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2026-04-18 - 15:49
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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 Sat Apr 18, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1682502993229,1cyclictest0-21swapper/312:20:003
1682502993229,1cyclictest0-21swapper/312:20:003
1682502993128,1cyclictest0-21swapper/310:45:003
1682502993026,1cyclictest0-21swapper/310:20:003
1682502992825,1cyclictest0-21swapper/310:40:003
1682502992623,1cyclictest0-21swapper/309:30:003
129998250,2rtkit-daemon222-21plymouthd09:07:422
1682502992421,1cyclictest0-21swapper/310:08:513
168250299232,16cyclictest1780991-21taskset08:24:323
1682502992320,1cyclictest0-21swapper/311:15:143
16882792220,1sleep2421rcuc/207:10:262
1682502992118,1cyclictest0-21swapper/310:05:013
1682502992118,1cyclictest0-21swapper/309:20:183
168250299202,14cyclictest2147374-21taskset12:25:233
168250299202,14cyclictest2062653-21taskset11:31:143
168250299202,13cyclictest1813500-21taskset08:50:023
168250299201,14cyclictest2025080-21taskset11:09:413
168250299201,14cyclictest2009682-21taskset10:59:563
168250299192,13cyclictest1915358-21taskset09:56:163
1682502991917,1cyclictest0-21swapper/310:25:133
1682502991917,1cyclictest0-21swapper/309:40:003
1682502991916,1cyclictest0-21swapper/310:30:163
1682502991916,1cyclictest0-21swapper/310:20:263
1682502991916,1cyclictest0-21swapper/310:15:003
1682502991916,1cyclictest0-21swapper/308:25:213
1682502991915,1cyclictest0-21swapper/311:40:023
168250299191,14cyclictest2117003-21taskset12:06:193
168250299191,14cyclictest1986759-21taskset10:45:133
168250299182,12cyclictest1697131-21taskset07:16:333
1682502991816,0cyclictest0-21swapper/308:15:003
1682502991815,1cyclictest0-21swapper/312:20:193
1682502991815,1cyclictest0-21swapper/311:10:183
1682502991815,1cyclictest0-21swapper/307:20:273
168250299181,14cyclictest2087192-21sleep11:54:553
168250299181,14cyclictest1907380-21taskset09:50:323
168250299181,14cyclictest1749129-21taskset08:00:063
168250299181,14cyclictest1729417-21taskset07:43:193
168250299181,13cyclictest2155700-21taskset12:30:403
168250299181,13cyclictest2125416-21taskset12:13:243
168250299181,13cyclictest2108361-21taskset12:00:213
168250299181,13cyclictest2050833-21taskset11:25:173
168250299181,13cyclictest2047802-21taskset11:23:123
168250299181,13cyclictest1899852-21taskset09:46:143
168250299181,13cyclictest1839350-21chrt09:10:153
168250299181,13cyclictest1826049-21taskset08:59:593
168250299181,13cyclictest1806710-21taskset08:43:283
168250299181,13cyclictest1800234-21taskset08:37:553
168250299181,13cyclictest1768506-21chrt08:15:153
168250299181,13cyclictest1761563-21taskset08:08:093
20644222170,8sleep12064602-21tail11:35:151
168250299178,6cyclictest20005422sleep310:50:543
168250299178,6cyclictest17488212sleep307:59:443
168250299172,12cyclictest2158909-21chrt12:35:183
168250299172,12cyclictest1832361-21taskset09:02:413
168250299172,11cyclictest2079714-21taskset11:45:063
1682502991714,1cyclictest0-21swapper/308:45:153
168250299171,13cyclictest1854039-21taskset09:18:283
168250299171,13cyclictest1854039-21taskset09:18:283
168250299171,13cyclictest1838624-21taskset09:05:413
168250299171,12cyclictest2070360-21taskset11:36:073
168250299171,12cyclictest2015911-21taskset11:00:283
168250299171,12cyclictest2015911-21taskset11:00:273
