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2026-01-10 - 11:26
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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 Sat Jan 10, 2026 00:48:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
76639929653,202cyclictest151rcu_preempt19:26:429
76579927174,60cyclictest151rcu_preempt22:11:137
63922245237,6sleep60-21swapper/619:09:1028
766399240142,57cyclictest0-21swapper/1720:27:349
766399240142,57cyclictest0-21swapper/1720:27:349
76989915136,113cyclictest0-21swapper/2419:25:0017
76849915021,102cyclictest0-21swapper/2122:05:1214
75919914526,72cyclictest0-21swapper/021:49:200
76809914462,81cyclictest0-21swapper/2022:30:1913
75919914426,71cyclictest0-21swapper/019:35:170
75919914425,101cyclictest0-21swapper/022:04:560
77149914325,58cyclictest0-21swapper/2821:36:3021
77149914325,58cyclictest0-21swapper/2821:36:3021
75919914325,117cyclictest0-21swapper/000:15:180
7722991421,120cyclictest0-21swapper/3022:26:2624
7706991420,87cyclictest0-21swapper/2621:49:2919
7670991410,87cyclictest0-21swapper/1822:36:5510
7722991401,116cyclictest0-21swapper/3022:35:0224
7722991401,102cyclictest0-21swapper/3022:03:2724
7633991400,95cyclictest70-21ksoftirqd/922:44:4731
7591991400,87cyclictest0-21swapper/022:35:250
7722991391,101cyclictest0-21swapper/3000:02:2924
76849913949,87cyclictest151rcu_preempt00:09:5714
76989913836,59cyclictest0-21swapper/2423:06:4917
76989913832,105cyclictest0-21swapper/2400:32:3117
76849913855,63cyclictest20608-21taskset22:28:4114
7722991372,126cyclictest0-21swapper/3000:05:1824
7722991371,100cyclictest0-21swapper/3022:42:2824
76989913731,101cyclictest0-21swapper/2400:12:1117
76989913631,77cyclictest0-21swapper/2421:40:1517
76989913631,77cyclictest0-21swapper/2421:40:1517
75919913636,93cyclictest0-21swapper/023:35:130
7714991350,85cyclictest0-21swapper/2823:38:2121
76989913529,77cyclictest0-21swapper/2400:00:1217
7684991350,84cyclictest0-21swapper/2121:34:2814
7684991350,84cyclictest0-21swapper/2121:34:2714
76849913376,49cyclictest0-21swapper/2123:28:4314
7633991333,87cyclictest0-21swapper/923:32:2131
7633991333,79cyclictest0-21swapper/923:37:0931
75919913336,96cyclictest0-21swapper/022:25:130
77069913241,59cyclictest0-21swapper/2621:37:3319
77069913241,59cyclictest0-21swapper/2621:37:3219
7633991320,85cyclictest0-21swapper/921:34:4731
7633991320,85cyclictest0-21swapper/921:34:4731
7633991320,78cyclictest0-21swapper/919:40:2631
75919913224,74cyclictest0-21swapper/021:30:570
75919913224,74cyclictest0-21swapper/021:30:570
77149913119,82cyclictest0-21swapper/2823:42:5121
77069913127,62cyclictest0-21swapper/2600:09:3119
7633991319,75cyclictest0-21swapper/923:44:5431
77069913024,61cyclictest0-21swapper/2600:36:1419
76989913025,84cyclictest0-21swapper/2423:20:2217
76989913024,105cyclictest0-21swapper/2422:41:0517
76849913047,53cyclictest0-21swapper/2123:17:3514
7633991301,78cyclictest0-21swapper/900:31:0831
77069912928,70cyclictest0-21swapper/2620:05:1919
77069912925,64cyclictest0-21swapper/2600:22:5219
77069912846,59cyclictest0-21swapper/2621:50:3219
77069912845,66cyclictest0-21swapper/2622:24:1419
77069912831,72cyclictest0-21swapper/2620:48:3519
77069912831,72cyclictest0-21swapper/2620:48:3419
77069912827,66cyclictest0-21swapper/2619:45:2219
76989912823,73cyclictest0-21swapper/2421:53:2217
76849912827,56cyclictest0-21swapper/2121:46:1214
7633991281,76cyclictest0-21swapper/919:10:3231
7633991280,83cyclictest0-21swapper/921:21:2631
7633991280,83cyclictest0-21swapper/921:21:2531
75919912820,75cyclictest0-21swapper/023:21:510
75919912819,73cyclictest0-21swapper/021:42:290
75919912819,73cyclictest0-21swapper/021:42:290
77069912746,62cyclictest0-21swapper/2600:02:0119
77069912742,56cyclictest0-21swapper/2623:19:3319
77069912729,62cyclictest0-21swapper/2619:30:1819
77069912727,64cyclictest0-21swapper/2623:44:2419
76849912764,40cyclictest0-21swapper/2121:26:1114
76849912764,40cyclictest0-21swapper/2121:26:1014
76849912743,54cyclictest0-21swapper/2122:01:1014
76849912727,60cyclictest0-21swapper/2120:18:3414
76849912726,62cyclictest0-21swapper/2119:30:2914
77069912629,62cyclictest0-21swapper/2623:26:4519
77069912628,63cyclictest0-21swapper/2622:25:1919
77069912626,67cyclictest0-21swapper/2622:50:2619
77069912626,61cyclictest0-21swapper/2619:40:1219
77069912625,65cyclictest0-21swapper/2622:39:4219
76989912620,91cyclictest0-21swapper/2420:00:1917
76849912627,75cyclictest143-21ksoftirqd/2122:23:0414
76849912625,63cyclictest0-21swapper/2121:55:4914
76849912623,60cyclictest0-21swapper/2120:05:4914
76339912626,86cyclictest15918-21taskset23:07:3131
77069912526,65cyclictest0-21swapper/2621:55:2219
76849912571,48cyclictest0-21swapper/2123:41:0614
76849912554,46cyclictest0-21swapper/2120:40:2014
76849912554,46cyclictest0-21swapper/2120:40:1914
76849912525,67cyclictest0-21swapper/2119:45:2814
76849912524,60cyclictest0-21swapper/2119:24:0514
7722991241,87cyclictest0-21swapper/3023:45:0024
77149912448,53cyclictest0-21swapper/2822:52:4421
77069912443,53cyclictest0-21swapper/2619:35:2319
77069912431,67cyclictest0-21swapper/2622:01:4719
77069912429,72cyclictest0-21swapper/2623:58:1819
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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