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2026-07-29 - 05:07
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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 rackeslot8.osadl.org (updated Wed Jul 29, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8153412490,1sleep0171rcu_preempt19:15:160
8266662470,7sleep014-21ksoftirqd/019:20:220
8266662470,7sleep014-21ksoftirqd/019:20:210
806339993632,1cyclictest0-21swapper/300:15:003
12419652280,7sleep20-21swapper/200:05:222
806339992725,1cyclictest0-21swapper/300:40:003
806339992724,1cyclictest0-21swapper/322:45:003
806339992724,1cyclictest0-21swapper/322:20:233
806339992522,1cyclictest0-21swapper/320:05:263
806339992421,1cyclictest0-21swapper/323:55:253
806339992421,1cyclictest0-21swapper/323:20:133
806339992421,1cyclictest0-21swapper/323:00:253
806339992421,1cyclictest0-21swapper/300:20:293
806339992320,1cyclictest0-21swapper/321:20:303
806339992320,1cyclictest0-21swapper/319:20:273
806339992320,1cyclictest0-21swapper/319:20:273
806339992320,1cyclictest0-21swapper/300:00:183
806339992312,8cyclictest12035452sleep323:40:213
806339992219,1cyclictest0-21swapper/321:40:233
806339992219,1cyclictest0-21swapper/320:40:193
806339992219,1cyclictest0-21swapper/320:20:063
806339992219,1cyclictest0-21swapper/319:40:013
806339992219,1cyclictest0-21swapper/300:30:133
80633999221,15cyclictest1221728-21taskset23:55:013
806339992118,1cyclictest0-21swapper/320:50:303
11487252211,10sleep21148815-21/usr/sbin/munin23:05:292
806339992017,1cyclictest0-21swapper/322:25:153
806339992017,1cyclictest0-21swapper/321:00:183
806339992017,1cyclictest0-21swapper/319:10:193
806339992016,1cyclictest0-21swapper/300:29:593
80633999201,14cyclictest1023139-21taskset21:45:273
806339992010,7cyclictest9432782sleep320:55:163
80633999199,7cyclictest8342862sleep319:30:133
80633999192,13cyclictest865195-21chrt19:50:233
80633999192,13cyclictest1127165-21taskset22:54:473
806339991916,1cyclictest0-21swapper/322:31:503
806339991916,1cyclictest0-21swapper/319:40:173
80633999191,14cyclictest830255-21taskset19:25:193
80633999191,14cyclictest1071958-21taskset22:19:013
80633999191,14cyclictest1041373-21chrt22:00:143
80633999191,13cyclictest956035-21taskset21:05:013
80633999189,6cyclictest9235692sleep320:38:193
80633999187,7cyclictest11291412sleep322:55:203
806339991815,1cyclictest0-21swapper/323:45:173
806339991815,1cyclictest0-21swapper/321:35:163
806339991815,1cyclictest0-21swapper/319:15:193
80633999181,13cyclictest968733-21taskset21:11:233
80633999181,13cyclictest935187-21taskset20:45:203
80633999181,13cyclictest892414-21taskset20:15:183
80633999181,13cyclictest885566-21taskset20:10:133
80633999181,13cyclictest872663-21taskset20:00:023
80633999181,13cyclictest1196541-21chrt23:36:203
80633999181,13cyclictest1181052-21taskset23:26:503
80633999181,13cyclictest1157299-21taskset23:11:353
80633999181,13cyclictest1062291-21taskset22:10:243
80633999181,13cyclictest1055465-21taskset22:06:513
80633999181,13cyclictest1039683-21taskset21:56:413
80633999181,13cyclictest1001082-21taskset21:34:113
8328892178,2sleep1171rcu_preempt19:25:221
