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2026-05-08 - 00:50
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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 Thu May 07, 2026 12:48:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912580,250ptp4l0-21swapper/107:06:371
3273912580,250ptp4l0-21swapper/107:06:371
49509923928,162cyclictest0-21swapper/2409:35:1117
324802229220,7sleep90-21swapper/907:05:1631
324802229220,7sleep90-21swapper/907:05:1631
49219918421,124cyclictest22440-21cpuspeed_turbos11:40:1113
49289917411,162cyclictest0-21swapper/2110:04:4414
49289917411,136cyclictest0-21swapper/2110:42:5714
4855991730,169cyclictest151rcu_preempt10:27:073
48979917120,106cyclictest0-21swapper/1711:02:559
4855991709,144cyclictest151rcu_preempt10:33:083
49289916911,109cyclictest0-21swapper/2109:48:0514
48349916316,92cyclictest151rcu_preempt12:31:2430
48349916316,92cyclictest151rcu_preempt12:31:2430
49129916013,144cyclictest0-21swapper/1909:20:2011
49289915811,92cyclictest0-21swapper/2109:42:0114
49219915619,112cyclictest0-21swapper/2010:15:1313
49509915428,89cyclictest0-21swapper/2407:20:0217
49289915311,105cyclictest0-21swapper/2109:11:4914
49289915111,89cyclictest0-21swapper/2112:04:2714
49289914811,91cyclictest0-21swapper/2111:13:0914
4950991450,84cyclictest0-21swapper/2407:37:0517
48199914459,27cyclictest0-21swapper/611:36:5728
47809914348,63cyclictest0-21swapper/010:57:560
47809914121,41cyclictest0-21swapper/008:25:190
49219914056,67cyclictest0-21swapper/2012:05:0013
49219914029,66cyclictest0-21swapper/2009:00:2513
4855991408,76cyclictest0-21swapper/1109:05:143
47809914055,61cyclictest0-21swapper/009:55:380
49219913955,64cyclictest0-21swapper/2007:10:1813
49219913952,51cyclictest0-21swapper/2012:19:1413
49219913952,51cyclictest0-21swapper/2012:19:1413
4897991390,87cyclictest0-21swapper/1707:45:119
4928991380,87cyclictest0-21swapper/2110:32:3114
49219913856,65cyclictest0-21swapper/2009:58:3813
49219913828,64cyclictest0-21swapper/2011:13:0413
47809913850,50cyclictest0-21swapper/011:16:540
49219913730,67cyclictest0-21swapper/2011:15:2013
4855991370,84cyclictest0-21swapper/1107:25:513
47809913729,73cyclictest0-21swapper/010:05:180
47809913727,70cyclictest0-21swapper/010:17:340
47809913727,66cyclictest0-21swapper/011:26:050
49509913649,61cyclictest0-21swapper/2410:34:3617
49509913625,67cyclictest0-21swapper/2411:45:1917
49289913611,78cyclictest0-21swapper/2111:24:1714
49219913630,65cyclictest0-21swapper/2011:22:4713
49219913630,60cyclictest0-21swapper/2011:48:1213
47809913643,59cyclictest0-21swapper/012:32:150
47809913643,59cyclictest0-21swapper/012:32:150
47809913629,69cyclictest0-21swapper/010:03:390
47809913626,70cyclictest0-21swapper/010:35:500
47809913626,69cyclictest0-21swapper/008:55:160
49509913540,66cyclictest0-21swapper/2412:05:3717
49509913540,66cyclictest0-21swapper/2412:05:3717
49219913560,67cyclictest0-21swapper/2010:10:2513
49219913529,64cyclictest0-21swapper/2011:09:1113
48979913533,89cyclictest0-21swapper/1710:27:399
47809913554,64cyclictest0-21swapper/011:45:110
47809913546,65cyclictest0-21swapper/012:37:020
47809913546,65cyclictest0-21swapper/012:37:010
47809913529,69cyclictest0-21swapper/009:01:040
47809913527,69cyclictest0-21swapper/008:50:090
4950991340,83cyclictest0-21swapper/2411:20:1517
49219913443,61cyclictest0-21swapper/2009:49:3013
49219913429,66cyclictest0-21swapper/2008:50:1513
47809913433,71cyclictest0-21swapper/010:41:360
47809913430,73cyclictest0-21swapper/011:12:040
47809913428,68cyclictest0-21swapper/009:40:380
47809913428,67cyclictest0-21swapper/012:19:560
47809913428,67cyclictest0-21swapper/012:19:560
47809913426,71cyclictest0-21swapper/011:01:370
49509913352,62cyclictest0-21swapper/2408:50:1817
49509913331,65cyclictest0-21swapper/2411:17:1417
49509913329,66cyclictest0-21swapper/2411:35:5817
49219913329,65cyclictest0-21swapper/2010:00:1413
49219913326,64cyclictest0-21swapper/2008:25:5313
48559913331,62cyclictest0-21swapper/1112:03:133
48559913328,68cyclictest0-21swapper/1112:00:023
47809913342,60cyclictest0-21swapper/012:23:060
47809913342,60cyclictest0-21swapper/012:23:060
47809913329,67cyclictest0-21swapper/009:12:200
47809913328,70cyclictest0-21swapper/012:06:180
47809913328,70cyclictest0-21swapper/012:06:170
47809913328,69cyclictest0-21swapper/009:05:510
47809913328,68cyclictest0-21swapper/009:24:390
49509913227,68cyclictest0-21swapper/2409:34:4317
49509913226,62cyclictest0-21swapper/2407:55:1517
49289913211,82cyclictest0-21swapper/2112:25:1814
49289913211,82cyclictest0-21swapper/2112:25:1814
49219913221,80cyclictest0-21swapper/2009:20:4213
47809913258,66cyclictest0-21swapper/009:19:320
47809913247,55cyclictest0-21swapper/007:53:150
47809913240,59cyclictest0-21swapper/009:52:570
47809913230,72cyclictest0-21swapper/010:14:200
47809913229,66cyclictest0-21swapper/008:15:100
47809913228,70cyclictest0-21swapper/011:30:120
47809913227,63cyclictest0-21swapper/010:20:130
47809913226,66cyclictest0-21swapper/010:27:420
47809913225,69cyclictest0-21swapper/011:07:540
4959991310,128cyclictest0-21swapper/2509:58:5518
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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