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2025-12-01 - 14:20
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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 Dec 01, 2025 00:49:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482913080,299ptp4l0-21swapper/119:09:431
105059917959,111cyclictest0-21swapper/321:19:4223
1060599168168,0cyclictest112-21ksoftirqd/1621:14:198
106059916652,91cyclictest0-21swapper/1622:48:588
106059916652,85cyclictest0-21swapper/1621:49:538
105059916544,107cyclictest0-21swapper/322:09:5623
106059916316,123cyclictest0-21swapper/1600:16:458
106379915515,112cyclictest0-21swapper/2022:34:3213
105059915432,108cyclictest0-21swapper/323:27:5723
10495991500,85cyclictest0-21swapper/220:15:1612
10519991480,87cyclictest0-21swapper/500:26:5027
106379914711,112cyclictest0-21swapper/2019:30:1513
106379914711,112cyclictest0-21swapper/2019:30:1513
105059914732,72cyclictest0-21swapper/300:17:2323
106059914531,67cyclictest0-21swapper/1600:00:028
105199914522,114cyclictest0-21swapper/500:02:2827
105409914432,70cyclictest0-21swapper/722:50:2129
105059914227,64cyclictest0-21swapper/322:50:0123
10495991420,85cyclictest0-21swapper/223:21:0012
10519991410,83cyclictest0-21swapper/520:25:0127
105059914120,89cyclictest0-21swapper/323:17:4723
105059914119,99cyclictest0-21swapper/322:16:5323
10495991411,84cyclictest0-21swapper/220:59:3712
10495991410,83cyclictest0-21swapper/221:17:0112
105199914027,109cyclictest0-21swapper/500:18:1227
10495991400,83cyclictest0-21swapper/219:35:1512
10495991400,83cyclictest0-21swapper/219:35:1512
10605991390,85cyclictest0-21swapper/1619:15:168
10605991390,85cyclictest0-21swapper/1619:15:168
10495991390,85cyclictest0-21swapper/223:08:1012
106139913848,62cyclictest0-21swapper/1700:04:329
106929913727,80cyclictest0-21swapper/2822:55:0121
10660991370,83cyclictest0-21swapper/2421:57:2917
106139913748,58cyclictest0-21swapper/1720:56:569
106139913745,59cyclictest0-21swapper/1720:40:239
10495991370,82cyclictest0-21swapper/219:10:2312
10495991370,82cyclictest0-21swapper/219:10:2312
10495991370,81cyclictest0-21swapper/221:33:1512
106139913647,63cyclictest0-21swapper/1723:48:309
106139913646,58cyclictest0-21swapper/1720:07:489
106139913646,58cyclictest0-21swapper/1720:07:479
106139913628,64cyclictest0-21swapper/1719:53:549
106139913628,64cyclictest0-21swapper/1719:53:549
10519991360,83cyclictest0-21swapper/520:50:1627
10495991360,81cyclictest0-21swapper/223:00:5412
10495991360,81cyclictest0-21swapper/222:11:1212
106929913518,114cyclictest151rcu_preempt00:36:0321
106859913528,66cyclictest0-21swapper/2700:10:0220
106379913526,84cyclictest0-21swapper/2022:15:2313
106379913525,109cyclictest0-21swapper/2000:16:2213
106139913556,60cyclictest0-21swapper/1721:45:039
106139913553,57cyclictest0-21swapper/1721:08:429
106139913547,57cyclictest0-21swapper/1700:23:469
106139913535,69cyclictest0-21swapper/1722:14:599
106139913530,73cyclictest0-21swapper/1721:14:039
106139913528,72cyclictest0-21swapper/1722:49:119
106139913527,71cyclictest0-21swapper/1721:37:349
106139913526,70cyclictest0-21swapper/1720:01:239
106139913526,70cyclictest0-21swapper/1720:01:229
104959913532,63cyclictest0-21swapper/222:00:1812
104959913529,68cyclictest0-21swapper/223:10:1712
104959913529,64cyclictest0-21swapper/221:05:4712
106929913418,87cyclictest0-21swapper/2819:30:2321
106929913418,87cyclictest0-21swapper/2819:30:2221
106379913414,113cyclictest0-21swapper/2019:40:2413
106379913414,113cyclictest0-21swapper/2019:40:2413
106139913452,57cyclictest0-21swapper/1700:38:129
106139913451,62cyclictest0-21swapper/1722:22:279
106139913445,61cyclictest0-21swapper/1723:13:149
106139913440,60cyclictest0-21swapper/1719:11:109
106139913440,60cyclictest0-21swapper/1719:11:109
106139913431,75cyclictest0-21swapper/1723:57:359
106139913427,70cyclictest0-21swapper/1721:58:579
106139913424,61cyclictest0-21swapper/1721:41:519
106139913421,72cyclictest0-21swapper/1722:09:069
10495991340,85cyclictest0-21swapper/200:00:0012
10495991340,80cyclictest0-21swapper/220:25:5712
10495991340,80cyclictest0-21swapper/200:04:1912
90442133125,6sleep60-21swapper/619:05:5428
106859913344,57cyclictest0-21swapper/2721:13:4120
106859913327,70cyclictest0-21swapper/2722:10:1920
106859913326,61cyclictest0-21swapper/2722:55:1320
106379913326,86cyclictest0-21swapper/2000:22:0113
106139913346,56cyclictest0-21swapper/1700:16:169
106139913340,60cyclictest0-21swapper/1721:33:509
106139913332,74cyclictest0-21swapper/1700:28:039
106139913330,71cyclictest0-21swapper/1722:19:149
106139913328,67cyclictest0-21swapper/1722:40:389
106929913258,49cyclictest0-21swapper/2819:50:2321
106929913258,49cyclictest0-21swapper/2819:50:2221
106929913230,67cyclictest0-21swapper/2800:22:1021
106859913234,62cyclictest0-21swapper/2720:38:2520
106859913229,69cyclictest0-21swapper/2719:30:0220
106859913229,68cyclictest0-21swapper/2723:10:4320
106859913227,70cyclictest0-21swapper/2723:20:5220
106139913244,54cyclictest0-21swapper/1723:01:289
106139913227,71cyclictest0-21swapper/1721:50:249
106139913227,71cyclictest0-21swapper/1719:16:309
106139913227,71cyclictest0-21swapper/1719:16:299
105199913250,53cyclictest0-21swapper/523:20:1627
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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