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2026-08-27 - 06:32
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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 Thu Aug 27, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17963842870,6sleep21664580-21kworker/u16:1+xprtiod00:35:182
1313276992724,1cyclictest0-21swapper/322:40:173
1313276992623,1cyclictest0-21swapper/323:20:003
1313276992421,1cyclictest0-21swapper/323:50:013
1313276992421,1cyclictest0-21swapper/323:40:183
1313276992421,1cyclictest0-21swapper/320:35:003
1313276992421,1cyclictest0-21swapper/319:55:013
1313276992421,1cyclictest0-21swapper/300:20:203
1313276992319,1cyclictest0-21swapper/321:20:143
131327699224,6cyclictest1634475-21turbostat22:55:003
131327699224,6cyclictest1634475-21turbostat22:55:003
1313276992219,1cyclictest0-21swapper/322:20:003
131327699221,16cyclictest1475638-21taskset21:11:273
131327699221,16cyclictest1475638-21taskset21:11:263
1313276992118,1cyclictest0-21swapper/323:30:013
1313276992111,7cyclictest17996012sleep300:38:283
131327699211,15cyclictest1601829-21taskset22:31:503
131327699211,15cyclictest1449388-21taskset20:50:263
131327699211,14cyclictest1430713-21taskset20:40:003
131327699211,14cyclictest1366642-21taskset19:50:003
131327699208,8cyclictest1547776-21turbostat22:00:013
1313276992017,1cyclictest0-21swapper/323:00:233
1313276992017,1cyclictest0-21swapper/322:00:183
1313276992017,1cyclictest0-21swapper/321:01:013
131327699201,15cyclictest1404867-21taskset20:18:393
131327699201,14cyclictest1745053-21sleep00:05:003
131327699201,14cyclictest1563275-21taskset22:09:253
131327699201,14cyclictest1532300-21taskset21:50:083
1313276991916,1cyclictest0-21swapper/321:40:233
1313276991916,1cyclictest0-21swapper/320:40:203
1313276991916,1cyclictest0-21swapper/319:30:163
1313276991916,1cyclictest0-21swapper/319:20:153
1313276991916,1cyclictest0-21swapper/300:10:003
1313276991916,1cyclictest0-21swapper/300:00:003
131327699191,14cyclictest1776898-21chrt00:25:123
131327699191,14cyclictest1579461-21taskset22:20:023
131327699191,14cyclictest1570296-21taskset22:12:053
131327699191,14cyclictest1359304-21taskset19:40:303
131327699191,13cyclictest1695370-21taskset23:30:243
1313276991815,1cyclictest0-21swapper/319:25:153
131327699181,13cyclictest1761058-21taskset00:15:103
131327699181,13cyclictest1680211-21taskset23:20:373
131327699181,13cyclictest1664950-21taskset23:12:163
131327699181,13cyclictest1641438-21taskset22:57:283
131327699181,13cyclictest1442965-21chrt20:45:253
131327699181,13cyclictest1411487-21taskset20:25:013
131327699181,13cyclictest1398452-21taskset20:13:183
131327699181,13cyclictest1379633-21chrt20:00:113
131327699181,13cyclictest1347792-21taskset19:35:133
131327699181,13cyclictest1322069-21taskset19:15:133
131327699181,12cyclictest1508517-21taskset21:35:013
131327699180,13cyclictest1587537-21chrt22:25:133
16975452171,6sleep21697604-21munin-run23:35:012
131327699172,11cyclictest1650825-21taskset23:05:143
1313276991714,1cyclictest0-21swapper/321:15:273
1313276991714,1cyclictest0-21swapper/319:55:203
131327699171,13cyclictest1785754-21taskset00:30:143
131327699171,13cyclictest1760316-21taskset00:13:543
131327699171,13cyclictest1728096-21taskset23:52:253
