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2025-02-09 - 09:03
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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 rack0slot6.osadl.org (updated Sun Feb 09, 2025 00:46:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
299348199684683,1cyclictest0-21swapper/520:52:2311
29934769956214,43cyclictest0-21swapper/322:23:449
29934869955325,29cyclictest0-21swapper/623:58:2212
2993476995519,44cyclictest0-21swapper/322:11:229
29934869954733,44cyclictest0-21swapper/621:40:2212
29934869954733,44cyclictest0-21swapper/621:40:2212
2993476995415,45cyclictest0-21swapper/322:19:229
29935119953422,0cyclictest0-21swapper/1320:56:235
29934819953465,467cyclictest0-21swapper/523:02:4311
29934869952935,492cyclictest0-21swapper/600:19:4512
29934869952930,0cyclictest0-21swapper/621:00:4212
29934769951949,0cyclictest0-21swapper/321:35:599
29935189951616,499cyclictest0-21swapper/1520:33:457
29935189951076,422cyclictest3146397-21kworker/15:1+i915-unordered22:40:237
29934869950941,0cyclictest0-21swapper/600:30:4512
29934769950739,0cyclictest0-21swapper/322:29:439
2993515995049,29cyclictest150-21ksoftirqd/1419:13:596
29934889950316,484cyclictest0-21swapper/719:31:4213
29934869950335,0cyclictest0-21swapper/623:39:4412
29935189950263,439cyclictest0-21swapper/1521:36:427
29934889950234,468cyclictest0-21swapper/719:49:2113
2993486995024,498cyclictest0-21swapper/623:45:2312
29935189950179,421cyclictest3167127-21kworker/15:2+i915-unordered00:16:227
2993515995011,498cyclictest0-21swapper/1419:23:216
2993515995000,499cyclictest0-21swapper/1419:53:206
29934769950032,0cyclictest0-21swapper/320:26:219
29935189949917,481cyclictest0-21swapper/1523:08:437
29935189949818,26cyclictest0-21swapper/1522:37:437
299348699497496,1cyclictest2966133-21kworker/6:1+i915-unordered19:17:5912
29934869949728,0cyclictest0-21swapper/619:37:2112
29935189949572,422cyclictest3064061-21kworker/15:0+events20:44:447
29935189948764,422cyclictest3129182-21kworker/15:0+i915-unordered22:45:237
29935189948156,424cyclictest3167127-21kworker/15:2+i915-unordered23:59:337
29935189948055,424cyclictest3150299-21kworker/15:2+events22:56:447
299351899480480,0cyclictest3129182-21kworker/15:0+i915-unordered22:16:457
299351899480478,2cyclictest3009586-21kworker/15:1+i915-unordered20:24:557
2993515994809,471cyclictest0-21swapper/1419:18:216
29935189947924,454cyclictest0-21swapper/1523:03:437
29935189947853,424cyclictest3205105-21kworker/15:0+i915-unordered00:20:587
299351599478449,29cyclictest0-21swapper/1423:14:426
29935189947721,456cyclictest0-21swapper/1520:58:587
29935189947519,455cyclictest0-21swapper/1522:02:467
29935189947348,424cyclictest3009586-21kworker/15:1+events20:10:207
299351899473472,1cyclictest3217636-21kworker/15:2+i915-unordered00:33:227
299351599473472,1cyclictest3075574-21kworker/14:1+i915-unordered21:00:436
2993476994730,468cyclictest0-21swapper/319:37:209
299351899472471,1cyclictest3052174-21kworker/15:2+events20:25:467
29935189947217,454cyclictest0-21swapper/1521:08:207
299351899471471,0cyclictest3009586-21kworker/15:1+events22:25:457
299350199471471,0cyclictest3136809-21kworker/11:1+events22:23:443
2993476994710,469cyclictest0-21swapper/321:41:239
2993476994710,469cyclictest0-21swapper/321:41:239
2993466994710,469cyclictest0-21swapper/021:41:220
2993466994710,469cyclictest0-21swapper/021:41:220
2993481994700,468cyclictest0-21swapper/521:41:2211
2993481994700,468cyclictest0-21swapper/521:41:2211
2993471994700,468cyclictest0-21swapper/221:35:438
299348199469464,2cyclictest2994004-21kworker/5:1+events20:56:2311
2993466994690,467cyclictest0-21swapper/019:37:200
29935189946814,454cyclictest0-21swapper/1523:10:337
299351599468411,28cyclictest0-21swapper/1420:37:436
29935189946713,0cyclictest0-21swapper/1521:25:467
299346699466436,30cyclictest0-21swapper/021:20:440
29935189946524,0cyclictest0-21swapper/1523:40:237
299348699464464,0cyclictest0-21swapper/619:26:2112
299347199464463,1cyclictest0-21swapper/222:34:438
29935189946321,441cyclictest0-21swapper/1520:53:227
299348699463463,0cyclictest3025972-21kworker/6:1+events21:07:4512
299350199462462,0cyclictest3040683-21kworker/11:2+i915-unordered20:29:203
299348699462462,0cyclictest0-21swapper/619:46:2012
29935189946020,439cyclictest0-21swapper/1523:18:427
299348699458457,1cyclictest0-21swapper/623:27:4512
299346899458458,0cyclictest0-21swapper/119:58:431
299351599457399,29cyclictest0-21swapper/1419:34:206
299350199457457,0cyclictest3005639-21kworker/11:0+events19:21:443
2993518994562,453cyclictest0-21swapper/1500:02:217
299351599455455,0cyclictest3200124-21kworker/14:2+i915-unordered00:19:466
299348699453453,0cyclictest3013459-21kworker/6:0+events19:56:4212
299351599452450,2cyclictest3196194-21kworker/14:0+i915-unordered23:58:216
29935189945112,438cyclictest0-21swapper/1500:25:437
29935049945023,30cyclictest0-21swapper/1220:34:424
299347699450449,1cyclictest0-21swapper/322:31:449
299350199448446,2cyclictest3052402-21kworker/11:1+i915-unordered21:35:593
299346699448447,1cyclictest0-21swapper/021:13:210
299351899447446,1cyclictest3009586-21kworker/15:1+i915-unordered21:30:467
299351899447446,1cyclictest0-21swapper/1521:58:457
2993478994477,439cyclictest0-21swapper/419:23:2110
299351599446445,1cyclictest3174774-21kworker/14:2+i915-unordered23:39:446
299348899446445,1cyclictest67750irq/164-i91520:31:2213
299351599445445,0cyclictest3103566-21kworker/14:2+events21:40:226
299351599445445,0cyclictest3103566-21kworker/14:2+events21:40:226
299351599445438,4cyclictest2973934-21kworker/14:0+i915-unordered19:37:206
299348899445444,1cyclictest67750irq/164-i91523:27:4413
299347699445445,0cyclictest0-21swapper/320:09:429
299351599443436,3cyclictest3204914-21kworker/14:1+i915-unordered00:30:456
299351199443442,1cyclictest0-21swapper/1320:33:225
299348899441441,0cyclictest0-21swapper/719:50:2213
2993478994400,439cyclictest0-21swapper/419:53:2110
299351899439439,0cyclictest3033044-21kworker/15:2+i915-unordered20:00:227
299350499439438,1cyclictest67750irq/164-i91519:23:214
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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