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2026-07-29 - 23:51
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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 Jul 29, 2026 12:49:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912960,288ptp4l0-21swapper/107:06:401
1742299288122,13cyclictest151rcu_preempt12:39:4010
173349918929,121cyclictest0-21swapper/308:25:0123
140062187179,6sleep130-21swapper/1307:05:195
173349917629,103cyclictest0-21swapper/309:17:5523
173349917629,103cyclictest0-21swapper/309:17:5523
173349917511,153cyclictest151rcu_preempt11:50:1323
174629916580,20cyclictest151rcu_preempt09:47:4320
174629916580,20cyclictest151rcu_preempt09:47:4220
173509915322,20cyclictest0-21swapper/512:22:2027
173349915129,74cyclictest0-21swapper/309:55:1923
173509915020,107cyclictest0-21swapper/511:53:4527
173509914820,108cyclictest0-21swapper/507:31:0527
174199914345,63cyclictest0-21swapper/1710:22:179
17473991421,84cyclictest0-21swapper/3012:00:1824
173509914232,76cyclictest0-21swapper/511:46:3327
17473991410,79cyclictest0-21swapper/3009:51:2924
17473991410,79cyclictest0-21swapper/3009:51:2924
173509914146,63cyclictest0-21swapper/510:29:3427
174199914056,59cyclictest0-21swapper/1712:02:469
17350991400,82cyclictest0-21swapper/508:35:1227
17350991400,82cyclictest0-21swapper/508:35:1227
173349914030,67cyclictest0-21swapper/312:13:1323
174199913948,56cyclictest0-21swapper/1709:49:099
174199913948,56cyclictest0-21swapper/1709:49:099
174199913932,71cyclictest0-21swapper/1709:08:329
174199913932,71cyclictest0-21swapper/1709:08:319
174199913932,68cyclictest0-21swapper/1707:34:299
174199913929,68cyclictest0-21swapper/1710:58:389
173349913943,62cyclictest0-21swapper/309:40:2223
173349913942,65cyclictest0-21swapper/310:54:3923
174199913854,66cyclictest0-21swapper/1710:11:369
174199913853,59cyclictest0-21swapper/1712:13:599
174599913721,75cyclictest0-21swapper/2610:01:3519
174199913757,67cyclictest0-21swapper/1711:44:359
174199913754,66cyclictest0-21swapper/1709:50:459
174199913754,66cyclictest0-21swapper/1709:50:459
174199913742,62cyclictest0-21swapper/1710:04:089
173509913745,56cyclictest0-21swapper/509:35:0427
173509913745,56cyclictest0-21swapper/509:35:0327
173349913755,61cyclictest0-21swapper/308:50:5423
173349913755,61cyclictest0-21swapper/308:50:5323
173349913728,63cyclictest0-21swapper/312:02:0023
174599913625,64cyclictest0-21swapper/2610:32:0319
174199913658,65cyclictest0-21swapper/1710:19:049
174199913649,56cyclictest0-21swapper/1712:24:419
174199913647,56cyclictest0-21swapper/1711:33:229
173899913634,25cyclictest151rcu_preempt10:55:193
17350991360,84cyclictest0-21swapper/510:37:0327
174599913527,66cyclictest0-21swapper/2607:29:4919
174599913526,66cyclictest0-21swapper/2611:05:1219
174599913524,73cyclictest0-21swapper/2611:15:0819
174199913549,63cyclictest0-21swapper/1712:39:399
174199913542,65cyclictest0-21swapper/1710:47:249
17419991350,84cyclictest0-21swapper/1710:53:499
173509913544,54cyclictest0-21swapper/508:20:1427
173509913529,70cyclictest0-21swapper/511:02:4327
173509913529,68cyclictest0-21swapper/509:24:2227
173509913529,68cyclictest0-21swapper/509:24:2227
173509913528,70cyclictest0-21swapper/507:49:2627
173509913527,66cyclictest0-21swapper/510:50:2527
173349913558,65cyclictest0-21swapper/310:25:1823
173349913530,63cyclictest0-21swapper/309:02:3823
173349913530,63cyclictest0-21swapper/309:02:3823
174599913446,59cyclictest0-21swapper/2610:51:1819
174599913427,67cyclictest0-21swapper/2607:30:2119
174199913448,53cyclictest0-21swapper/1711:24:429
174199913432,65cyclictest0-21swapper/1711:53:419
174199913430,63cyclictest0-21swapper/1709:10:409
174199913430,63cyclictest0-21swapper/1709:10:409
174199913430,63cyclictest0-21swapper/1707:13:069
174199913429,63cyclictest0-21swapper/1709:56:069
173509913429,72cyclictest0-21swapper/509:59:3827
173349913448,65cyclictest0-21swapper/307:33:4323
173349913429,63cyclictest0-21swapper/307:15:0223
174199913360,67cyclictest0-21swapper/1709:16:189
174199913360,67cyclictest0-21swapper/1709:16:189
174199913343,64cyclictest0-21swapper/1710:27:389
174199913330,65cyclictest0-21swapper/1708:15:389
174199913328,62cyclictest0-21swapper/1712:18:179
17419991330,76cyclictest0-21swapper/1709:44:209
173509913330,73cyclictest0-21swapper/512:35:4227
173509913328,66cyclictest0-21swapper/509:18:2927
173509913328,66cyclictest0-21swapper/509:18:2927
173509913327,63cyclictest0-21swapper/511:20:2127
173349913331,65cyclictest0-21swapper/310:20:1223
173349913329,62cyclictest0-21swapper/308:30:2123
173349913329,62cyclictest0-21swapper/308:30:2123
174599913242,62cyclictest0-21swapper/2609:54:3919
174599913242,62cyclictest0-21swapper/2609:54:3819
174599913238,61cyclictest0-21swapper/2611:03:0319
174599913228,66cyclictest0-21swapper/2607:10:0319
17453991320,82cyclictest0-21swapper/2510:34:2618
174199913230,66cyclictest0-21swapper/1712:32:109
174199913229,62cyclictest0-21swapper/1711:26:579
174029913275,1cyclictest151rcu_preempt10:46:035
173509913251,61cyclictest0-21swapper/509:49:0827
173509913251,61cyclictest0-21swapper/509:49:0827
173509913229,70cyclictest0-21swapper/511:15:0027
173509913228,70cyclictest0-21swapper/508:14:3727
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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