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2026-01-11 - 21:40
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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 Sun Jan 11, 2026 12:48:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4354991993,191cyclictest0-21swapper/2307:15:1516
42819919114,173cyclictest0-21swapper/1112:40:003
42819918014,113cyclictest0-21swapper/1110:44:343
42819918014,113cyclictest0-21swapper/1110:44:343
4350991790,164cyclictest0-21swapper/2207:50:0115
4316991680,160cyclictest0-21swapper/1609:55:578
4316991680,160cyclictest0-21swapper/1609:55:578
43069916632,101cyclictest0-21swapper/1408:09:386
330891166158,6phc2sys0-21swapper/207:05:2612
43069916432,131cyclictest0-21swapper/1410:00:166
43069916432,131cyclictest0-21swapper/1410:00:166
43689916331,82cyclictest0-21swapper/2610:12:4519
43689916331,82cyclictest0-21swapper/2610:12:4519
43069916332,21cyclictest0-21swapper/1410:09:216
43069916332,21cyclictest0-21swapper/1410:09:216
43689916026,85cyclictest0-21swapper/2612:25:4819
43069916028,131cyclictest0-21swapper/1411:57:496
43069916022,137cyclictest0-21swapper/1408:01:406
43069915632,65cyclictest0-21swapper/1409:33:316
43069915518,99cyclictest0-21swapper/1411:14:016
43069915518,99cyclictest0-21swapper/1411:14:006
42819915314,78cyclictest0-21swapper/1111:41:443
43689915130,90cyclictest0-21swapper/2610:20:1419
43689915130,90cyclictest0-21swapper/2610:20:1419
43069915021,92cyclictest0-21swapper/1410:29:396
43069915021,92cyclictest0-21swapper/1410:29:396
43169914627,89cyclictest0-21swapper/1611:12:268
43169914627,89cyclictest0-21swapper/1611:12:268
43069914322,89cyclictest13534-21taskset12:10:556
43169914219,110cyclictest0-21swapper/1610:49:548
43169914219,110cyclictest0-21swapper/1610:49:538
43069914129,111cyclictest0-21swapper/1407:53:406
43689913848,61cyclictest0-21swapper/2612:14:3519
4298991380,85cyclictest0-21swapper/1307:12:595
42209913832,44cyclictest0-21swapper/110:39:351
42209913832,44cyclictest0-21swapper/110:39:341
43689913746,60cyclictest0-21swapper/2612:23:0819
436099137135,1cyclictest151rcu_preempt10:05:0217
436099137135,1cyclictest151rcu_preempt10:05:0217
430699137129,7cyclictest16495-21cpuspeed08:10:116
42819913650,56cyclictest0-21swapper/1109:16:233
42819913614,92cyclictest0-21swapper/1111:19:503
42429913643,57cyclictest0-21swapper/510:18:4927
42429913643,57cyclictest0-21swapper/510:18:4927
42429913641,60cyclictest0-21swapper/510:40:1127
42429913641,60cyclictest0-21swapper/510:40:1127
43169913546,57cyclictest0-21swapper/1611:42:428
43169913544,60cyclictest0-21swapper/1611:36:538
43169913543,51cyclictest0-21swapper/1610:02:378
43169913543,51cyclictest0-21swapper/1610:02:368
43169913526,63cyclictest0-21swapper/1612:12:058
43169913524,57cyclictest0-21swapper/1610:23:408
43169913524,57cyclictest0-21swapper/1610:23:408
42819913536,60cyclictest0-21swapper/1112:02:353
42819913525,66cyclictest0-21swapper/1109:43:073
43069913415,70cyclictest0-21swapper/1409:50:386
43069913415,70cyclictest0-21swapper/1409:50:386
42819913448,56cyclictest0-21swapper/1110:16:153
42819913448,56cyclictest0-21swapper/1110:16:153
42819913431,73cyclictest0-21swapper/1111:37:593
42819913427,67cyclictest0-21swapper/1107:45:023
42429913451,57cyclictest0-21swapper/510:11:2027
42429913451,57cyclictest0-21swapper/510:11:2027
42429913442,58cyclictest0-21swapper/510:20:2527
42429913442,58cyclictest0-21swapper/510:20:2527
42429913425,64cyclictest0-21swapper/509:12:3327
42429913425,108cyclictest0-21swapper/510:51:5727
42429913425,108cyclictest0-21swapper/510:51:5727
43689913328,69cyclictest0-21swapper/2609:36:2519
43689913327,68cyclictest0-21swapper/2609:28:5619
43609913330,18cyclictest0-21swapper/2411:13:5917
43609913330,18cyclictest0-21swapper/2411:13:5917
43169913317,101cyclictest23424-21ssh09:29:398
4306991331,81cyclictest0-21swapper/1409:41:326
43069913315,92cyclictest0-21swapper/1408:15:346
42819913326,64cyclictest0-21swapper/1110:57:073
42819913326,64cyclictest0-21swapper/1110:57:073
42429913347,56cyclictest0-21swapper/509:37:4027
42429913345,54cyclictest0-21swapper/511:20:1627
42429913339,63cyclictest0-21swapper/512:33:1327
42429913330,68cyclictest0-21swapper/509:24:1827
42429913325,63cyclictest0-21swapper/508:40:2927
43689913228,69cyclictest0-21swapper/2609:11:1819
43689913225,70cyclictest0-21swapper/2607:38:5119
4350991321,76cyclictest0-21swapper/2211:15:1215
43169913245,68cyclictest0-21swapper/1610:09:238
43169913245,68cyclictest0-21swapper/1610:09:238
43169913228,103cyclictest0-21swapper/1609:49:468
43169913228,103cyclictest0-21swapper/1609:49:458
43169913226,104cyclictest0-21swapper/1611:28:458
42819913247,65cyclictest0-21swapper/1107:50:213
42819913244,66cyclictest0-21swapper/1109:00:223
42819913228,65cyclictest0-21swapper/1107:40:133
42819913227,61cyclictest0-21swapper/1111:10:133
42819913227,61cyclictest0-21swapper/1111:10:133
42819913225,64cyclictest0-21swapper/1107:25:153
42429913256,59cyclictest0-21swapper/511:37:5527
42429913229,69cyclictest0-21swapper/510:56:1327
42429913229,69cyclictest0-21swapper/510:56:1327
43689913131,75cyclictest0-21swapper/2608:59:3119
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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