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2026-06-24 - 12:00
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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 rackeslot8.osadl.org (updated Wed Jun 24, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11887102340,5sleep21187113-21kworker/u16:3+xprtiod21:40:182
13281682330,0sleep0221rcuc/023:10:010
10690172280,1sleep00-21swapper/020:10:270
984291992724,1cyclictest0-21swapper/323:40:173
984291992724,1cyclictest0-21swapper/321:30:153
984291992623,1cyclictest0-21swapper/321:00:133
984291992623,1cyclictest0-21swapper/321:00:133
984291992410,9cyclictest1453632-21turbostat00:30:003
12005832241,11sleep01200661-21/usr/sbin/munin21:45:260
984291992320,1cyclictest0-21swapper/322:40:153
98429199226,6cyclictest1120762-21taskset20:54:563
98429199222,14cyclictest1391129-21taskset23:50:003
98429199221,15cyclictest1171277-21taskset21:29:553
98429199212,14cyclictest1271205-21taskset22:30:263
98429199212,14cyclictest1271205-21taskset22:30:253
984291992118,1cyclictest0-21swapper/321:40:143
984291992118,1cyclictest0-21swapper/320:40:003
98429199211,16cyclictest1278998-21taskset22:35:233
98429199211,15cyclictest1147801-21chrt21:15:013
98429199209,7cyclictest12575772sleep322:24:463
98429199202,14cyclictest1258188-21taskset22:25:173
98429199202,14cyclictest1222599-21taskset22:00:193
984291992017,1cyclictest0-21swapper/321:35:143
984291992017,1cyclictest0-21swapper/300:15:133
98429199201,15cyclictest1289502-21taskset22:45:133
98429199201,15cyclictest1011711-21taskset19:26:523
98429199201,14cyclictest1037724-21taskset19:50:013
98429199192,14cyclictest1058410-21taskset20:05:163
98429199192,13cyclictest1422123-21taskset00:09:303
98429199192,13cyclictest1367039-21taskset23:34:093
984291991916,1cyclictest0-21swapper/323:15:013
984291991916,1cyclictest0-21swapper/322:50:283
98429199191,14cyclictest1438249-21chrt00:20:123
98429199191,14cyclictest1216235-21taskset21:55:253
98429199191,14cyclictest1089099-21chrt20:30:143
98429199191,13cyclictest1068611-21chrt20:10:223
98429199188,7cyclictest14042582sleep323:55:233
98429199182,12cyclictest1056405-21taskset20:01:123
984291991815,1cyclictest0-21swapper/323:20:013
984291991815,1cyclictest0-21swapper/322:10:183
984291991815,1cyclictest0-21swapper/320:25:223
984291991815,1cyclictest0-21swapper/320:20:143
984291991811,4cyclictest9930762chrt19:15:133
98429199181,13cyclictest1407104-21taskset00:00:143
98429199181,13cyclictest1312771-21taskset23:00:093
98429199181,13cyclictest1307701-21taskset22:55:193
98429199181,13cyclictest1242478-21taskset22:15:153
98429199181,13cyclictest1232664-21taskset22:05:533
98429199181,13cyclictest1205974-21taskset21:50:333
98429199181,13cyclictest1153447-21taskset21:15:243
98429199181,13cyclictest1139691-21taskset21:07:353
98429199181,13cyclictest1024030-21taskset19:35:263
98429199181,13cyclictest1017989-21taskset19:30:483
98429199172,12cyclictest1467695-21taskset00:35:283
98429199172,12cyclictest1005405-21taskset19:22:543
98429199172,11cyclictest1108450-21taskset20:45:133
984291991714,1cyclictest0-21swapper/323:45:203
984291991714,1cyclictest0-21swapper/323:35:243
984291991714,1cyclictest0-21swapper/319:10:153
