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2026-07-09 - 07:34
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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 Thu Jul 09, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23146759958262,520cyclictest0-21swapper/220:12:308
231472299537419,88cyclictest0-21swapper/1422:10:306
2314717995330,531cyclictest0-21swapper/1223:17:304
231468199530529,1cyclictest1961861-21kworker/4:1+i915-unordered19:14:3010
2314727995286,521cyclictest0-21swapper/1520:22:307
2314722995274,520cyclictest0-21swapper/1423:25:306
2314681995275,521cyclictest0-21swapper/419:32:3010
2314666995253,521cyclictest0-21swapper/020:43:300
231468199516516,0cyclictest0-21swapper/419:17:3010
231469499505502,2cyclictest2380794-21kworker/7:1+i915-unordered20:22:3013
231471799490489,1cyclictest0-21swapper/1219:14:304
231471799487486,1cyclictest2328096-21kworker/12:0+i915-unordered19:32:304
231471799478477,1cyclictest0-21swapper/1220:00:304
231471799477477,0cyclictest2578176-21kworker/12:1+i915-unordered00:04:294
231470599477476,1cyclictest2344329-21kworker/10:0+i915-unordered20:12:302
23146759947726,30cyclictest0-21swapper/219:57:538
231471799476476,0cyclictest2142355-21kworker/12:2+i915-unordered19:17:304
231470599476476,0cyclictest2319908-21kworker/10:0+i915-unordered19:23:302
23146759947323,29cyclictest0-21swapper/222:18:128
23147009946920,446cyclictest0-21swapper/921:10:5215
23146949946519,29cyclictest0-21swapper/700:06:2513
23146949946318,444cyclictest0-21swapper/722:52:2913
23146759946323,29cyclictest0-21swapper/221:48:308
23146759946318,30cyclictest0-21swapper/220:29:308
23147229945815,30cyclictest0-21swapper/1423:20:296
2314700994579,29cyclictest0-21swapper/919:25:5315
231472799456453,3cyclictest1818-21snmpd20:02:057
23147179945314,30cyclictest0-21swapper/1220:59:304
231470099451448,3cyclictest2402839-21kworker/9:1+pm20:49:0415
2314717994505,445cyclictest0-21swapper/1222:22:294
231467099450450,0cyclictest0-21swapper/100:11:051
231467099450450,0cyclictest0-21swapper/100:11:051
231471299448447,1cyclictest1818-21snmpd23:55:023
231467799448448,0cyclictest0-21swapper/323:55:029
231468999447417,30cyclictest0-21swapper/623:00:3012
2314675994474,29cyclictest0-21swapper/221:30:308
23146759944724,419cyclictest0-21swapper/222:23:528
2314675994470,30cyclictest0-21swapper/219:37:128
23146669944725,421cyclictest0-21swapper/020:36:530
231472299446443,3cyclictest0-21swapper/1419:21:516
23146759944626,418cyclictest0-21swapper/221:37:538
23146759944625,419cyclictest0-21swapper/222:09:528
23146759944625,418cyclictest0-21swapper/219:53:148
23146759944623,421cyclictest0-21swapper/222:31:128
23146759944623,421cyclictest0-21swapper/221:32:508
23146709944626,419cyclictest0-21swapper/100:03:151
2314717994453,29cyclictest0-21swapper/1223:12:294
23146759944524,419cyclictest0-21swapper/222:03:528
23146759944524,419cyclictest0-21swapper/221:25:528
23146759944524,419cyclictest0-21swapper/221:25:528
23146759944524,419cyclictest0-21swapper/219:28:528
23146759944524,418cyclictest0-21swapper/222:42:518
23146759944524,418cyclictest0-21swapper/221:17:518
23146759944524,418cyclictest0-21swapper/221:17:518
23146759944524,418cyclictest0-21swapper/200:31:518
2314694994440,443cyclictest0-21swapper/700:22:2913
2314675994440,29cyclictest0-21swapper/220:58:308
23146669944422,421cyclictest0-21swapper/022:22:150
231468999443440,2cyclictest2473190-21kworker/6:1+i915-unordered22:29:3012
23146759944322,418cyclictest0-21swapper/221:53:158
23146669944324,418cyclictest0-21swapper/022:10:140
231472799442439,2cyclictest2332583-21kworker/u64:1+events_unbound19:33:137
231469699442441,1cyclictest2394277-21kworker/8:5+i915-unordered20:43:3014
23146859944226,415cyclictest0-21swapper/523:24:2911
23146669944222,419cyclictest0-21swapper/019:57:150
23146669944220,421cyclictest0-21swapper/023:12:520
23147009944115,28cyclictest0-21swapper/923:29:1315
23146669944120,420cyclictest0-21swapper/023:57:510
23146669944120,419cyclictest0-21swapper/020:16:140
23146669944119,421cyclictest0-21swapper/000:29:130
231469699440439,1cyclictest0-21swapper/823:03:3014
23146859944023,416cyclictest0-21swapper/519:48:3011
23146709944024,415cyclictest0-21swapper/100:34:291
23146669944017,422cyclictest0-21swapper/000:09:510
23146669944017,422cyclictest0-21swapper/000:09:510
23147179943923,415cyclictest0-21swapper/1219:49:514
23146819943916,422cyclictest0-21swapper/423:21:5110
23146669943916,422cyclictest0-21swapper/020:57:120
231472799438432,5cyclictest1818-21snmpd23:08:037
23146969943819,418cyclictest0-21swapper/821:41:5314
23146969943818,419cyclictest0-21swapper/820:51:5214
23146969943719,417cyclictest0-21swapper/800:06:5214
23146969943719,417cyclictest0-21swapper/800:06:5214
231467799437436,1cyclictest0-21swapper/323:20:049
2314675994370,28cyclictest0-21swapper/223:10:298
23146669943717,419cyclictest0-21swapper/020:11:140
231471299436435,1cyclictest2525862-21kworker/11:0+pm23:20:043
23146949943621,414cyclictest0-21swapper/720:19:3013
23146819943614,421cyclictest0-21swapper/421:27:1310
23146819943614,421cyclictest0-21swapper/421:16:5110
23146819943614,421cyclictest0-21swapper/421:16:5110
23146759943615,419cyclictest0-21swapper/221:12:168
23146669943617,418cyclictest0-21swapper/020:54:300
23146669943614,421cyclictest0-21swapper/020:47:140
23146969943416,418cyclictest0-21swapper/819:36:1514
23146759943416,417cyclictest0-21swapper/222:13:298
23146669943413,420cyclictest0-21swapper/019:47:150
23147279943313,419cyclictest0-21swapper/1522:56:527
2314722994330,23cyclictest0-21swapper/1400:24:296
23146819943312,420cyclictest0-21swapper/419:27:5110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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