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2026-08-22 - 22:52
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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 Sat Aug 22, 2026 12:48:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330891273265,6phc2sys0-21swapper/207:09:2412
3273912480,239ptp4l0-21swapper/107:07:481
223842235228,6sleep40-21swapper/407:06:5426
2385399225152,72cyclictest151rcu_preempt10:20:4231
23814992207,149cyclictest0-21swapper/009:55:120
23853991963,1cyclictest151rcu_preempt11:46:4531
238709916225,88cyclictest0-21swapper/1307:25:175
238709916225,88cyclictest0-21swapper/1307:25:175
238709916124,111cyclictest0-21swapper/1309:10:015
23814991617,134cyclictest0-21swapper/007:20:120
23814991617,134cyclictest0-21swapper/007:20:120
23814991607,121cyclictest0-21swapper/011:16:270
23814991607,116cyclictest0-21swapper/012:35:180
23814991607,116cyclictest0-21swapper/012:35:180
23814991597,152cyclictest0-21swapper/010:38:130
238709915719,112cyclictest0-21swapper/1310:32:495
23814991577,97cyclictest0-21swapper/011:21:430
23814991547,92cyclictest0-21swapper/009:37:010
23814991537,112cyclictest0-21swapper/008:40:220
238779915066,43cyclictest0-21swapper/1510:23:287
238709914922,97cyclictest0-21swapper/1311:08:525
238539914725,82cyclictest0-21swapper/910:50:2331
238709914625,72cyclictest0-21swapper/1311:10:155
238709914622,83cyclictest0-21swapper/1310:41:555
239139914322,40cyclictest0-21swapper/2407:45:1517
239139914322,40cyclictest0-21swapper/2407:45:1417
23814991437,85cyclictest0-21swapper/009:14:040
239139914225,33cyclictest0-21swapper/2410:20:1617
23814991417,116cyclictest0-21swapper/008:30:140
239139914055,79cyclictest0-21swapper/2409:25:2517
239369913958,61cyclictest0-21swapper/3010:32:1524
23913991390,80cyclictest12219-21switchtime11:40:2317
23814991397,97cyclictest0-21swapper/012:21:070
23814991397,92cyclictest0-21swapper/009:40:160
239369913850,60cyclictest0-21swapper/3010:36:0124
239139913855,62cyclictest0-21swapper/2410:30:2317
239139913749,54cyclictest0-21swapper/2412:34:5417
23814991377,81cyclictest0-21swapper/009:33:150
23877991360,81cyclictest0-21swapper/1507:21:477
23877991360,81cyclictest0-21swapper/1507:21:477
23814991367,85cyclictest0-21swapper/010:52:080
238779913540,58cyclictest0-21swapper/1510:37:227
23814991357,97cyclictest0-21swapper/008:25:260
239139913443,56cyclictest0-21swapper/2411:22:2617
239369913343,58cyclictest0-21swapper/3011:36:2324
239369913343,57cyclictest0-21swapper/3008:20:1624
239369913340,61cyclictest0-21swapper/3011:51:2124
239369913338,63cyclictest0-21swapper/3011:15:1824
239369913325,64cyclictest0-21swapper/3011:42:1724
239139913350,61cyclictest0-21swapper/2411:45:1117
239139913329,70cyclictest0-21swapper/2411:04:3817
239139913329,69cyclictest0-21swapper/2407:20:0717
239139913329,69cyclictest0-21swapper/2407:20:0717
239369913253,60cyclictest0-21swapper/3008:59:1624
239369913244,59cyclictest0-21swapper/3008:05:1824
239369913227,70cyclictest0-21swapper/3010:13:0224
239139913250,71cyclictest0-21swapper/2410:35:2117
239139913229,67cyclictest0-21swapper/2411:15:1517
239139913228,70cyclictest0-21swapper/2410:45:2017
239369913130,71cyclictest0-21swapper/3008:36:1824
239369913129,66cyclictest0-21swapper/3007:36:5824
239369913129,66cyclictest0-21swapper/3007:36:5824
239369913128,73cyclictest0-21swapper/3007:59:5824
239369913128,73cyclictest0-21swapper/3007:59:5824
239369913127,69cyclictest0-21swapper/3010:00:1424
239369913127,68cyclictest0-21swapper/3009:55:2324
239139913128,68cyclictest0-21swapper/2409:50:1817
239139913128,67cyclictest0-21swapper/2410:40:1217
239139913126,68cyclictest0-21swapper/2409:12:5217
239369913050,62cyclictest0-21swapper/3009:35:0424
239369913045,63cyclictest0-21swapper/3008:19:4424
239369913030,71cyclictest0-21swapper/3009:52:4324
239369913029,70cyclictest0-21swapper/3012:03:0724
239369913029,70cyclictest0-21swapper/3011:31:0324
239369913028,69cyclictest0-21swapper/3008:45:2224
239369913028,68cyclictest0-21swapper/3012:06:2024
239369913028,67cyclictest0-21swapper/3010:40:1624
239369913027,70cyclictest0-21swapper/3009:12:0524
239369913027,63cyclictest0-21swapper/3012:23:5724
239369913026,70cyclictest0-21swapper/3010:57:5524
239139913033,79cyclictest0-21swapper/2412:10:2117
239369912942,58cyclictest0-21swapper/3011:45:2924
239369912940,61cyclictest0-21swapper/3009:30:1624
239369912928,68cyclictest0-21swapper/3010:23:1024
239369912927,68cyclictest0-21swapper/3008:40:0224
239369912927,61cyclictest0-21swapper/3011:01:0824
239369912926,66cyclictest0-21swapper/3009:25:2724
239369912923,68cyclictest0-21swapper/3009:05:4124
239139912941,66cyclictest0-21swapper/2409:35:1917
239139912931,73cyclictest0-21swapper/2412:05:1417
239139912931,70cyclictest0-21swapper/2410:55:1417
239139912929,73cyclictest0-21swapper/2411:51:3617
239139912929,68cyclictest0-21swapper/2412:01:0917
239139912929,68cyclictest0-21swapper/2411:55:2117
239139912927,68cyclictest0-21swapper/2409:00:1817
239139912926,68cyclictest0-21swapper/2408:50:2517
238779912952,66cyclictest0-21swapper/1509:36:257
238779912940,59cyclictest0-21swapper/1509:00:197
238779912929,65cyclictest0-21swapper/1511:07:507
238779912926,63cyclictest0-21swapper/1510:11:107
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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