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2026-01-11 - 10:40
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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 Sun Jan 11, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19037382400,1sleep30-21swapper/300:15:013
1507338992926,1cyclictest0-21swapper/321:35:003
150733899281,22cyclictest1664559-21turbostat21:10:003
1507338992118,1cyclictest0-21swapper/323:50:003
1507338992118,1cyclictest0-21swapper/322:05:123
1507338992017,1cyclictest0-21swapper/323:00:113
1507338992016,1cyclictest0-21swapper/322:55:003
1507338991916,1cyclictest0-21swapper/319:30:173
150733899191,15cyclictest1683806-21sleep21:25:003
150733899191,13cyclictest1709926-21taskset21:45:023
150733899188,7cyclictest15478242sleep319:35:223
1507338991815,1cyclictest0-21swapper/323:45:003
1507338991814,1cyclictest0-21swapper/320:55:003
1507338991812,4cyclictest1916463-21sleep00:24:593
150733899181,13cyclictest1606679-21turbostat20:25:003
150733899181,13cyclictest1522551-21turbostat19:20:003
150733899181,12cyclictest1819704-21taskset23:10:023
150733899181,12cyclictest1819704-21taskset23:10:013
150733899181,12cyclictest1626204-21taskset20:40:013
150733899177,6cyclictest15678362sleep319:51:213
1507338991714,1cyclictest0-21swapper/323:55:233
1507338991714,1cyclictest0-21swapper/323:25:173
1507338991714,1cyclictest0-21swapper/322:35:203
1507338991714,1cyclictest0-21swapper/321:00:183
1507338991714,1cyclictest0-21swapper/320:36:203
1507338991714,1cyclictest0-21swapper/319:30:003
150733899171,13cyclictest1593441-21taskset20:10:273
150733899171,13cyclictest1507839-21chrt19:10:123
150733899171,12cyclictest1858303-21turbostat23:40:003
150733899171,12cyclictest1686091-21taskset21:25:173
1507338991613,1cyclictest0-21swapper/322:10:183
1507338991613,1cyclictest0-21swapper/320:30:163
1507338991613,1cyclictest0-21swapper/319:42:333
1507338991613,1cyclictest0-21swapper/300:00:333
150733899161,12cyclictest1929209-21chrt00:34:163
150733899161,12cyclictest1818812-21taskset23:05:243
150733899161,12cyclictest1806531-21taskset22:59:553
150733899161,12cyclictest1793584-21chrt22:48:373
150733899161,12cyclictest1763348-21taskset22:25:173
150733899161,12cyclictest1761362-21taskset22:22:403
150733899161,12cyclictest1730448-21taskset22:00:163
150733899161,12cyclictest1651657-21taskset20:59:253
150733899161,12cyclictest1651657-21taskset20:59:243
150733899161,12cyclictest1610692-21taskset20:25:183
150733899161,12cyclictest1576229-21taskset20:00:173
150733899160,12cyclictest1907330-21taskset00:15:173
150733899160,12cyclictest1524012-21chrt19:20:143
150733899159,4cyclictest1722674-21turbostat21:59:553
1507338991513,1cyclictest0-21swapper/322:44:153
1507338991512,1cyclictest0-21swapper/320:05:263
1507338991512,1cyclictest0-21swapper/300:25:183
150733899151,12cyclictest1851755-21taskset23:33:493
150733899151,11cyclictest1832333-21turbostat23:20:003
150733899151,11cyclictest1774223-21taskset22:32:303
150733899151,11cyclictest1716086-21taskset21:48:133
150733899151,11cyclictest1696873-21chrt21:35:073
150733899151,11cyclictest1677366-21turbostat21:20:003
150733899151,11cyclictest1637932-21taskset20:45:223
150733899151,11cyclictest1599968-21taskset20:16:283
150733899151,11cyclictest1568374-21chrt19:55:043