168250299171,12cyclictest1887841-21taskset09:40:183
168250299171,12cyclictest1870344-21taskset09:30:063
168250299171,12cyclictest1730047-21taskset07:45:163
168250299171,12cyclictest1730047-21taskset07:45:153
168250299171,12cyclictest1704054-21taskset07:25:063
19265782161,8sleep014-21ksoftirqd/010:05:170
1682502991613,1cyclictest0-21swapper/307:50:233
168250299161,12cyclictest2101211-21taskset11:55:333
168250299161,12cyclictest1793576-21taskset08:30:413
168250299161,12cyclictest1716929-21chrt07:35:133
168250299161,12cyclictest1716396-21taskset07:32:043
168250299161,12cyclictest1688640-21taskset07:12:323
17624512151,11sleep21763241-21cut08:10:162
21329672141,2sleep20-21swapper/212:17:452
21329672141,2sleep20-21swapper/212:17:452
20868552142,5sleep2222-21plymouthd11:49:112
20773472141,9sleep02077395-21ntpq11:40:220
20022592141,10sleep10-21swapper/110:55:131
18260332141,5sleep21826045-21unix_chkpwd08:59:592
21340812131,3sleep02134114-21apt-get12:20:110
129998130,9rtkit-daemon2055334-21ssh11:27:292
20463762120,9sleep12046407-21ntpq11:20:231
19377852120,4sleep11937833-21ssh10:10:231
17620082121,8sleep11762009-21/usr/sbin/munin08:10:111
129998120,3rtkit-daemon1876448-21ssh09:30:582
129998120,2rtkit-daemon222-21plymouthd08:16:052
21347072110,8sleep12134082-21/usr/sbin/munin12:20:161
21247642117,2sleep00-21swapper/012:11:260
21181412110,2sleep0222-21plymouthd12:09:450
19165882110,8sleep11-21systemd10:00:001
18534312112,5sleep2222-21plymouthd09:16:432
18534312112,5sleep2222-21plymouthd09:16:432
18463332110,8sleep20-21swapper/209:13:432
18092792110,4sleep11811074-21grep08:45:191
129998110,7rtkit-daemon364-21systemd-udevd10:10:330
129998110,7rtkit-daemon2195379-21ntpd11:31:002
129998110,7rtkit-daemon1906820-21ntpq09:50:262
129998110,6rtkit-daemon1900937-21ssh09:49:302
129998110,2rtkit-daemon222-21plymouthd08:36:462
21319262100,7sleep02132173-21uptime12:15:270
21319262100,7sleep02132173-21uptime12:15:260
20956952100,7sleep22096478-21irqrtprio11:55:172
20656662100,2sleep00-21swapper/011:35:170
20406162100,7sleep01000-21snmpd11:19:590
20314722100,7sleep12031476-21ssh11:10:491
19937232105,3sleep0151ktimers/010:48:340
19598362100,7sleep21960834-21memory10:25:202
18260242105,3sleep11058-21gmain08:59:541
17749042100,7sleep11774930-21cat08:20:111
17641602100,7sleep01765945-21kthreadcore08:10:190
17035982100,3sleep0222-21plymouthd07:22:330
16837512102,5sleep01684095-21kthreadcore07:10:180
16762592102,3sleep11676261-21apt-get07:05:131
129998100,6rtkit-daemon739-21wpa_supplicant10:37:561
129998100,6rtkit-daemon1946591-21ssh10:16:550
129998100,6rtkit-daemon1864146-21kthreadcore09:25:152
129998100,6rtkit-daemon1000-21snmpd12:06:342
129998100,5rtkit-daemon1921108-21cut10:00:180
129998100,3rtkit-daemon222-21plymouthd11:14:502
129998100,3rtkit-daemon1689062-21munin-node11:51:060
129998100,3rtkit-daemon1000-21snmpd08:28:342
129998100,2rtkit-daemon222-21plymouthd11:22:122
129998100,1rtkit-daemon0-21swapper/009:17:550
129998100,1rtkit-daemon0-21swapper/009:17:540
2164381290,2sleep22164383-21ssh12:38:192
2155908291,1sleep12133846-21kworker/u16:5-nfsiod12:31:151
2149715291,4sleep22149752-21apt-get12:30:122
2110789291,4sleep12110811-21apt-get12:05:131
2109712290,2sleep0222-21plymouthd12:02:440
2109621290,6sleep12109627-21ssh12:02:281
2092791291,6sleep22092842-21ntpq11:50:232
2034194290,5sleep134-21ksoftirqd/111:15:191