131327699171,13cyclictest1704247-21taskset23:36:453
131327699171,13cyclictest1499633-21taskset21:27:233
131327699171,13cyclictest1450113-21taskset20:55:033
131327699171,13cyclictest1389728-21taskset20:05:203
131327699171,13cyclictest1319729-21chrt19:15:013
131327699171,12cyclictest1609158-21taskset22:35:353
131327699171,12cyclictest1524452-21taskset21:45:073
131327699171,12cyclictest1514574-21chrt21:35:293
131327699171,12cyclictest1468699-21taskset21:05:303
131327699171,12cyclictest1417530-21taskset20:25:533
15941212160,9sleep244-21ksoftirqd/222:27:172
131327699161,12cyclictest1625599-21taskset22:47:263
13130602160,2sleep30-21swapper/319:09:003
14855192151,2sleep20-21swapper/221:20:172
17138792141,10sleep21714061-21grep23:45:152
16500922140,7sleep11650100-21ssh23:04:281
16085022142,3sleep21608547-21ntpq22:35:232
15541112141,9sleep11547821-21sendmail-msp22:00:421
14363282140,1sleep00-21swapper/020:40:250
17917262130,2sleep10-21swapper/100:33:291
16571992130,6sleep01657207-21ssh23:07:280
17842932120,9sleep21784299-21ssh00:29:422
17684532124,5sleep01768458-21diskmemload00:19:330
17436972120,9sleep11743701-21ssh00:01:221
15084342120,6sleep21508513-21latency_hist21:35:012
13336282121,9sleep2222-21plymouthd19:20:222
13189072126,3sleep00-21swapper/019:10:260
16818122110,8sleep01681864-21923:25:010
16725512110,8sleep21672557-21ssh23:16:252
16568132111,2sleep1222-21plymouthd23:06:211
16407032110,4sleep21640709-21ssh22:55:322
14566602112,6sleep01456286-21sendmail-msp21:00:150
14052902110,3sleep2222-21plymouthd20:20:082
14002572111,7sleep11401822-21kthreadcore20:15:171
13720792111,7sleep11372109-21gcc19:50:241
13551992110,2sleep1222-21plymouthd19:40:251
17523652100,7sleep21752369-21ssh00:08:362
16501822100,3sleep21650188-21ssh23:04:502
15402542101,5sleep11540268-21ssh21:55:131
15308842102,4sleep2222-21plymouthd21:46:562
15152702100,3sleep21515276-21ssh21:37:212
14906562100,7sleep11490788-21mailstats21:20:281
14501622100,8sleep21450126-21/usr/sbin/munin20:55:162
14441402100,7sleep01444665-21irqcore20:50:160
14373602101,5sleep01437392-21apt-get20:45:110
13655532100,7sleep01365645-21collect219:45:220
13298042101,6sleep11331122-21cat19:20:171
1794809292,4sleep11673938-21kworker/u16:3+nfsiod00:35:181
1776115290,1sleep00-21swapper/000:23:580
1767711291,6sleep20-21swapper/200:17:302
1759235290,1sleep00-21swapper/000:10:550
1751718292,4sleep0222-21plymouthd00:06:500
1744778290,6sleep21744751-40updatedb.plocat00:04:242
1743690290,6sleep01743696-21ssh00:01:210
1729363290,5sleep1222-21plymouthd23:55:121
1726734291,5sleep014-21ksoftirqd/023:50:220
1707236292,4sleep2249-21jbd2/sda2-823:40:182
1704253290,6sleep01704261-21ssh23:36:460
1703287291,5sleep11703341-21wc23:35:241
1696164295,2sleep0151ktimers/023:31:140
1634825291,6sleep00-21swapper/022:55:140
1633457290,2sleep2222-21plymouthd22:52:192
1633457290,2sleep2222-21plymouthd22:52:192
1625931292,4sleep2222-21plymouthd22:48:182
1617088291,5sleep11610858-21sendmail-msp22:40:351
1616339291,6sleep2872-21in:imuxsock22:40:202
1608651291,5sleep11608772-21python322:35:261
1566212290,7sleep01567850-21tr22:10:190
1563830291,4sleep10-21swapper/122:10:121
1554068290,6sleep21547821-21sendmail-msp22:00:342
1539312290,2sleep0222-21plymouthd21:53:270