150733899150,12cyclictest1891362-21taskset00:05:153
150733899150,12cyclictest1877458-21taskset23:50:253
150733899150,12cyclictest1754904-21chrt22:17:273
150733899150,12cyclictest1670357-21chrt21:10:223
150733899150,11cyclictest1929513-21taskset00:35:013
17837822141,3sleep20-21swapper/222:40:192
150733899141,9cyclictest15555102sleep319:45:123
1507338991412,1cyclictest0-21swapper/323:20:183
1507338991411,1cyclictest0-21swapper/321:50:123
18048952135,5sleep21805535-21cat22:55:182
17811252130,10sleep00-21swapper/022:40:140
17687472131,2sleep00-21swapper/022:30:150
15545742131,9sleep01554802-21grep19:40:240
307598110,7rtkit-daemon316-21systemd-udevd22:45:440
307598110,5rtkit-daemon1683401-21users21:20:240
307598110,3rtkit-daemon217-21plymouthd21:12:200
16674942110,8sleep11669552-21tr21:10:171
15492432110,8sleep21549281-21cut19:40:142
150733899119,1cyclictest0-21swapper/319:10:013
307598100,6rtkit-daemon3256-21sendmail-mta21:38:330
307598100,6rtkit-daemon1-21systemd19:17:192
307598100,5rtkit-daemon217-21plymouthd19:23:022
307598100,2rtkit-daemon217-21plymouthd19:29:122
307598100,1rtkit-daemon0-21swapper/220:00:262
17105092100,7sleep11711435-21/usr/sbin/munin21:45:161
15807612100,8sleep01580762-21sshd20:02:200
30759890,6rtkit-daemon217-21plymouthd19:10:272
30759890,6rtkit-daemon1514068-21munin-node00:16:172
30759890,5rtkit-daemon714-21snmpd19:09:452
30759890,5rtkit-daemon1818695-21ps23:05:230
30759890,5rtkit-daemon1761419-21kworker/0:0+kacpid23:25:370
30759890,5rtkit-daemon1514068-21munin-node19:46:212
30759890,5rtkit-daemon0-21swapper/021:32:200
30759890,4rtkit-daemon475-21wpa_supplicant21:15:320
30759890,4rtkit-daemon444-21avahi-daemon21:55:030
30759890,4rtkit-daemon1710335-21perl21:45:140
30759890,2rtkit-daemon217-21plymouthd19:37:462
1890489290,1sleep20-21swapper/200:02:142
1769683290,6sleep11771575-21grep22:30:161
1676722290,6sleep11676960-21sed21:15:221
1653494290,6sleep01655454-21kthreadcore21:00:190
1640463290,6sleep01641736-21tr20:50:170
1529247290,6sleep01529486-21latency_hist19:25:010
30759880,4rtkit-daemon716-21ntpd22:02:390
30759880,4rtkit-daemon714-21snmpd22:35:030
30759880,4rtkit-daemon714-21snmpd00:30:312
30759880,4rtkit-daemon493-21gmain22:58:530
30759880,4rtkit-daemon475-21wpa_supplicant23:15:070
30759880,4rtkit-daemon3256-21sendmail-mta00:25:092
30759880,4rtkit-daemon217-21plymouthd23:31:120
30759880,4rtkit-daemon217-21plymouthd21:51:080
30759880,4rtkit-daemon217-21plymouthd20:09:242
30759880,4rtkit-daemon1605832-21/usr/sbin/munin20:20:212
30759880,4rtkit-daemon1514068-21munin-node23:55:332
30759880,4rtkit-daemon1514068-21munin-node23:36:320
30759880,4rtkit-daemon1514068-21munin-node22:27:570
30759880,4rtkit-daemon1514068-21munin-node20:57:000
30759880,4rtkit-daemon1514068-21munin-node20:57:000
30759880,4rtkit-daemon1514068-21munin-node20:49:080
30759880,4rtkit-daemon1514068-21munin-node20:34:580
30759880,4rtkit-daemon1514068-21munin-node19:55:562
30759880,4rtkit-daemon1514068-21munin-node00:37:562
30759880,4rtkit-daemon1-21systemd22:11:070
30759880,4rtkit-daemon1-21systemd21:08:050
30759880,4rtkit-daemon1-21systemd20:35:530
30759880,4rtkit-daemon1-21systemd00:21:342
30759880,3rtkit-daemon217-21plymouthd21:41:160
30759880,3rtkit-daemon1736248-21df_inode22:05:120
