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2026-08-26 - 04:43
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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 Aug 26, 2026 00:49:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330891214206,6phc2sys0-21swapper/219:07:3412
145749917031,107cyclictest0-21swapper/2900:15:0722
144119916850,63cyclictest0-21swapper/521:06:0227
144119916850,63cyclictest0-21swapper/521:06:0227
145749916528,136cyclictest0-21swapper/2900:01:1222
145749915936,92cyclictest0-21swapper/2922:06:5022
145499915629,79cyclictest0-21swapper/2622:30:1819
145219915418,133cyclictest0-21swapper/2223:19:5615
145499915122,95cyclictest0-21swapper/2622:27:2819
3273911490,141ptp4l0-21swapper/119:06:251
14574991430,84cyclictest0-21swapper/2922:16:5922
14574991421,82cyclictest0-21swapper/2923:55:2022
14521991420,82cyclictest0-21swapper/2222:40:2315
145499914148,57cyclictest0-21swapper/2620:54:0519
145499914148,57cyclictest0-21swapper/2620:54:0519
14521991410,82cyclictest0-21swapper/2223:26:5415
145499913953,58cyclictest0-21swapper/2623:29:3719
14521991380,84cyclictest0-21swapper/2222:09:5515
14481991386,96cyclictest0-21swapper/1700:00:199
145499913751,56cyclictest0-21swapper/2621:22:2519
14481991370,84cyclictest0-21swapper/1700:05:039
145219913634,50cyclictest0-21swapper/2222:25:2515
145499913529,70cyclictest0-21swapper/2623:20:0119
145499913528,73cyclictest0-21swapper/2619:11:1319
145499913527,66cyclictest0-21swapper/2621:50:1219
145749913451,55cyclictest0-21swapper/2921:25:1222
145749913451,55cyclictest0-21swapper/2921:25:1122
14559991340,88cyclictest0-21swapper/2723:59:3520
145499913455,65cyclictest0-21swapper/2620:40:1319
145499913455,65cyclictest0-21swapper/2620:40:1219
145499913429,72cyclictest0-21swapper/2600:09:4219
145499913427,67cyclictest0-21swapper/2622:56:5119
145499913427,67cyclictest0-21swapper/2600:10:1419
145749913329,73cyclictest0-21swapper/2922:04:4122
145749913329,66cyclictest0-21swapper/2920:52:0122
145749913329,66cyclictest0-21swapper/2920:52:0022
145749913327,71cyclictest0-21swapper/2920:00:1022
145499913353,69cyclictest0-21swapper/2621:28:1819
145499913353,69cyclictest0-21swapper/2621:28:1819
145499913349,70cyclictest0-21swapper/2623:14:0819
145499913327,70cyclictest0-21swapper/2600:03:5119
145499913327,60cyclictest0-21swapper/2619:40:3819
145219913350,68cyclictest0-21swapper/2200:21:2415
145219913340,62cyclictest0-21swapper/2200:03:1415
14559991320,88cyclictest0-21swapper/2721:40:0520
14559991320,88cyclictest0-21swapper/2721:40:0420
145499913250,58cyclictest0-21swapper/2600:22:0019
145499913239,66cyclictest0-21swapper/2621:44:2119
145499913239,66cyclictest0-21swapper/2621:44:2019
145499913231,75cyclictest0-21swapper/2623:35:0019
145499913228,68cyclictest0-21swapper/2623:00:2819
145219913247,59cyclictest0-21swapper/2223:40:4715
145219913229,63cyclictest0-21swapper/2219:45:3815
145119913235,95cyclictest0-21swapper/2120:00:2914
145749913129,65cyclictest0-21swapper/2920:07:4022
145749913127,66cyclictest0-21swapper/2919:10:2922
145499913131,73cyclictest0-21swapper/2621:37:5519
145499913131,73cyclictest0-21swapper/2621:37:5519
145219913128,62cyclictest0-21swapper/2200:10:4315
145119913135,95cyclictest0-21swapper/2122:44:0714
145119913133,97cyclictest0-21swapper/2122:17:5014
14481991310,80cyclictest0-21swapper/1719:47:419
145749913049,58cyclictest0-21swapper/2923:00:3622
145749913033,78cyclictest0-21swapper/2900:26:5222
145499913030,67cyclictest0-21swapper/2622:14:4819
145499913028,71cyclictest0-21swapper/2622:48:1119
145219913040,68cyclictest0-21swapper/2223:31:4115
145219913029,67cyclictest0-21swapper/2223:14:3515
145219913028,72cyclictest0-21swapper/2219:37:0515
145219913028,70cyclictest0-21swapper/2220:05:2515
145219913025,64cyclictest0-21swapper/2200:36:3815
145119913035,73cyclictest0-21swapper/2100:00:3214
145749912956,62cyclictest0-21swapper/2923:53:1122
145749912930,74cyclictest0-21swapper/2900:38:3722
145749912929,73cyclictest0-21swapper/2921:22:2922
145749912929,68cyclictest0-21swapper/2922:23:5622
145749912929,68cyclictest0-21swapper/2921:33:4122
145749912929,68cyclictest0-21swapper/2921:33:4122
145749912928,66cyclictest0-21swapper/2921:54:0022
145749912927,68cyclictest0-21swapper/2923:23:3422
145749912927,67cyclictest0-21swapper/2923:47:1822
145749912927,66cyclictest0-21swapper/2921:17:0722
145749912927,66cyclictest0-21swapper/2921:17:0722
145749912927,64cyclictest0-21swapper/2921:35:5022
145749912927,64cyclictest0-21swapper/2921:35:5022
145749912925,60cyclictest0-21swapper/2919:20:0622
14574991290,77cyclictest0-21swapper/2922:40:3122
145499912928,68cyclictest0-21swapper/2620:10:0119
145499912927,67cyclictest0-21swapper/2623:54:4419
145499912923,58cyclictest0-21swapper/2621:46:2319
145219912933,63cyclictest0-21swapper/2200:29:2515
145219912928,65cyclictest0-21swapper/2223:00:0915
145219912927,61cyclictest0-21swapper/2221:20:4515
145749912828,71cyclictest0-21swapper/2923:12:0222
145749912828,71cyclictest0-21swapper/2921:15:0022
145749912828,71cyclictest0-21swapper/2921:14:5922
145749912828,69cyclictest0-21swapper/2923:07:4522
145749912828,69cyclictest0-21swapper/2900:06:3322
145749912818,82cyclictest0-21swapper/2922:38:5422
14574991280,75cyclictest0-21swapper/2900:14:3422
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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