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2026-05-27 - 12:23
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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 792 highest latencies:
System rackeslot8.osadl.org (updated Wed May 27, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111746821230,1sleep10-21swapper/120:55:251
975422993027,1cyclictest0-21swapper/319:40:003
975422992926,1cyclictest0-21swapper/320:10:003
975422992824,1cyclictest0-21swapper/322:35:013
975422992618,5cyclictest1185471-21sleep21:45:003
975422992522,1cyclictest0-21swapper/323:40:213
975422992421,1cyclictest0-21swapper/321:10:173
975422992420,1cyclictest0-21swapper/321:50:223
975422992320,1cyclictest0-21swapper/320:20:013
975422992219,1cyclictest0-21swapper/321:00:003
975422992218,1cyclictest0-21swapper/323:45:243
97542299221,15cyclictest1146740-21taskset21:20:013
975422992118,1cyclictest0-21swapper/321:05:293
975422992118,1cyclictest0-21swapper/319:20:183
975422992118,1cyclictest0-21swapper/300:15:003
975422992114,3cyclictest10217492sleep319:40:263
97542299208,7cyclictest10022112sleep319:25:233
97542299202,14cyclictest1009221-21taskset19:32:123
975422992018,1cyclictest0-21swapper/322:15:013
975422992017,1cyclictest0-21swapper/323:15:233
975422992017,1cyclictest0-21swapper/322:20:013
975422992017,1cyclictest0-21swapper/321:30:003
975422992011,7cyclictest14029912sleep300:05:163
97542299201,14cyclictest1270743-21taskset22:39:553
97542299192,13cyclictest1455388-21taskset00:35:303
975422991916,1cyclictest0-21swapper/323:11:443
975422991916,1cyclictest0-21swapper/323:05:123
975422991916,1cyclictest0-21swapper/322:59:333
975422991916,1cyclictest0-21swapper/320:05:013
975422991916,1cyclictest0-21swapper/300:20:123
97542299191,14cyclictest979731-21taskset19:10:193
97542299191,14cyclictest1439586-21taskset00:25:243
97542299191,14cyclictest1356366-21taskset23:35:133
97542299191,12cyclictest1278771-21taskset22:45:003
97542299188,7cyclictest10288912sleep319:50:133
97542299182,12cyclictest1209066-21taskset22:00:063
97542299182,12cyclictest1191702-21taskset21:45:303
97542299182,12cyclictest1092522-21taskset20:37:473
975422991816,1cyclictest0-21swapper/323:55:343
975422991816,1cyclictest0-21swapper/321:00:043
975422991816,1cyclictest0-21swapper/319:20:003
975422991815,1cyclictest0-21swapper/322:55:003
975422991815,1cyclictest0-21swapper/321:40:003
975422991815,1cyclictest0-21swapper/320:50:003
975422991815,1cyclictest0-21swapper/320:25:243
975422991815,1cyclictest0-21swapper/300:00:203
97542299181,13cyclictest1385543-21taskset23:50:403
97542299181,13cyclictest1348540-21taskset23:30:073
97542299181,13cyclictest1341060-21taskset23:25:153
97542299181,13cyclictest1308984-21taskset23:03:413
97542299181,13cyclictest1247886-21taskset22:25:043
97542299181,13cyclictest1223039-21taskset22:06:153
97542299181,13cyclictest1152932-21taskset21:20:453
97542299181,13cyclictest1060307-21taskset20:11:183
97542299181,13cyclictest1041384-21turbostat20:00:003
97542299181,13cyclictest1024024-21taskset19:45:153
97542299181,12cyclictest1080227-21taskset20:30:133
975422991810,5cyclictest14186052sleep300:15:143