30759880,3rtkit-daemon1609866-21tr20:25:180
30759880,2rtkit-daemon14-21ksoftirqd/023:10:300
30759880,2rtkit-daemon14-21ksoftirqd/023:10:300
30759880,1rtkit-daemon0-21swapper/023:02:380
30759880,1rtkit-daemon0-21swapper/022:50:010
1935653280,1sleep10-21swapper/100:39:121
1911666281,4sleep11913220-21tr00:20:171
1910290281,3sleep01910298-21apt-get00:20:120
1877768280,1sleep20-21swapper/223:54:252
1858859280,6sleep11859008-21df_inode23:40:131
1817267281,4sleep21818427-21memory23:05:202
1802841281,4sleep11804894-21grep22:55:171
1761840280,6sleep21761958-21expr22:25:122
1755386280,2sleep00-21swapper/022:20:090
1742497281,4sleep11742646-21df_inode22:10:131
1729815281,4sleep11730011-21hddtemp_smartct22:00:151
1641737283,3sleep11642187-21kthreadcore20:50:181
1594053281,3sleep21594086-21apt-get20:15:122
1593590280,1sleep20-21swapper/220:12:242
1587977280,6sleep01588103-21interrupts20:10:170
30759870,4rtkit-daemon444-21avahi-daemon22:15:380
30759870,3rtkit-daemon714-21snmpd20:21:360
30759870,3rtkit-daemon714-21snmpd19:54:322
30759870,3rtkit-daemon3256-21sendmail-mta00:07:182
30759870,3rtkit-daemon217-21plymouthd20:41:580
30759870,3rtkit-daemon1897696-21fschecks_time00:10:132
30759870,3rtkit-daemon1514068-21munin-node19:31:312
30759870,3rtkit-daemon1-21systemd23:46:192
30759870,3rtkit-daemon1-21systemd23:20:410
30759870,3rtkit-daemon1-21systemd21:25:160
1929266270,4sleep11929267-21cron00:34:591
1909988270,5sleep11910072-21latency_hist00:20:021
1903027271,4sleep11903214-21users00:10:231
1892400273,2sleep1321rcuc/100:05:181
1857937271,4sleep10-21swapper/123:35:321
1807321270,4sleep21808046-21sed23:00:162
1774685270,3sleep11774718-21apt-get22:35:171
1742647271,3sleep20-21swapper/222:10:142
1711436270,4sleep21713155-21/usr/sbin/munin21:45:172
1693185273,2sleep2217-21plymouthd21:30:192
1685042270,5sleep21686089-21kthreadcore21:25:172
1643812271,3sleep21639064-21/usr/sbin/munin20:50:202
1619513271,3sleep20-21swapper/220:35:002
30759860,2rtkit-daemon217-21plymouthd23:45:050
1935476260,1sleep00-21swapper/000:36:550
1921941260,3sleep01922012-21ntp_states00:25:210
1909719260,1sleep00-21swapper/000:16:350
1902431260,4sleep01902652-21strings00:10:180
1896939260,1sleep00-21swapper/000:07:140
1890549260,1sleep00-21swapper/000:03:010
1890380260,1sleep10-21swapper/100:00:491
1878071260,3sleep00-21swapper/023:55:110
1877725260,1sleep10-21swapper/123:53:521
1877603260,1sleep00-21swapper/023:52:190
1859265261,3sleep01860079-21sed23:40:160
1851508260,1sleep20-21swapper/223:30:412
1840207260,3sleep21840982-21tr23:25:162
1831994260,1sleep20-21swapper/223:15:582
1831414260,3sleep11831470-21ntp_states23:15:211
1825552260,1sleep20-21swapper/223:10:452
1825552260,1sleep20-21swapper/223:10:452
1819273260,1sleep10-21swapper/123:07:351
1812768260,1sleep10-21swapper/123:01:181
1799999260,1sleep10-21swapper/122:53:341
1799948260,1sleep20-21swapper/222:52:552
1793690262,2sleep11793732-21systemd-run22:50:001
1793347260,1sleep20-21swapper/222:45:362
1762203260,3sleep11762567-21sed22:25:151
1756775260,3sleep11758178-21tr22:20:141
1754759260,1sleep20-21swapper/222:15:402
1750310261,2sleep10-21swapper/122:15:181
1742194260,1sleep10-21swapper/122:09:541
1736096260,3sleep21736252-21diskstats22:05:132
