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2025-11-28 - 12:42
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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 28, 2025 00:49:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1071899300102,1cyclictest151rcu_preempt22:06:4422
106309929294,1cyclictest151rcu_preempt00:38:238
10626991958,156cyclictest441-21pr/earlyser022:50:467
2482911880,180ptp4l0-21swapper/119:05:211
106669917047,119cyclictest0-21swapper/2122:12:4314
1069999167115,33cyclictest0-21swapper/2623:43:2219
10626991606,143cyclictest0-21swapper/1519:10:247
106669915937,82cyclictest0-21swapper/2122:18:3614
106669915933,125cyclictest0-21swapper/2121:39:3514
10626991584,147cyclictest0-21swapper/1522:29:437
10626991575,116cyclictest1455-21ssh23:01:477
106669915630,124cyclictest0-21swapper/2100:28:2214
106669915430,80cyclictest0-21swapper/2122:43:2714
10626991536,91cyclictest0-21swapper/1522:36:087
106669915134,59cyclictest0-21swapper/2120:00:1214
106669915134,59cyclictest0-21swapper/2120:00:1214
10550991510,86cyclictest0-21swapper/323:25:2223
106669914542,69cyclictest0-21swapper/2121:40:3914
10626991455,93cyclictest0-21swapper/1519:17:547
10593991450,84cyclictest0-21swapper/1022:23:452
10626991446,82cyclictest0-21swapper/1521:31:277
10666991420,83cyclictest0-21swapper/2119:26:0014
106939914034,24cyclictest0-21swapper/2523:59:0818
106849913824,66cyclictest0-21swapper/2421:56:0017
106669913825,70cyclictest0-21swapper/2121:53:2914
10599991360,88cyclictest0-21swapper/1100:27:463
10599991360,83cyclictest0-21swapper/1121:14:193
105509913638,48cyclictest0-21swapper/321:40:2123
106939913534,59cyclictest0-21swapper/2523:40:2618
106939913532,67cyclictest0-21swapper/2522:11:1118
105669913551,60cyclictest0-21swapper/621:41:2828
105669913530,62cyclictest0-21swapper/600:28:1228
106939913432,101cyclictest0-21swapper/2522:00:1418
106849913452,62cyclictest0-21swapper/2423:30:3617
106849913438,55cyclictest0-21swapper/2421:10:0217
106849913427,61cyclictest0-21swapper/2400:28:2217
105669913427,69cyclictest0-21swapper/622:50:2528
106849913346,59cyclictest0-21swapper/2421:39:2617
106849913329,70cyclictest0-21swapper/2423:26:1917
106849913328,69cyclictest0-21swapper/2421:25:3617
105999913338,71cyclictest151rcu_preempt21:45:503
105939913324,82cyclictest0-21swapper/1022:40:192
105939913321,111cyclictest0-21swapper/1000:28:572
105509913344,58cyclictest0-21swapper/323:47:0023
106849913229,67cyclictest0-21swapper/2423:08:0617
106849913227,67cyclictest0-21swapper/2422:20:3517
106849913227,60cyclictest0-21swapper/2423:42:2117
106849913225,63cyclictest0-21swapper/2423:50:2317
10626991326,124cyclictest0-21swapper/1519:47:487
10626991326,124cyclictest0-21swapper/1519:47:487
105669913247,61cyclictest0-21swapper/623:32:3828
105669913231,69cyclictest0-21swapper/622:09:4828
105669913229,67cyclictest0-21swapper/619:20:2428
105669913228,67cyclictest0-21swapper/622:59:4528
105669913228,63cyclictest0-21swapper/619:58:5428
105669913228,63cyclictest0-21swapper/619:58:5328
105669913227,64cyclictest0-21swapper/621:30:1528
105509913237,62cyclictest0-21swapper/321:11:4423
107129913112,98cyclictest0-21swapper/2823:14:0521
106849913128,70cyclictest0-21swapper/2419:42:2517
106849913128,70cyclictest0-21swapper/2419:42:2517
106849913127,70cyclictest0-21swapper/2400:35:0217
106849913127,103cyclictest0-21swapper/2422:57:3717
105669913131,66cyclictest0-21swapper/623:20:2028
105669913128,66cyclictest0-21swapper/623:26:2328
105669913124,65cyclictest0-21swapper/621:55:2228
105509913151,59cyclictest0-21swapper/321:59:3523
105509913149,55cyclictest0-21swapper/300:30:1723
106939913027,61cyclictest0-21swapper/2521:14:0018
106849913032,75cyclictest0-21swapper/2421:20:1517
106849913029,68cyclictest0-21swapper/2400:15:1217
106849913027,67cyclictest0-21swapper/2423:55:1317
106849913026,67cyclictest0-21swapper/2423:02:1717
105939913076,49cyclictest0-21swapper/1023:12:232
105669913028,67cyclictest0-21swapper/621:51:0528
105669913027,60cyclictest0-21swapper/622:02:1928
105669913025,63cyclictest0-21swapper/621:03:4228
106849912929,65cyclictest0-21swapper/2423:13:2717
106849912928,65cyclictest0-21swapper/2423:48:1317
106849912927,67cyclictest0-21swapper/2423:36:2517
106849912927,66cyclictest0-21swapper/2422:47:1817
106849912926,66cyclictest0-21swapper/2420:10:1217
106849912926,66cyclictest0-21swapper/2420:10:1217
105939912946,64cyclictest0-21swapper/1021:34:352
105669912928,71cyclictest0-21swapper/622:46:4028
105669912928,68cyclictest0-21swapper/623:04:1828
105669912924,61cyclictest0-21swapper/622:40:4728
105509912941,57cyclictest0-21swapper/323:03:1123
105509912928,66cyclictest0-21swapper/323:36:5123
105509912927,69cyclictest0-21swapper/323:17:3723
105509912927,64cyclictest0-21swapper/300:19:3623
106669912845,57cyclictest0-21swapper/2122:32:4614
105669912829,65cyclictest0-21swapper/622:11:2428
105669912827,59cyclictest0-21swapper/620:27:1228
105669912827,59cyclictest0-21swapper/620:27:1228
105509912847,63cyclictest0-21swapper/321:25:2323
105509912833,60cyclictest0-21swapper/321:38:4523
105509912828,66cyclictest0-21swapper/322:51:5823
105509912827,65cyclictest0-21swapper/323:09:0423
106849912742,67cyclictest0-21swapper/2423:22:3617
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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