1532351290,5sleep21532355-21ssh21:50:122
1523711290,2sleep00-21swapper/021:43:530
1477254291,4sleep21477289-21apt-get21:15:122
1474662291,4sleep01474709-21ntpq21:10:210
1474662291,4sleep01474709-21ntpq21:10:210
1425468292,5sleep10-21swapper/120:35:181
1418587291,5sleep11419518-21irqstats20:30:161
1411789291,4sleep21411791-21apt-get20:25:132
1392156290,2sleep2222-21plymouthd20:09:412
1353996293,4sleep20-21swapper/219:40:022
1346373291,4sleep11346410-21ntpq19:30:231
1328005290,2sleep0222-21plymouthd19:18:430
1321986291,4sleep11322019-21apt-get19:15:111
1312924290,2sleep20-21swapper/219:07:152
1782124281,4sleep01782167-21ntpq00:25:230
1775032281,4sleep11775038-21ssh00:20:551
1758276281,4sleep11758409-21ssh00:10:201
1735989282,4sleep21664580-21kworker/u16:1+nfsiod23:57:262
1715103281,4sleep11716461-21cut23:45:171
1706607281,4sleep11705480-21sendmail-msp23:40:171
1698873280,1sleep21699883-21kthreadcore23:35:172
1696416280,5sleep11696422-21ssh23:31:511
1689557280,5sleep01469076-21diskmemload23:29:420
1689515281,4sleep2222-21plymouthd23:29:362
1681375282,3sleep11681379-21ssh23:23:531
1671665281,4sleep11671706-21ntpq23:15:271
1652045280,5sleep21653232-21cut23:05:182
1600598281,4sleep11600690-21ntpq22:30:211
1563506285,1sleep20-21swapper/222:10:012
1554183282,3sleep0222-21plymouthd22:00:530
1547313281,3sleep0222-21plymouthd21:58:520
1525471281,4sleep01526350-21tr21:45:170
1521991281,4sleep21516324-21sendmail-msp21:40:262
1516561281,4sleep11516324-21sendmail-msp21:40:041
1501116280,1sleep10-21swapper/121:30:191
1498278281,5sleep20-21swapper/221:25:232
1469628281,4sleep11469803-21hddtemp_smartct21:10:141
1469628281,4sleep11469803-21hddtemp_smartct21:10:141
1469416280,4sleep2222-21plymouthd21:10:112
1469416280,4sleep2222-21plymouthd21:10:112
1462409280,4sleep2222-21plymouthd21:01:242
1459182280,5sleep1249-21jbd2/sda2-821:00:201
1442535280,5sleep21442579-21ntpq20:45:212
1411940281,4sleep01411967-21fschecks_count20:25:150
1397703281,4sleep01397741-21ntp_states20:10:220
1392459280,4sleep1222-21plymouthd20:10:121
1373416281,4sleep01373616-21hddtemp_smartct19:55:160
1368965280,5sleep01370725-21kthreadcore19:50:190
1363242280,5sleep21365048-21tr19:45:202
1340076280,5sleep21340118-21ntpq19:25:232
1339936281,4sleep01340030-21ntpq19:25:210
1327766280,2sleep2222-21plymouthd19:15:412
1798665271,3sleep01798671-21ssh00:35:570
1791293270,4sleep21791299-21ssh00:32:222
1775707270,2sleep21775713-21ssh00:22:482
1745308271,2sleep1222-21plymouthd00:05:021
1727806270,4sleep21727812-21ssh23:51:412
1712057271,4sleep01712062-21sshd-session23:41:280
1689063270,4sleep1222-21plymouthd23:28:181
1672384270,1sleep00-21swapper/023:15:580
1665072270,4sleep11665074-21ssh23:12:351
1658421271,3sleep21658454-21apt-get23:10:102
1649956270,5sleep00-21swapper/023:04:080
1632796271,3sleep1222-21plymouthd22:50:331
1632796271,3sleep1222-21plymouthd22:50:321
1614550271,3sleep01547840-21kworker/u16:0+xprtiod22:40:180
1596841270,4sleep21598284-21cut22:30:182
1595410270,4sleep0222-21plymouthd22:30:120
1594461270,3sleep1222-21plymouthd22:28:161
1586789271,3sleep0222-21plymouthd22:23:580
1578774270,1sleep20-21swapper/222:18:512
1576985271,3sleep01577027-21ntpq22:15:240
1572128270,4sleep11572995-21cut22:15:171
1570689270,1sleep20-21swapper/222:13:142
