper/511:18:295
992799140,3cyclictest0-21swapper/511:20:565
992799140,3cyclictest0-21swapper/511:14:475
992799140,3cyclictest0-21swapper/510:13:275
992799140,14cyclictest0-21swapper/512:10:435
992799140,13cyclictest0-21swapper/509:48:575
992799140,13cyclictest0-21swapper/507:25:185
992499149,2cyclictest54-21ksoftirqd/412:30:184
992499149,2cyclictest191rcu_preempt12:10:144
992499145,4cyclictest54-21ksoftirqd/410:45:144
9924991412,2cyclictest31927-21vmstat09:40:224
9924991412,2cyclictest31927-21vmstat09:40:224
9924991412,1cyclictest14630-21expr10:10:104
9924991411,2cyclictest9676-21sshd10:00:144
9924991411,2cyclictest8386-21cat08:00:214
9924991411,2cyclictest7646-21cut09:00:134
9924991411,2cyclictest31298-21expr10:40:104
9924991411,2cyclictest29352-21cat08:40:134
9924991411,2cyclictest25939-21forks10:30:134
9924991411,2cyclictest21977-21expr09:25:134
9924991411,2cyclictest21229-21cut11:20:114
9924991411,2cyclictest14341-21cat11:05:214
9924991411,2cyclictest11806-21open_files09:05:204
9924991411,2cyclictest1076-21systemd-logind12:25:014
9924991411,1cyclictest191rcu_preempt08:14:524
991999147,6cyclictest0-21swapper/310:07:103
991999140,7cyclictest0-21swapper/312:12:303
991999140,7cyclictest0-21swapper/308:57:313
991599149,3cyclictest0-21swapper/207:54:362
991599140,8cyclictest0-21swapper/209:51:242
991599140,7cyclictest0-21swapper/211:06:562
991599140,7cyclictest0-21swapper/210:31:052
991599140,7cyclictest0-21swapper/209:47:122
991199149,3cyclictest0-21swapper/112:28:551
991199143,9cyclictest0-21swapper/110:01:271
991199141,12cyclictest0-21swapper/108:02:121
991199140,13cyclictest0-21swapper/110:29:441
991199140,12cyclictest0-21swapper/112:00:091
990899148,5cyclictest0-21swapper/012:18:580
990899140,7cyclictest0-21swapper/009:20:000
990899140,14cyclictest0-21swapper/009:20:180
990899140,13cyclictest0-21swapper/007:25:210
2270652140,0pltrace0-21swapper/708:30:227
1587452140,2pltrace0-21swapper/712:11:287
993699137,5cyclictest0-21swapper/710:04:157
993699137,5cyclictest0-21swapper/709:24:287
993299139,3cyclictest0-21swapper/609:44:156
993299139,3cyclictest0-21swapper/609:44:156
993299137,4cyclictest0-21swapper/610:49:226
9932991312,1cyclictest0-21swapper/612:14:556
993299130,12cyclictest0-21swapper/611:43:526
993299130,12cyclictest0-21swapper/610:40:586
993299130,12cyclictest0-21swapper/610:02:036
992799130,12cyclictest0-21swapper/510:58:315
992799130,12cyclictest0-21swapper/509:00:215
992799130,12cyclictest0-21swapper/507:31:115
9924991311,1cyclictest4512-21open_files09:50:184
9924991311,1cyclictest11992-21df_inode10:05:144
9924991310,2cyclictest7089-21grep10:55:104
9924991310,2cyclictest32041-21aten_r4power_cu11:40:114
9924991310,2cyclictest32033-21expr08:45:114
9924991310,2cyclictest24155-21gltestperf08:30:144
9924991310,2cyclictest23918-21cpuspeed_turbos11:25:114
9924991310,2cyclictest20697-21expr08:25:124
9924991310,2cyclictest19087-21ntpq08:20:174
9924991310,2cyclictest16545-21cat11:10:154
9924991310,2cyclictest16095-21sed08:15:154
9924991310,2cyclictest13638-21expr09:10:134
9924991310,2cyclictest10802-21cut12:00:124
991999138,3cyclictest0-21swapper/309:12:013
9919991310,2cyclictest1065-17sedispatch12:25:003
991999130,13cyclictest0-21swapper/311:50:163
991999130,12cyclictest0-21swapper/311:21:563
991999130,12cyclictest0-21swapper/310:00:473
991999130,1cyclictest0-21swapper/307:12:563
991599130,6cyclictest0-21swapper/210:00:462
991199134,8cyclictest0-21swapper/109:35:161
991199134,8cyclictest0-21swapper/109:35:161
9911991312,1cyclictest0-21swapper/108:35:051
