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2026-03-10 - 10:50
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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 100 highest latencies:
System rackeslot8.osadl.org (updated Tue Mar 10, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1649380992321,1cyclictest0-21swapper/319:10:263
1649380992320,1cyclictest0-21swapper/320:00:223
1649380992319,1cyclictest0-21swapper/323:10:013
1649380992219,1cyclictest0-21swapper/321:30:013
1649380992017,1cyclictest0-21swapper/321:15:183
164938099192,13cyclictest1882700-21taskset22:10:123
1649380991815,1cyclictest0-21swapper/323:15:163
1649380991815,1cyclictest0-21swapper/322:55:173
1649380991815,1cyclictest0-21swapper/322:55:173
1649380991814,2cyclictest1686497-21taskset19:35:163
164938099181,13cyclictest1868899-21taskset21:55:223
164938099181,12cyclictest1773695-21chrt20:45:143
164938099181,12cyclictest1773695-21chrt20:45:133
1649380991714,1cyclictest0-21swapper/323:55:173
1649380991714,1cyclictest0-21swapper/322:45:203
1649380991714,1cyclictest0-21swapper/322:00:233
1649380991714,1cyclictest0-21swapper/321:20:143
1649380991714,1cyclictest0-21swapper/319:50:193
1649380991714,1cyclictest0-21swapper/319:40:163
1649380991713,1cyclictest0-21swapper/320:55:003
164938099171,13cyclictest2061957-21chrt00:25:533
164938099171,12cyclictest2044002-21taskset00:15:153
164938099171,12cyclictest2043072-21turbostat00:14:593
164938099171,12cyclictest2036426-21sleep00:09:593
164938099171,12cyclictest1895211-21turbostat22:20:003
164938099171,12cyclictest1741614-21taskset20:20:123
164938099171,12cyclictest1700211-21taskset19:45:183
164938099171,11cyclictest2049731-21taskset00:20:003
164938099170,13cyclictest1920855-21turbostat22:40:013
164938099170,13cyclictest1765192-21taskset20:35:193
1649380991613,1cyclictest0-21swapper/319:15:183
164938099161,12cyclictest2075049-21chrt00:36:243
164938099161,12cyclictest2004633-21taskset23:45:103
164938099161,12cyclictest1997978-21sleep23:40:003
164938099161,12cyclictest1991551-21turbostat23:35:003
164938099161,12cyclictest1979477-21taskset23:25:143
164938099161,12cyclictest1975899-21taskset23:20:173
164938099161,12cyclictest1902639-21taskset22:25:163
164938099161,12cyclictest1901389-21taskset22:22:273
164938099161,12cyclictest1882187-21chrt22:07:123
164938099161,12cyclictest1856788-21turbostat21:50:003
164938099161,12cyclictest1741280-21chrt20:19:453
164938099161,11cyclictest2011069-21chrt23:50:123
164938099161,11cyclictest1966018-21taskset23:15:003
164938099161,11cyclictest1747996-21taskset20:25:053
164938099161,11cyclictest1715368-21chrt19:55:513
164938099161,11cyclictest1671105-21taskset19:25:063
164938099160,12cyclictest1843758-21chrt21:36:583
164938099160,12cyclictest1805062-21taskset21:06:253
16778792151,10sleep21678019-21cut19:30:152
1649380991512,1cyclictest0-21swapper/322:40:133
1649380991512,1cyclictest0-21swapper/322:30:173
1649380991512,1cyclictest0-21swapper/319:20:143
164938099151,12cyclictest1952965-21taskset23:03:063
164938099151,11cyclictest2004280-21taskset23:43:463
164938099151,11cyclictest1939757-21taskset22:51:163
164938099151,11cyclictest1862823-21taskset21:50:253
164938099151,11cyclictest1791480-21taskset20:55:193
164938099151,11cyclictest1767252-21taskset20:40:083
164938099151,11cyclictest1734584-21taskset20:11:023
164938099150,8cyclictest1850393-21taskset21:44:573
164938099150,12cyclictest2068737-21chrt00:32:233
164938099150,12cyclictest1806999-21taskset21:10:173
164938099150,12cyclictest1798761-21taskset21:02:283
164938099150,12cyclictest1728228-21chrt20:06:183
18136172140,7sleep21814714-21grep21:15:182
17148982140,1sleep10-21swapper/119:55:221
17109742140,7sleep01712660-21ps19:55:170
164938099145,7cyclictest2029638-21taskset00:00:263
164938099141,11cyclictest1760335-21taskset20:31:383
164938099140,12cyclictest1683361-21taskset19:31:123
164938099140,11cyclictest1831727-21taskset21:30:143
307598120,8rtkit-daemon2001794-21cut23:40:181
307598120,8rtkit-daemon1947652-21irqcore23:00:161
307598120,7rtkit-daemon468-21systemd-logind22:56:451
307598120,7rtkit-daemon468-21systemd-logind22:56:441
307598110,5rtkit-daemon217-21plymouthd22:32:191
307598110,2rtkit-daemon217-21plymouthd23:31:031
307598110,2rtkit-daemon217-21plymouthd21:37:171
20497792110,4sleep12049925-21df00:20:111
20224832110,8sleep12022652-21grep23:55:191
19982462110,2sleep21998210-21/usr/sbin/munin23:40:142
307598100,6rtkit-daemon714-21snmpd20:19:381
307598100,6rtkit-daemon3256-21sendmail-mta23:51:281
307598100,6rtkit-daemon3256-21sendmail-mta22:14:431
307598100,6rtkit-daemon3256-21sendmail-mta00:31:431
307598100,6rtkit-daemon3256-21sendmail-mta00:25:091
307598100,6rtkit-daemon316-21systemd-udevd20:36:441
307598100,6rtkit-daemon1732630-21cut20:10:171
307598100,6rtkit-daemon0-21swapper/121:34:091
307598100,3rtkit-daemon217-21plymouthd23:20:341
18648382101,6sleep11866436-21tr21:55:181
16491212104,3sleep0221rcuc/019:10:010
30759890,5rtkit-daemon217-21plymouthd21:14:531
30759890,5rtkit-daemon1814169-21cut21:15:181
30759890,5rtkit-daemon1-21systemd21:24:081
30759890,5rtkit-daemon1-21systemd20:07:591
30759890,4rtkit-daemon1922879-21grep22:40:151
30759890,4rtkit-daemon1904012-21tr22:25:161
30759890,4rtkit-daemon1772562-21ntp_states20:40:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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