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2026-06-15 - 17:55
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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 Jun 15, 2026 00:49:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219949928494,3cyclictest151rcu_preempt21:14:334
3273912310,223ptp4l0-21swapper/119:07:191
220089917821,121cyclictest0-21swapper/1421:58:026
220089917721,101cyclictest0-21swapper/1421:20:056
219769916719,147cyclictest0-21swapper/919:15:2231
219769916519,93cyclictest0-21swapper/922:32:1031
219769916519,93cyclictest0-21swapper/922:32:1031
220089916221,91cyclictest0-21swapper/1420:22:256
220089916121,89cyclictest0-21swapper/1400:35:146
220089915811,138cyclictest0-21swapper/1419:59:456
219769915819,85cyclictest0-21swapper/922:15:3631
219769915819,85cyclictest0-21swapper/922:15:3631
173292156148,6sleep170-21swapper/1719:05:149
219769915519,106cyclictest0-21swapper/921:38:1131
220089915421,92cyclictest0-21swapper/1422:00:116
220089915421,92cyclictest0-21swapper/1422:00:116
204602153145,6sleep230-21swapper/2319:06:2416
219509915134,82cyclictest0-21swapper/600:14:1228
219769914919,78cyclictest0-21swapper/921:26:2631
219769914919,78cyclictest0-21swapper/921:26:2631
219769914819,81cyclictest0-21swapper/923:44:5131
221129914660,24cyclictest0-21swapper/2920:35:1522
219509914430,113cyclictest0-21swapper/619:55:0028
21914991420,85cyclictest0-21swapper/122:37:231
21914991420,85cyclictest0-21swapper/122:37:231
21914991420,82cyclictest0-21swapper/100:30:411
221279914151,62cyclictest0-21swapper/3120:02:2225
220089914118,47cyclictest0-21swapper/1423:54:346
220089914014,103cyclictest0-21swapper/1422:14:256
220089914014,103cyclictest0-21swapper/1422:14:256
219509914029,19cyclictest0-21swapper/623:02:3628
219149914053,57cyclictest0-21swapper/123:00:541
221279913932,71cyclictest0-21swapper/3100:04:2725
221279913926,67cyclictest0-21swapper/3122:52:1925
22093991390,86cyclictest0-21swapper/2721:25:2420
22093991390,86cyclictest0-21swapper/2721:25:2420
219769913917,120cyclictest151rcu_preempt21:40:5231
219149913928,92cyclictest0-21swapper/122:52:221
21914991390,80cyclictest0-21swapper/123:40:141
221279913852,56cyclictest0-21swapper/3122:06:5225
221279913852,56cyclictest0-21swapper/3122:06:5225
219149913831,70cyclictest0-21swapper/119:23:061
219149913828,90cyclictest0-21swapper/121:34:511
221279913747,55cyclictest0-21swapper/3123:51:0625
221279913736,70cyclictest0-21swapper/3120:10:2325
219149913730,67cyclictest0-21swapper/123:53:171
21914991370,81cyclictest0-21swapper/120:36:041
21914991370,79cyclictest0-21swapper/122:06:561
21914991370,79cyclictest0-21swapper/122:06:551
21914991370,78cyclictest0-21swapper/121:05:591
221279913629,72cyclictest0-21swapper/3121:44:4325
221279913629,68cyclictest0-21swapper/3119:58:0525
219149913626,65cyclictest0-21swapper/121:36:271
21914991360,78cyclictest0-21swapper/122:10:391
21914991360,78cyclictest0-21swapper/122:10:391
221279913548,58cyclictest0-21swapper/3120:37:0625
221279913527,64cyclictest0-21swapper/3100:31:4425
221279913517,71cyclictest0-21swapper/3121:52:2725
219509913520,101cyclictest0-21swapper/621:30:0728
219149913553,66cyclictest0-21swapper/122:00:471
219149913553,66cyclictest0-21swapper/122:00:461
219149913530,68cyclictest0-21swapper/122:18:401
219149913530,68cyclictest0-21swapper/122:18:401
21914991351,77cyclictest0-21swapper/119:36:451
21914991350,81cyclictest0-21swapper/100:22:121
21914991350,78cyclictest0-21swapper/121:55:091
221279913439,67cyclictest0-21swapper/3122:57:0725
221279913432,76cyclictest0-21swapper/3100:17:5025
221279913431,75cyclictest0-21swapper/3123:38:5025
221279913431,71cyclictest0-21swapper/3100:36:3225
221279913430,75cyclictest0-21swapper/3121:45:3025
22112991340,82cyclictest0-21swapper/2922:22:5422
22112991340,82cyclictest0-21swapper/2922:22:5322
219149913429,63cyclictest0-21swapper/100:26:251
219149913429,61cyclictest0-21swapper/121:25:151
219149913429,61cyclictest0-21swapper/121:25:141
21914991341,79cyclictest0-21swapper/119:25:161
21914991340,81cyclictest0-21swapper/121:15:051
21914991340,80cyclictest0-21swapper/100:00:461
21914991340,78cyclictest0-21swapper/122:45:251
21914991340,78cyclictest0-21swapper/122:45:241
221279913330,77cyclictest0-21swapper/3121:33:1325
221279913330,76cyclictest0-21swapper/3122:03:4125
221279913330,76cyclictest0-21swapper/3122:03:4125
221279913330,73cyclictest0-21swapper/3123:29:1125
221279913329,66cyclictest0-21swapper/3100:13:3325
221279913328,71cyclictest0-21swapper/3123:09:2525
221279913328,71cyclictest0-21swapper/3122:41:3725
221279913328,71cyclictest0-21swapper/3122:41:3725
220449913361,71cyclictest0-21swapper/1819:10:1910
22008991330,81cyclictest0-21swapper/1420:18:076
219149913331,66cyclictest0-21swapper/120:15:161
21914991330,82cyclictest0-21swapper/119:58:551
21914991330,79cyclictest0-21swapper/119:30:211
21914991330,77cyclictest0-21swapper/119:10:031
221279913230,74cyclictest0-21swapper/3123:33:5925
221279913229,75cyclictest0-21swapper/3122:28:4825
221279913229,75cyclictest0-21swapper/3122:28:4825
221279913229,74cyclictest0-21swapper/3100:21:0225
221279913229,68cyclictest0-21swapper/3121:17:4425
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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