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2026-05-17 - 05:01
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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 Sun May 17, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1841116992522,1cyclictest0-21swapper/321:30:193
1841116992421,1cyclictest0-21swapper/322:45:013
1841116992421,1cyclictest0-21swapper/322:40:013
1841116992320,1cyclictest0-21swapper/321:40:023
1841116992220,1cyclictest0-21swapper/323:00:023
1841116992219,1cyclictest0-21swapper/320:20:003
184111699221,14cyclictest1958850-21sleep20:44:553
22833692210,11sleep244-21ksoftirqd/200:10:162
1841116992119,1cyclictest0-21swapper/300:05:013
1841116992118,1cyclictest0-21swapper/323:20:263
184111699211,15cyclictest2279355-21taskset00:05:213
20593362201,9sleep22059344-21ssh21:46:052
20593362201,9sleep22059344-21ssh21:46:042
184111699202,13cyclictest2200962-21taskset23:15:293
1841116992017,1cyclictest0-21swapper/323:50:163
1841116992017,1cyclictest0-21swapper/319:55:253
1841116992017,1cyclictest0-21swapper/319:20:013
184111699201,15cyclictest2105060-21taskset22:15:203
184111699201,15cyclictest2091236-21taskset22:07:103
1841116991916,1cyclictest0-21swapper/320:10:003
1841116991916,1cyclictest0-21swapper/319:20:023
1841116991916,1cyclictest0-21swapper/300:15:203
184111699191,14cyclictest2237211-21taskset23:40:183
184111699191,14cyclictest2012198-21taskset21:17:113
184111699191,14cyclictest1996474-21taskset21:05:243
184111699191,14cyclictest1952317-21taskset20:34:053
184111699191,14cyclictest1881778-21turbostat19:40:003
184111699191,13cyclictest2327174-21taskset00:35:273
184111699191,13cyclictest2163437-21taskset22:55:003
184111699188,7cyclictest22424812sleep323:45:133
184111699182,12cyclictest2179244-21taskset23:05:023
184111699181,6cyclictest1901057-21turbostat19:55:013
1841116991815,1cyclictest0-21swapper/322:00:033
1841116991815,1cyclictest0-21swapper/319:10:283
184111699181,14cyclictest2312572-21taskset00:28:223
184111699181,14cyclictest1986784-21taskset21:00:183
184111699181,13cyclictest2224710-21chrt23:30:363
184111699181,13cyclictest2130717-21taskset22:32:353
184111699181,13cyclictest2120652-21taskset22:25:213
184111699181,13cyclictest2092542-21taskset22:10:023
184111699181,13cyclictest2004274-21taskset21:12:003
184111699181,13cyclictest1891394-21taskset19:45:173
184111699180,14cyclictest2021147-21taskset21:24:593
184111699180,13cyclictest1971679-21taskset20:49:553
129998180,5rtkit-daemon2263563-21ntpq23:55:241
184111699177,7cyclictest21615432sleep322:50:323
184111699177,7cyclictest19392892sleep320:22:153
184111699172,11cyclictest1971948-21taskset20:50:083
1841116991715,1cyclictest0-21swapper/322:20:023
1841116991714,1cyclictest0-21swapper/321:50:233
1841116991714,1cyclictest0-21swapper/321:25:173
184111699171,13cyclictest2217595-21taskset23:27:323
184111699171,13cyclictest2193581-21taskset23:11:413
184111699171,13cyclictest2059128-21taskset21:45:323
184111699171,13cyclictest2059128-21taskset21:45:323
184111699171,13cyclictest1945597-21taskset20:26:063
184111699171,12cyclictest2313429-21taskset00:30:023
184111699171,12cyclictest2297668-21taskset00:20:043
184111699171,12cyclictest1984412-21taskset20:58:213
184111699171,12cyclictest1882034-21taskset19:40:093
184111699171,12cyclictest1868588-21taskset19:25:333
184111699170,13cyclictest2288675-21taskset00:12:463
184111699170,13cyclictest2258314-21taskset23:55:143
184111699170,13cyclictest1874411-21taskset19:30:353
23115372161,11sleep12311543-21ssh00:25:361
20687542160,3sleep1321rcuc/121:55:001
184111699166,7cyclictest19526602sleep320:35:093
1841116991613,1cyclictest0-21swapper/321:55:193
184111699161,12cyclictest2233362-21taskset23:37:423
184111699161,12cyclictest2153660-21taskset22:45:343
184111699161,12cyclictest1926344-21taskset20:10:553
184111699161,12cyclictest1926344-21taskset20:10:553
184111699161,12cyclictest1907727-21taskset20:00:043
184111699161,11cyclictest2037388-21taskset21:35:103
18406792150,2sleep30-21swapper/319:06:463
21687782141,10sleep02168834-21ntpq22:55:220
23040212130,9sleep12304027-21ssh00:21:231
21765722131,1sleep20-21swapper/223:00:222
20215612131,9sleep12021714-21ssh21:25:141
19232822130,3sleep01841112-21cyclictest20:10:160
19232822130,3sleep01841112-21cyclictest20:10:160
18403842133,6sleep01840569-21users19:05:260
129998130,9rtkit-daemon2131990-21grep22:35:120
129998130,9rtkit-daemon2116051-21sed22:25:011
129998130,9rtkit-daemon1000-21snmpd19:42:401
21452172121,4sleep12145258-21ssh22:40:251
20508642120,9sleep22050963-21sed21:40:272
19998542121,8sleep12001463-21tr21:10:191
19539152125,2sleep2171rcu_preempt20:35:162
19074372121,7sleep1222-21plymouthd19:59:551
129998120,8rtkit-daemon2225340-21sh23:32:180
129998120,8rtkit-daemon2217762-21ssh23:28:000
129998120,8rtkit-daemon2043492-21ssh21:35:510
129998120,8rtkit-daemon1000-21snmpd23:47:450
129998120,7rtkit-daemon2313255-21cut00:30:010
129998120,7rtkit-daemon1997419-21diskmemload22:47:460
129998120,3rtkit-daemon2297431-21sendmail-msp00:20:050
22939912111,7sleep02294942-21memory00:15:200
22127702110,2sleep10-21swapper/123:25:181
22092652110,8sleep02209271-21ssh23:21:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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