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2025-12-03 - 05:01
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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 Wed Dec 03, 2025 00:49:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482913060,298ptp4l0-21swapper/119:06:471
29930991983,1cyclictest151rcu_preempt00:18:5313
299489917030,103cyclictest0-21swapper/2321:45:2316
299489917030,103cyclictest0-21swapper/2321:45:2216
238942168159,6sleep290-21swapper/2919:05:1122
299309916624,100cyclictest0-21swapper/2022:00:1913
299309916624,100cyclictest0-21swapper/2022:00:1913
299489916325,117cyclictest0-21swapper/2319:35:1416
29903991491,92cyclictest0-21swapper/1400:06:336
299039914860,63cyclictest0-21swapper/1421:50:166
299039914860,63cyclictest0-21swapper/1421:50:166
299789914430,81cyclictest0-21swapper/2723:23:2920
298829914456,61cyclictest0-21swapper/923:23:4231
299789914331,58cyclictest0-21swapper/2722:25:1420
299789914331,58cyclictest0-21swapper/2722:25:1320
299789914328,33cyclictest0-21swapper/2719:50:1620
29911991430,84cyclictest0-21swapper/1622:10:378
29911991430,84cyclictest0-21swapper/1622:10:378
298829914348,59cyclictest0-21swapper/900:23:0131
298829914227,58cyclictest0-21swapper/900:15:0131
29847991420,83cyclictest0-21swapper/119:45:021
29993991390,86cyclictest0-21swapper/2921:39:0522
29993991390,86cyclictest0-21swapper/2921:39:0522
299789913925,80cyclictest0-21swapper/2723:55:0020
299119913919,97cyclictest0-21swapper/1600:20:498
298829913954,62cyclictest0-21swapper/923:40:4831
298829913952,65cyclictest0-21swapper/923:27:2831
298829913951,62cyclictest0-21swapper/923:49:2131
299409913834,52cyclictest0-21swapper/2223:26:3515
29911991380,85cyclictest0-21swapper/1619:45:188
298829913858,62cyclictest0-21swapper/900:35:1931
298829913830,69cyclictest0-21swapper/921:54:2831
298829913830,69cyclictest0-21swapper/921:54:2831
29847991380,82cyclictest0-21swapper/100:04:431
299409913732,70cyclictest0-21swapper/2219:55:1715
298829913754,63cyclictest0-21swapper/923:53:3931
29847991360,85cyclictest0-21swapper/121:30:491
29847991360,85cyclictest0-21swapper/121:30:491
299409913531,68cyclictest0-21swapper/2223:11:0615
299309913591,43cyclictest137-21ksoftirqd/2023:49:5213
298829913556,67cyclictest0-21swapper/921:13:2031
298829913532,61cyclictest0-21swapper/921:35:4631
298829913532,61cyclictest0-21swapper/921:35:4531
298579913531,66cyclictest0-21swapper/300:39:2923
298829913450,53cyclictest0-21swapper/900:17:2731
298829913431,66cyclictest0-21swapper/921:56:3731
298829913431,66cyclictest0-21swapper/921:56:3631
299409913329,65cyclictest0-21swapper/2223:22:5115
298829913355,66cyclictest0-21swapper/922:04:3731
298829913355,66cyclictest0-21swapper/922:04:3731
298829913342,56cyclictest0-21swapper/921:34:4131
298829913342,56cyclictest0-21swapper/921:34:4131
298829913339,58cyclictest0-21swapper/923:59:3231
298829913329,61cyclictest0-21swapper/922:50:0231
29867991331,79cyclictest0-21swapper/521:57:0427
29867991331,79cyclictest0-21swapper/521:57:0427
298829913232,65cyclictest0-21swapper/922:16:5431
298829913232,65cyclictest0-21swapper/922:16:5431
298829913227,62cyclictest0-21swapper/923:37:0431
299789913126,72cyclictest0-21swapper/2720:30:3520
299409913131,47cyclictest0-21swapper/2221:22:3815
299409913131,47cyclictest0-21swapper/2221:22:3715
299409913129,68cyclictest0-21swapper/2220:30:1515
298829913134,67cyclictest0-21swapper/920:24:4131
298829913127,63cyclictest0-21swapper/923:33:5231
298829913127,63cyclictest0-21swapper/900:25:4231
298579913127,68cyclictest0-21swapper/300:30:2423
299409913028,68cyclictest0-21swapper/2220:25:2615
299409913024,61cyclictest0-21swapper/2221:58:5715
299409913024,61cyclictest0-21swapper/2221:58:5715
299309913041,89cyclictest137-21ksoftirqd/2000:37:4213
29930991300,79cyclictest0-21swapper/2022:52:1013
298829913029,61cyclictest0-21swapper/919:12:3531
298479913026,104cyclictest0-21swapper/123:26:511
299409912929,67cyclictest0-21swapper/2219:25:3615
299409912928,73cyclictest0-21swapper/2223:47:5815
299409912928,67cyclictest0-21swapper/2222:42:3015
299409912928,67cyclictest0-21swapper/2222:42:2915
299409912927,67cyclictest0-21swapper/2200:39:1615
299309912932,89cyclictest0-21swapper/2019:15:1413
298829912931,65cyclictest0-21swapper/923:03:5731
298829912928,60cyclictest0-21swapper/923:09:1731
298579912925,68cyclictest0-21swapper/322:07:2623
298579912925,68cyclictest0-21swapper/322:07:2523
299409912847,61cyclictest0-21swapper/2223:08:5815
299409912830,72cyclictest0-21swapper/2219:47:3015
299409912829,68cyclictest0-21swapper/2200:22:1115
299409912828,67cyclictest0-21swapper/2221:08:4215
299409912828,67cyclictest0-21swapper/2221:08:4215
299409912827,70cyclictest0-21swapper/2222:21:2415
299409912827,68cyclictest0-21swapper/2222:35:1815
299409912827,67cyclictest0-21swapper/2222:57:2815
299409912827,67cyclictest0-21swapper/2222:32:0515
299409912827,67cyclictest0-21swapper/2200:25:5515
299409912826,66cyclictest0-21swapper/2221:38:4015
299409912826,66cyclictest0-21swapper/2221:38:3915
299409912825,63cyclictest0-21swapper/2222:47:0315
299119912846,56cyclictest0-21swapper/1600:08:148
29903991280,78cyclictest0-21swapper/1421:26:456
29903991280,78cyclictest0-21swapper/1421:26:456
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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