80633999179,5cyclictest9165292chrt20:30:253
80633999178,6cyclictest8595952sleep319:49:293
806339991714,1cyclictest0-21swapper/322:35:183
806339991714,1cyclictest0-21swapper/321:50:103
806339991714,1cyclictest0-21swapper/300:15:293
80633999171,13cyclictest992845-21taskset21:27:543
80633999171,13cyclictest970392-21taskset21:15:153
80633999171,13cyclictest1149685-21taskset23:07:013
80633999171,13cyclictest1115249-21taskset22:45:203
80633999171,12cyclictest910649-21taskset20:26:433
80633999171,11cyclictest1237808-21chrt00:05:153
80633999161,12cyclictest866308-21taskset19:55:053
80633999161,12cyclictest1165336-21taskset23:17:083
80633999161,11cyclictest1188584-21taskset23:30:543
9624822151,10sleep2962484-21ssh21:10:092
8744392150,7sleep1875862-21tr20:00:171
11982622150,9sleep11197946-21sendmail-msp23:40:121
8053302141,9sleep2805353-21ntp_states19:05:222
11995912141,9sleep21200274-21cut23:40:172
10469102140,1sleep20-21swapper/222:00:292
8464752131,4sleep0222-21plymouthd19:35:470
12912572131,9sleep11291259-21ssh00:36:531
9548112121,8sleep0949394-21sendmail-msp21:00:210
9280272120,2sleep0923998-21/usr/sbin/munin20:40:210
8601032120,3sleep2860248-21tail19:50:162
8479902121,8sleep2848675-21cut19:40:172
8164342120,9sleep2816506-21cut19:15:202
12772172121,8sleep01277326-21fschecks_time00:30:150
12757522120,2sleep10-21swapper/100:27:231
12536152121,8sleep11253666-21grep00:15:151
11893052120,9sleep01189312-21sshd-session23:33:010
10091872121,8sleep21009357-21latency_hist21:40:012
9931722110,8sleep2993176-21ssh21:28:552
9771342110,1sleep10-21swapper/121:18:071
9333392110,8sleep2935186-21tr20:45:212
9134862110,8sleep0915279-21cut20:30:190
8282592110,8sleep0828378-21/usr/sbin/munin19:25:170
8080092113,5sleep1809735-21tr19:10:221
8061902110,2sleep30-21swapper/319:09:563
12712082111,7sleep21272909-21kthreadcore00:25:192
11895062112,7sleep21189512-21ssh23:33:312
11185852112,5sleep2222-21plymouthd22:47:372
11173312110,8sleep11117442-21systemctl22:45:271
11042012117,2sleep20-21swapper/222:40:152
10994472110,1sleep20-21swapper/222:35:182
10678082110,9sleep21069536-21kthreadcore22:15:202
9116292100,7sleep2912518-21irqrtprio20:30:172
8914412100,1sleep20-21swapper/220:12:052
8779382100,7sleep2877984-21gcc20:00:222
8473032101,2sleep0847500-21smartctl19:40:160
8363632100,7sleep1838125-21kthreadcore19:30:181
12605362100,7sleep0222-21plymouthd00:19:000
12359592100,7sleep11235963-21ssh00:01:011
12015042101,6sleep01202955-21kthreadcore23:40:190
11970712100,7sleep11197077-21ssh23:37:521
11732722100,8sleep01173280-21ssh23:22:030
10726432101,2sleep087-1kworker/0:1H+kblockd22:20:130
10642732100,7sleep21064277-21ssh22:14:412
10467802100,7sleep11046909-21cat22:00:291
985052291,2sleep0222-21plymouthd21:23:030
961295291,5sleep0961337-21ntpq21:05:230
949655291,5sleep2949394-21sendmail-msp21:00:122
923608290,2sleep2222-21plymouthd20:38:502
923386290,3sleep1222-21plymouthd20:35:571
909944290,1sleep10-21swapper/120:25:221
907073290,6sleep2907855-21kthreadcore20:25:192
901397291,5sleep2898122-21sendmail-msp20:20:192
847501290,6sleep1847986-21irqcore19:40:171
840342290,2sleep2222-21plymouthd19:34:402