98429199171,13cyclictest1459887-21taskset00:30:423
98429199171,13cyclictest1162354-21taskset21:21:463
98429199171,13cyclictest1121032-21taskset20:55:083
98429199171,13cyclictest1030838-21taskset19:40:513
98429199171,12cyclictest1344139-21taskset23:20:063
98429199171,12cyclictest1326633-21taskset23:05:503
98429199171,12cyclictest1044550-21taskset19:55:153
12814762171,9sleep01281203-21sendmail-msp22:40:110
98429199167,7cyclictest10756082sleep320:15:473
98429199162,12cyclictest1043601-21taskset19:50:463
984291991613,1cyclictest0-21swapper/321:45:163
984291991612,1cyclictest0-21swapper/320:40:133
98429199161,12cyclictest1422924-21taskset00:10:133
98429199161,12cyclictest1358207-21taskset23:26:283
137548621611,3sleep1874-21rs:main1
13436712161,12sleep11343677-21ssh23:19:371
10366612160,6sleep11036698-21ntpq19:45:221
13728472141,5sleep11372932-21ntpq23:35:211
12271172141,9sleep21228057-21ssh22:05:172
10565752141,2sleep00-21swapper/020:03:220
10250792141,10sleep00-21swapper/019:40:130
13660192131,9sleep21366023-21ssh23:31:162
12344952132,7sleep01234491-21apt-get22:10:110
10843632130,10sleep21085665-21kthreadcore20:25:202
9831862121,6sleep0983225-21ntpq19:05:210
14403842120,9sleep21441918-21grep00:20:202
12515362120,9sleep11252528-21cut22:20:181
11954272121,8sleep21195528-21fschecks_time21:45:152
11848432120,9sleep21184881-21awk21:35:292
11274322120,8sleep21127469-21grep21:00:132
11274322120,8sleep21127469-21grep21:00:132
14673562113,2sleep1331ktimers/100:35:261
14591642110,8sleep21459217-21ld00:30:222
13516772111,7sleep01351764-21latency_hist23:25:000
13199402110,4sleep00-21swapper/023:03:590
13188342111,7sleep21296756-21kworker/u16:2+nfsiod23:00:502
12475682111,7sleep21247614-21ntpq22:15:272
12412972110,8sleep21241304-21sh22:13:142
12319062110,2sleep01231954-21ssh22:05:230
11224392111,7sleep21123409-21cut20:55:202
10762282111,7sleep21076000-21sendmail-msp20:20:122
14465242100,7sleep11447027-21irqcore00:25:151
13995042101,6sleep21400256-21irqrtprio23:55:182
13446002101,5sleep11344699-21grep23:20:161
13284872102,4sleep01328483-21apt-get23:10:130
13220902100,7sleep21323503-21kthreadcore23:05:192
13207022101,6sleep11320774-21sort23:05:141
13021272100,6sleep11302286-21netstat22:50:221
12893382101,6sleep11289344-21ssh22:45:131
12654742100,7sleep01265483-21cron22:30:000
12339052100,2sleep1222-21plymouthd22:09:241
11704312100,7sleep21170439-21ssh21:27:312
11619422100,2sleep0222-21plymouthd21:20:440
11473212101,6sleep01147326-21sh21:13:460
11083042100,7sleep21108449-21/usr/sbin/munin20:45:142
10638852100,7sleep21063408-21/usr/sbin/munin20:10:182
10557282101,5sleep11055778-21ntpq20:00:311
10058402100,6sleep0222-21plymouthd19:25:130
998893290,2sleep0222-21plymouthd19:16:190
982073291,4sleep2983042-21memory19:05:192
1439659290,6sleep11439718-21kthreadcore00:20:191
1421577290,1sleep10-21swapper/100:08:001
1413363291,5sleep21139671-21kworker/u16:1+xprtiod00:01:592
1375564290,6sleep01375649-21cpuspeed_turbos23:40:130
1342731290,2sleep0222-21plymouthd23:16:590
1333742291,4sleep21333784-21ntpq23:10:242
1318162291,5sleep11318201-21ntpq23:00:241
1303328290,1sleep20-21swapper/222:51:272
1268096291,5sleep10-21swapper/122:30:211
1268096291,5sleep10-21swapper/122:30:201
