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2025-11-21 - 19:37
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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 rackcslot8.osadl.org (updated Fri Nov 21, 2025 12:49:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2403899336139,1cyclictest151rcu_preempt11:46:4814
192352262254,6sleep80-21swapper/807:05:1530
2408899156155,0cyclictest191-21ksoftirqd/2910:21:5822
2408899156155,0cyclictest191-21ksoftirqd/2910:21:5722
239139915635,104cyclictest0-21swapper/212:31:5412
239139915432,106cyclictest0-21swapper/211:15:3012
239289915322,81cyclictest151rcu_preempt11:34:3326
240619915222,129cyclictest0-21swapper/2511:25:2918
239139915231,68cyclictest0-21swapper/212:24:2612
239139915230,78cyclictest0-21swapper/210:39:0812
239139915230,78cyclictest0-21swapper/210:39:0812
239139915129,117cyclictest0-21swapper/209:13:0712
239139914930,70cyclictest0-21swapper/210:17:4612
239139914930,70cyclictest0-21swapper/210:17:4612
240619914822,71cyclictest0-21swapper/2509:35:1118
240619914822,71cyclictest0-21swapper/2509:35:1118
240619914722,119cyclictest0-21swapper/2510:15:1918
240619914722,119cyclictest0-21swapper/2510:15:1818
23919991470,98cyclictest0-21swapper/309:42:3123
239949914618,70cyclictest0-21swapper/1410:45:146
239949914618,70cyclictest0-21swapper/1410:45:136
23913991460,86cyclictest0-21swapper/212:00:5412
23928991440,84cyclictest0-21swapper/411:14:0726
240619914322,72cyclictest0-21swapper/2509:23:3918
239289914152,54cyclictest0-21swapper/412:30:2426
23919991414,117cyclictest0-21swapper/312:23:1523
23913991410,82cyclictest0-21swapper/207:46:3212
240619913922,86cyclictest15594-21taskset09:30:5118
240619913922,68cyclictest0-21swapper/2509:12:2518
240889913829,97cyclictest0-21swapper/2910:46:3222
240889913829,97cyclictest0-21swapper/2910:46:3222
240889913620,99cyclictest0-21swapper/2909:53:0622
240889913620,99cyclictest0-21swapper/2909:53:0522
240389913629,85cyclictest0-21swapper/2112:36:3014
240619913512,93cyclictest0-21swapper/2512:36:2618
240389913529,77cyclictest0-21swapper/2109:36:5714
240389913529,77cyclictest0-21swapper/2109:36:5614
240389913529,66cyclictest0-21swapper/2110:46:5614
240389913529,66cyclictest0-21swapper/2110:46:5614
240619913416,86cyclictest0-21swapper/2507:35:1018
240389913429,87cyclictest0-21swapper/2112:19:2414
240389913429,73cyclictest0-21swapper/2110:25:3414
240389913429,73cyclictest0-21swapper/2110:25:3414
240389913426,107cyclictest0-21swapper/2108:20:1714
23919991344,105cyclictest0-21swapper/312:05:1123
240889913349,54cyclictest0-21swapper/2907:28:0122
240889913328,69cyclictest0-21swapper/2911:24:3222
23919991330,87cyclictest0-21swapper/309:12:5123
240889913223,76cyclictest0-21swapper/2912:38:4722
240889913216,24cyclictest0-21swapper/2912:24:2022
24088991320,84cyclictest0-21swapper/2908:30:4822
240389913226,83cyclictest0-21swapper/2111:56:2514
240889913150,59cyclictest0-21swapper/2910:07:3222
240889913150,59cyclictest0-21swapper/2910:07:3222
240619913122,70cyclictest0-21swapper/2512:31:1318
240389913127,96cyclictest0-21swapper/2109:15:0214
240389913126,105cyclictest0-21swapper/2111:15:2214
240389913124,105cyclictest0-21swapper/2112:10:5114
23957991310,81cyclictest0-21swapper/811:45:2730
239139913142,58cyclictest0-21swapper/211:39:3312
239139913118,73cyclictest0-21swapper/209:38:4512
239139913118,73cyclictest0-21swapper/209:38:4512
240889913051,61cyclictest0-21swapper/2910:53:3022
240889913051,61cyclictest0-21swapper/2910:53:2922
240389913024,74cyclictest0-21swapper/2110:21:5014
240389913024,74cyclictest0-21swapper/2110:21:4914
240389913022,85cyclictest0-21swapper/2111:44:4014
240389913022,107cyclictest0-21swapper/2111:51:2514
23907991300,82cyclictest0-21swapper/112:11:031
24075991295,93cyclictest0-21swapper/2711:20:2620
240389912921,20cyclictest0-21swapper/2109:54:0314
240389912921,20cyclictest0-21swapper/2109:54:0214
23919991293,120cyclictest0-21swapper/308:14:3323
23919991290,86cyclictest0-21swapper/309:03:1123
240889912851,55cyclictest0-21swapper/2912:08:1522
240889912840,57cyclictest0-21swapper/2912:16:1922
240889912838,62cyclictest0-21swapper/2909:48:0422
240889912825,64cyclictest0-21swapper/2907:22:4122
24075991285,119cyclictest0-21swapper/2710:14:2720
24075991285,119cyclictest0-21swapper/2710:14:2620
240389912821,106cyclictest0-21swapper/2110:12:4514
240389912821,106cyclictest0-21swapper/2110:12:4414
239289912811,71cyclictest0-21swapper/410:23:3126
239289912811,71cyclictest0-21swapper/410:23:3026
239199912820,51cyclictest0-21swapper/310:50:2423
239199912820,51cyclictest0-21swapper/310:50:2323
240889912734,68cyclictest0-21swapper/2909:32:3522
240889912733,60cyclictest0-21swapper/2910:33:1122
240889912733,60cyclictest0-21swapper/2910:33:1122
240889912731,62cyclictest0-21swapper/2911:28:1422
23994991270,88cyclictest0-21swapper/1409:37:536
23994991270,88cyclictest0-21swapper/1409:37:526
240889912635,61cyclictest0-21swapper/2909:13:3322
240889912629,68cyclictest0-21swapper/2911:39:5922
240889912628,66cyclictest0-21swapper/2909:21:0222
240889912627,64cyclictest0-21swapper/2907:43:1522
240889912626,64cyclictest0-21swapper/2912:32:5322
24075991265,106cyclictest0-21swapper/2711:49:5620
240389912621,74cyclictest0-21swapper/2108:45:2414
240389912620,74cyclictest0-21swapper/2109:33:4414
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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