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2026-06-09 - 15:54
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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 Jun 09, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1759891992926,1cyclictest0-21swapper/310:45:233
1759891992623,1cyclictest0-21swapper/308:55:153
1759891992522,1cyclictest0-21swapper/311:30:003
1759891992522,1cyclictest0-21swapper/310:40:153
1759891992522,1cyclictest0-21swapper/307:15:003
1759891992321,1cyclictest0-21swapper/311:00:013
1759891992220,1cyclictest0-21swapper/310:20:013
1759891992219,1cyclictest0-21swapper/311:20:003
1759891992219,1cyclictest0-21swapper/309:20:023
1759891992219,1cyclictest0-21swapper/308:35:153
1759891992118,1cyclictest0-21swapper/311:05:273
1759891992118,1cyclictest0-21swapper/310:20:023
18158842200,3sleep1321rcuc/107:50:181
175989199202,14cyclictest2122482-21taskset11:20:293
1759891992018,1cyclictest0-21swapper/308:00:063
1759891992018,0cyclictest0-21swapper/312:35:013
1759891992017,1cyclictest0-21swapper/310:00:273
1759891992017,1cyclictest0-21swapper/309:55:143
1759891992017,1cyclictest0-21swapper/309:40:023
1759891992017,1cyclictest0-21swapper/309:00:063
1759891992011,7cyclictest21012342sleep311:10:113
1759891992011,7cyclictest19598282sleep309:35:203
175989199201,14cyclictest2132580-21taskset11:30:153
175989199201,14cyclictest1954427-21taskset09:34:563
175989199201,14cyclictest1843986-21chrt08:10:173
175989199192,13cyclictest2032229-21chrt10:25:123
1759891991917,1cyclictest0-21swapper/307:20:043
1759891991916,1cyclictest0-21swapper/312:20:173
1759891991916,1cyclictest0-21swapper/311:45:263
1759891991916,1cyclictest0-21swapper/307:40:163
175989199191,15cyclictest2093323-21taskset11:05:013
175989199191,14cyclictest2177845-21taskset11:58:303
175989199191,14cyclictest2046832-21taskset10:33:293
175989199191,14cyclictest1985060-21taskset09:54:133
175989199191,14cyclictest1889707-21taskset08:46:133
22234252181,9sleep22223431-21ssh12:26:152
175989199188,7cyclictest19453942sleep309:26:303
175989199187,8cyclictest18962322sleep308:53:043
175989199182,12cyclictest2077154-21taskset10:51:103
1759891991815,1cyclictest0-21swapper/312:00:033
1759891991815,1cyclictest0-21swapper/308:40:143
1759891991815,1cyclictest0-21swapper/308:40:133
175989199181,14cyclictest2147667-21taskset11:40:013
175989199181,13cyclictest2232808-21taskset12:35:133
175989199181,13cyclictest2207760-21taskset12:15:373
175989199181,13cyclictest2170518-21taskset11:54:333
175989199181,13cyclictest1970229-21taskset09:45:113
175989199181,13cyclictest1832986-21taskset08:05:163
175989199181,13cyclictest1800477-21turbostat07:40:013
175989199181,13cyclictest1787298-21taskset07:26:073
21004442171,8sleep02100450-21ssh11:08:360
175989199173,8cyclictest2047368-21sleep10:39:553
175989199172,12cyclictest1813189-21taskset07:49:283
1759891991714,1cyclictest0-21swapper/312:05:143
1759891991714,1cyclictest0-21swapper/312:05:143
1759891991714,1cyclictest0-21swapper/308:15:183
1759891991714,1cyclictest0-21swapper/307:15:033
175989199171,13cyclictest2217258-21taskset12:25:033
175989199171,13cyclictest2200140-21taskset12:10:483
175989199171,13cyclictest2008024-21taskset10:08:123
175989199171,13cyclictest1915901-21taskset09:10:103
175989199171,13cyclictest1909669-21taskset09:05:123
175989199171,13cyclictest1819357-21taskset07:51:413
175989199171,12cyclictest2145982-21taskset11:35:473
175989199171,12cyclictest1864723-21taskset08:30:133
175989199171,12cyclictest1793685-21taskset07:30:433
17537352171,5sleep10-21swapper/107:05:131
22095752162,4sleep12209610-21apt-get12:20:141
1759891991614,1cyclictest0-21swapper/310:10:183
1759891991613,1cyclictest0-21swapper/307:55:233
175989199161,12cyclictest1929694-21taskset09:15:593
175989199161,12cyclictest1857681-21taskset08:21:073
175989199161,11cyclictest1858290-21chrt08:25:113
20466252150,7sleep22046631-21ssh10:32:582
20299832141,10sleep02030209-21/usr/sbin/munin10:20:290
17652542141,9sleep11765297-21ntpq07:10:211
21310362130,10sleep12131042-21ssh11:27:211
19910022130,6sleep21991036-21awk09:55:252
19621802135,2sleep20-21swapper/209:40:012
22250222121,8sleep12225178-21df_inode12:30:121
21385272121,3sleep2222-21plymouthd11:31:392
21074622121,4sleep22107466-21ssh11:11:232
19699362121,8sleep11970159-21latency_hist09:45:011
17867382120,3sleep21786766-21ntpq07:25:232
21383172110,8sleep02138323-21ssh11:30:560
21232632111,8sleep00-21swapper/011:22:110
21154222111,7sleep22115426-21ssh11:16:512
20801892110,3sleep12081267-21kthreadcore10:55:171
19926482110,8sleep11992653-21sh09:58:451
19392042112,4sleep11939239-21apt-get09:25:131
19211152110,8sleep21921157-21ld09:10:222
17597462110,2sleep30-21swapper/307:09:563
22345582105,3sleep02236181-21kthreadcore12:35:200
22320152100,7sleep22232021-21ssh12:33:462
21686222100,7sleep02168698-21/usr/sbin/munin11:50:250
20658602101,7sleep00-21swapper/010:45:180
20562772100,7sleep12057093-21cat10:40:181
20403032101,5sleep12040758-21sed10:30:161
19783162100,8sleep21978521-21irqcore09:50:152
19386902101,2sleep0222-21plymouthd09:24:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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