1250071295,2sleep00-21swapper/022:20:010
1226046296,1sleep20-21swapper/222:04:162
1217346290,7sleep01217352-21ssh21:57:050
1210573291,5sleep10-21swapper/121:55:011
1176977291,4sleep0222-21plymouthd21:30:260
1176880291,5sleep21176926-21ntpq21:30:242
1107998290,6sleep11108213-21latency_hist20:45:001
1101567290,1sleep10-21swapper/120:39:441
1094119291,5sleep21094239-21ntpq20:30:232
1063106292,3sleep2222-21plymouthd20:09:372
1062997290,2sleep00-21swapper/020:08:120
1043869290,2sleep0222-21plymouthd19:54:120
1031433291,4sleep21031465-21apt-get19:45:112
1024708290,2sleep2222-21plymouthd19:39:272
999506280,5sleep1999653-21sh19:20:141
999505282,3sleep0872-21in:imuxsock19:20:130
978078281,3sleep30-21swapper/319:05:123
1446078280,5sleep20-21swapper/200:25:082
1437376280,2sleep11437382-21ssh00:18:341
1420316280,2sleep00-21swapper/000:05:300
1413033280,2sleep0222-21plymouthd00:01:020
1397197281,4sleep21397205-21ssh23:50:522
1389427280,2sleep11389433-21ssh23:46:031
1382757280,2sleep2222-21plymouthd23:44:192
1367655281,3sleep00-21swapper/023:35:120
1359830281,3sleep10-21swapper/123:30:101
1359047280,1sleep20-21swapper/223:28:522
1350740281,4sleep21350746-21ssh23:22:222
1342799281,4sleep21342804-21sh23:17:092
1311855281,4sleep11311861-21ssh22:58:241
1306377282,3sleep20-21swapper/222:55:202
1297057281,3sleep01297092-21apt-get22:50:120
1295282280,5sleep01295288-21ssh22:45:560
1279041280,5sleep0222-21plymouthd22:35:260
1264243280,1sleep10-21swapper/122:26:321
1248552280,1sleep00-21swapper/022:16:370
1204567280,5sleep21205973-21tr21:50:332
1184787281,4sleep11184840-21ntp_states21:35:291
1169022281,4sleep11169072-21ntpq21:25:221
1164241280,5sleep01164457-21irqcore21:25:170
1155449281,4sleep01155454-21sh21:19:360
1145338281,4sleep21145484-21ntpq21:10:242
1139589280,2sleep20-21swapper/221:06:182
1133786281,3sleep01133819-21apt-get21:05:110
1133432280,1sleep0222-21plymouthd21:03:560
1133432280,1sleep0222-21plymouthd21:03:550
1114682281,4sleep11114685-21apt-get20:50:131
1114151280,2sleep0222-21plymouthd20:47:000
1107203281,4sleep01107313-21python320:40:260
1094285281,4sleep01094332-21ntp_states20:30:240
1073625281,4sleep01074829-21memory20:15:170
1063132280,2sleep1222-21plymouthd20:09:561
1050043281,3sleep2222-21plymouthd19:57:022
1024480280,1sleep00-21swapper/019:36:270
1018006280,1sleep00-21swapper/019:31:030
1007349280,5sleep21009076-21cut19:25:202
999105270,3sleep2222-21plymouthd19:19:022
990603270,1sleep10-21swapper/119:14:441
990418270,4sleep2222-21plymouthd19:12:202
983927270,3sleep1222-21plymouthd19:07:111
1462844271,3sleep01463775-21tr00:35:170
1459613271,3sleep01459804-21users00:30:280
1438734271,3sleep01439657-21cut00:20:180
1428848270,4sleep2222-21plymouthd00:11:262
1404354271,3sleep1222-21plymouthd23:55:251
1397755270,4sleep11397763-21ssh23:52:241
1397450270,4sleep0222-21plymouthd23:51:310
1389851270,1sleep20-21swapper/223:47:082
1374160270,1sleep21374166-21ssh23:37:062
1366033270,1sleep0222-21plymouthd23:31:180
1311189270,1sleep0222-21plymouthd22:56:350
1296341270,1sleep20-21swapper/222:48:542
1286803271,3sleep11286848-21ntp_states22:40:241
1280107270,1sleep21280113-21ssh22:37:072
1265847271,2sleep21265850-21apt-get22:30:142
