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2026-04-18 - 03:45
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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 Sat Apr 18, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30667299721328,393cyclictest0-21swapper/1123:05:023
3066879956710,27cyclictest0-21swapper/1423:48:036
3066489954610,535cyclictest0-21swapper/521:53:0311
3066459951110,498cyclictest0-21swapper/423:45:0310
3066299950620,27cyclictest0-21swapper/022:17:030
30666799502500,2cyclictest335499-21kworker/10:1+i915-unordered19:50:032
3066299950219,44cyclictest0-21swapper/021:06:030
30663499501471,30cyclictest0-21swapper/120:48:031
3066299950025,58cyclictest0-21swapper/022:11:240
30665399497496,1cyclictest532591-21kworker/6:2+i915-unordered23:52:0312
3066299949528,28cyclictest0-21swapper/022:33:030
3066299949517,477cyclictest0-21swapper/019:51:030
3066879949011,58cyclictest0-21swapper/1420:32:486
306657994900,0cyclictest0-21swapper/719:51:0313
3066459949018,59cyclictest61-21ksoftirqd/420:18:0310
30666799487487,0cyclictest470940-21kworker/10:2+i915-unordered23:02:032
30665399485483,1cyclictest480331-21kworker/6:2+i915-unordered22:58:0312
30663499480478,2cyclictest0-21swapper/119:51:031
306629994770,0cyclictest0-21swapper/021:36:030
3066919947326,30cyclictest0-21swapper/1500:06:477
3066879947223,29cyclictest0-21swapper/1422:45:246
3066729947225,28cyclictest0-21swapper/1120:35:483
3066849947023,30cyclictest0-21swapper/1300:14:255
3066849947023,30cyclictest0-21swapper/1300:14:255
3066729947022,29cyclictest0-21swapper/1120:43:253
30665399470469,1cyclictest403942-21kworker/6:0+i915-unordered21:36:0312
3066299947031,437cyclictest0-21swapper/019:36:030
3066879946827,29cyclictest0-21swapper/1400:01:026
30662999465465,0cyclictest0-21swapper/000:02:030
3066729946418,30cyclictest0-21swapper/1123:20:483
3066489946319,29cyclictest0-21swapper/522:40:0311
306629994637,455cyclictest0-21swapper/023:48:030
30662999462462,0cyclictest0-21swapper/022:08:030
3066459946017,30cyclictest61-21ksoftirqd/420:57:0310
306629994600,459cyclictest0-21swapper/021:56:030
3066459945916,29cyclictest61-21ksoftirqd/423:42:0210
306645994556,30cyclictest0-21swapper/421:48:2610
3066649945326,29cyclictest0-21swapper/921:04:2315
30663699453422,31cyclictest0-21swapper/219:50:038
3066879945225,29cyclictest0-21swapper/1421:30:476
30669199451450,1cyclictest1777-21ntpd19:41:377
3066919945125,29cyclictest0-21swapper/1521:08:477
306691994510,30cyclictest0-21swapper/1521:39:457
3066489945112,30cyclictest0-21swapper/521:55:0311
306648994508,433cyclictest387959-21sleep20:53:5811
3066879944922,30cyclictest0-21swapper/1419:38:256
3066879944823,29cyclictest0-21swapper/1419:12:256
30668499448447,1cyclictest319470-21kworker/13:1+pm19:41:375
306636994486,30cyclictest0-21swapper/223:02:038
3066299944823,29cyclictest0-21swapper/021:21:250
3066299944823,29cyclictest0-21swapper/021:21:250
3066459944723,423cyclictest0-21swapper/422:24:2410
306636994465,29cyclictest0-21swapper/219:42:038
30666799445445,0cyclictest0-21swapper/1019:48:032
30666799445445,0cyclictest0-21swapper/1000:22:022
30666799445445,0cyclictest0-21swapper/1000:22:022
3066349944521,30cyclictest0-21swapper/100:10:021
3066349944521,30cyclictest0-21swapper/100:10:021
30666799443440,3cyclictest1818-21snmpd19:36:162
30662999443443,0cyclictest0-21swapper/023:30:030
3066879944223,416cyclictest0-21swapper/1420:48:496
3066879944223,0cyclictest0-21swapper/1423:02:466
30666799442439,3cyclictest559439-21kworker/u64:0+events_unbound00:27:032
3066649944122,418cyclictest0-21swapper/919:27:4815
3066649944121,419cyclictest0-21swapper/900:34:4615
3066649944121,418cyclictest0-21swapper/900:19:2315
3066649944121,418cyclictest0-21swapper/900:19:2315
306659994410,3cyclictest0-21swapper/800:13:1414
306659994410,3cyclictest0-21swapper/800:13:1414
30665799441438,3cyclictest1818-21snmpd23:02:3613
306648994411,28cyclictest0-21swapper/522:36:0311
30662999441436,4cyclictest1818-21snmpd21:09:150
3066919944019,418cyclictest0-21swapper/1520:44:257
3066879944019,420cyclictest0-21swapper/1400:21:486
3066879944019,420cyclictest0-21swapper/1400:21:486
3066879943922,0cyclictest0-21swapper/1422:58:256
30666499439438,1cyclictest0-21swapper/921:09:1515
3066369943924,414cyclictest0-21swapper/219:56:038
3066299943919,419cyclictest0-21swapper/021:44:250
3066879943820,416cyclictest0-21swapper/1422:27:486
3066849943823,414cyclictest0-21swapper/1321:32:035
3066809943815,419cyclictest0-21swapper/1220:28:244
3066649943817,419cyclictest0-21swapper/919:32:2515
3066369943724,412cyclictest0-21swapper/220:31:038
30668499436435,1cyclictest435998-21kworker/13:2+i915-unordered21:53:035
3066849943615,419cyclictest0-21swapper/1321:28:255
3066849943615,419cyclictest0-21swapper/1321:28:255
3066849943614,418cyclictest0-21swapper/1319:57:455
3066809943614,421cyclictest0-21swapper/1200:22:464
3066809943614,421cyclictest0-21swapper/1200:22:464
3066809943613,421cyclictest0-21swapper/1222:25:254
3066849943516,417cyclictest0-21swapper/1322:56:265
3066809943515,418cyclictest0-21swapper/1222:38:464
3066809943514,419cyclictest0-21swapper/1223:35:244
3066649943515,418cyclictest0-21swapper/919:53:2615
3066299943516,418cyclictest0-21swapper/022:44:260
3066849943414,420cyclictest0-21swapper/1323:44:465
3066849943414,419cyclictest0-21swapper/1323:26:485
3066849943414,418cyclictest0-21swapper/1322:14:475
3066849943414,418cyclictest0-21swapper/1322:05:245
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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