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2026-06-04 - 02:29
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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 Wed Jun 03, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4122809993330,1cyclictest0-21swapper/312:40:003
4122809993027,1cyclictest0-21swapper/312:20:003
4122809992725,1cyclictest0-21swapper/310:00:013
4122809992522,1cyclictest0-21swapper/310:40:003
4122809992421,1cyclictest0-21swapper/311:05:003
4122809992421,1cyclictest0-21swapper/309:40:053
4122809992421,1cyclictest0-21swapper/308:20:013
4122809992320,1cyclictest0-21swapper/312:00:203
4122809992320,1cyclictest0-21swapper/309:30:213
23172230,1sleep10-21swapper/108:05:151
412280999222,15cyclictest4143782-21taskset07:20:423
4122809992219,1cyclictest0-21swapper/308:55:153
4122809992219,1cyclictest0-21swapper/307:15:013
4122809992119,1cyclictest0-21swapper/310:40:073
4122809992118,1cyclictest0-21swapper/310:00:083
4122809992116,2cyclictest0-21swapper/309:15:193
4122809992017,1cyclictest0-21swapper/310:20:083
4122809992017,1cyclictest0-21swapper/309:25:013
412280999201,15cyclictest248406-21taskset10:55:003
412280999201,15cyclictest248406-21taskset10:54:593
412280999201,14cyclictest184154-21chrt10:10:213
4122809992010,7cyclictest41890512sleep307:58:013
4122809991916,1cyclictest0-21swapper/312:30:143
4122809991916,1cyclictest0-21swapper/312:30:133
4122809991916,1cyclictest0-21swapper/312:20:023
4122809991916,1cyclictest0-21swapper/308:45:153
4122809991916,1cyclictest0-21swapper/308:40:023
412280999191,14cyclictest82938-21taskset09:05:183
412280999191,14cyclictest2082-21taskset08:05:133
412280999191,14cyclictest176535-21chrt10:05:253
412280999191,14cyclictest140117-21chrt09:45:123
412280999191,13cyclictest4150562-21sleep07:34:563
412280999191,13cyclictest4150562-21sleep07:34:553
412280999191,12cyclictest85632-21chrt09:10:123
4122809991816,1cyclictest0-21swapper/309:00:203
4122809991815,1cyclictest0-21swapper/311:20:133
4122809991815,1cyclictest0-21swapper/310:55:143
412280999181,14cyclictest4149675-21taskset07:25:253
412280999181,14cyclictest347322-21taskset11:55:213
412280999181,14cyclictest326928-21taskset11:45:153
412280999181,14cyclictest325160-21taskset11:42:113
412280999181,14cyclictest269535-21taskset11:05:233
412280999181,14cyclictest128067-21taskset09:35:183
412280999181,13cyclictest4176057-21taskset07:46:013
412280999181,13cyclictest370371-21taskset12:10:223
412280999181,13cyclictest33592-21taskset08:25:333
412280999181,13cyclictest314581-21taskset11:35:173
412280999181,13cyclictest302489-21taskset11:29:083
412280999181,13cyclictest277318-21chrt11:10:233
412280999181,13cyclictest27419-21taskset08:23:223
412280999181,13cyclictest202243-21taskset10:25:143
412280999181,13cyclictest186590-21taskset10:15:033
1764962181,9sleep2176529-21ntpq10:05:252
412280999179,6cyclictest41229952sleep307:10:133
4122809991715,1cyclictest0-21swapper/308:00:013
4122809991714,1cyclictest0-21swapper/310:30:173
4122809991714,1cyclictest0-21swapper/308:35:173
412280999171,13cyclictest4169501-21taskset07:40:273
412280999171,13cyclictest4163112-21taskset07:35:353
412280999171,13cyclictest363634-21taskset12:06:043
412280999171,13cyclictest285971-21taskset11:16:173
412280999171,13cyclictest236831-21taskset10:45:173
412280999171,13cyclictest115920-21taskset09:28:563
412280999171,12cyclictest40019-21taskset08:31:073
412280999170,13cyclictest60031-21taskset08:50:163
412280999170,13cyclictest395438-21taskset12:28:223
412280999170,13cyclictest13744-21taskset08:10:223
2094502170,7sleep2209454-21ssh10:29:342
41625662161,13sleep04162592-21ntpq07:35:250
412280999161,12cyclictest340230-21taskset11:50:453
412280999161,12cyclictest309373-21taskset11:31:333
412280999161,12cyclictest153954-21taskset09:51:053
412280999161,11cyclictest4176673-21taskset07:50:133
356102150,11sleep237039-21cut08:30:192
3949512140,7sleep1394957-21ssh12:26:571
2539692141,3sleep0254022-21ntpq10:55:220
1483432140,4sleep0149280-21irqstats09:50:150
912182130,10sleep191459-21awk09:10:261
41223292130,10sleep30-21swapper/307:05:333
4018832131,2sleep20-21swapper/212:30:272
4018832131,2sleep20-21swapper/212:30:262
3499292131,8sleep1350014-21fschecks_time12:00:151
339362131,9sleep033964-21munin-plugin-st08:30:000
2391212131,8sleep2239125-21ssh10:45:412
2180632130,4sleep2218149-21ssh10:35:152
1845102130,9sleep0184760-21ssh10:10:280
171482131,9sleep218932-21cut08:15:192
729212120,9sleep073117-21hddtemp_smartct09:00:150
666862120,9sleep266798-21grep08:55:162
41819362120,8sleep24182013-21ps07:50:252
4115362120,3sleep2411666-21cat12:40:002
3959732120,9sleep01-21systemd12:30:010
3627522121,3sleep2362798-21ld12:05:202
2898302120,2sleep20-21swapper/211:20:182
2483552120,8sleep1248365-21ssh10:54:551
2483552120,8sleep1248365-21ssh10:54:541
215932120,9sleep221793-21/usr/sbin/munin08:20:172
1334762121,8sleep1133983-21ssh09:40:171
801362110,7sleep181151-21cut09:05:181
41830482111,6sleep04183081-21apt-get07:55:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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