97542299172,12cyclictest1277737-21taskset22:42:443
97542299172,12cyclictest1207796-21taskset21:57:053
97542299172,12cyclictest1105717-21taskset20:50:023
975422991714,1cyclictest0-21swapper/322:25:013
975422991714,1cyclictest0-21swapper/320:40:023
975422991714,1cyclictest0-21swapper/300:30:173
97542299171,12cyclictest1339493-21taskset23:22:013
97542299171,12cyclictest1162478-21taskset21:30:073
11444782171,5sleep21144520-21ntpq21:15:232
97542299161,11cyclictest1069541-21chrt20:20:193
10918072152,10sleep01091845-21ntpq20:35:250
9696102141,3sleep20-21swapper/219:05:182
14392992144,3sleep014-21ksoftirqd/000:25:220
11174282140,4sleep01117467-21open_inodes20:55:250
11996252130,9sleep21199629-21ssh21:51:002
11949562130,9sleep11195914-21cut21:50:201
11940192131,9sleep01194955-21sed21:50:180
9903642121,8sleep2990360-21sendmail-msp19:20:012
14401752120,9sleep11440179-21ssh00:26:311
13539002121,8sleep11353950-21ld23:30:221
13006512121,8sleep11300655-21ssh22:56:551
12865992122,7sleep21286596-21apt-get22:50:142
12542092121,8sleep21254217-21ssh22:26:442
12320422121,8sleep11232056-21cron22:15:001
11870932120,5sleep01188001-21kthreadcore21:45:160
11846062120,9sleep01184612-21ssh21:42:370
10416432120,4sleep286188-21systemd-journal20:00:072
9752552110,2sleep30-21swapper/319:09:573
14504242110,8sleep21451148-21cut00:35:182
14438862114,4sleep01445531-21grep00:30:190
14161732112,6sleep01416281-21cat00:10:260
14103102110,8sleep11410315-21ssh00:09:551
13071822110,8sleep21307279-21ld23:00:202
12746742110,4sleep21276169-21cat22:40:192
12455852110,8sleep21245712-21cut22:20:282
12173452110,1sleep20-21swapper/222:05:142
13563372101,6sleep20-21swapper/223:35:122
13489782101,6sleep21349437-21irqcore23:30:152
13254952101,6sleep1222-21plymouthd23:15:141
13024622100,7sleep11302671-21cut23:00:151
12645932100,7sleep01265510-21grep22:35:170
12493062100,7sleep01249567-21kthreadcore22:25:180
12301692101,6sleep01230433-21unixbench_singl22:10:260
12135332101,6sleep10-21swapper/122:00:221
11695372101,7sleep20-21swapper/221:33:442
11676622101,6sleep11167804-21/usr/sbin/munin21:30:221
11307752100,2sleep2222-21plymouthd21:06:342
11059272101,6sleep01106092-21gltestperf20:50:160
11057672100,7sleep21105732-21/usr/sbin/munin20:50:142
10494622100,7sleep11050762-21kthreadcore20:05:181
10407522101,5sleep21040996-21users19:55:252
10213042101,6sleep21021347-21ntpq19:40:232
10131582100,7sleep01014706-21cat19:35:180
981127291,5sleep2981374-21/usr/sbin/munin19:10:272
975607291,4sleep0975603-21apt-get19:10:140
975258291,4sleep0222-21plymouthd19:09:570
1449524291,4sleep11449527-21apt-get00:35:131
1441706291,4sleep11441741-21apt-get00:30:121
1441156295,2sleep20-21swapper/200:29:212
1416284291,5sleep11416547-21grep00:10:281
1373742294,2sleep10-21swapper/123:45:171
1372833290,6sleep01373308-21kthreadcore23:45:160
1316536291,6sleep00-21swapper/023:08:080
1301255290,7sleep21301260-21sh22:58:402
1270101290,6sleep11270107-21ssh22:38:061
1254037290,3sleep11254041-21ssh22:26:151
1245020290,6sleep11245386-21needreboot22:20:221
1217185290,6sleep11217344-21cat22:05:141
1208755291,5sleep10-21swapper/122:00:011
