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2025-12-18 - 21:04
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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 Thu Dec 18, 2025 12:47:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330891283274,6phc2sys0-21swapper/207:05:1412
293409916982,31cyclictest11854-21latency_hist09:05:004
294399916631,134cyclictest0-21swapper/2709:50:2420
294669915831,87cyclictest0-21swapper/3007:10:1424
294669915831,87cyclictest0-21swapper/3007:10:1324
279132156149,6sleep70-21swapper/707:06:3729
29398991430,84cyclictest0-21swapper/2207:50:2415
29398991430,84cyclictest0-21swapper/2207:50:2415
293629914230,68cyclictest0-21swapper/1712:22:169
293629914052,60cyclictest0-21swapper/1710:33:479
293449914016,118cyclictest151rcu_preempt07:48:475
293449914016,118cyclictest151rcu_preempt07:48:475
29344991380,88cyclictest0-21swapper/1311:38:555
294669913727,64cyclictest0-21swapper/3007:20:0424
294669913727,64cyclictest0-21swapper/3007:20:0424
293629913752,66cyclictest0-21swapper/1711:55:239
293629913743,61cyclictest0-21swapper/1708:46:579
294669913651,53cyclictest0-21swapper/3008:17:4724
294669913651,53cyclictest0-21swapper/3008:17:4624
29439991360,82cyclictest0-21swapper/2708:12:4420
29439991360,82cyclictest0-21swapper/2708:12:4320
293629913630,62cyclictest0-21swapper/1709:12:049
293629913628,65cyclictest0-21swapper/1709:40:239
293449913639,65cyclictest0-21swapper/1308:37:505
293449913635,48cyclictest0-21swapper/1308:19:065
293449913635,48cyclictest0-21swapper/1308:19:055
29324991360,84cyclictest0-21swapper/809:35:1430
294669913546,59cyclictest0-21swapper/3008:41:1624
294669913529,72cyclictest0-21swapper/3011:30:2324
293629913523,65cyclictest0-21swapper/1708:00:289
293629913523,65cyclictest0-21swapper/1708:00:279
294669913428,73cyclictest0-21swapper/3010:58:3624
294669913428,62cyclictest0-21swapper/3009:55:0024
294669913427,70cyclictest0-21swapper/3011:40:1524
293989913463,41cyclictest0-21swapper/2211:10:4415
294669913353,64cyclictest0-21swapper/3010:11:2024
294669913325,65cyclictest0-21swapper/3010:45:1324
293629913328,63cyclictest0-21swapper/1711:40:359
293409913342,63cyclictest0-21swapper/1207:16:224
293409913342,63cyclictest0-21swapper/1207:16:214
29324991330,78cyclictest0-21swapper/807:15:1430
29324991330,78cyclictest0-21swapper/807:15:1330
294669913226,63cyclictest0-21swapper/3009:10:0724
294669913225,65cyclictest0-21swapper/3010:43:5524
293629913227,62cyclictest0-21swapper/1712:05:429
294669913139,57cyclictest0-21swapper/3011:01:4724
294669913129,65cyclictest0-21swapper/3010:00:2124
293989913138,59cyclictest0-21swapper/2208:50:1315
293839913132,98cyclictest0-21swapper/2010:10:1613
293839913130,100cyclictest0-21swapper/2010:25:1213
293629913130,60cyclictest0-21swapper/1711:25:179
29352991310,80cyclictest0-21swapper/1507:45:117
29352991310,80cyclictest0-21swapper/1507:45:107
294669913049,65cyclictest0-21swapper/3008:52:4824
294669913029,63cyclictest0-21swapper/3007:34:1624
294669913029,63cyclictest0-21swapper/3007:34:1624
294669913028,71cyclictest0-21swapper/3010:05:1024
293409913040,61cyclictest0-21swapper/1208:25:344
293249913020,88cyclictest9111-21latency_hist12:30:0030
294669912949,67cyclictest0-21swapper/3007:37:1024
294669912949,67cyclictest0-21swapper/3007:37:1024
294669912945,62cyclictest0-21swapper/3010:54:3624
294669912938,63cyclictest0-21swapper/3007:15:1624
294669912938,63cyclictest0-21swapper/3007:15:1524
294669912925,65cyclictest0-21swapper/3008:00:4124
294669912925,65cyclictest0-21swapper/3008:00:4024
294399912926,65cyclictest0-21swapper/2709:18:2620
293989912926,66cyclictest0-21swapper/2212:05:1415
293839912935,91cyclictest0-21swapper/2008:05:2313
293839912935,91cyclictest0-21swapper/2008:05:2213
294669912839,56cyclictest0-21swapper/3007:50:0024
294669912839,56cyclictest0-21swapper/3007:50:0024
294669912830,78cyclictest0-21swapper/3008:10:1824
294669912830,78cyclictest0-21swapper/3008:10:1724
294669912829,72cyclictest0-21swapper/3011:25:1824
294669912828,65cyclictest0-21swapper/3007:40:2324
294669912828,65cyclictest0-21swapper/3007:40:2224
294669912826,68cyclictest0-21swapper/3011:50:2524
294669912826,66cyclictest0-21swapper/3009:45:2424
293989912855,62cyclictest0-21swapper/2209:10:3115
293989912829,64cyclictest0-21swapper/2209:00:2315
293629912827,59cyclictest0-21swapper/1707:43:539
293629912827,59cyclictest0-21swapper/1707:43:529
293629912826,56cyclictest0-21swapper/1708:55:299
293409912850,61cyclictest0-21swapper/1212:33:464
293989912728,65cyclictest0-21swapper/2209:30:1915
293989912725,66cyclictest0-21swapper/2207:55:1315
293989912725,66cyclictest0-21swapper/2207:55:1215
293409912725,66cyclictest0-21swapper/1211:13:354
293409912725,66cyclictest0-21swapper/1207:33:124
293409912725,66cyclictest0-21swapper/1207:33:124
293409912719,107cyclictest11991-21cat09:55:134
294669912630,71cyclictest0-21swapper/3007:57:1224
294669912630,71cyclictest0-21swapper/3007:57:1124
294669912629,73cyclictest0-21swapper/3010:28:0924
294399912624,70cyclictest0-21swapper/2707:35:1320
294399912624,70cyclictest0-21swapper/2707:35:1320
293989912628,63cyclictest0-21swapper/2208:06:2615
293989912628,63cyclictest0-21swapper/2208:06:2515
293989912624,60cyclictest0-21swapper/2207:11:5015
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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