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2026-04-02 - 17:53
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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 Thu Apr 02, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8981882350,1sleep00-21swapper/011:10:190
585478993330,1cyclictest0-21swapper/312:20:013
585478993330,1cyclictest0-21swapper/310:00:003
585478992623,1cyclictest0-21swapper/310:30:013
585478992522,1cyclictest0-21swapper/309:25:003
585478992422,1cyclictest0-21swapper/312:30:013
585478992320,1cyclictest0-21swapper/307:44:593
585478992320,1cyclictest0-21swapper/307:35:003
585478992220,1cyclictest0-21swapper/308:10:173
585478992220,1cyclictest0-21swapper/308:10:173
585478992219,1cyclictest0-21swapper/311:20:003
58547899221,15cyclictest877409-21taskset11:00:013
58547899212,14cyclictest900200-21taskset11:14:363
585478992118,1cyclictest0-21swapper/312:40:013
585478992118,1cyclictest0-21swapper/310:00:123
585478992118,1cyclictest0-21swapper/308:25:013
58547899211,15cyclictest984774-21taskset12:08:123
585478992017,1cyclictest0-21swapper/309:10:213
585478992017,1cyclictest0-21swapper/309:00:013
585478992016,1cyclictest0-21swapper/309:35:123
58547899201,15cyclictest594546-21taskset07:17:513
58547899201,15cyclictest1007240-21taskset12:21:153
58547899201,14cyclictest761234-21turbostat09:45:003
58547899201,14cyclictest662459-21chrt08:35:123
585478991917,1cyclictest0-21swapper/309:35:003
585478991916,1cyclictest0-21swapper/311:30:253
585478991916,1cyclictest0-21swapper/307:35:103
58547899191,14cyclictest960977-21taskset11:51:403
58547899191,14cyclictest876215-21taskset10:57:193
58547899191,14cyclictest810867-21taskset10:15:193
58547899191,14cyclictest595252-21taskset07:22:283
58547899191,13cyclictest931397-21taskset11:35:013
10244602191,10sleep21024584-21grep12:35:142
8866382181,12sleep2888023-21cut11:05:182
58547899188,7cyclictest8302042sleep310:28:393
585478991815,1cyclictest0-21swapper/311:45:163
585478991815,1cyclictest0-21swapper/308:45:063
58547899181,13cyclictest975580-21taskset12:00:233
58547899181,13cyclictest968684-21taskset11:56:303
58547899181,13cyclictest945203-21taskset11:40:373
58547899181,13cyclictest916264-21taskset11:25:153
58547899181,13cyclictest891401-21taskset11:06:183
58547899181,13cyclictest867998-21taskset10:51:033
58547899181,13cyclictest821956-21taskset10:22:003
58547899181,13cyclictest776023-21taskset09:53:093
58547899181,13cyclictest776023-21taskset09:53:083
58547899181,13cyclictest736482-21taskset09:25:273
58547899181,13cyclictest652121-21taskset08:25:183
58547899181,13cyclictest616483-21chrt07:52:293
58547899181,13cyclictest585656-21taskset07:10:133
129998180,1rtkit-daemon0-21swapper/210:20:542
58547899178,6cyclictest7682672sleep309:48:003
585478991715,1cyclictest0-21swapper/312:10:163
58547899171,13cyclictest860872-21taskset10:47:493
58547899171,13cyclictest852018-21chrt10:40:243
58547899171,13cyclictest845998-21taskset10:39:323
58547899171,13cyclictest806771-21taskset10:12:463
58547899171,13cyclictest798714-21taskset10:06:453
58547899171,13cyclictest716855-21chrt09:15:173
58547899171,13cyclictest615724-21taskset07:46:253
58547899171,13cyclictest601112-21taskset07:25:203
58547899171,13cyclictest1014999-21taskset12:26:253
58547899171,12cyclictest914330-21taskset11:20:413
58547899171,12cyclictest687542-21taskset08:50:503
58547899171,12cyclictest661867-21taskset08:31:273
58547899171,12cyclictest636806-21taskset08:15:033
58547899171,12cyclictest629685-21taskset08:05:213
58547899171,12cyclictest623088-21taskset07:59:563
58547899170,14cyclictest704545-21taskset09:05:183
58547899170,13cyclictest623793-21turbostat08:05:003
7822022162,4sleep2782243-21ntpq09:55:222
58547899161,11cyclictest699799-21chrt09:00:213
58547899161,11cyclictest674698-21taskset08:40:403
129998140,9rtkit-daemon983586-21awk12:05:282
129998140,10rtkit-daemon975474-21ntpq12:00:202
8830912131,9sleep1883342-21unixbench_singl11:00:281
8595932130,9sleep0859641-21ps10:45:230
5792512131,6sleep2579284-21apt-get07:05:082
129998130,9rtkit-daemon629845-21taskset08:06:011
129998130,8rtkit-daemon797772-21ntpq10:05:232
129998130,8rtkit-daemon635909-21sort08:10:261
129998130,8rtkit-daemon635909-21sort08:10:251
9144912120,9sleep1914495-21ssh11:21:121
8789102120,2sleep0880199-21kthreadcore11:00:180
8426192120,1sleep20-21swapper/210:35:172
5959152120,8sleep1596115-21hddtemp_smartct07:25:111
129998120,8rtkit-daemon757166-21tr09:40:170
129998120,7rtkit-daemon739-21wpa_supplicant08:15:111
129998120,4rtkit-daemon945642-21ssh11:41:512
129998120,3rtkit-daemon3428581-21gmain09:12:151
10179802124,5sleep21019412-21kthreadcore12:30:172
10169162121,8sleep01017052-21grep12:30:150
9987052111,2sleep10-21swapper/112:15:201
9756232110,8sleep0975755-21mailstats12:00:250
9157622110,8sleep0915922-21sed11:25:000
8560952110,8sleep2857768-21grep10:45:172
8385172110,1sleep10-21swapper/110:35:011
6757122110,8sleep0676263-21ps08:45:160
129998110,7rtkit-daemon739-21wpa_supplicant11:54:302
129998110,7rtkit-daemon604480-21kthreadcore07:35:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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