1188005290,6sleep11189646-21kthreadcore21:45:171
1145340290,6sleep11145348-21ssh21:16:191
1137378292,4sleep1222-21plymouthd21:10:451
1111006292,4sleep11111032-21ntpq20:50:251
1102951290,6sleep11099370-21/usr/sbin/munin20:45:201
1086032290,1sleep10-21swapper/120:31:481
1080202292,4sleep21080224-21apt-get20:30:132
1059713291,4sleep11059750-21ntpq20:10:231
1056110290,6sleep01057823-21grep20:10:180
990099280,2sleep2222-21plymouthd19:17:242
1417867280,2sleep21417873-21ssh00:14:172
1409388280,5sleep21409394-21ssh00:07:082
1401838281,4sleep01401835-40updatedb.plocat00:02:460
1387379281,3sleep11387382-21apt-get23:55:121
1385872280,2sleep21385878-21ssh23:51:362
1384735281,4sleep01384839-21ntpq23:50:230
1377192281,3sleep21377230-21ntpq23:45:232
1361594280,5sleep00-21swapper/023:35:220
1359435281,4sleep11361182-21ssh23:35:191
1340897281,4sleep21341059-21diskstats23:25:152
1340853282,3sleep01340886-21apt-get23:25:120
1339318282,4sleep11325249-21kworker/u16:3+rpciod23:21:321
1331835280,2sleep21331839-21ssh23:17:212
1322705281,4sleep21322829-21ntpq23:10:222
1320427281,5sleep0222-21plymouthd23:10:200
1278872281,3sleep2222-21plymouthd22:45:122
1276328281,4sleep01276367-21ntpq22:40:210
1255657280,3sleep0222-21plymouthd22:30:110
1232433281,4sleep01232439-21ssh22:15:110
1207739280,5sleep21207743-21ssh21:56:572
1177510282,4sleep21145765-21kworker/u16:1+nfsiod21:39:292
1169917281,1sleep0171rcu_preempt21:34:550
1160984280,1sleep00-21swapper/021:26:320
1156114281,4sleep2222-21plymouthd21:25:182
1152484280,5sleep01152573-21cat21:20:280
1146921281,3sleep11146954-21apt-get21:20:111
1130109281,4sleep01130146-21ntpq21:05:230
1124492280,1sleep00-21swapper/021:02:500
1120003281,4sleep11121663-21tr21:00:191
1101281281,4sleep01102950-21tr20:45:180
1098839281,4sleep2222-21plymouthd20:41:402
1086617281,3sleep11086619-21apt-get20:35:141
1078973281,4sleep01079014-21ntpq20:25:230
1073432280,6sleep20-21swapper/220:24:002
1067113280,5sleep10-21swapper/120:20:021
1060296281,4sleep2222-21plymouthd20:11:092
1048096280,5sleep0222-21plymouthd20:05:130
1035282281,4sleep11035432-21df_inode19:55:121
1015826280,5sleep11016026-21latency_hist19:40:011
1003354281,3sleep21003376-21apt-get19:30:112
982152270,4sleep0983259-21kthreadcore19:15:020
981607270,5sleep1981609-21sshd-auth19:13:181
975156270,2sleep1222-21plymouthd19:08:371
1449712271,3sleep01449917-21hddtemp_smartct00:35:160
1447866270,5sleep21409056-21kworker/u16:0+xprtiod00:31:142
1433534270,3sleep1222-21plymouthd00:24:481
1426408270,4sleep21426542-21gltestperf00:20:162
1425573270,1sleep20-21swapper/200:19:142
1425520271,3sleep1222-21plymouthd00:19:051
1409900270,1sleep00-21swapper/000:08:380
1400785271,3sleep10-21swapper/100:00:301
1393406270,4sleep21393412-21ssh23:56:052
1379592270,1sleep10-21swapper/123:50:111
1371077270,1sleep10-21swapper/123:43:451
1348546270,4sleep01348554-21ssh23:30:090
1333124271,3sleep2222-21plymouthd23:20:132
1331674270,1sleep00-21swapper/023:16:540
1322924271,3sleep11322955-21ntpq23:10:251
1313895270,4sleep11314825-21memory23:05:211
1300970271,3sleep0222-21plymouthd22:57:530
1293467270,1sleep00-21swapper/022:53:320