9911991310,2cyclictest1478-21lldpd09:06:451
991199130,12cyclictest0-21swapper/109:50:381
991199130,1cyclictest0-21swapper/109:47:561
990899137,5cyclictest0-21swapper/012:24:190
990899137,5cyclictest0-21swapper/011:34:390
9908991311,1cyclictest0-21swapper/008:57:090
990899130,13cyclictest0-21swapper/010:01:540
990899130,1cyclictest0-21swapper/007:20:290
919252130,9pltrace11509-21sed11:00:202
876352130,4pltrace0-21swapper/708:03:417
469352130,3pltrace1146-21snmpd11:48:187
3044052130,3pltrace0-21swapper/710:39:457
2828052130,1pltrace28384-21taskset08:39:377
2720252130,3pltrace1178-21runrttasks07:38:282
2100852130,4pltrace0-21swapper/109:26:451
190552130,1pltrace1178-21runrttasks11:44:550
1884652130,2pltrace19554-21cpuspeed_turbos07:25:132
993699129,2cyclictest12168-21aten_r4power_vo08:10:137
993699120,11cyclictest0-21swapper/710:29:177
993699120,11cyclictest0-21swapper/709:32:087
993299129,2cyclictest0-21swapper/611:13:486
993299126,5cyclictest0-21swapper/607:16:216
993299123,8cyclictest0-21swapper/608:07:566
9932991211,1cyclictest0-21swapper/612:31:556
9932991211,1cyclictest0-21swapper/610:20:266
9932991211,1cyclictest0-21swapper/609:01:566
992799128,3cyclictest0-21swapper/507:22:315
992799126,5cyclictest0-21swapper/507:47:555
9927991211,1cyclictest0-21swapper/510:05:215
992799120,11cyclictest0-21swapper/512:30:075
992799120,11cyclictest0-21swapper/512:16:415
992799120,11cyclictest0-21swapper/509:05:175
992799120,11cyclictest0-21swapper/507:35:065
9919991211,1cyclictest0-21swapper/311:30:213
9919991211,1cyclictest0-21swapper/310:51:003
9919991211,1cyclictest0-21swapper/309:50:193
991999120,11cyclictest0-21swapper/309:32:173
991999120,11cyclictest0-21swapper/308:37:463
991999120,11cyclictest0-21swapper/308:11:503
991999120,1cyclictest0-21swapper/311:47:023
991999120,1cyclictest0-21swapper/310:33:223
991599128,2cyclictest0-21swapper/210:10:162
991599126,5cyclictest0-21swapper/211:58:002
991599126,5cyclictest0-21swapper/209:28:532
991599126,5cyclictest0-21swapper/208:26:302
991599126,3cyclictest0-21swapper/207:12:162
991599122,8cyclictest0-21swapper/211:15:172
991599120,11cyclictest0-21swapper/209:24:212
991599120,11cyclictest0-21swapper/209:14:442
991199122,8cyclictest0-21swapper/111:35:291
9911991211,1cyclictest0-21swapper/107:34:511
9911991210,1cyclictest0-21swapper/111:30:051
9911991210,1cyclictest0-21swapper/111:10:121
9911991210,1cyclictest0-21swapper/107:51:511
991199120,12cyclictest0-21swapper/107:42:091
991199120,1cyclictest0-21swapper/107:55:061
990899126,5cyclictest0-21swapper/010:18:190
9908991211,1cyclictest0-21swapper/012:10:180
9908991211,1cyclictest0-21swapper/008:21:030
9908991211,1cyclictest0-21swapper/007:12:340
990899120,5cyclictest0-21swapper/012:38:200
990899120,12cyclictest0-21swapper/011:20:270
595352120,5pltrace0-21swapper/607:59:256
533252120,10pltrace0-21swapper/509:56:475
361952120,5pltrace0-21swapper/210:48:452
30652120,3pltrace191rcu_preempt07:49:270
2980952120,5pltrace0-21swapper/212:37:532
2936552120,5pltrace0-21swapper/309:42:533
2936552120,5pltrace0-21swapper/309:42:533
2765552120,5pltrace0-21swapper/010:34:580
2270652120,5pltrace0-21swapper/008:28:550
1758752120,3pltrace191rcu_preempt11:16:030
1651052120,0pltrace0-21swapper/610:17:026
1027952120,3pltrace12157-21needreboot12:00:176
1027952120,1pltrace12857-21taskset12:00:282
993699119,1cyclictest0-21swapper/708:25:097
993699118,2cyclictest29244-21/usr/sbin/munin11:35:167
993699118,2cyclictest1178-21runrttasks07:29:167
993699115,2cyclictest0-21swapper/711:20:247
993699113,7cyclictest0-21swapper/712:29:497
