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2025-12-11 - 13:22
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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 11, 2025 00:49:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482911930,185ptp4l0-21swapper/119:09:141
189729917929,122cyclictest0-21swapper/3122:58:0925
189139914946,69cyclictest0-21swapper/2023:47:3013
189139914838,73cyclictest0-21swapper/2022:46:0113
189729914726,78cyclictest0-21swapper/3122:53:1825
18855991450,85cyclictest0-21swapper/723:45:1929
18855991450,81cyclictest0-21swapper/719:30:2429
18855991450,81cyclictest0-21swapper/719:30:2429
18855991440,85cyclictest0-21swapper/721:30:0729
189649914329,96cyclictest0-21swapper/3021:00:1924
18855991430,82cyclictest0-21swapper/723:35:0929
189729914253,57cyclictest0-21swapper/3122:05:1525
188939914289,51cyclictest112-21ksoftirqd/1621:57:528
18855991420,85cyclictest0-21swapper/721:05:0829
18855991420,81cyclictest0-21swapper/723:15:2429
189729914150,57cyclictest0-21swapper/3100:16:4225
189729914147,61cyclictest0-21swapper/3122:04:4225
189729914135,65cyclictest0-21swapper/3121:55:2125
189729914130,67cyclictest0-21swapper/3121:51:2125
189649914130,82cyclictest0-21swapper/3021:54:5024
188649914150,57cyclictest0-21swapper/921:29:0531
188649914129,72cyclictest0-21swapper/923:13:4831
18855991410,84cyclictest0-21swapper/721:36:0729
18855991410,83cyclictest0-21swapper/720:55:2329
189729914027,64cyclictest0-21swapper/3121:39:3625
18852991400,86cyclictest0-21swapper/600:22:4228
189729913931,72cyclictest0-21swapper/3100:13:3025
18972991390,80cyclictest0-21swapper/3123:04:3325
188649913959,63cyclictest0-21swapper/920:25:2931
188649913959,63cyclictest0-21swapper/920:25:2831
188649913958,61cyclictest0-21swapper/921:50:5831
188649913939,62cyclictest0-21swapper/920:50:2331
188649913930,68cyclictest0-21swapper/900:27:0231
189729913832,68cyclictest0-21swapper/3122:47:2725
18958991380,88cyclictest0-21swapper/2921:17:3922
18918991380,83cyclictest0-21swapper/2121:10:0114
188649913856,58cyclictest0-21swapper/922:17:4231
188649913851,65cyclictest0-21swapper/900:08:2031
188649913851,65cyclictest0-21swapper/900:08:1931
18852991380,84cyclictest0-21swapper/621:38:3828
189729913749,58cyclictest0-21swapper/3121:43:1925
189729913745,57cyclictest0-21swapper/3121:34:1425
189139913727,70cyclictest0-21swapper/2021:15:5513
1891399137136,0cyclictest137-21ksoftirqd/2021:48:1713
188649913752,63cyclictest0-21swapper/921:30:0831
188649913752,58cyclictest0-21swapper/922:39:0431
188649913728,64cyclictest0-21swapper/923:19:0931
18855991370,81cyclictest0-21swapper/722:08:3429
18855991370,80cyclictest0-21swapper/721:47:1229
18855991370,77cyclictest0-21swapper/723:31:2429
188529913766,70cyclictest21167-21sed00:20:0128
189729913643,58cyclictest0-21swapper/3120:07:0825
189729913643,58cyclictest0-21swapper/3120:07:0825
18972991360,80cyclictest0-21swapper/3120:40:1625
18972991360,79cyclictest0-21swapper/3119:30:1725
18972991360,79cyclictest0-21swapper/3119:30:1625
189649913641,94cyclictest0-21swapper/3022:53:5224
188649913645,61cyclictest0-21swapper/922:01:4031
188649913631,62cyclictest0-21swapper/920:06:2131
188649913631,62cyclictest0-21swapper/920:06:2131
188649913631,60cyclictest0-21swapper/923:31:2731
188559913628,66cyclictest0-21swapper/722:53:5829
188559913615,69cyclictest0-21swapper/700:35:1729
18855991360,80cyclictest0-21swapper/723:25:3229
18855991360,80cyclictest0-21swapper/721:50:2429
18855991360,78cyclictest0-21swapper/719:40:0229
18855991360,78cyclictest0-21swapper/719:40:0129
189729913530,65cyclictest0-21swapper/3123:28:0525
188649913551,62cyclictest0-21swapper/900:31:1931
188649913543,64cyclictest0-21swapper/923:50:0931
188649913531,67cyclictest0-21swapper/922:55:2631
188649913531,64cyclictest0-21swapper/919:40:0431
188649913531,64cyclictest0-21swapper/919:40:0331
188649913530,63cyclictest0-21swapper/920:45:1631
188649913528,63cyclictest0-21swapper/920:35:0531
188559913541,62cyclictest0-21swapper/721:25:1729
18855991350,80cyclictest0-21swapper/723:05:1429
189729913429,65cyclictest0-21swapper/3121:13:5725
189729913427,68cyclictest0-21swapper/3123:37:0725
188649913432,66cyclictest0-21swapper/922:20:5531
188649913432,64cyclictest0-21swapper/921:58:2731
188649913430,65cyclictest0-21swapper/900:00:2131
188649913429,70cyclictest0-21swapper/923:07:2431
188649913427,63cyclictest0-21swapper/923:04:4331
18855991340,79cyclictest0-21swapper/719:45:2329
18855991340,79cyclictest0-21swapper/719:45:2229
18852991340,95cyclictest52-21ksoftirqd/622:44:5428
189729913331,61cyclictest0-21swapper/3123:32:5325
189729913328,64cyclictest0-21swapper/3122:27:4125
188649913357,67cyclictest0-21swapper/923:40:2131
188649913352,66cyclictest0-21swapper/922:50:2231
189729913247,52cyclictest0-21swapper/3123:40:5425
189729913228,66cyclictest0-21swapper/3122:12:1125
189729913227,62cyclictest0-21swapper/3100:07:0625
189729913227,62cyclictest0-21swapper/3100:07:0525
189649913256,57cyclictest0-21swapper/3022:37:1624
189139913221,88cyclictest0-21swapper/2000:27:4113
188649913230,69cyclictest0-21swapper/923:40:0031
188649913230,64cyclictest0-21swapper/922:26:1531
188649913230,63cyclictest0-21swapper/923:21:1731
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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