1265847271,2sleep21265850-21apt-get22:30:132
1249675270,5sleep11249681-21ssh22:19:431
1235229271,3sleep10-21swapper/122:10:161
1202305270,1sleep10-21swapper/121:48:521
1193527273,2sleep10-21swapper/121:41:141
1161360271,3sleep21161434-21/usr/sbin/munin21:20:262
1161320271,3sleep10-21swapper/121:20:251
1154133270,4sleep11154141-21ssh21:15:591
1140601270,4sleep11140727-21ssh21:10:191
1133822270,3sleep1222-21plymouthd21:05:121
1127397272,2sleep1249-21jbd2/sda2-821:00:121
1127397272,2sleep1249-21jbd2/sda2-821:00:111
1120557270,1sleep00-21swapper/020:52:160
1101589270,4sleep2249-21jbd2/sda2-820:40:012
1095919271,3sleep01096746-21irqrtprio20:35:180
1094885270,1sleep10-21swapper/120:31:061
1087746271,3sleep11087786-21ntpq20:25:241
1081430270,4sleep11081473-21ntpq20:20:391
1076245271,3sleep01076264-21apt-get20:20:130
1074969271,3sleep21075012-21ntpq20:15:182
1056687270,3sleep2222-21plymouthd20:04:492
1042829270,4sleep11042974-21ld19:50:201
1030215271,3sleep1222-21plymouthd19:40:221
1027672271,3sleep21029524-21kthreadcore19:40:192
1024433270,1sleep10-21swapper/119:35:521
999032260,4sleep10-21swapper/119:18:051
986190261,3sleep0987934-21kthreadcore19:10:180
1462035260,3sleep21462235-21cat00:35:152
1452104260,3sleep01452100-40updatedb.plocat00:25:500
1428783261,3sleep0222-21plymouthd00:11:160
1414768260,4sleep21414474-21apt-get00:05:052
1406818261,3sleep11406595-21sendmail-msp00:00:021
1404306261,2sleep01404352-21ntpq23:55:240
1389329260,1sleep00-21swapper/023:45:420
1357197260,3sleep11357249-21ntpq23:25:221
1280287260,3sleep1222-21plymouthd22:37:421
1267250260,3sleep01267675-21ssh22:30:200
1267250260,3sleep01267675-21ssh22:30:200
1263932260,3sleep21263938-21ssh22:25:412
1256052260,1sleep20-21swapper/222:20:352
1226231260,3sleep00-21swapper/022:04:490
1225933260,1sleep10-21swapper/122:03:581
1210966260,3sleep11211120-21df21:55:171
1184745260,3sleep01184785-21ntpq21:35:280
1177024260,3sleep11177142-21/usr/sbin/munin21:30:271
1154095260,2sleep2222-21plymouthd21:15:482
1127068260,1sleep00-21swapper/020:59:310
1121075261,2sleep10-21swapper/120:55:151
1120529261,2sleep2222-21plymouthd20:51:552
1114110260,3sleep1222-21plymouthd20:46:291
1107705260,3sleep2222-21plymouthd20:41:172
1088365260,3sleep0222-21plymouthd20:25:350
1069382260,3sleep1222-21plymouthd20:12:501
1049972260,2sleep1222-21plymouthd19:56:091
1049928260,3sleep0222-21plymouthd19:55:370
1043630260,2sleep2222-21plymouthd19:51:102
1037272260,3sleep0222-21plymouthd19:46:260
1012257260,3sleep20-21swapper/219:30:132
1011146261,2sleep10-21swapper/119:25:271
1005454260,1sleep20-21swapper/219:23:342
1453967251,2sleep11453964-21apt-get00:30:131
1432764250,2sleep2222-21plymouthd00:15:192
1430456250,2sleep00-21swapper/000:15:120
1422628250,3sleep10-21swapper/100:10:091
1357887250,3sleep0222-21plymouthd23:25:370
1328408250,2sleep1222-21plymouthd23:10:021
1287626250,2sleep20-21swapper/222:41:172
1211121250,2sleep2222-21plymouthd21:55:182
1209072250,2sleep0222-21plymouthd21:50:460
1193312250,3sleep00-21swapper/021:40:410
1069847250,2sleep10-21swapper/120:15:101
1018241250,3sleep10-21swapper/119:34:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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