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2026-09-09 - 12:03
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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 Sep 09, 2026 00:49:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1241799347149,1cyclictest151rcu_preempt23:58:2121
3273913060,298ptp4l0-21swapper/119:06:481
3273913060,298ptp4l0-21swapper/119:06:471
123339925352,1cyclictest151rcu_preempt00:36:454
79292212202,7sleep180-21swapper/1819:05:1710
79292212202,7sleep180-21swapper/1819:05:1610
122829916622,98cyclictest0-21swapper/222:08:0112
122829916422,116cyclictest0-21swapper/200:08:3112
122829916422,112cyclictest0-21swapper/223:00:2512
122829916422,112cyclictest0-21swapper/223:00:2512
122829916122,102cyclictest0-21swapper/222:40:0512
123219915619,95cyclictest0-21swapper/1023:55:352
123219915619,82cyclictest0-21swapper/1022:09:452
123219915519,100cyclictest0-21swapper/1021:15:152
122829915522,123cyclictest0-21swapper/200:30:1112
123219915419,97cyclictest0-21swapper/1000:05:442
123789914896,51cyclictest0-21swapper/2019:20:1913
122929914645,59cyclictest0-21swapper/421:26:2126
124179914510,133cyclictest0-21swapper/2822:12:3021
124179914410,94cyclictest0-21swapper/2800:22:5721
124179914310,85cyclictest0-21swapper/2822:20:0021
124179914110,131cyclictest0-21swapper/2820:35:1721
123839914130,86cyclictest0-21swapper/2122:30:1514
123839914124,82cyclictest0-21swapper/2119:41:1814
123889914031,72cyclictest0-21swapper/2222:00:2115
12383991401,83cyclictest0-21swapper/2123:25:1914
12383991401,83cyclictest0-21swapper/2123:25:1914
124039913914,120cyclictest0-21swapper/2520:58:2318
123889913931,67cyclictest0-21swapper/2221:35:4015
123889913930,65cyclictest0-21swapper/2222:41:2915
123839913930,70cyclictest0-21swapper/2119:45:0314
12292991390,85cyclictest0-21swapper/419:50:0126
123889913846,57cyclictest0-21swapper/2200:32:4015
123889913832,69cyclictest0-21swapper/2200:18:4715
123889913829,69cyclictest0-21swapper/2221:00:1215
12383991371,80cyclictest0-21swapper/2119:10:2314
124179913610,96cyclictest0-21swapper/2823:37:3021
124179913610,96cyclictest0-21swapper/2823:37:3021
123889913629,65cyclictest0-21swapper/2223:27:2715
123889913629,65cyclictest0-21swapper/2223:27:2715
123839913628,77cyclictest0-21swapper/2122:04:0314
123219913647,55cyclictest0-21swapper/1000:35:092
12272991367,125cyclictest0-21swapper/000:10:250
123889913541,60cyclictest0-21swapper/2222:30:1615
12388991350,80cyclictest0-21swapper/2220:50:4615
123219913549,56cyclictest0-21swapper/1022:49:182
124039913415,38cyclictest0-21swapper/2522:45:1718
12383991341,92cyclictest143-21ksoftirqd/2123:24:1414
12383991341,92cyclictest143-21ksoftirqd/2123:24:1414
123219913454,64cyclictest0-21swapper/1022:53:362
123219913453,64cyclictest0-21swapper/1020:54:572
123219913451,52cyclictest0-21swapper/1022:42:222
122929913441,68cyclictest0-21swapper/421:48:0526
124179913310,122cyclictest0-21swapper/2822:29:3521
123889913330,61cyclictest0-21swapper/2223:46:2515
123889913330,61cyclictest0-21swapper/2223:46:2415
123889913329,67cyclictest0-21swapper/2221:40:0215
123219913353,60cyclictest0-21swapper/1021:37:102
123219913352,59cyclictest0-21swapper/1000:32:592
124179913210,90cyclictest0-21swapper/2820:06:2421
124039913215,89cyclictest0-21swapper/2521:49:1018
123889913230,67cyclictest0-21swapper/2219:40:2015
123889913230,64cyclictest0-21swapper/2200:25:0515
123889913229,63cyclictest0-21swapper/2200:00:3515
123889913229,63cyclictest0-21swapper/2200:00:3515
123889913228,64cyclictest0-21swapper/2223:00:0115
12388991320,77cyclictest0-21swapper/2223:40:1715
12388991320,77cyclictest0-21swapper/2223:40:1715
123219913236,59cyclictest0-21swapper/1023:20:042
123219913236,59cyclictest0-21swapper/1023:20:042
122929913244,57cyclictest0-21swapper/423:10:2426
122929913244,57cyclictest0-21swapper/423:10:2426
12272991328,106cyclictest0-21swapper/023:18:180
12272991328,106cyclictest0-21swapper/023:18:180
12272991327,121cyclictest0-21swapper/020:50:190
124039913115,108cyclictest0-21swapper/2500:01:4218
124039913115,108cyclictest0-21swapper/2500:01:4218
123889913131,64cyclictest0-21swapper/2200:39:5915
123889913128,61cyclictest0-21swapper/2222:45:1415
123839913113,74cyclictest0-21swapper/2119:38:3814
123219913120,67cyclictest0-21swapper/1022:04:572
122829913123,70cyclictest0-21swapper/223:18:3412
122829913123,70cyclictest0-21swapper/223:18:3312
12272991317,35cyclictest0-21swapper/023:21:000
12272991317,35cyclictest0-21swapper/023:20:590
124219913029,97cyclictest0-21swapper/2922:14:0622
124219913029,66cyclictest0-21swapper/2922:56:2222
124219913028,85cyclictest0-21swapper/2900:26:2322
124219913028,101cyclictest0-21swapper/2923:51:3822
124219913028,101cyclictest0-21swapper/2923:51:3822
124179913010,80cyclictest0-21swapper/2821:54:2221
124039913014,89cyclictest0-21swapper/2500:37:0018
123889913031,65cyclictest0-21swapper/2200:14:2415
123889913030,69cyclictest0-21swapper/2221:05:1815
123889913028,60cyclictest0-21swapper/2221:29:2015
123219913053,59cyclictest0-21swapper/1021:40:532
123219913045,63cyclictest0-21swapper/1023:41:092
123219913045,63cyclictest0-21swapper/1023:41:092
123219913029,74cyclictest0-21swapper/1000:00:552
123219913029,74cyclictest0-21swapper/1000:00:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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