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2026-03-30 - 05:39
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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 Mon Mar 30, 2026 00:48:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330891249241,6phc2sys0-21swapper/219:06:5112
3273912470,239ptp4l0-21swapper/119:08:091
15514992075,196cyclictest151rcu_preempt00:32:2522
15514992075,196cyclictest151rcu_preempt00:32:2522
153999917333,126cyclictest0-21swapper/1222:55:174
154989917112,107cyclictest0-21swapper/2723:14:4420
139952171164,6sleep230-21swapper/2319:07:3116
153999917031,105cyclictest0-21swapper/1222:20:224
153999916524,115cyclictest0-21swapper/1223:22:334
153999916524,112cyclictest0-21swapper/1223:48:454
153999916329,81cyclictest0-21swapper/1220:30:134
153999915122,91cyclictest0-21swapper/1222:04:324
153999914959,88cyclictest88-21ksoftirqd/1223:52:144
153999914731,81cyclictest0-21swapper/1223:33:454
15399991450,83cyclictest0-21swapper/1219:10:044
15399991450,83cyclictest0-21swapper/1219:10:034
15514991442,92cyclictest151rcu_preempt22:20:3422
154989914412,83cyclictest0-21swapper/2723:52:4120
155149914353,62cyclictest0-21swapper/2920:27:4822
15514991420,83cyclictest0-21swapper/2922:01:3222
153999914225,69cyclictest0-21swapper/1221:53:354
155149914144,57cyclictest0-21swapper/2923:06:1322
15514991410,87cyclictest0-21swapper/2920:24:0522
153999914131,84cyclictest0-21swapper/1219:22:544
153999914131,84cyclictest0-21swapper/1219:22:534
155149914050,66cyclictest0-21swapper/2923:29:4322
155149914049,55cyclictest0-21swapper/2922:11:0922
155149914042,66cyclictest0-21swapper/2919:50:2322
155149914042,66cyclictest0-21swapper/2919:50:2222
155149914027,70cyclictest0-21swapper/2922:49:5822
15514991400,99cyclictest0-21swapper/2921:15:3422
15514991391,83cyclictest0-21swapper/2921:20:5522
15514991390,85cyclictest0-21swapper/2920:08:0222
155149913854,57cyclictest0-21swapper/2922:18:0622
155149913845,60cyclictest0-21swapper/2900:15:5722
155149913841,64cyclictest0-21swapper/2923:19:0222
155149913838,67cyclictest0-21swapper/2923:57:3122
155149913830,66cyclictest0-21swapper/2921:57:4822
15514991380,81cyclictest0-21swapper/2919:25:1822
15514991380,81cyclictest0-21swapper/2919:25:1722
155149913754,62cyclictest0-21swapper/2920:02:4122
15514991370,85cyclictest0-21swapper/2923:20:3822
15514991370,82cyclictest0-21swapper/2900:02:1922
15514991370,80cyclictest0-21swapper/2922:25:0322
154989913728,68cyclictest0-21swapper/2700:19:5520
155149913653,57cyclictest0-21swapper/2922:42:4222
155149913629,67cyclictest0-21swapper/2922:37:5422
155149913629,62cyclictest0-21swapper/2919:44:4422
155149913629,62cyclictest0-21swapper/2919:44:4422
155149913627,66cyclictest0-21swapper/2923:30:4722
155149913626,66cyclictest0-21swapper/2921:38:0222
15514991360,80cyclictest0-21swapper/2921:41:1422
15514991360,80cyclictest0-21swapper/2900:22:0722
15514991360,79cyclictest0-21swapper/2920:47:1522
15371991360,84cyclictest0-21swapper/500:20:3827
155149913556,61cyclictest0-21swapper/2920:10:0122
155149913548,64cyclictest0-21swapper/2921:53:0022
155149913546,59cyclictest0-21swapper/2922:32:0122
15514991350,80cyclictest0-21swapper/2923:44:4222
15514991350,79cyclictest0-21swapper/2922:50:1122
15399991350,82cyclictest0-21swapper/1221:29:314
155149913429,64cyclictest0-21swapper/2900:36:0022
155149913342,56cyclictest0-21swapper/2919:45:1922
155149913342,56cyclictest0-21swapper/2919:45:1822
155149913336,60cyclictest0-21swapper/2920:55:1622
155149913325,63cyclictest0-21swapper/2922:06:5322
15514991330,78cyclictest0-21swapper/2921:49:4822
15514991330,75cyclictest0-21swapper/2923:45:4522
153999913316,97cyclictest0-21swapper/1200:00:304
153519913325,77cyclictest0-21swapper/020:35:000
155149913230,65cyclictest0-21swapper/2921:05:2722
155149913228,61cyclictest0-21swapper/2923:50:0222
155149913214,70cyclictest0-21swapper/2923:10:2922
15514991320,78cyclictest0-21swapper/2921:11:5022
154989913227,68cyclictest0-21swapper/2723:25:2420
153999913230,58cyclictest0-21swapper/1223:11:534
155149913130,65cyclictest0-21swapper/2923:04:2322
155149913128,60cyclictest0-21swapper/2922:58:1122
154989913135,60cyclictest0-21swapper/2721:21:5720
154989913128,67cyclictest0-21swapper/2723:36:3820
155149913026,65cyclictest0-21swapper/2900:14:2322
155149913023,72cyclictest0-21swapper/2900:29:5122
154989913023,62cyclictest0-21swapper/2719:50:3620
154989913023,62cyclictest0-21swapper/2719:50:3620
153999913043,57cyclictest0-21swapper/1219:58:264
153999913043,57cyclictest0-21swapper/1219:58:264
153619913018,48cyclictest0-21swapper/200:09:5312
155149912932,65cyclictest0-21swapper/2920:31:0022
155149912927,64cyclictest0-21swapper/2921:25:0122
15514991290,71cyclictest0-21swapper/2919:30:2022
15514991290,71cyclictest0-21swapper/2919:30:2022
154989912929,71cyclictest0-21swapper/2720:32:4920
154989912928,66cyclictest0-21swapper/2721:35:1920
154989912925,65cyclictest0-21swapper/2700:35:2520
153769912932,73cyclictest0-21swapper/621:58:2928
153719912916,69cyclictest0-21swapper/521:46:0227
155149912829,65cyclictest0-21swapper/2919:12:4122
155149912829,65cyclictest0-21swapper/2919:12:4122
154989912864,63cyclictest0-21swapper/2723:45:1120
154989912827,64cyclictest0-21swapper/2721:29:2620
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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