1540205270,5sleep21540211-21ssh21:55:102
1532313271,3sleep11532348-21apt-get21:50:101
1524465270,1sleep10-21swapper/121:45:101
1507842270,1sleep0222-21plymouthd21:33:250
1485092270,4sleep01484845-21sendmail-msp21:20:060
1479748271,4sleep1222-21plymouthd21:15:191
1469004270,1sleep00-21swapper/021:09:210
1450161270,3sleep1222-21plymouthd20:55:151
1450125271,3sleep0222-21plymouthd20:55:140
1445464271,3sleep20-21swapper/220:50:172
1443200270,1sleep10-21swapper/120:46:291
1437067271,3sleep1222-21plymouthd20:44:431
1430971271,4sleep20-21swapper/220:40:122
1430648271,3sleep286662-21systemctl20:40:002
1423350270,4sleep01423388-21ntp_states20:30:240
1385674270,1sleep00-21swapper/020:03:260
1380060271,3sleep21380707-21sed20:00:152
1379385271,3sleep11379371-21sendmail-msp20:00:021
1373220270,3sleep1222-21plymouthd19:55:131
1366893270,3sleep2222-21plymouthd19:50:132
1359853270,4sleep01353782-21sendmail-msp19:40:450
1353518270,1sleep00-21swapper/019:37:240
1347643270,3sleep1222-21plymouthd19:35:121
1347172270,1sleep20-21swapper/219:32:532
1341281271,2sleep00-21swapper/019:30:140
1334247271,3sleep01328165-21sendmail-msp19:21:000
1318448271,2sleep20-21swapper/219:10:202
1312173271,3sleep01312213-21ntpq19:05:190
1791646260,3sleep0222-21plymouthd00:33:160
1767437260,1sleep10-21swapper/100:16:461
1759089260,2sleep2222-21plymouthd00:10:332
1721496261,2sleep10-21swapper/123:50:111
1713708261,2sleep01713716-21/usr/sbin/munin23:45:120
1679624261,2sleep21679649-21ntpq23:20:252
1663675261,3sleep01663723-21ntpq23:10:210
1634053260,1sleep00-21swapper/022:53:570
1634053260,1sleep00-21swapper/022:53:570
1625967260,4sleep0222-21plymouthd22:48:230
1624634260,1sleep10-21swapper/122:45:241
1587429261,3sleep0222-21plymouthd22:25:030
1584795261,3sleep21579229-21sendmail-msp22:20:232
1584506260,4sleep11579518-21/usr/sbin/munin22:20:221
1562933260,1sleep10-21swapper/122:08:241
1561478260,4sleep01561556-21ls22:05:260
1509212261,2sleep10-21swapper/121:35:161
1496600260,1sleep00-21swapper/021:25:210
1493082260,3sleep11493088-21ssh21:25:141
1482745261,3sleep01482825-21python321:15:260
1468185261,3sleep11468216-21ntpq21:05:251
1467950260,3sleep21468090-21ntpq21:05:222
1449559260,1sleep10-21swapper/120:51:141
1430413260,1sleep00-21swapper/020:36:570
1419519260,4sleep21420424-21kthreadcore20:30:182
1411364260,1sleep00-21swapper/020:23:250
1405334260,2sleep10-21swapper/120:20:141
1404767260,1sleep20-21swapper/220:17:232
1398890260,3sleep0222-21plymouthd20:15:120
1393402260,4sleep20-21swapper/220:10:172
1391907260,1sleep10-21swapper/120:06:271
1386061260,1sleep00-21swapper/020:05:060
1379239260,1sleep20-21swapper/219:59:072
1353639260,3sleep2222-21plymouthd19:38:572
1340775260,1sleep10-21swapper/119:27:251
1319252260,2sleep1222-21plymouthd19:10:391
1308922260,3sleep11310672-21kthreadcore19:05:171
1782169250,2sleep10-21swapper/100:25:241
1735614250,2sleep01735620-21sshd-auth23:56:280
1636581251,2sleep10-21swapper/122:55:191
1609139250,2sleep0222-21plymouthd22:35:320
1508749250,2sleep00-21swapper/021:35:110
1417533250,2sleep1222-21plymouthd20:25:561
1361859250,2sleep10-21swapper/119:45:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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