826750291,5sleep2826776-21ntpq19:20:252
826750291,5sleep2826776-21ntpq19:20:242
1284883291,4sleep0222-21plymouthd00:35:120
1269203291,3sleep00-21swapper/000:25:140
1267571290,1sleep00-21swapper/000:21:330
1227168291,5sleep11227203-21ssh23:55:231
1216826292,4sleep01218648-21grep23:50:220
1212880290,2sleep1222-21plymouthd23:47:541
1211579290,7sleep01211662-21/usr/sbin/munin23:45:270
1189906291,2sleep1171rcu_preempt23:34:391
1181879290,2sleep1222-21plymouthd23:29:061
1173646290,2sleep1222-21plymouthd23:23:001
1125946290,6sleep11125952-21ssh22:51:241
1094169291,5sleep21094178-21ssh22:30:292
1080551291,4sleep1222-21plymouthd22:25:111
1072685291,4sleep11072354-21sendmail-msp22:20:141
1072060290,2sleep11072066-21ssh22:19:251
1039719291,5sleep1222-21plymouthd21:56:471
1024642291,2sleep00-21swapper/021:48:400
1006959294,2sleep11007007-21ntpq21:35:231
981304281,4sleep2982737-21grep21:20:202
967332280,5sleep1967636-21ssh21:10:201
942684281,3sleep0222-21plymouthd20:51:190
929231281,4sleep2929263-21ntpq20:40:232
909802281,4sleep0909942-21ntpq20:25:220
891422280,2sleep0222-21plymouthd20:11:510
879161281,4sleep0879306-21df20:05:130
872231280,1sleep20-21swapper/219:58:022
829292281,4sleep2830254-21tr19:25:192
821415281,4sleep1821187-21sendmail-msp19:20:121
821415281,4sleep1821187-21sendmail-msp19:20:111
805234281,4sleep0805277-21ntpq19:05:190
802234281,4sleep1804050-21cut19:05:171
1268180281,4sleep21268186-21ssh00:23:152
1236428280,1sleep00-21swapper/000:02:160
1235445280,5sleep2249-21jbd2/sda2-800:00:302
1228584281,4sleep01228590-21ssh23:57:420
1220739282,3sleep1222-21plymouthd23:52:551
1192972280,4sleep21194678-21ssh23:35:202
1164217281,4sleep01164255-21ntp_states23:15:250
1157364281,4sleep11157370-21ssh23:11:451
1156290282,3sleep21156329-21ntpq23:10:212
1148360281,4sleep11148502-21ntpq23:05:241
1135900281,4sleep21135099-21sendmail-msp23:00:192
1127992281,4sleep11128374-21sed22:55:181
1127081280,6sleep20-21swapper/222:54:352
1102902280,2sleep11102908-21ssh22:37:501
1097091281,5sleep01097810-21kthreadcore22:35:160
1093831281,5sleep01094035-21unixbench-2d22:30:270
1087953280,1sleep20-21swapper/222:29:482
1072159280,2sleep0222-21plymouthd22:19:400
1063614281,4sleep11063618-21ssh22:12:481
1056565281,4sleep21056621-21munin-run22:09:592
1041200281,4sleep01041232-21/usr/sbin/munin22:00:120
1017560281,4sleep11017563-21apt-get21:45:121
1016141281,3sleep1222-21plymouthd21:42:051
985215270,4sleep1985221-21ssh21:23:281
975689270,4sleep2975734-21ssh21:15:272
956446270,4sleep1956739-21cut21:05:161
956084271,2sleep20-21swapper/221:05:132
949609271,4sleep10-21swapper/121:00:021
942892270,4sleep10-21swapper/120:54:021
936525270,4sleep0222-21plymouthd20:48:550
935667270,4sleep1935709-21ntpq20:45:241
904421271,3sleep134-21ksoftirqd/120:23:311
897745270,4sleep1222-21plymouthd20:16:001
891980270,4sleep0892134-21df_inode20:15:160
891942271,3sleep2891975-21apt-get20:15:132
883058271,4sleep2884160-21memory20:05:202
865840270,1sleep00-21swapper/019:52:230
855924270,5sleep0857756-21kthreadcore19:45:210
854027270,4sleep2854930-21cut19:45:192
846545270,4sleep1222-21plymouthd19:36:401
