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2026-03-31 - 13:36
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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 Mar 31, 2026 00:49:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913130,305ptp4l0-21swapper/119:07:161
308012209202,6sleep280-21swapper/2819:09:1121
3221399189137,36cyclictest0-21swapper/2622:22:1919
321859918222,147cyclictest0-21swapper/2219:40:1915
321859918222,147cyclictest0-21swapper/2219:40:1815
321859917822,52cyclictest0-21swapper/2219:46:1215
321859917822,52cyclictest0-21swapper/2219:46:1215
32185991709,130cyclictest151rcu_preempt23:05:3215
296022168160,6sleep240-21swapper/2419:05:2317
32193991660,164cyclictest0-21swapper/2322:48:2716
32193991660,163cyclictest0-21swapper/2323:43:3016
322009914619,41cyclictest0-21swapper/2423:33:0917
322009914418,72cyclictest0-21swapper/2423:44:5617
32155991441,84cyclictest0-21swapper/1821:00:2510
32033991440,85cyclictest0-21swapper/023:21:290
322519914143,76cyclictest0-21swapper/3119:15:2125
322519914143,76cyclictest0-21swapper/3119:15:2125
321859914122,69cyclictest0-21swapper/2223:22:3815
322519913941,97cyclictest0-21swapper/3122:20:1525
320999913925,86cyclictest0-21swapper/1022:01:432
321859913754,61cyclictest0-21swapper/2223:12:3015
32200991360,79cyclictest0-21swapper/2419:46:3817
32200991360,79cyclictest0-21swapper/2419:46:3717
32200991350,82cyclictest0-21swapper/2400:05:1517
321859913529,70cyclictest0-21swapper/2222:01:5015
321859913450,57cyclictest0-21swapper/2219:31:1415
321859913450,57cyclictest0-21swapper/2219:31:1415
321859913445,56cyclictest0-21swapper/2222:44:1015
321859913430,70cyclictest0-21swapper/2223:38:4115
321859913429,74cyclictest0-21swapper/2222:31:3415
321859913429,72cyclictest0-21swapper/2221:58:3815
321859913427,70cyclictest0-21swapper/2222:48:5215
321859913422,68cyclictest0-21swapper/2223:52:2115
320999913422,95cyclictest0-21swapper/1000:21:462
320999913422,95cyclictest0-21swapper/1000:21:462
320339913444,59cyclictest0-21swapper/021:18:520
32200991330,79cyclictest0-21swapper/2422:10:1917
321859913344,62cyclictest0-21swapper/2223:02:2015
321859913328,70cyclictest0-21swapper/2222:16:0515
321789913325,69cyclictest0-21swapper/2122:00:2314
32178991331,105cyclictest0-21swapper/2121:49:3214
321859913259,71cyclictest0-21swapper/2222:56:5915
321859913245,56cyclictest0-21swapper/2200:28:2315
321859913245,56cyclictest0-21swapper/2200:28:2315
321859913230,61cyclictest0-21swapper/2223:47:1315
321859913228,58cyclictest0-21swapper/2200:10:1315
321859913228,58cyclictest0-21swapper/2200:10:1315
320339913249,52cyclictest0-21swapper/021:49:520
320339913228,67cyclictest0-21swapper/000:26:290
320339913228,67cyclictest0-21swapper/000:26:290
322009913146,56cyclictest0-21swapper/2400:04:4217
321859913146,68cyclictest0-21swapper/2221:10:3815
321859913132,76cyclictest0-21swapper/2223:40:1815
321859913130,72cyclictest0-21swapper/2223:30:4015
321859913130,72cyclictest0-21swapper/2221:33:3715
321859913031,75cyclictest0-21swapper/2200:05:5615
321859913030,66cyclictest0-21swapper/2221:15:2615
321859913026,62cyclictest0-21swapper/2222:13:4115
321859913021,85cyclictest0-21swapper/2219:10:2415
321859913021,85cyclictest0-21swapper/2219:10:2415
320339913039,60cyclictest0-21swapper/000:30:300
320339913039,60cyclictest0-21swapper/000:30:300
320339913027,67cyclictest0-21swapper/022:18:450
320339913026,36cyclictest0-21swapper/023:25:170
322519912930,98cyclictest0-21swapper/3122:05:1625
321859912929,65cyclictest0-21swapper/2200:31:3615
321859912929,65cyclictest0-21swapper/2200:31:3515
321859912926,69cyclictest0-21swapper/2220:10:1515
321859912926,69cyclictest0-21swapper/2220:10:1515
321859912925,68cyclictest0-21swapper/2222:09:4015
321859912925,63cyclictest0-21swapper/2223:17:5015
320999912944,55cyclictest0-21swapper/1000:05:442
320999912925,62cyclictest0-21swapper/1022:40:452
32033991299,67cyclictest0-21swapper/022:37:430
320339912952,61cyclictest0-21swapper/020:00:180
320339912952,61cyclictest0-21swapper/020:00:170
320339912950,54cyclictest0-21swapper/023:44:020
320339912944,55cyclictest0-21swapper/021:31:250
320339912943,56cyclictest0-21swapper/022:45:120
320339912929,68cyclictest0-21swapper/023:39:430
320339912928,64cyclictest0-21swapper/023:15:420
322009912827,63cyclictest0-21swapper/2421:35:1817
321859912829,68cyclictest0-21swapper/2220:05:2515
321859912829,68cyclictest0-21swapper/2220:05:2515
321859912828,69cyclictest0-21swapper/2220:20:2415
321859912828,69cyclictest0-21swapper/2220:20:2315
321859912828,65cyclictest0-21swapper/2221:35:1315
321859912827,66cyclictest0-21swapper/2221:53:4115
320999912839,66cyclictest0-21swapper/1023:55:022
320339912826,67cyclictest0-21swapper/019:42:260
320339912826,67cyclictest0-21swapper/019:42:250
320339912824,66cyclictest0-21swapper/021:42:110
322009912750,57cyclictest0-21swapper/2422:59:1417
321859912734,67cyclictest0-21swapper/2220:18:4215
321859912734,67cyclictest0-21swapper/2220:18:4115
321859912731,66cyclictest0-21swapper/2222:39:5315
321859912729,71cyclictest0-21swapper/2222:52:2815
321859912729,66cyclictest0-21swapper/2222:27:3515
321859912728,66cyclictest0-21swapper/2223:29:0415
321149912744,52cyclictest0-21swapper/1220:52:224
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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