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2026-03-29 - 01:41
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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 Sat Mar 28, 2026 12:49:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
260399361163,1cyclictest151rcu_preempt11:50:1226
260399361163,1cyclictest151rcu_preempt09:25:1726
3273911830,175ptp4l0-21swapper/107:07:381
330891175166,7phc2sys0-21swapper/207:05:2212
2603991657,154cyclictest0-21swapper/408:55:2126
323262161153,6sleep100-21swapper/1007:05:202
2603991597,131cyclictest0-21swapper/408:00:2026
2603991587,135cyclictest0-21swapper/411:56:3026
2603991587,108cyclictest0-21swapper/412:30:1426
2603991577,109cyclictest0-21swapper/412:35:0226
2603991547,107cyclictest0-21swapper/409:59:5426
2603991518,142cyclictest0-21swapper/410:20:2126
25969914749,74cyclictest0-21swapper/310:03:2523
25969914749,74cyclictest0-21swapper/310:03:2523
26709914626,119cyclictest0-21swapper/1412:30:366
26709914625,68cyclictest0-21swapper/1409:16:346
2603991467,100cyclictest0-21swapper/408:09:4926
2754991420,85cyclictest0-21swapper/2809:35:0121
2603991427,97cyclictest0-21swapper/411:40:0726
27549914174,49cyclictest0-21swapper/2808:40:1721
2754991410,82cyclictest0-21swapper/2811:40:2321
27299914124,78cyclictest0-21swapper/2508:30:1618
25869914121,78cyclictest0-21swapper/107:51:561
2729991400,84cyclictest0-21swapper/2512:36:0718
26709914034,67cyclictest0-21swapper/1412:04:396
27549913929,65cyclictest0-21swapper/2809:55:1021
25929913953,57cyclictest0-21swapper/212:23:5912
25869913953,58cyclictest0-21swapper/112:34:391
27549913832,67cyclictest0-21swapper/2812:02:4721
27549913830,64cyclictest0-21swapper/2811:57:2621
27549913828,65cyclictest0-21swapper/2811:35:1721
27549913828,65cyclictest0-21swapper/2811:35:1721
2754991381,80cyclictest0-21swapper/2811:20:2121
2754991381,80cyclictest0-21swapper/2811:20:2121
2603991388,80cyclictest0-21swapper/411:45:2226
2603991388,80cyclictest0-21swapper/411:45:2226
27549913746,62cyclictest0-21swapper/2811:32:3821
27549913746,62cyclictest0-21swapper/2811:32:3721
27549913731,70cyclictest0-21swapper/2810:15:2421
27549913731,67cyclictest0-21swapper/2809:51:3721
26709913741,63cyclictest0-21swapper/1410:24:276
26709913725,65cyclictest0-21swapper/1409:40:376
2603991377,101cyclictest0-21swapper/412:06:0126
27549913630,63cyclictest0-21swapper/2809:41:5821
2754991361,79cyclictest0-21swapper/2810:05:1521
2754991361,79cyclictest0-21swapper/2810:05:1521
27379913630,72cyclictest0-21swapper/2611:34:4019
27379913630,72cyclictest0-21swapper/2611:34:4019
26709913632,66cyclictest0-21swapper/1410:42:066
26709913632,66cyclictest0-21swapper/1410:42:066
26709913629,69cyclictest0-21swapper/1408:30:056
26709913627,66cyclictest0-21swapper/1412:05:286
26709913626,65cyclictest0-21swapper/1411:47:186
26709913626,65cyclictest0-21swapper/1411:47:186
25929913652,56cyclictest0-21swapper/211:47:2212
25929913652,56cyclictest0-21swapper/211:47:2212
25869913647,63cyclictest0-21swapper/110:04:151
25869913647,63cyclictest0-21swapper/110:04:151
27549913530,68cyclictest0-21swapper/2809:17:2121
27549913528,66cyclictest0-21swapper/2809:45:1321
27379913526,64cyclictest0-21swapper/2609:44:0219
26709913547,60cyclictest0-21swapper/1409:58:006
25929913542,57cyclictest0-21swapper/212:25:0312
25869913551,55cyclictest0-21swapper/111:24:061
25869913551,55cyclictest0-21swapper/111:24:061
25869913541,62cyclictest0-21swapper/109:39:201
27549913429,61cyclictest0-21swapper/2809:05:2321
27379913431,68cyclictest0-21swapper/2610:02:1219
27379913431,68cyclictest0-21swapper/2610:02:1219
27379913430,74cyclictest0-21swapper/2612:14:4619
27379913430,73cyclictest0-21swapper/2610:43:2219
27379913430,73cyclictest0-21swapper/2610:43:2219
27379913429,71cyclictest0-21swapper/2608:45:1519
27379913429,70cyclictest0-21swapper/2610:08:3719
27379913429,70cyclictest0-21swapper/2610:08:3619
27379913427,62cyclictest0-21swapper/2608:30:1719
26709913429,69cyclictest0-21swapper/1410:05:136
26709913429,69cyclictest0-21swapper/1410:05:136
26709913429,68cyclictest0-21swapper/1411:10:256
26709913429,68cyclictest0-21swapper/1411:10:256
26709913422,73cyclictest0-21swapper/1410:45:506
26709913422,73cyclictest0-21swapper/1410:45:506
2592991340,83cyclictest0-21swapper/209:01:2512
25869913428,64cyclictest0-21swapper/110:55:141
25869913428,64cyclictest0-21swapper/110:55:141
27549913343,56cyclictest0-21swapper/2809:35:5021
27549913331,70cyclictest0-21swapper/2811:08:1721
27549913331,70cyclictest0-21swapper/2811:08:1721
27549913331,67cyclictest0-21swapper/2807:55:2321
27549913331,66cyclictest0-21swapper/2812:26:2021
27549913330,65cyclictest0-21swapper/2808:10:2121
27549913329,63cyclictest0-21swapper/2807:10:0121
2754991330,78cyclictest0-21swapper/2807:30:1621
27379913330,69cyclictest0-21swapper/2609:54:1119
27379913328,69cyclictest0-21swapper/2610:52:2719
27379913328,69cyclictest0-21swapper/2610:52:2719
26819913321,51cyclictest0-21swapper/1612:35:138
26709913329,74cyclictest0-21swapper/1410:34:056
26709913329,74cyclictest0-21swapper/1410:34:056
26709913328,71cyclictest0-21swapper/1412:19:216
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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