842077271,3sleep2843559-21cut19:35:172
840082270,4sleep0222-21plymouthd19:31:180
812327270,1sleep20-21swapper/219:10:592
1283324271,3sleep11283330-21sh00:31:361
1276966270,5sleep20-21swapper/200:30:052
1252951271,3sleep11252957-21ssh00:14:361
1248171270,4sleep01249862-21grep00:10:180
1243812270,1sleep10-21swapper/100:06:051
1228149270,1sleep20-21swapper/223:56:372
1219124271,3sleep21219216-21ntpq23:50:242
1180639270,4sleep2222-21plymouthd23:25:422
1173415270,4sleep21173421-21ssh23:22:242
1166083271,4sleep21135424-21kworker/u16:2+nfsiod23:19:082
1165559271,3sleep1222-21plymouthd23:17:431
1150325270,1sleep00-21swapper/023:08:480
1141668270,1sleep00-21swapper/023:01:300
1135415271,3sleep11135413-21apt-get23:00:141
1134222270,4sleep0222-21plymouthd22:57:410
1123797270,1sleep00-21swapper/022:50:190
1111944273,1sleep00-21swapper/022:45:140
1109400271,3sleep00-21swapper/022:40:240
1105425270,5sleep11105461-21kthreadcore22:40:181
1039726270,1sleep20-21swapper/221:56:492
1039429270,1sleep0222-21plymouthd21:56:020
1025468271,2sleep10-21swapper/121:50:151
1024045270,4sleep2222-21plymouthd21:47:032
1017148270,4sleep21017154-21ssh21:44:542
994602260,3sleep1995352-21grep21:30:181
993931261,2sleep0993942-21apt-get21:30:130
992325260,1sleep00-21swapper/021:26:280
986131260,3sleep10-21swapper/121:25:131
971964261,3sleep0973531-21kthreadcore21:15:210
962691260,3sleep0962891-21hddtemp_smartct21:10:160
949072260,3sleep2222-21plymouthd20:56:392
949055260,1sleep00-21swapper/020:56:250
943241261,2sleep1943274-21apt-get20:55:141
936867260,1sleep20-21swapper/220:50:062
929947260,3sleep10-21swapper/120:41:471
922842260,3sleep0922869-21ntpq20:35:240
904245260,1sleep00-21swapper/020:21:130
891060261,2sleep10-21swapper/120:10:281
884955260,1sleep10-21swapper/120:06:021
878820260,1sleep00-21swapper/020:04:370
870343260,3sleep0871283-21memory19:55:180
866350261,2sleep10-21swapper/119:55:121
865360260,4sleep1865539-21sed19:50:271
859346260,2sleep1222-21plymouthd19:46:141
820902260,1sleep10-21swapper/119:17:071
806502260,1sleep00-21swapper/019:10:090
1290367261,2sleep2222-21plymouthd00:35:252
1261229261,2sleep1222-21plymouthd00:20:091
1259438260,2sleep2222-21plymouthd00:15:522
1245626260,3sleep2222-21plymouthd00:10:122
1243755260,4sleep00-21swapper/000:05:560
1196335260,1sleep00-21swapper/023:35:410
1174660261,3sleep01174697-21apt-get23:25:120
1156815260,3sleep0222-21plymouthd23:10:280
1134438260,1sleep20-21swapper/222:58:152
1092121260,1sleep10-21swapper/122:30:201
1085830260,3sleep0222-21plymouthd22:25:220
1079471260,1sleep2222-21plymouthd22:22:592
1063181260,1sleep00-21swapper/022:11:350
1055102260,3sleep0222-21plymouthd22:05:490
1032067261,2sleep0222-21plymouthd21:52:260
1001674260,4sleep0222-21plymouthd21:35:090
999933250,3sleep20-21swapper/221:30:592
911172250,2sleep10-21swapper/120:30:121
1206167250,2sleep21206204-21apt-get23:45:142
1054335250,3sleep11054382-21ntpq22:05:211
1032258250,2sleep2222-21plymouthd21:53:002
1009506250,2sleep01009292-21appstreamcli21:40:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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