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2026-05-22 - 22:54
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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 Fri May 22, 2026 12:49:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913190,311ptp4l0-21swapper/107:08:501
123129923719,159cyclictest0-21swapper/2307:30:1516
330891185177,6phc2sys0-21swapper/207:05:3912
1224999175173,1cyclictest0-21swapper/1210:45:294
122369916932,136cyclictest0-21swapper/907:40:1131
122369916345,117cyclictest0-21swapper/911:52:5831
122369916328,109cyclictest0-21swapper/911:35:2031
122369916226,103cyclictest0-21swapper/909:55:2331
122369916226,103cyclictest0-21swapper/909:55:2231
122089915233,74cyclictest0-21swapper/212:19:0212
123129915018,90cyclictest0-21swapper/2310:20:1216
123129915018,90cyclictest0-21swapper/2310:20:1216
95852148138,7sleep180-21swapper/1807:05:2110
12353991440,84cyclictest0-21swapper/2907:58:0922
122089914431,60cyclictest0-21swapper/209:25:2012
122089914431,60cyclictest0-21swapper/209:25:2012
123539914352,56cyclictest0-21swapper/2908:10:2722
123129914319,81cyclictest0-21swapper/2311:08:1816
12244991430,84cyclictest0-21swapper/1110:00:143
122499914230,56cyclictest0-21swapper/1207:15:434
122449914224,79cyclictest0-21swapper/1111:25:133
123539914153,59cyclictest0-21swapper/2910:13:5422
123539914153,59cyclictest0-21swapper/2910:13:5422
122699914117,93cyclictest0-21swapper/1612:08:088
12236991410,82cyclictest0-21swapper/910:20:0531
12236991410,82cyclictest0-21swapper/910:20:0431
123539914055,58cyclictest0-21swapper/2907:20:1322
123539914028,70cyclictest0-21swapper/2909:30:5422
123539914028,70cyclictest0-21swapper/2909:30:5422
12353991400,85cyclictest0-21swapper/2910:47:3322
12244991400,83cyclictest0-21swapper/1112:07:263
122369914086,53cyclictest70-21ksoftirqd/911:08:0431
12236991400,83cyclictest0-21swapper/909:22:4731
12236991400,83cyclictest0-21swapper/909:22:4731
123539913953,57cyclictest0-21swapper/2909:35:5722
123539913953,57cyclictest0-21swapper/2909:35:5622
123539913948,58cyclictest0-21swapper/2907:50:0822
12353991390,84cyclictest0-21swapper/2910:41:4122
12353991390,84cyclictest0-21swapper/2910:41:4122
122419913928,71cyclictest0-21swapper/1012:39:292
122419913926,92cyclictest0-21swapper/1012:26:402
122369913950,58cyclictest0-21swapper/911:41:2031
12208991391,78cyclictest0-21swapper/211:45:2212
123539913849,62cyclictest0-21swapper/2909:19:2322
123539913849,62cyclictest0-21swapper/2909:19:2322
12353991380,82cyclictest0-21swapper/2911:30:3822
122369913825,75cyclictest0-21swapper/907:55:2231
123539913730,67cyclictest0-21swapper/2910:58:4722
123539913729,70cyclictest0-21swapper/2912:23:1422
123539913728,69cyclictest0-21swapper/2910:53:5922
122419913726,69cyclictest0-21swapper/1010:59:002
12241991370,81cyclictest0-21swapper/1011:31:362
123539913646,57cyclictest0-21swapper/2909:52:3122
123539913646,57cyclictest0-21swapper/2909:52:3122
123539913644,61cyclictest0-21swapper/2908:15:4622
123539913631,71cyclictest0-21swapper/2911:43:4122
123539913628,68cyclictest0-21swapper/2909:56:4722
123539913628,68cyclictest0-21swapper/2909:56:4722
12353991360,84cyclictest0-21swapper/2909:26:1922
12353991360,84cyclictest0-21swapper/2909:26:1922
12353991360,83cyclictest0-21swapper/2911:50:3822
12244991360,76cyclictest0-21swapper/1109:39:233
12244991360,76cyclictest0-21swapper/1109:39:233
12221991360,82cyclictest0-21swapper/511:15:4027
123539913559,71cyclictest0-21swapper/2911:39:5622
123539913546,55cyclictest0-21swapper/2910:26:1122
123539913540,69cyclictest0-21swapper/2911:29:1522
123539913531,74cyclictest0-21swapper/2912:28:3522
123539913529,70cyclictest0-21swapper/2911:48:3022
12353991350,86cyclictest0-21swapper/2909:20:2722
12353991350,86cyclictest0-21swapper/2909:20:2722
12244991350,83cyclictest0-21swapper/1111:23:183
123539913446,65cyclictest0-21swapper/2910:21:5522
123539913446,65cyclictest0-21swapper/2910:21:5422
123539913434,68cyclictest0-21swapper/2907:37:3522
123539913430,64cyclictest0-21swapper/2910:15:3022
123539913430,64cyclictest0-21swapper/2910:15:3022
123539913428,71cyclictest0-21swapper/2912:34:2822
12353991340,75cyclictest0-21swapper/2907:45:2022
122699913428,105cyclictest0-21swapper/1611:37:358
122369913450,56cyclictest0-21swapper/912:06:0431
122369913429,76cyclictest0-21swapper/910:47:1431
123539913356,60cyclictest0-21swapper/2912:11:2922
123539913332,78cyclictest0-21swapper/2909:43:2622
123539913332,78cyclictest0-21swapper/2909:43:2622
123539913328,67cyclictest0-21swapper/2910:01:0422
123539913327,66cyclictest0-21swapper/2907:10:0422
123539913323,74cyclictest0-21swapper/2911:10:2022
12353991330,82cyclictest0-21swapper/2910:09:3722
12353991330,82cyclictest0-21swapper/2910:09:3722
122449913311,74cyclictest0-21swapper/1111:07:343
12244991330,84cyclictest0-21swapper/1109:19:373
12244991330,84cyclictest0-21swapper/1109:19:373
122369913327,67cyclictest0-21swapper/908:55:3231
122369913326,72cyclictest0-21swapper/910:42:2531
122369913326,72cyclictest0-21swapper/910:42:2531
122089913351,56cyclictest0-21swapper/211:53:2312
122089913344,59cyclictest0-21swapper/207:49:5412
122089913326,68cyclictest0-21swapper/212:13:1012
123539913230,69cyclictest0-21swapper/2912:09:5222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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