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2025-12-26 - 12:55
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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 Dec 26, 2025 00:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39730819945123,28cyclictest0-21swapper/420:23:5110
39731079944814,28cyclictest0-21swapper/1219:29:384
3973103994397,429cyclictest0-21swapper/1120:11:533
3973093994370,12cyclictest0-21swapper/820:28:4614
3973093994370,12cyclictest0-21swapper/820:28:4514
39730789943526,408cyclictest9380-21Softwar~cThread22:57:139
3973103994300,26cyclictest0-21swapper/1123:09:513
3973113994290,428cyclictest0-21swapper/1422:57:366
3973101994290,27cyclictest0-21swapper/1021:14:442
3973113994280,428cyclictest0-21swapper/1423:42:226
39731079942823,402cyclictest85950irq/168-nvme1q521:16:224
39731079942820,404cyclictest0-21swapper/1222:17:364
397310199428425,2cyclictest4040674-21kworker/u64:4+events_unbound20:56:232
3973113994270,10cyclictest0-21swapper/1423:08:236
39731079942722,405cyclictest0-21swapper/1223:17:534
39731079942721,404cyclictest0-21swapper/1219:19:314
3973113994260,425cyclictest0-21swapper/1421:26:466
3973113994260,425cyclictest0-21swapper/1400:05:596
39731079942625,398cyclictest0-21swapper/1220:26:474
39731079942625,398cyclictest0-21swapper/1220:26:464
39731079942618,404cyclictest0-21swapper/1223:55:234
3973101994260,25cyclictest0-21swapper/1021:06:592
3973074994260,27cyclictest0-21swapper/200:10:168
3973113994250,425cyclictest0-21swapper/1422:40:226
3973113994250,424cyclictest0-21swapper/1419:28:406
3973113994250,20cyclictest0-21swapper/1423:00:456
39731079942518,405cyclictest0-21swapper/1219:32:394
39730789942519,405cyclictest0-21swapper/300:29:229
3973113994240,424cyclictest0-21swapper/1420:35:476
3973113994240,423cyclictest0-21swapper/1421:44:376
3973113994240,423cyclictest0-21swapper/1420:45:536
3973113994240,423cyclictest0-21swapper/1419:17:516
3973113994240,20cyclictest0-21swapper/1421:49:536
3973113994240,12cyclictest0-21swapper/1419:30:476
39731079942418,406cyclictest0-21swapper/1221:33:214
39731079942416,405cyclictest0-21swapper/1223:34:214
39731079942416,405cyclictest0-21swapper/1219:38:574
39731079942416,405cyclictest0-21swapper/1200:28:494
39731079942416,404cyclictest0-21swapper/1222:52:354
39731079942415,405cyclictest0-21swapper/1222:13:354
3973097994240,423cyclictest0-21swapper/922:46:2615
397307499424423,1cyclictest424975-21kworker/2:0+pm21:55:328
3973113994230,423cyclictest0-21swapper/1423:36:206
3973113994230,422cyclictest0-21swapper/1421:37:596
3973113994230,19cyclictest0-21swapper/1420:21:236
3973113994230,19cyclictest0-21swapper/1400:25:456
3973113994230,18cyclictest0-21swapper/1422:07:516
3973113994230,18cyclictest0-21swapper/1420:51:476
3973113994230,18cyclictest0-21swapper/1419:48:236
39731079942316,407cyclictest0-21swapper/1223:40:454
39731079942315,407cyclictest0-21swapper/1223:47:514
39731079942315,405cyclictest0-21swapper/1220:03:334
39730819942316,407cyclictest0-21swapper/423:25:4410
3973071994230,422cyclictest0-21swapper/121:48:281
3973113994220,422cyclictest0-21swapper/1400:01:456
3973113994220,421cyclictest0-21swapper/1423:27:466
39731079942215,0cyclictest0-21swapper/1219:54:294
39731079942214,406cyclictest0-21swapper/1200:19:454
3973113994210,421cyclictest0-21swapper/1423:12:216
3973113994210,421cyclictest0-21swapper/1422:11:376
3973113994210,420cyclictest0-21swapper/1423:16:226
3973113994210,420cyclictest0-21swapper/1420:13:566
3973113994210,420cyclictest0-21swapper/1400:31:226
3973113994210,16cyclictest0-21swapper/1423:30:296
397311199421420,1cyclictest676274-21kworker/13:1+i915-unordered22:43:235
3973113994200,420cyclictest0-21swapper/1421:51:346
3973113994200,420cyclictest0-21swapper/1420:01:556
3973113994200,16cyclictest0-21swapper/1420:41:286
39731079942014,403cyclictest0-21swapper/1223:50:594
39731079942014,403cyclictest0-21swapper/1223:50:584
39731079942012,405cyclictest0-21swapper/1221:57:434
39730789942019,401cyclictest0-21swapper/322:13:119
39730789942014,403cyclictest0-21swapper/320:47:589
397307199420420,0cyclictest0-21swapper/119:12:501
39731079941913,404cyclictest0-21swapper/1223:01:224
39731019941915,403cyclictest85450irq/166-nvme1q322:39:232
397309799419418,1cyclictest426695-21kworker/9:0+i915-unordered21:48:2715
39731079941812,404cyclictest0-21swapper/1222:40:454
39731079941812,404cyclictest0-21swapper/1220:05:344
39730839941810,407cyclictest0-21swapper/500:21:2011
39730839941810,407cyclictest0-21swapper/500:21:2011
3973113994170,416cyclictest0-21swapper/1420:58:416
397307199417417,0cyclictest0-21swapper/121:33:541
3973113994160,415cyclictest0-21swapper/1421:19:436
3973113994160,415cyclictest0-21swapper/1419:58:406
3973113994160,415cyclictest0-21swapper/1400:39:226
397311199416415,1cyclictest0-21swapper/1323:07:305
397311199416415,1cyclictest0-21swapper/1321:25:255
397311199416415,1cyclictest0-21swapper/1319:12:265
397309799416415,1cyclictest3992411-21kworker/9:2+i915-unordered19:12:5115
3973113994150,8cyclictest0-21swapper/1420:05:566
3973113994150,414cyclictest0-21swapper/1419:23:486
3973113994150,10cyclictest0-21swapper/1422:47:506
397311199415415,0cyclictest0-21swapper/1322:22:595
397311199415415,0cyclictest0-21swapper/1322:10:105
397311199415415,0cyclictest0-21swapper/1321:38:425
397311199415415,0cyclictest0-21swapper/1320:03:515
3973107994157,405cyclictest0-21swapper/1222:46:494
39731019941510,404cyclictest0-21swapper/1000:38:442
3973083994158,407cyclictest0-21swapper/520:01:3311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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