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2025-11-28 - 13:42
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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 rack0slot7.osadl.org (updated Fri Nov 28, 2025 00:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26899489947517,457cyclictest47-21ksoftirqd/219:21:418
26899489944212,27cyclictest0-21swapper/219:19:358
26899489944212,27cyclictest0-21swapper/219:19:358
2689993994180,417cyclictest0-21swapper/1519:20:247
26899759941710,407cyclictest0-21swapper/1020:17:222
268994899397395,2cyclictest2834214-21kworker/2:0+events20:17:238
268994899397395,2cyclictest0-21swapper/219:13:248
268997899393389,3cyclictest390842-21Renderer19:14:313
268995399390388,2cyclictest2536768-21kworker/3:1+events19:15:229
268995399390388,2cyclictest2536768-21kworker/3:1+events19:15:229
268996899383383,0cyclictest0-21swapper/819:13:5714
268994599379378,1cyclictest390842-21Renderer20:16:211
268997399378377,1cyclictest0-21swapper/919:17:5715
268997399378377,1cyclictest0-21swapper/919:17:5715
2689993993740,373cyclictest0-21swapper/1519:16:247
2689993993740,373cyclictest0-21swapper/1519:16:247
2689988993630,362cyclictest0-21swapper/1419:15:576
2689988993630,362cyclictest0-21swapper/1419:15:566
268996599353352,1cyclictest0-21swapper/719:14:5413
268996399353349,3cyclictest390842-21Renderer19:20:3812
268998599351348,2cyclictest2517849-21kworker/13:0+events19:18:245
268998599351348,2cyclictest2517849-21kworker/13:0+events19:18:245
268995599343340,3cyclictest323925-21gnome-shell20:17:5810
268996599332331,1cyclictest2708916-21kworker/7:1+i915-unordered19:20:2413
268997599326324,2cyclictest390842-21Renderer19:21:412
268997399321321,0cyclictest0-21swapper/920:16:2115
26899789931614,301cyclictest0-21swapper/1119:15:223
26899789931614,301cyclictest0-21swapper/1119:15:223
2689958993124,307cyclictest0-21swapper/519:18:2411
2689958993124,307cyclictest0-21swapper/519:18:2411
268995399311309,2cyclictest0-21swapper/319:14:319
268996399306305,1cyclictest2708485-21kworker/6:0+events19:15:5612
268996399306305,1cyclictest2708485-21kworker/6:0+events19:15:5612
2689955993060,306cyclictest0-21swapper/419:21:2310
2689968992988,289cyclictest10176-21neo4j.Scheduler20:17:4514
268997599294291,3cyclictest390842-21Renderer19:19:352
268997599294291,3cyclictest390842-21Renderer19:19:352
268998399292291,1cyclictest0-21swapper/1220:17:584
268996599292292,0cyclictest0-21swapper/719:19:5513
268996599292292,0cyclictest0-21swapper/719:19:5413
268999399288287,0cyclictest0-21swapper/1519:13:567
268998399287286,1cyclictest1325480-21kworker/12:0+events19:21:234
268994399283275,8cyclictest323654-21Xorg19:13:020
268995399282276,4cyclictest3413708-21Timer20:17:579
268997599281281,0cyclictest2708334-21kworker/10:2+pm19:13:142
2689988992790,279cyclictest0-21swapper/1419:20:386
268998399278272,6cyclictest323654-21Xorg19:18:014
268998399278272,6cyclictest323654-21Xorg19:18:014
268998899277277,0cyclictest0-21swapper/1419:13:576
268999399276276,0cyclictest0-21swapper/1520:15:537
268998899276275,0cyclictest0-21swapper/1420:15:516
268994399276273,3cyclictest2708242-21kworker/0:2+events20:17:460
268996399273267,5cyclictest390842-21Renderer19:12:2712
268994599271271,0cyclictest2736298-21kworker/1:0+pm19:21:341
268997399268267,1cyclictest0-21swapper/919:14:3315
268994599266262,3cyclictest390842-21Renderer19:15:341
268994599266262,3cyclictest390842-21Renderer19:15:331
268997899265264,1cyclictest0-21swapper/1120:16:583
268996399253251,2cyclictest2230925-21kworker/6:2+pm20:16:1212
268994399242239,2cyclictest0-21swapper/019:18:330
268994399242239,2cyclictest0-21swapper/019:18:320
268994599236231,4cyclictest390842-21Renderer19:14:321
268995599230226,3cyclictest323925-21gnome-shell19:12:5810
268995599230225,4cyclictest323654-21Xorg19:18:0110
268995599230225,4cyclictest323654-21Xorg19:18:0110
268997399214214,0cyclictest0-21swapper/919:21:3415
26890362214192,14sleep20-21swapper/219:06:548
268996599205201,3cyclictest323925-21gnome-shell20:15:5813
26890482203181,13sleep100-21swapper/1019:07:012
268996899194189,4cyclictest508279-21Renderer19:18:3314
268996899194189,4cyclictest508279-21Renderer19:18:3214
268997899190185,4cyclictest323654-21Xorg19:20:003
26893432182172,6sleep80-21swapper/819:09:0814
268998399178177,1cyclictest0-21swapper/1219:12:584
26894172178165,8sleep90-21swapper/919:09:4115
26893772177156,12sleep60-21swapper/619:09:2212
26891722172147,16sleep40-21swapper/419:08:0010
268995899169166,1cyclictest3413686-21Isolated09:53:5811
26894242169146,14sleep130-21swapper/1319:09:455
26892232169150,13sleep110-21swapper/1119:08:233
26890092169143,17sleep70-21swapper/719:06:4213
26893752163138,15sleep50-21swapper/519:09:2111
268994399146139,6cyclictest323925-21gnome-shell19:20:580
26894252143110,30sleep140-21swapper/1419:09:466
26894232143117,17sleep120-21swapper/1219:09:444
26889972111109,1sleep10-21swapper/119:06:361
2689361210840,57sleep150-21swapper/1519:09:167
26874442106104,1sleep00-21swapper/019:05:310
313968221050,1sleep6508452-21WebExtensions21:03:4212
268995399104104,0cyclictest0-21swapper/319:20:009
2689968998989,0cyclictest0-21swapper/819:20:5814
268996599852,81cyclictest2852836-21MediaSu~sor13
268896726752,9sleep30-21swapper/319:06:229
38777742660,0sleep10-21swapper/100:15:261
268994599612,35cyclictest2424825-21Isolated09:53:581
37938602590,0sleep140-21swapper/1423:55:216
2689975995920,27cyclictest3235997-21Timer00:31:452
268998899560,31cyclictest0-21swapper/1422:49:166
2689963995628,25cyclictest323654-21Xorg22:52:4012
268994399560,40cyclictest3560535-21MediaPD~oder0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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