1729611260,2sleep21729644-21apt-get22:00:122
1729286260,1sleep20-21swapper/221:59:242
1722377260,1sleep10-21swapper/121:51:331
1719040260,3sleep21721099-21cut21:50:182
1684443260,4sleep11685039-21irqrtprio21:25:161
1672220260,4sleep21673219-21kthreadcore21:15:152
1658433260,3sleep21658574-21diskstats21:05:142
1658014260,1sleep10-21swapper/121:03:361
1646537260,4sleep20-21swapper/220:55:162
1646537260,4sleep20-21swapper/220:55:162
1632679260,3sleep11632834-21diskstats20:45:131
1626217261,2sleep10-21swapper/120:40:131
1625810262,2sleep2217-21plymouthd20:38:212
1620167260,3sleep11620299-21cut20:35:151
1600523261,2sleep10-21swapper/120:20:121
1599943260,1sleep00-21swapper/020:16:100
1599939260,1sleep10-21swapper/120:16:071
1592875261,3sleep11592949-21ntpq20:10:221
1587276260,1sleep10-21swapper/120:08:461
1587080260,1sleep00-21swapper/020:06:170
1580868260,1sleep10-21swapper/120:03:411
1570047261,2sleep00-21swapper/019:55:190
1567789260,1sleep10-21swapper/119:50:431
1522377260,1sleep10-21swapper/119:18:051
1516345260,3sleep01516494-21df_inode19:15:110
1513101260,3sleep01513198-21cat19:10:220
1928996250,1sleep00-21swapper/000:31:380
1918124250,2sleep1321rcuc/100:25:181
1871355250,1sleep10-21swapper/123:49:311
1859009251,2sleep20-21swapper/223:40:152
1838604250,3sleep10-21swapper/123:23:021
1825669250,1sleep10-21swapper/123:12:161
1825669250,1sleep10-21swapper/123:12:161
1774392250,3sleep20-21swapper/222:34:382
1758179251,2sleep20-21swapper/222:20:152
1709472250,3sleep20-21swapper/221:44:292
1709224250,3sleep10-21swapper/121:41:191
1699584250,2sleep10-21swapper/121:35:181
1691850250,2sleep10-21swapper/121:30:171
1677625250,2sleep20-21swapper/221:20:122
1658415250,3sleep11658432-21grep21:05:121
1652379250,2sleep20-21swapper/221:00:172
1645923250,2sleep11646536-21irqrtprio20:55:151
1645923250,2sleep11646536-21irqrtprio20:55:151
1635411250,2sleep20-21swapper/220:45:182
1632249250,3sleep20-21swapper/220:43:172
1612195250,3sleep11612251-21ntp_states20:25:211
1608716251,2sleep20-21swapper/220:25:182
1567850250,1sleep00-21swapper/019:51:300
1557907250,2sleep10-21swapper/119:45:181
1555506250,3sleep00-21swapper/019:45:100
1542354250,2sleep00-21swapper/019:35:110
1535394250,3sleep10-21swapper/119:26:261
1534821250,3sleep00-21swapper/019:25:210
1529164250,3sleep10-21swapper/119:23:581
1513538250,1sleep10-21swapper/119:10:561
1503119250,2sleep10-21swapper/119:05:181
1501997250,2sleep00-21swapper/019:05:170
1878107240,1sleep10-21swapper/123:55:121
1851738240,2sleep1217-21plymouthd23:33:371
1839264240,1sleep10-21swapper/123:25:021
1782522240,1sleep10-21swapper/122:40:191
1729048240,2sleep10-21swapper/121:56:221
1702897240,3sleep20-21swapper/221:37:482
1683073240,2sleep1217-21plymouthd21:20:241
1618746240,1sleep10-21swapper/120:30:221
1568588240,2sleep11568786-21smartctl19:55:171
1550015240,2sleep11550927-21kthreadcore19:40:171
1543750240,1sleep10-21swapper/119:35:161
1538450240,2sleep00-21swapper/019:30:180
1852102230,1sleep20-21swapper/223:35:092
1832583230,1sleep20-21swapper/223:20:072
1774721230,1sleep20-21swapper/222:35:182
1664791230,1sleep20-21swapper/221:10:062
1535918230,1sleep10-21swapper/119:30:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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