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2026-04-14 - 23:54
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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 Tue Apr 14, 2026 12:49:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37042353345,6sleep110-21swapper/1107:05:183
678699311113,1cyclictest151rcu_preempt12:04:4223
678699306112,27cyclictest151rcu_preempt11:40:4023
330891281273,6phc2sys0-21swapper/207:07:1912
6790991872,183cyclictest40-21ksoftirqd/409:50:2226
68109917218,153cyclictest0-21swapper/910:14:4231
68979916960,52cyclictest0-21swapper/3009:33:3924
67779916912,115cyclictest0-21swapper/109:58:001
67779916912,102cyclictest0-21swapper/112:16:401
3273911680,160ptp4l0-21swapper/107:09:461
68109916516,122cyclictest0-21swapper/908:42:1431
68689916141,117cyclictest151rcu_preempt11:15:1915
68109916018,90cyclictest0-21swapper/910:29:0831
67779915812,115cyclictest0-21swapper/111:45:081
67779915713,89cyclictest0-21swapper/110:25:471
68109915118,83cyclictest0-21swapper/909:43:4231
68109915115,112cyclictest0-21swapper/912:11:3231
6794991490,90cyclictest0-21swapper/512:36:4927
67779914830,116cyclictest151rcu_preempt09:14:581
67779914812,92cyclictest0-21swapper/112:20:571
68109914518,78cyclictest0-21swapper/912:28:2031
67819914433,110cyclictest0-21swapper/210:31:0912
68979914326,82cyclictest0-21swapper/3012:05:0924
6794991420,78cyclictest0-21swapper/508:21:2127
6794991420,78cyclictest0-21swapper/508:21:2027
67819914233,65cyclictest0-21swapper/211:24:0512
67779914212,88cyclictest0-21swapper/110:33:481
68109914020,88cyclictest6767-21cyclictest09:22:1931
6777991400,86cyclictest0-21swapper/109:15:461
68689913947,55cyclictest0-21swapper/2208:00:1515
68689913947,55cyclictest0-21swapper/2208:00:1415
67779913952,56cyclictest0-21swapper/110:56:471
6897991380,87cyclictest0-21swapper/3009:16:4724
6897991380,85cyclictest0-21swapper/3011:29:5224
68879913819,73cyclictest0-21swapper/2709:16:4520
68689913851,57cyclictest0-21swapper/2211:25:1815
68689913826,72cyclictest0-21swapper/2210:08:3115
68239913824,66cyclictest0-21swapper/1209:59:364
68239913822,71cyclictest0-21swapper/1209:40:024
68759913765,30cyclictest0-21swapper/2411:05:1517
68689913727,66cyclictest0-21swapper/2209:20:2415
6777991370,84cyclictest0-21swapper/109:36:201
68979913652,55cyclictest0-21swapper/3009:44:3524
68979913637,60cyclictest0-21swapper/3009:59:0124
68689913629,73cyclictest0-21swapper/2211:56:5915
68689913628,63cyclictest0-21swapper/2211:05:0915
68689913627,66cyclictest0-21swapper/2208:19:2915
68689913627,66cyclictest0-21swapper/2208:19:2915
6777991360,82cyclictest0-21swapper/108:10:231
6777991360,82cyclictest0-21swapper/108:10:221
68979913551,58cyclictest0-21swapper/3010:35:5324
68979913551,55cyclictest0-21swapper/3010:07:0224
68979913549,57cyclictest0-21swapper/3010:58:5224
68979913530,73cyclictest0-21swapper/3010:48:4424
68689913530,70cyclictest0-21swapper/2209:30:3315
68689913528,70cyclictest0-21swapper/2210:43:4615
68239913552,58cyclictest0-21swapper/1211:54:154
67949913529,68cyclictest0-21swapper/510:29:2327
68979913444,60cyclictest0-21swapper/3009:23:1224
68979913428,71cyclictest0-21swapper/3008:55:1124
68979913427,69cyclictest0-21swapper/3011:04:1324
68689913430,63cyclictest0-21swapper/2207:45:1815
68689913430,63cyclictest0-21swapper/2207:45:1715
68689913426,67cyclictest0-21swapper/2212:31:1315
68239913449,52cyclictest0-21swapper/1210:51:574
68239913446,58cyclictest0-21swapper/1211:37:554
68239913428,68cyclictest0-21swapper/1211:21:544
68239913412,72cyclictest0-21swapper/1209:36:384
67909913431,68cyclictest0-21swapper/412:02:0626
67909913424,68cyclictest0-21swapper/410:01:5226
67779913453,59cyclictest0-21swapper/111:26:121
68689913336,61cyclictest0-21swapper/2211:25:0115
68689913334,67cyclictest0-21swapper/2207:41:0115
68689913334,67cyclictest0-21swapper/2207:41:0015
68689913330,75cyclictest0-21swapper/2212:01:4915
68689913329,68cyclictest0-21swapper/2210:55:0015
68239913349,62cyclictest0-21swapper/1211:29:204
68239913341,62cyclictest0-21swapper/1208:30:254
68239913338,63cyclictest0-21swapper/1209:11:344
68239913329,67cyclictest0-21swapper/1211:05:194
68239913325,66cyclictest0-21swapper/1210:40:134
67819913323,81cyclictest0-21swapper/209:38:1412
68979913255,60cyclictest0-21swapper/3012:00:2024
68979913241,64cyclictest0-21swapper/3012:34:5024
68979913230,67cyclictest0-21swapper/3008:04:0724
68979913230,67cyclictest0-21swapper/3008:04:0724
68689913262,67cyclictest0-21swapper/2207:25:3115
68689913262,67cyclictest0-21swapper/2207:25:3115
68689913231,76cyclictest0-21swapper/2207:52:4615
68689913231,76cyclictest0-21swapper/2207:52:4615
68239913250,61cyclictest0-21swapper/1210:35:234
68239913248,56cyclictest0-21swapper/1209:25:224
68239913227,66cyclictest0-21swapper/1207:35:184
68239913227,66cyclictest0-21swapper/1207:35:184
68239913227,63cyclictest0-21swapper/1212:35:234
68239913226,60cyclictest0-21swapper/1210:25:474
68239913225,64cyclictest0-21swapper/1209:32:194
68239913224,66cyclictest0-21swapper/1207:13:204
68239913224,66cyclictest0-21swapper/1207:13:204
67819913232,97cyclictest0-21swapper/209:53:4412
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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