1285389270,1sleep00-21swapper/022:47:320
1276369270,3sleep11276413-21ssh22:40:221
1256607270,4sleep11257343-21grep22:30:161
1234583271,3sleep21236243-21ssh22:15:172
1219331270,4sleep01220984-21grep22:05:170
1211935270,5sleep01213531-21grep22:00:200
1203417270,4sleep01205046-21cut21:55:190
1183139270,4sleep11183259-21ntpq21:40:211
1160087270,4sleep1222-21plymouthd21:25:251
1147401270,4sleep21148145-21cut21:20:162
1113545271,3sleep20-21swapper/220:55:202
1099783273,2sleep21100348-21irqrtprio20:45:172
1091886270,4sleep21092008-21python320:35:262
1079656270,1sleep20-21swapper/220:26:362
1065141270,4sleep01065906-21memory20:15:210
1046857270,4sleep01046889-21ntp_states20:00:240
1035281270,4sleep0222-21plymouthd19:55:110
1022505271,2sleep11022532-21apt-get19:45:101
1017069270,4sleep11017912-21tr19:40:181
1005234271,3sleep00-21swapper/019:30:170
1002841270,1sleep00-21swapper/019:27:050
1002165270,4sleep21002210-21ntpq19:25:222
1002124271,3sleep11002158-21ntpq19:25:211
990984260,3sleep1991101-21sed19:20:171
990057260,1sleep10-21swapper/119:16:551
1393966260,1sleep00-21swapper/023:57:430
1364095261,2sleep01364132-21apt-get23:40:120
1347237260,1sleep10-21swapper/123:27:011
1310242260,4sleep20-21swapper/223:05:182
1307326260,3sleep01307379-21ntp_states23:00:220
1292629260,4sleep11067119-21kworker/u16:4+rpciod22:51:091
1285195260,1sleep10-21swapper/122:47:011
1263349261,3sleep21263382-21apt-get22:35:102
1262798260,3sleep2222-21plymouthd22:34:182
1240225260,3sleep01240239-21cat22:20:130
1216171260,3sleep21216175-21ssh22:04:002
1191128260,3sleep21191171-21ntp_states21:45:222
1179472260,4sleep21180733-21cut21:40:172
1175519261,2sleep10-21swapper/121:35:231
1170328260,4sleep01170479-21sh21:35:140
1145235260,3sleep0222-21plymouthd21:16:010
1137831260,1sleep20-21swapper/221:12:072
1131379260,4sleep00-21swapper/021:10:120
1130400261,3sleep11130640-21unixbench_singl21:05:281
1094289261,2sleep00-21swapper/020:40:170
1073770260,2sleep1222-21plymouthd20:25:031
1067336260,3sleep01067369-21apt-get20:20:130
1066049261,3sleep21066088-21ntpq20:15:222
1060904260,3sleep1222-21plymouthd20:15:131
1053284260,4sleep21053331-21ntp_states20:05:232
1047435260,1sleep10-21swapper/120:01:011
1034964261,3sleep10-21swapper/119:54:521
1034948260,4sleep00-21swapper/019:54:390
1034771260,3sleep2222-21plymouthd19:52:212
1023119261,3sleep21024022-21kthreadcore19:45:152
1016110260,1sleep00-21swapper/019:40:080
1015691260,3sleep2222-21plymouthd19:38:172
1009108260,1sleep10-21swapper/119:30:471
996466250,3sleep00-21swapper/019:21:560
1432229250,1sleep0222-21plymouthd00:20:530
1418444250,2sleep01418168-21apt-get00:15:030
1401459250,2sleep2222-21plymouthd00:01:422
1369307250,2sleep2222-21plymouthd23:40:212
1333305250,2sleep0222-21plymouthd23:20:150
1233649250,2sleep10-21swapper/122:15:161
1224672251,2sleep20-21swapper/222:10:132
1124373250,2sleep2222-21plymouthd21:01:202
1094887250,2sleep11096551-21kthreadcore20:40:181
1081637250,2sleep00-21swapper/020:30:190
1028248250,2sleep0222-21plymouthd19:45:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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