993699112,8cyclictest0-21swapper/709:53:167
993699110,9cyclictest0-21swapper/709:25:287
993699110,1cyclictest0-21swapper/712:17:097
993699110,1cyclictest0-21swapper/710:18:187
993299117,3cyclictest1146-21snmpd09:53:176
993299117,2cyclictest0-21swapper/608:39:586
993299116,4cyclictest0-21swapper/607:37:076
9932991110,1cyclictest0-21swapper/610:05:136
9932991110,1cyclictest0-21swapper/608:42:496
993299110,11cyclictest0-21swapper/611:24:056
993299110,1cyclictest0-21swapper/612:07:196
993299110,1cyclictest0-21swapper/610:59:276
993299110,1cyclictest0-21swapper/610:54:366
993299110,1cyclictest0-21swapper/609:38:206
993299110,1cyclictest0-21swapper/609:38:206
993299110,1cyclictest0-21swapper/609:30:446
993299110,1cyclictest0-21swapper/609:15:516
993299110,1cyclictest0-21swapper/608:32:186
993299110,1cyclictest0-21swapper/607:11:296
992799118,2cyclictest0-21swapper/509:13:115
992799116,3cyclictest0-21swapper/508:47:015
992799115,5cyclictest0-21swapper/508:54:375
992799114,6cyclictest0-21swapper/509:17:055
9927991110,1cyclictest0-21swapper/509:29:555
992799110,11cyclictest0-21swapper/508:57:425
992799110,11cyclictest0-21swapper/508:30:385
992799110,1cyclictest0-21swapper/511:59:315
992799110,1cyclictest0-21swapper/510:26:145
992799110,1cyclictest0-21swapper/510:24:575
991999118,2cyclictest0-21swapper/308:53:143
991999116,4cyclictest1178-21runrttasks07:33:123
991999114,4cyclictest0-21swapper/312:06:183
9919991110,1cyclictest0-21swapper/310:16:323
9919991110,1cyclictest0-21swapper/309:02:223
991999110,11cyclictest0-21swapper/311:42:593
991999110,11cyclictest0-21swapper/311:38:563
991999110,11cyclictest0-21swapper/308:46:403
991999110,11cyclictest0-21swapper/307:51:093
991999110,11cyclictest0-21swapper/307:47:063
991999110,11cyclictest0-21swapper/307:20:523
991999110,1cyclictest0-21swapper/312:27:203
991999110,1cyclictest0-21swapper/310:59:263
991999110,1cyclictest0-21swapper/308:41:103
991599118,2cyclictest24558-21crond07:35:012
991599117,2cyclictest0-21swapper/211:36:562
991599117,2cyclictest0-21swapper/210:07:172
9915991110,1cyclictest0-21swapper/211:45:422
9915991110,1cyclictest0-21swapper/208:58:372
991599111,8cyclictest0-21swapper/210:52:342
991599110,11cyclictest0-21swapper/211:21:442
991599110,11cyclictest0-21swapper/210:58:542
991599110,11cyclictest0-21swapper/209:05:252
991599110,11cyclictest0-21swapper/208:10:322
991599110,11cyclictest0-21swapper/207:57:062
991599110,1cyclictest0-21swapper/211:41:392
991599110,1cyclictest0-21swapper/209:39:262
991599110,1cyclictest0-21swapper/209:39:262
991599110,1cyclictest0-21swapper/208:45:012
991599110,1cyclictest0-21swapper/208:08:552
991199118,2cyclictest19434-21latency_hist10:20:011
991199117,3cyclictest30934-21grep12:35:141
991199116,3cyclictest0-21swapper/109:01:041
991199115,5cyclictest0-21swapper/107:35:351
991199112,8cyclictest0-21swapper/109:14:461
9911991110,1cyclictest0-21swapper/111:52:451
9911991110,1cyclictest0-21swapper/110:56:061
9911991110,1cyclictest0-21swapper/110:31:011
9911991110,1cyclictest0-21swapper/110:12:531
9911991110,1cyclictest0-21swapper/110:05:551
9911991110,1cyclictest0-21swapper/108:41:531
991199110,11cyclictest0-21swapper/112:06:021
991199110,11cyclictest0-21swapper/111:16:291
991199110,11cyclictest0-21swapper/111:00:581
991199110,11cyclictest0-21swapper/109:15:421
991199110,11cyclictest0-21swapper/108:18:341
991199110,11cyclictest0-21swapper/107:16:241
990899117,3cyclictest0-21swapper/011:49:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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