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2026-05-08 - 15:28
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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 Fri May 08, 2026 12:49:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912330,225ptp4l0-21swapper/107:05:511
326299917545,129cyclictest0-21swapper/710:14:3629
32648991692,110cyclictest9416-21irqrtprio11:10:1731
281582165155,7sleep80-21swapper/807:05:1530
326299916029,130cyclictest0-21swapper/709:24:2329
326299916029,130cyclictest0-21swapper/709:24:2229
327229915533,82cyclictest0-21swapper/2607:30:2219
326299915524,101cyclictest0-21swapper/710:53:0729
312512153146,6sleep20-21swapper/207:08:5212
299892150141,7sleep140-21swapper/1407:05:206
327229914688,58cyclictest173-21ksoftirqd/2610:47:3419
32648991450,87cyclictest0-21swapper/912:12:1631
32629991451,86cyclictest0-21swapper/710:46:1229
327229914354,89cyclictest173-21ksoftirqd/2610:41:4219
32648991431,86cyclictest0-21swapper/908:15:3031
32648991420,84cyclictest0-21swapper/912:22:2531
32629991400,82cyclictest0-21swapper/710:28:4829
326169914062,24cyclictest151rcu_preempt09:08:2127
326169914062,24cyclictest151rcu_preempt09:08:2027
32648991390,79cyclictest0-21swapper/908:55:3531
32648991390,79cyclictest0-21swapper/908:55:3431
326299913928,63cyclictest0-21swapper/712:03:4029
326489913846,55cyclictest0-21swapper/912:26:4131
32648991380,84cyclictest0-21swapper/907:45:0231
32648991370,83cyclictest0-21swapper/912:18:0931
32695991360,85cyclictest0-21swapper/1909:52:5711
32695991360,85cyclictest0-21swapper/1909:52:5611
326489913642,66cyclictest0-21swapper/909:14:4931
326489913642,66cyclictest0-21swapper/909:14:4931
326489913632,68cyclictest0-21swapper/910:14:0931
326489913630,68cyclictest0-21swapper/909:53:5031
326489913630,68cyclictest0-21swapper/909:53:5031
326489913629,66cyclictest0-21swapper/910:24:5131
326489913628,63cyclictest0-21swapper/909:20:1031
326489913628,63cyclictest0-21swapper/909:20:0931
326489913531,69cyclictest0-21swapper/912:01:3531
326489913530,66cyclictest0-21swapper/912:30:1231
326489913530,64cyclictest0-21swapper/909:43:0931
326489913530,64cyclictest0-21swapper/909:43:0831
326489913530,63cyclictest0-21swapper/909:15:2231
326489913530,63cyclictest0-21swapper/909:15:2231
326489913529,67cyclictest0-21swapper/911:38:4331
326489913529,64cyclictest0-21swapper/909:32:1231
326489913529,64cyclictest0-21swapper/909:32:1231
327439913421,83cyclictest0-21swapper/3109:59:0125
327439913421,83cyclictest0-21swapper/3109:59:0025
326489913454,67cyclictest0-21swapper/909:57:3431
326489913454,67cyclictest0-21swapper/909:57:3431
326489913437,63cyclictest0-21swapper/911:28:5931
326489913428,61cyclictest0-21swapper/908:00:0131
326489913427,65cyclictest0-21swapper/907:50:5631
32648991341,82cyclictest0-21swapper/910:54:3031
32648991340,83cyclictest0-21swapper/911:46:3631
32648991340,77cyclictest0-21swapper/910:39:1731
326489913344,66cyclictest0-21swapper/909:28:4331
326489913344,66cyclictest0-21swapper/909:28:4231
326489913329,64cyclictest0-21swapper/912:05:2031
32648991330,84cyclictest0-21swapper/912:37:5631
32648991330,76cyclictest0-21swapper/909:45:1831
32648991330,76cyclictest0-21swapper/909:45:1731
326299913321,20cyclictest0-21swapper/708:10:4029
326489913227,63cyclictest0-21swapper/911:05:2731
327439913123,73cyclictest0-21swapper/3109:48:2025
327439913123,73cyclictest0-21swapper/3109:48:1925
32681991319,68cyclictest1111rcuc/1610:11:058
326489913130,62cyclictest0-21swapper/910:32:5231
326489913127,64cyclictest0-21swapper/911:24:4231
326489913115,115cyclictest31375-21kworker/9:111:55:1131
32648991310,80cyclictest0-21swapper/910:18:2631
326489913049,63cyclictest0-21swapper/911:51:2631
326489913033,69cyclictest0-21swapper/909:36:4531
326489913033,69cyclictest0-21swapper/909:36:4431
326489913030,61cyclictest0-21swapper/910:58:3131
326489913029,63cyclictest0-21swapper/910:01:2031
326489913028,60cyclictest0-21swapper/910:06:3931
326489913026,61cyclictest0-21swapper/908:35:1731
326299913019,31cyclictest0-21swapper/707:52:2929
327439912926,69cyclictest0-21swapper/3109:43:3125
327439912926,69cyclictest0-21swapper/3109:43:3025
327439912919,68cyclictest0-21swapper/3110:49:3225
326489912929,62cyclictest0-21swapper/909:00:2431
326489912929,62cyclictest0-21swapper/909:00:2331
326489912926,59cyclictest0-21swapper/907:35:2631
326489912925,65cyclictest0-21swapper/908:50:0231
326489912925,65cyclictest0-21swapper/908:50:0131
32648991290,74cyclictest0-21swapper/910:44:3631
326169912916,79cyclictest0-21swapper/510:06:0427
326169912913,95cyclictest0-21swapper/511:10:1227
327229912855,59cyclictest0-21swapper/2609:26:5219
327229912855,59cyclictest0-21swapper/2609:26:5219
327229912838,59cyclictest0-21swapper/2608:58:3319
327229912838,59cyclictest0-21swapper/2608:58:3219
326489912829,62cyclictest0-21swapper/911:42:2331
32648991280,73cyclictest0-21swapper/909:05:1231
32648991280,73cyclictest0-21swapper/909:05:1131
32638991280,88cyclictest0-21swapper/808:40:2330
32638991280,88cyclictest0-21swapper/808:40:2230
326299912846,57cyclictest0-21swapper/711:43:5529
327439912725,62cyclictest0-21swapper/3109:52:3625
327439912725,62cyclictest0-21swapper/3109:52:3625
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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