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2026-05-06 - 09:08
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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 rack0slot5.osadl.org (updated Wed May 06, 2026 00:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4174211994510,0cyclictest0-21swapper/1400:28:526
4174211994510,0cyclictest0-21swapper/1400:28:526
417417099420417,2cyclictest84369-21kworker/u64:5+events_unbound22:15:2910
417418599408405,2cyclictest84368-21kworker/u64:3+events_unbound22:56:4514
417415999402401,0cyclictest273650-21sensors00:28:521
417415999402401,0cyclictest273650-21sensors00:28:521
417419899401400,1cyclictest0-21swapper/1123:07:263
417421699399399,0cyclictest0-21swapper/1523:46:507
41735032393385,5sleep50-21swapper/519:06:2411
41736402389382,4sleep40-21swapper/419:07:1110
417418899384384,0cyclictest0-21swapper/922:56:4515
417418899382382,0cyclictest0-21swapper/922:15:2915
41737012374350,14sleep100-21swapper/1019:07:332
41733652360304,16sleep70-21swapper/719:05:3713
41737252358308,15sleep30-21swapper/319:07:429
41737552357347,6sleep130-21swapper/1319:07:525
417418899356355,1cyclictest0-21swapper/900:28:5215
417418899356355,1cyclictest0-21swapper/900:28:5215
41735282355329,15sleep120-21swapper/1219:06:314
417418199353350,3cyclictest3327141-21Renderer23:46:5013
417420399345345,0cyclictest0-21swapper/1222:15:294
41735332344319,15sleep150-21swapper/1519:06:347
41731962341315,16sleep140-21swapper/1419:04:406
41735802334307,16sleep00-21swapper/019:06:510
41731292333307,15sleep60-21swapper/619:04:1612
41700522333310,12sleep110-21swapper/1119:03:493
41731772332306,15sleep80-21swapper/819:04:3414
41732332331306,15sleep90-21swapper/919:04:5115
41733932330305,15sleep20-21swapper/219:05:488
41731152328302,16sleep10-21swapper/119:04:111
417417899314310,3cyclictest246187-21kworker/u64:6+events_unbound00:28:5212
417417899314310,3cyclictest246187-21kworker/u64:6+events_unbound00:28:5212
417420799312304,7cyclictest3315852-21Xorg21:11:255
4174203993120,1cyclictest0-21swapper/1200:00:254
417416499312304,6cyclictest3315852-21Xorg00:31:558
417416499312304,6cyclictest3315852-21Xorg00:31:558
4174203993110,1cyclictest0-21swapper/1223:04:364
417421199310305,4cyclictest3327141-21Renderer23:14:196
4174211993100,305cyclictest0-21swapper/1422:39:256
417420799310302,7cyclictest3315852-21Xorg20:03:265
417420399310304,5cyclictest3327141-21Renderer20:35:084
4174193993100,1cyclictest0-21swapper/1020:24:262
4174174993105,304cyclictest0-21swapper/500:28:5211
4174174993105,304cyclictest0-21swapper/500:28:5211
417419899309303,5cyclictest3327141-21Renderer00:27:013
417419899309303,5cyclictest3327141-21Renderer00:27:013
417415599309305,3cyclictest0-21swapper/020:12:260
4174198993080,307cyclictest0-21swapper/1100:08:293
4174198993080,305cyclictest0-21swapper/1120:42:303
417419399308302,5cyclictest3315852-21Xorg20:36:262
417418899308302,5cyclictest3315852-21Xorg23:20:2615
4174188993080,306cyclictest0-21swapper/923:10:0615
417417899308301,6cyclictest3315852-21Xorg21:57:2512
417415999308303,4cyclictest3315852-21Xorg00:15:251
417420799307298,8cyclictest3327141-21Renderer21:03:545
417418599307302,4cyclictest3327141-21Renderer20:27:0714
417416499307302,4cyclictest3327141-21Renderer00:10:558
417416499307300,6cyclictest3315852-21Xorg22:02:558
417415999307304,2cyclictest4100978-21kworker/1:0+events22:56:451
417421699306300,5cyclictest3327141-21Renderer21:36:157
417421699306300,5cyclictest3327141-21Renderer21:36:157
4174211993060,1cyclictest0-21swapper/1421:55:496
4174207993060,305cyclictest0-21swapper/1322:07:255
417420399306301,4cyclictest0-21swapper/1221:46:254
4174193993060,305cyclictest0-21swapper/1000:18:252
4174188993060,305cyclictest0-21swapper/923:47:2615
417418599306300,5cyclictest3317081-21Renderer23:48:4714
417417499306301,4cyclictest3315852-21Xorg20:08:2511
4174174993060,1cyclictest0-21swapper/500:12:3611
417417099306301,4cyclictest3315852-21Xorg00:04:3010
4174159993060,305cyclictest1-21systemd21:43:301
4174159993060,305cyclictest1-21systemd21:43:301
4174159993060,1cyclictest0-21swapper/121:13:251
417421699305297,7cyclictest3317081-21Renderer22:30:337
417421699305296,8cyclictest3327141-21Renderer19:39:447
417418199305300,4cyclictest3316115-21gnome-shell22:51:2913
417418199305297,7cyclictest3316115-21gnome-shell21:08:3013
417417099305300,4cyclictest3327141-21Renderer22:33:2510
417415999305302,2cyclictest4100978-21kworker/1:0+events22:15:291
417420799304301,2cyclictest0-21swapper/1322:47:255
417417899304299,4cyclictest0-21swapper/620:01:5512
417417899304297,6cyclictest3315852-21Xorg21:52:5512
417416699304299,4cyclictest3315852-21Xorg23:25:259
417415599304298,5cyclictest3327141-21Renderer21:19:080
417420799303301,1cyclictest0-21swapper/1321:49:265
417419399303300,2cyclictest0-21swapper/1000:07:552
417416499303300,2cyclictest0-21swapper/222:10:308
417421699302300,1cyclictest0-21swapper/1522:16:257
417421199302300,1cyclictest0-21swapper/1423:49:406
417420799302299,2cyclictest0-21swapper/1319:43:255
417420399302297,4cyclictest3315852-21Xorg21:28:304
417417899302300,1cyclictest0-21swapper/621:10:4612
417417499302298,3cyclictest0-21swapper/523:13:3911
417417099302300,1cyclictest0-21swapper/400:34:5310
417415599302300,1cyclictest0-21swapper/021:41:560
417415599302300,1cyclictest0-21swapper/021:41:560
417421699301299,1cyclictest0-21swapper/1523:31:537
417419399301295,5cyclictest3315852-21Xorg21:00:252
417417499301298,2cyclictest3337460-21Isolated19:07:4111
417417099301296,4cyclictest3315852-21Xorg21:16:2610
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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