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2025-12-04 - 17:39
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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 Thu Dec 04, 2025 12:48:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482912890,281ptp4l0-21swapper/107:07:431
2482912890,281ptp4l0-21swapper/107:07:421
226879917314,115cyclictest0-21swapper/2407:50:2417
2269899168167,1cyclictest151rcu_preempt10:10:2320
22648991671,139cyclictest0-21swapper/1510:50:297
226529916045,84cyclictest0-21swapper/1611:18:388
226879915614,92cyclictest0-21swapper/2408:50:2717
226529915449,75cyclictest0-21swapper/1612:00:318
226229914629,91cyclictest151rcu_preempt08:12:4531
226879914514,88cyclictest0-21swapper/2408:35:1717
22599991450,87cyclictest0-21swapper/407:20:1326
225909914538,68cyclictest0-21swapper/209:47:1212
227019914250,58cyclictest0-21swapper/2812:20:1521
22701991400,84cyclictest0-21swapper/2809:30:2121
227019913944,66cyclictest0-21swapper/2810:11:4621
227019913944,60cyclictest0-21swapper/2807:10:0221
227019913929,67cyclictest0-21swapper/2811:50:2321
226529913933,78cyclictest0-21swapper/1612:06:558
226529913917,16cyclictest0-21swapper/1611:37:008
225999913952,63cyclictest0-21swapper/412:19:2126
227019913829,68cyclictest0-21swapper/2811:35:2421
22701991380,82cyclictest0-21swapper/2808:30:1321
225999913828,73cyclictest0-21swapper/410:28:1326
226879913714,69cyclictest0-21swapper/2410:37:3517
226529913741,57cyclictest0-21swapper/1611:23:278
226529913741,57cyclictest0-21swapper/1611:23:268
226529913718,42cyclictest0-21swapper/1609:10:428
22599991370,85cyclictest0-21swapper/408:40:1826
329891136128,6phc2sys0-21swapper/207:07:0512
329891136128,6phc2sys0-21swapper/207:07:0512
22701991361,78cyclictest0-21swapper/2809:16:5821
225999913649,59cyclictest0-21swapper/409:26:4926
225999913630,67cyclictest0-21swapper/411:37:0826
22701991350,79cyclictest0-21swapper/2811:20:2721
22701991350,79cyclictest0-21swapper/2811:20:2621
22701991350,75cyclictest0-21swapper/2808:05:2321
225999913557,60cyclictest0-21swapper/411:18:2626
225999913527,65cyclictest0-21swapper/409:00:0126
225909913523,69cyclictest0-21swapper/212:26:5912
227019913431,66cyclictest0-21swapper/2811:00:0421
227019913428,64cyclictest0-21swapper/2810:31:4821
22701991340,80cyclictest0-21swapper/2808:35:1821
226529913429,61cyclictest0-21swapper/1611:42:118
226489913433,60cyclictest0-21swapper/1509:10:337
226489913429,69cyclictest0-21swapper/1508:15:327
226489913428,67cyclictest0-21swapper/1507:19:577
225999913452,61cyclictest0-21swapper/410:13:2626
225999913452,56cyclictest0-21swapper/411:44:2526
225999913447,56cyclictest0-21swapper/409:50:5526
225999913430,65cyclictest0-21swapper/412:00:1326
225999913428,64cyclictest0-21swapper/410:51:4326
225999913425,64cyclictest0-21swapper/409:58:4726
225909913456,67cyclictest0-21swapper/209:37:4912
225909913451,60cyclictest0-21swapper/210:16:4912
225909913449,58cyclictest0-21swapper/211:29:4912
225909913449,58cyclictest0-21swapper/211:29:4912
225909913448,58cyclictest0-21swapper/209:56:1712
227019913337,58cyclictest0-21swapper/2811:45:3321
227019913327,69cyclictest0-21swapper/2812:13:2121
226879913314,78cyclictest0-21swapper/2409:18:2817
226489913329,66cyclictest0-21swapper/1511:14:317
226489913326,66cyclictest0-21swapper/1509:25:007
225999913340,60cyclictest0-21swapper/411:55:1926
225999913328,71cyclictest0-21swapper/412:08:4026
225999913328,68cyclictest0-21swapper/410:31:2326
225999913327,64cyclictest0-21swapper/411:00:1526
225999913325,64cyclictest0-21swapper/407:45:3726
225999913321,65cyclictest0-21swapper/411:07:4526
225999913321,65cyclictest0-21swapper/411:07:4426
225909913325,64cyclictest0-21swapper/208:37:2912
226489913228,67cyclictest0-21swapper/1511:08:397
226489913228,67cyclictest0-21swapper/1511:08:397
226489913226,64cyclictest0-21swapper/1511:36:587
22622991320,79cyclictest0-21swapper/911:48:0731
225999913243,59cyclictest0-21swapper/410:07:3226
225999913230,68cyclictest0-21swapper/409:23:4726
225999913229,67cyclictest0-21swapper/408:21:2526
225999913228,69cyclictest0-21swapper/409:40:1626
225999913227,67cyclictest0-21swapper/408:30:2026
225999913227,65cyclictest0-21swapper/408:54:5026
225999913227,63cyclictest0-21swapper/410:46:2426
225909913231,72cyclictest0-21swapper/210:20:3712
225909913229,70cyclictest0-21swapper/209:31:2612
225909913227,66cyclictest0-21swapper/212:35:0112
225909913227,62cyclictest0-21swapper/207:30:2512
227019913139,67cyclictest0-21swapper/2809:06:1421
227019913128,64cyclictest0-21swapper/2810:24:5021
227019913127,66cyclictest0-21swapper/2812:30:2721
227019913126,60cyclictest0-21swapper/2811:30:0321
227019913121,64cyclictest0-21swapper/2809:20:4221
22701991311,82cyclictest0-21swapper/2812:04:4521
22701991311,78cyclictest0-21swapper/2810:25:0521
226489913141,69cyclictest0-21swapper/1512:18:407
226489913130,69cyclictest0-21swapper/1507:55:127
226489913128,69cyclictest0-21swapper/1509:39:567
226489913127,71cyclictest0-21swapper/1512:24:327
226489913127,70cyclictest0-21swapper/1509:19:077
226489913127,68cyclictest0-21swapper/1508:39:337
226489913126,62cyclictest0-21swapper/1511:20:257
226489913126,62cyclictest0-21swapper/1511:20:247
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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