1986232290,2sleep2222-21plymouthd10:44:322
1976775290,6sleep01977044-21unixbench_singl10:35:270
1940208291,1sleep10-21swapper/110:15:131
1932433292,4sleep21932431-21apt-get10:10:122
1923906290,2sleep21923912-21ssh10:03:462
1907485290,2sleep0222-21plymouthd09:50:490
1900561290,1sleep10-21swapper/109:48:221
1892734290,6sleep11892740-21ssh09:43:011
1884917290,1sleep00-21swapper/009:37:580
1855129290,6sleep21854890-21/usr/sbin/munin09:20:172
1812379291,4sleep21812405-21ntpq08:45:242
1800137291,5sleep10-21swapper/108:36:411
1774350290,2sleep0222-21plymouthd08:16:360
1723765290,6sleep11724161-21irqcore07:40:181
1716283290,1sleep10-21swapper/107:30:401
1709913290,2sleep0222-21plymouthd07:26:130
1693807291,5sleep11695679-21cut07:15:191
1680241291,4sleep01681233-21memory07:05:200
12999890,5rtkit-daemon703-21mta-sts-daemon09:21:331
12999890,5rtkit-daemon222-21plymouthd11:17:532
12999890,5rtkit-daemon222-21plymouthd07:09:352
12999890,5rtkit-daemon1947912-21ssh10:20:030
12999890,5rtkit-daemon1776720-21cut08:20:162
12999890,5rtkit-daemon1689062-21munin-node07:51:412
12999890,4rtkit-daemon1753549-21grep08:00:192
12999890,4rtkit-daemon1730049-21diskstats07:45:162
12999890,4rtkit-daemon1730049-21diskstats07:45:152
12999890,3rtkit-daemon1815593-21cut08:50:182
12999890,3rtkit-daemon1-21systemd11:01:482
12999890,3rtkit-daemon1-21systemd11:01:482
12999890,2rtkit-daemon1909150-21ssh09:55:070
2149763281,4sleep02149922-21df_inode12:30:140
2149217280,2sleep10-21swapper/112:29:321
2100630281,4sleep12100673-21ntp_states11:55:231
2079743280,5sleep02079784-21ssh11:45:110
2055042280,6sleep12055048-21ssh11:26:331
2016115281,1sleep10-21swapper/111:01:021
2016115281,1sleep10-21swapper/111:01:021
1994505280,6sleep00-21swapper/010:50:110
1987194280,5sleep21988017-21cut10:45:172
1986174280,5sleep01986180-21ssh10:44:210
1969842280,2sleep11969848-21ssh10:32:001
1955632280,2sleep11955636-21ssh10:25:031
1954291282,4sleep21954033-21kworker/u16:2+nfsiod10:21:462
1925067280,5sleep21925624-21sed10:05:142
1880820280,2sleep20-21swapper/209:35:202
1846709281,4sleep11846713-21ssh09:14:501
1832463280,1sleep10-21swapper/109:03:591
1826548281,4sleep21826634-21tune2fs09:00:172
1801238280,2sleep2222-21plymouthd08:40:162
1799481281,4sleep01799511-21ntpq08:35:240
1783944280,2sleep10-21swapper/108:25:191
1774591280,1sleep10-21swapper/108:19:421
1754940282,3sleep1222-21plymouthd08:00:451
1749137281,3sleep01749169-21apt-get08:00:120
1748846280,5sleep01748915-21systemd-run08:00:000
1748732280,6sleep11-21systemd07:58:331
1729549280,2sleep01729633-21appstreamcli07:45:010
1729549280,2sleep01729633-21appstreamcli07:45:010
1723564280,5sleep014-21ksoftirqd/007:40:160
1716928280,4sleep2222-21plymouthd07:35:132
1715692281,4sleep21715731-21ntpq07:30:252
1682331280,3sleep30-21swapper/307:10:013
12999880,4rtkit-daemon703-21mta-sts-daemon07:20:202
12999880,4rtkit-daemon222-21plymouthd09:41:482
12999880,4rtkit-daemon222-21plymouthd08:06:172
12999880,4rtkit-daemon2147921-21ssh12:25:312
12999880,4rtkit-daemon2077322-21ntpq11:40:211
12999880,4rtkit-daemon2017808-21apt-get11:05:132
12999880,4rtkit-daemon1979046-21cpu10:40:121
12999880,4rtkit-daemon1689062-21munin-node12:03:362
12999880,4rtkit-daemon1689062-21munin-node07:26:132
12999880,4rtkit-daemon1-21systemd12:24:572
12999880,3rtkit-daemon222-21plymouthd07:40:142
12999880,1rtkit-daemon0-21swapper/212:11:582
