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2025-11-23 - 09:11
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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 Sun Nov 23, 2025 00:49:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
315229940449,198cyclictest151rcu_preempt21:51:3927
2482912920,284ptp4l0-21swapper/119:06:371
3160099259115,1cyclictest151rcu_preempt21:34:0210
316579923731,128cyclictest0-21swapper/2523:10:2118
316389918045,102cyclictest0-21swapper/2322:40:5616
316389916645,71cyclictest0-21swapper/2322:54:1716
316579916234,102cyclictest0-21swapper/2523:09:4918
314989916210,118cyclictest151rcu_preempt22:21:021
316579916032,126cyclictest0-21swapper/2522:10:3018
316489916078,50cyclictest0-21swapper/2422:30:2317
316579915931,99cyclictest0-21swapper/2521:22:5618
316579915931,94cyclictest0-21swapper/2523:50:5718
316579915832,73cyclictest0-21swapper/2522:07:5018
316579915730,88cyclictest0-21swapper/2523:55:4718
316579915529,87cyclictest0-21swapper/2522:42:0218
316579915427,84cyclictest0-21swapper/2522:15:1918
316579914719,111cyclictest0-21swapper/2523:16:4618
316579914535,74cyclictest0-21swapper/2523:41:4318
316919914324,114cyclictest0-21swapper/3120:25:1625
316919914125,74cyclictest0-21swapper/3100:21:3025
315489913945,61cyclictest0-21swapper/821:50:3530
31498991390,81cyclictest0-21swapper/122:45:051
315849913828,81cyclictest0-21swapper/1400:28:116
316919913722,87cyclictest0-21swapper/3123:53:2825
316389913620,47cyclictest0-21swapper/2321:37:5216
316919913520,81cyclictest0-21swapper/3123:00:5025
316919913425,61cyclictest0-21swapper/3100:14:0325
315489913444,59cyclictest0-21swapper/822:00:5630
315489913437,63cyclictest0-21swapper/822:11:1930
314989913486,39cyclictest221ksoftirqd/122:06:211
316389913337,95cyclictest0-21swapper/2321:31:5916
315489913344,60cyclictest0-21swapper/823:27:3030
315489913326,64cyclictest0-21swapper/823:40:5330
315489913324,64cyclictest0-21swapper/823:10:2430
316389913248,54cyclictest0-21swapper/2319:49:5616
316389913248,54cyclictest0-21swapper/2319:49:5516
316199913240,91cyclictest143-21ksoftirqd/2123:43:2514
315489913252,64cyclictest0-21swapper/821:32:0430
315489913246,65cyclictest0-21swapper/819:15:2230
315489913246,65cyclictest0-21swapper/819:15:2230
316919913121,73cyclictest0-21swapper/3122:58:1025
315489913152,60cyclictest0-21swapper/820:50:0230
315489913135,73cyclictest64-21ksoftirqd/819:30:1430
315489913135,73cyclictest64-21ksoftirqd/819:30:1430
315489913133,58cyclictest0-21swapper/821:56:1530
315489913129,67cyclictest0-21swapper/822:55:2630
315489913125,60cyclictest0-21swapper/800:05:3230
316919913021,67cyclictest0-21swapper/3123:15:1625
315849913046,54cyclictest0-21swapper/1420:15:266
315849913046,54cyclictest0-21swapper/1420:15:266
315849913029,68cyclictest0-21swapper/1423:20:376
315849913025,63cyclictest0-21swapper/1419:15:036
315849913025,63cyclictest0-21swapper/1419:15:036
315489913046,54cyclictest0-21swapper/821:49:4630
315489913029,69cyclictest0-21swapper/821:40:1430
315489913028,67cyclictest0-21swapper/800:31:0630
315489913028,67cyclictest0-21swapper/800:31:0630
315489913027,61cyclictest0-21swapper/820:35:2630
314989913045,57cyclictest0-21swapper/121:48:111
316579912935,64cyclictest0-21swapper/2521:31:2918
316579912932,63cyclictest0-21swapper/2522:25:4518
31619991290,78cyclictest0-21swapper/2122:25:2414
315849912938,61cyclictest0-21swapper/1423:32:376
315849912929,65cyclictest0-21swapper/1400:14:176
315489912945,58cyclictest0-21swapper/821:00:0130
315489912932,60cyclictest0-21swapper/821:17:1630
315489912931,74cyclictest0-21swapper/823:32:5330
315489912930,69cyclictest0-21swapper/800:03:5330
315489912928,69cyclictest0-21swapper/800:25:1430
314989912953,68cyclictest0-21swapper/122:25:361
314989912928,65cyclictest0-21swapper/122:37:061
314989912927,68cyclictest0-21swapper/100:24:311
316579912833,47cyclictest0-21swapper/2500:19:5018
316389912839,57cyclictest0-21swapper/2321:15:2516
316389912826,64cyclictest0-21swapper/2321:10:0516
315849912829,67cyclictest0-21swapper/1400:10:016
315849912828,70cyclictest0-21swapper/1423:50:476
315849912826,60cyclictest0-21swapper/1421:00:196
315489912830,62cyclictest0-21swapper/823:19:2930
315489912829,69cyclictest0-21swapper/823:00:2930
315489912828,68cyclictest0-21swapper/822:50:4330
315489912828,66cyclictest0-21swapper/819:35:2730
315489912828,66cyclictest0-21swapper/819:35:2730
315489912827,68cyclictest0-21swapper/822:23:3030
315489912827,64cyclictest0-21swapper/822:27:4230
315489912826,64cyclictest0-21swapper/821:26:0830
314989912851,59cyclictest0-21swapper/100:14:051
314989912851,56cyclictest0-21swapper/123:24:551
314989912844,62cyclictest0-21swapper/120:59:171
314989912837,69cyclictest0-21swapper/100:31:141
314989912837,69cyclictest0-21swapper/100:31:131
314989912828,70cyclictest0-21swapper/100:05:471
314989912828,67cyclictest0-21swapper/123:09:081
314989912826,66cyclictest0-21swapper/123:35:041
314989912824,64cyclictest0-21swapper/119:15:551
314989912824,64cyclictest0-21swapper/119:15:541
316389912740,59cyclictest0-21swapper/2322:55:2116
316389912728,66cyclictest0-21swapper/2300:13:5516
316389912726,66cyclictest0-21swapper/2321:20:1316
315849912736,60cyclictest0-21swapper/1420:58:436
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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