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2025-11-22 - 23:42
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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 Sat Nov 22, 2025 12:49:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482913080,299ptp4l0-21swapper/107:06:441
2918099212150,1cyclictest151rcu_preempt09:34:580
278802202195,6sleep250-21swapper/2507:07:2318
29271991653,138cyclictest0-21swapper/2010:40:0213
29271991653,138cyclictest0-21swapper/2010:40:0113
29225991608,140cyclictest0-21swapper/812:29:5930
292529915918,96cyclictest0-21swapper/1510:42:177
292529915918,96cyclictest0-21swapper/1510:42:177
29225991598,128cyclictest0-21swapper/810:33:2330
29225991598,128cyclictest0-21swapper/810:33:2330
292769915824,77cyclictest0-21swapper/2111:27:1614
29225991588,144cyclictest0-21swapper/812:35:2330
29225991578,108cyclictest0-21swapper/807:40:0130
29271991564,111cyclictest0-21swapper/2009:15:0313
292529915618,84cyclictest0-21swapper/1507:55:017
292529915518,80cyclictest0-21swapper/1511:30:237
29225991559,115cyclictest0-21swapper/810:35:1730
29225991559,115cyclictest0-21swapper/810:35:1730
29225991548,145cyclictest0-21swapper/807:35:0030
291809915318,95cyclictest151rcu_preempt08:15:250
29252991520,89cyclictest0-21swapper/1511:36:467
29271991514,93cyclictest0-21swapper/2011:05:1713
29271991514,93cyclictest0-21swapper/2011:05:1613
29271991494,106cyclictest0-21swapper/2011:03:5413
29225991498,140cyclictest0-21swapper/811:10:1630
29249991461,143cyclictest0-21swapper/1412:25:236
29249991461,127cyclictest0-21swapper/1411:20:126
29249991461,127cyclictest0-21swapper/1411:20:116
291809914620,72cyclictest151rcu_preempt09:40:500
291809914620,72cyclictest151rcu_preempt09:40:490
29249991450,104cyclictest0-21swapper/1411:25:016
29225991450,87cyclictest0-21swapper/809:37:5030
29225991450,87cyclictest0-21swapper/809:37:4930
292529914315,101cyclictest0-21swapper/1509:41:527
292529914315,101cyclictest0-21swapper/1509:41:527
293149914227,102cyclictest0-21swapper/2910:12:0322
292529914118,71cyclictest0-21swapper/1511:54:587
29249991401,87cyclictest0-21swapper/1410:26:136
29249991401,87cyclictest0-21swapper/1410:26:126
29249991400,108cyclictest0-21swapper/1411:35:096
29271991393,103cyclictest0-21swapper/2012:24:4313
29271991390,79cyclictest0-21swapper/2009:55:2213
29271991390,79cyclictest0-21swapper/2009:55:2113
292529913917,105cyclictest0-21swapper/1509:55:157
292529913917,105cyclictest0-21swapper/1509:55:147
29225991398,98cyclictest0-21swapper/811:05:0030
29225991390,86cyclictest0-21swapper/812:17:0530
29249991381,114cyclictest0-21swapper/1410:40:266
29249991381,114cyclictest0-21swapper/1410:40:266
29271991374,109cyclictest0-21swapper/2010:45:0213
29271991374,109cyclictest0-21swapper/2010:45:0213
292529913714,98cyclictest0-21swapper/1509:31:297
29249991361,90cyclictest0-21swapper/1409:31:096
2894521360,2sleep90-21swapper/909:15:2031
29271991353,87cyclictest0-21swapper/2011:19:4913
29180991326,119cyclictest151rcu_preempt09:36:070
29180991326,119cyclictest151rcu_preempt09:36:070
292689913139,16cyclictest151rcu_preempt08:45:1711
29225991318,80cyclictest0-21swapper/812:10:1730
292529913018,81cyclictest0-21swapper/1510:39:377
292529913018,81cyclictest0-21swapper/1510:39:367
291849913018,66cyclictest0-21swapper/109:34:341
293149912924,95cyclictest0-21swapper/2911:49:1922
29271991293,85cyclictest0-21swapper/2010:15:0113
29225991298,98cyclictest0-21swapper/810:29:4330
29225991298,98cyclictest0-21swapper/810:29:4330
2918499129129,0cyclictest151rcu_preempt11:52:351
2918499129128,1cyclictest151rcu_preempt09:17:041
29286991280,89cyclictest0-21swapper/2308:30:2516
29271991284,81cyclictest0-21swapper/2008:50:0113
292719912815,63cyclictest0-21swapper/2012:37:3613
293149912732,73cyclictest22369-21taskset10:19:1522
293149912732,73cyclictest22369-21taskset10:19:1522
29276991270,86cyclictest0-21swapper/2110:12:5914
292389912721,56cyclictest0-21swapper/1112:21:373
29225991279,86cyclictest0-21swapper/808:25:1430
291849912635,86cyclictest0-21swapper/112:05:571
292769912512,91cyclictest151rcu_preempt12:33:5814
291849912534,89cyclictest0-21swapper/109:45:161
29249991241,98cyclictest5595-21taskset11:59:296
29249991240,87cyclictest0-21swapper/1407:17:366
292389912439,52cyclictest0-21swapper/1111:08:563
292389912439,52cyclictest0-21swapper/1111:08:563
29180991240,89cyclictest0-21swapper/008:23:210
293149912334,87cyclictest0-21swapper/2910:05:3822
293149912334,87cyclictest0-21swapper/2910:05:3822
29276991230,85cyclictest0-21swapper/2109:52:4114
29276991230,85cyclictest0-21swapper/2109:52:4014
29271991233,76cyclictest0-21swapper/2012:00:1313
292529912318,76cyclictest0-21swapper/1509:52:037
292529912318,76cyclictest0-21swapper/1509:52:027
292389912339,55cyclictest0-21swapper/1107:45:203
292389912324,59cyclictest0-21swapper/1109:24:433
291849912332,60cyclictest0-21swapper/109:54:321
291849912332,60cyclictest0-21swapper/109:54:321
329891122113,6phc2sys0-21swapper/207:05:2312
293149912142,48cyclictest0-21swapper/2907:15:4322
291899912136,15cyclictest151rcu_preempt09:15:2812
291849912131,49cyclictest0-21swapper/112:30:321
292389912029,65cyclictest0-21swapper/1109:12:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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