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2026-08-16 - 06:55
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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 Aug 16, 2026 00:49:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913000,292ptp4l0-21swapper/119:07:031
60089925455,2cyclictest151rcu_preempt21:20:2020
602399192191,0cyclictest0-21swapper/2900:11:5622
58309919223,1cyclictest13-21ksoftirqd/022:03:480
5988991897,176cyclictest0-21swapper/2523:59:3518
59379917424,113cyclictest0-21swapper/1622:35:158
330891174165,6phc2sys0-21swapper/219:05:1812
6037991730,137cyclictest0-21swapper/3123:39:2225
5988991737,122cyclictest0-21swapper/2521:44:2018
6037991720,145cyclictest0-21swapper/3123:45:1425
6037991720,132cyclictest0-21swapper/3119:50:2225
6037991720,132cyclictest0-21swapper/3119:50:2125
59379917224,139cyclictest0-21swapper/1623:30:198
5988991667,102cyclictest0-21swapper/2521:20:1818
598199166165,0cyclictest161-21ksoftirqd/2423:35:1917
5988991657,122cyclictest0-21swapper/2523:54:1318
59379916524,93cyclictest0-21swapper/1623:58:428
59379916523,97cyclictest0-21swapper/1622:23:468
59379916517,126cyclictest0-21swapper/1623:45:208
5988991647,104cyclictest0-21swapper/2523:48:5318
6037991621,107cyclictest0-21swapper/3123:07:3425
6037991571,111cyclictest0-21swapper/3121:47:0825
6037991570,116cyclictest0-21swapper/3123:00:2125
5981991527,144cyclictest151rcu_preempt21:29:4317
59379915124,75cyclictest0-21swapper/1600:19:458
59379915082,67cyclictest112-21ksoftirqd/1622:34:478
5988991487,140cyclictest0-21swapper/2500:07:5818
5988991477,110cyclictest0-21swapper/2522:32:5118
59589914418,45cyclictest0-21swapper/2023:09:0513
59649914350,62cyclictest0-21swapper/2123:57:2214
59649914342,61cyclictest0-21swapper/2122:20:3814
60239914243,63cyclictest0-21swapper/2923:40:2422
6037991411,105cyclictest0-21swapper/3121:10:1325
60239914145,65cyclictest0-21swapper/2922:06:1922
59649914152,56cyclictest0-21swapper/2120:29:5614
59649914152,56cyclictest0-21swapper/2120:29:5514
59589914137,74cyclictest0-21swapper/2022:37:3513
58999914140,64cyclictest0-21swapper/1121:24:533
60239914050,61cyclictest0-21swapper/2923:55:5522
5981991400,84cyclictest0-21swapper/2423:04:5117
59649914027,65cyclictest0-21swapper/2123:18:2214
58999914040,63cyclictest0-21swapper/1121:00:013
58999914040,63cyclictest0-21swapper/1121:00:003
59649913949,58cyclictest0-21swapper/2122:51:0514
59649913945,56cyclictest0-21swapper/2119:35:1614
59649913945,56cyclictest0-21swapper/2119:35:1614
59649913932,67cyclictest0-21swapper/2100:22:4814
59649913932,66cyclictest0-21swapper/2123:09:4914
59649913931,70cyclictest0-21swapper/2123:10:5314
59649913928,67cyclictest0-21swapper/2100:02:4314
59649913928,66cyclictest0-21swapper/2100:09:4014
60239913854,66cyclictest0-21swapper/2923:21:1022
60239913844,58cyclictest0-21swapper/2921:47:0522
60239913842,59cyclictest0-21swapper/2921:35:5222
60239913829,68cyclictest0-21swapper/2920:04:4722
60239913829,68cyclictest0-21swapper/2920:04:4622
59649913846,57cyclictest0-21swapper/2121:13:4914
59649913828,64cyclictest0-21swapper/2120:34:4914
59649913828,64cyclictest0-21swapper/2120:34:4914
59649913823,70cyclictest0-21swapper/2100:19:1814
59589913851,54cyclictest0-21swapper/2023:33:3913
5926991380,79cyclictest0-21swapper/1420:15:286
5926991380,79cyclictest0-21swapper/1420:15:276
60239913751,62cyclictest0-21swapper/2900:16:4522
60239913749,57cyclictest0-21swapper/2923:38:4822
59649913756,59cyclictest0-21swapper/2122:49:2914
59649913742,64cyclictest0-21swapper/2121:40:0114
59649913730,69cyclictest0-21swapper/2121:50:4214
59649913730,68cyclictest0-21swapper/2121:01:0114
60239913647,58cyclictest0-21swapper/2922:51:4522
60239913647,57cyclictest0-21swapper/2900:00:1122
60239913629,70cyclictest0-21swapper/2922:38:2322
59649913657,67cyclictest0-21swapper/2122:15:4914
59649913655,64cyclictest0-21swapper/2100:38:0014
59649913648,62cyclictest0-21swapper/2121:46:2614
59649913646,56cyclictest0-21swapper/2120:00:3714
59649913646,56cyclictest0-21swapper/2120:00:3614
59649913629,66cyclictest0-21swapper/2122:29:1114
59649913628,67cyclictest0-21swapper/2100:29:2714
59589913648,61cyclictest0-21swapper/2000:15:2213
59589913644,61cyclictest0-21swapper/2021:36:3813
59589913640,61cyclictest0-21swapper/2021:47:3113
5958991360,81cyclictest0-21swapper/2022:09:1213
60239913561,66cyclictest0-21swapper/2919:18:0022
60239913545,66cyclictest0-21swapper/2922:30:5622
60239913545,63cyclictest0-21swapper/2923:28:3822
60239913542,60cyclictest0-21swapper/2923:12:0522
60239913526,60cyclictest0-21swapper/2919:35:5422
60239913526,60cyclictest0-21swapper/2919:35:5422
59649913543,53cyclictest0-21swapper/2120:50:1414
59649913543,53cyclictest0-21swapper/2120:50:1314
59649913535,65cyclictest0-21swapper/2100:32:3814
59649913528,67cyclictest0-21swapper/2122:10:2914
59649913527,63cyclictest0-21swapper/2120:56:1114
59649913527,63cyclictest0-21swapper/2120:56:1014
5964991350,80cyclictest0-21swapper/2121:25:0314
59589913525,64cyclictest0-21swapper/2000:23:2013
5926991350,84cyclictest0-21swapper/1422:45:246
60239913491,26cyclictest29222-21diskmemload21:58:0522
60239913457,68cyclictest0-21swapper/2900:25:1822
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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