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2025-12-11 - 01:25
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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 Wed Dec 10, 2025 12:49:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2503699360163,1cyclictest151rcu_preempt09:31:5419
2482912990,291ptp4l0-21swapper/107:05:391
2505499273111,2cyclictest151rcu_preempt11:36:4721
234662237230,6sleep90-21swapper/907:07:0631
205542202192,7sleep270-21swapper/2707:05:1620
24863991810,133cyclictest31564-21awk12:20:1226
248869917421,107cyclictest0-21swapper/709:20:2229
248869917221,149cyclictest0-21swapper/709:05:2429
248869916721,114cyclictest0-21swapper/711:50:0029
249479916332,103cyclictest0-21swapper/1510:51:537
249479916332,103cyclictest0-21swapper/1510:51:527
249409916257,8cyclictest151rcu_preempt07:57:086
25036991607,132cyclictest0-21swapper/2610:59:1619
25036991607,132cyclictest0-21swapper/2610:59:1619
248869916021,89cyclictest0-21swapper/710:45:2029
248869916021,89cyclictest0-21swapper/710:45:2029
248869915821,84cyclictest0-21swapper/710:26:3829
248869915821,84cyclictest0-21swapper/710:26:3829
248869915621,81cyclictest0-21swapper/709:49:4529
248869915621,81cyclictest0-21swapper/709:49:4529
24837991549,139cyclictest0-21swapper/110:06:461
24837991549,139cyclictest0-21swapper/110:06:461
248379915418,135cyclictest0-21swapper/112:14:291
248379915418,122cyclictest0-21swapper/110:00:531
248379915418,122cyclictest0-21swapper/110:00:531
249479915324,87cyclictest0-21swapper/1507:20:177
248379915318,98cyclictest0-21swapper/112:21:451
248379915318,83cyclictest0-21swapper/111:41:531
248379915318,134cyclictest0-21swapper/111:25:191
248379915218,92cyclictest0-21swapper/109:18:401
248379915218,89cyclictest0-21swapper/111:10:531
248379915218,89cyclictest0-21swapper/111:10:531
248379915218,84cyclictest0-21swapper/110:41:301
248379915218,84cyclictest0-21swapper/110:41:301
248379915118,128cyclictest0-21swapper/109:33:371
235852151143,6sleep170-21swapper/1707:08:519
249479914734,84cyclictest0-21swapper/1508:30:497
24947991470,90cyclictest0-21swapper/1510:28:227
24947991470,90cyclictest0-21swapper/1510:28:227
248869914734,64cyclictest0-21swapper/712:03:5429
24852991470,89cyclictest0-21swapper/312:38:0123
249949914546,98cyclictest0-21swapper/2109:59:3814
249949914431,104cyclictest0-21swapper/2111:04:5014
249949914431,104cyclictest0-21swapper/2111:04:4914
249949914346,66cyclictest0-21swapper/2112:12:0914
248379914218,70cyclictest0-21swapper/111:01:481
248379914218,70cyclictest0-21swapper/111:01:481
248639914124,19cyclictest0-21swapper/411:32:0526
248379914118,74cyclictest0-21swapper/111:58:591
24934991400,89cyclictest0-21swapper/1311:43:095
249949913942,55cyclictest0-21swapper/2111:42:4614
249949913937,44cyclictest0-21swapper/2110:26:5214
249949913937,44cyclictest0-21swapper/2110:26:5214
249199913825,104cyclictest0-21swapper/1109:10:173
248379913844,68cyclictest22-21ksoftirqd/112:02:241
234132138130,6sleep260-21swapper/2607:06:5119
249479913724,72cyclictest0-21swapper/1512:36:077
24934991370,86cyclictest0-21swapper/1309:42:405
24934991370,86cyclictest0-21swapper/1309:42:405
249479913634,100cyclictest0-21swapper/1511:48:337
248639913625,81cyclictest0-21swapper/409:44:0826
248639913625,81cyclictest0-21swapper/409:44:0726
24837991360,82cyclictest0-21swapper/109:20:171
249479913413,70cyclictest0-21swapper/1509:57:547
248639913431,68cyclictest0-21swapper/410:00:1226
248639913431,68cyclictest0-21swapper/410:00:1226
248639913431,67cyclictest0-21swapper/411:47:3626
24863991340,78cyclictest0-21swapper/411:05:2426
24863991340,78cyclictest0-21swapper/411:05:2426
25018991337,69cyclictest0-21swapper/2408:40:2117
249949913329,98cyclictest0-21swapper/2110:51:2814
249949913329,98cyclictest0-21swapper/2110:51:2714
25036991327,65cyclictest0-21swapper/2611:50:1919
249949913232,96cyclictest0-21swapper/2112:38:2014
249949913231,99cyclictest0-21swapper/2109:32:0714
249949913132,98cyclictest0-21swapper/2109:12:3514
249949913131,98cyclictest0-21swapper/2110:49:5114
249949913131,98cyclictest0-21swapper/2110:49:5114
249349913146,54cyclictest0-21swapper/1308:51:375
24934991311,85cyclictest13658-21diskmemload12:11:455
248639913129,69cyclictest0-21swapper/411:16:2926
248639913129,69cyclictest0-21swapper/411:16:2926
248639913127,67cyclictest0-21swapper/409:52:4126
248639913127,67cyclictest0-21swapper/409:52:4126
248639913126,62cyclictest0-21swapper/408:31:2126
24863991311,80cyclictest0-21swapper/407:10:1926
24852991315,75cyclictest0-21swapper/309:09:0423
249949913031,98cyclictest0-21swapper/2109:29:0914
249949913031,73cyclictest0-21swapper/2112:04:0314
249949913030,98cyclictest0-21swapper/2111:59:3714
249349913049,54cyclictest0-21swapper/1312:05:265
248809913043,55cyclictest0-21swapper/610:28:1328
248809913043,55cyclictest0-21swapper/610:28:1328
248809913024,62cyclictest0-21swapper/609:42:1628
248809913024,62cyclictest0-21swapper/609:42:1628
248639913026,67cyclictest0-21swapper/412:09:5626
248869912927,68cyclictest0-21swapper/711:26:2929
248809912928,66cyclictest0-21swapper/610:14:5228
248809912928,66cyclictest0-21swapper/610:14:5228
248809912928,66cyclictest0-21swapper/608:18:2228
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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