2163692270,2sleep0222-21plymouthd12:36:150
2157491271,3sleep1222-21plymouthd12:35:131
2147124271,3sleep02147270-21ntpq12:25:220
2088895271,4sleep12090464-21kthreadcore11:50:181
2072038271,3sleep22072033-21apt-get11:40:122
2054105270,4sleep00-21swapper/011:25:240
2043934270,4sleep02045837-21grep11:20:180
2009056273,2sleep00-21swapper/010:58:050
1995879270,5sleep21996844-21kthreadcore10:50:172
1965882270,4sleep01967647-21cut10:30:180
1963449271,3sleep21963446-21apt-get10:30:122
1949413271,3sleep11951013-21kthreadcore10:20:171
1940248273,2sleep2431ktimers/210:15:132
1930009271,3sleep11930057-21ntpq10:05:211
1916969271,2sleep10-21swapper/110:00:121
1915870270,1sleep20-21swapper/209:57:532
1906847271,3sleep11906865-21ntp_states09:50:261
1875542271,3sleep01875635-21ntpq09:30:200
1869559270,1sleep10-21swapper/109:28:331
1869312270,3sleep0222-21plymouthd09:27:440
1838613270,4sleep0222-21plymouthd09:05:360
1826397271,2sleep00-21swapper/009:00:140
1813548271,3sleep10-21swapper/108:50:131
1806501270,1sleep10-21swapper/108:40:471
1793651270,1sleep10-21swapper/108:31:411
1786543271,3sleep01786584-21ntp_kernel_pll_08:25:220
1755541271,3sleep072-21kcompactd008:05:130
1735743270,3sleep1222-21plymouthd07:46:151
1735743270,3sleep1222-21plymouthd07:46:141
1723042270,1sleep00-21swapper/007:39:360
1722816270,1sleep10-21swapper/107:36:401
1704063271,3sleep11704098-21apt-get07:25:131
1692657271,4sleep01693806-21cut07:15:180
12999870,3rtkit-daemon222-21plymouthd10:55:262
12999870,3rtkit-daemon222-21plymouthd09:20:030
12999870,3rtkit-daemon222-21plymouthd07:57:222
12999870,3rtkit-daemon222-21plymouthd07:15:232
12999870,3rtkit-daemon2195379-21ntpd10:26:560
12999870,3rtkit-daemon1986449-21appstreamcli10:45:021
12999870,3rtkit-daemon1787799-21apt-get08:30:142
2126692260,3sleep12126802-21irqcore12:15:161
2126692260,3sleep12126802-21irqcore12:15:151
2125287260,2sleep1222-21plymouthd12:13:041
2102334260,1sleep00-21swapper/011:58:550
2085131261,2sleep10-21swapper/111:45:241
2071397260,4sleep2222-21plymouthd11:39:172
2062192260,3sleep02062379-21users11:30:240
2061265261,3sleep12061711-21grep11:30:171
2031802260,1sleep00-21swapper/011:11:440
2024500260,1sleep10-21swapper/111:08:051
2017715260,3sleep0222-21plymouthd11:05:030
1994547260,3sleep1222-21plymouthd10:50:121
1971236260,3sleep20-21swapper/210:35:142
1879591262,2sleep10-21swapper/109:35:191
1870290261,2sleep10-21swapper/109:30:021
1838721260,3sleep1222-21plymouthd09:06:561
1825881260,1sleep00-21swapper/008:58:010
1813042260,1sleep00-21swapper/008:47:230
1805939260,2sleep00-21swapper/008:40:210
1789169261,2sleep01790455-21kthreadcore08:30:200
1776943260,3sleep01778719-21cut08:20:180
1741653260,3sleep0222-21plymouthd07:50:260
1710878261,3sleep01711209-21cut07:30:190
1684768260,4sleep11686587-21kthreadcore07:10:181
2011458250,2sleep02012890-21ssh11:00:180
2011458250,2sleep02012890-21ssh11:00:170
1891308250,3sleep01891361-21ntp_states09:40:230
1853600250,2sleep1222-21plymouthd09:17:151
1853600250,2sleep1222-21plymouthd09:17:141
1846346250,3sleep0222-21plymouthd09:13:450
1819318250,3sleep0222-21plymouthd08:50:550
1755577250,2sleep10-21swapper/108:05:141
1742172250,2sleep1222-21plymouthd07:51:191
1697691250,2sleep10-21swapper/107:20:131
1895209240,2sleep00-21swapper/009:45:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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