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2025-02-15 - 11:51
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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 Feb 15, 2025 00:50:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3033299339141,2cyclictest151rcu_preempt23:27:3122
3033299339141,2cyclictest151rcu_preempt23:27:3022
2482912210,212ptp4l0-21swapper/119:09:101
3034899198126,1cyclictest151rcu_preempt23:33:0725
3034899198126,1cyclictest151rcu_preempt23:33:0725
301759918251,92cyclictest0-21swapper/821:31:1430
301759918151,83cyclictest0-21swapper/823:26:2830
301759918151,83cyclictest0-21swapper/823:26:2830
301759917949,86cyclictest0-21swapper/821:15:1430
301549917533,108cyclictest0-21swapper/522:47:1727
301549917533,108cyclictest0-21swapper/522:47:1627
301549917532,141cyclictest0-21swapper/500:09:3427
301549917432,107cyclictest0-21swapper/522:17:5327
301549917432,107cyclictest0-21swapper/522:17:5327
301759916732,133cyclictest0-21swapper/800:30:2030
303159916633,95cyclictest0-21swapper/2723:25:3620
303159916633,95cyclictest0-21swapper/2723:25:3520
303159916531,133cyclictest0-21swapper/2723:16:3020
303159916531,133cyclictest0-21swapper/2723:16:3020
301759916532,102cyclictest0-21swapper/821:27:1330
301759916532,102cyclictest0-21swapper/821:27:1330
301549916523,108cyclictest0-21swapper/523:35:3827
301549916523,108cyclictest0-21swapper/523:35:3827
301549916423,102cyclictest0-21swapper/523:27:5327
301549916423,102cyclictest0-21swapper/523:27:5327
301549916328,87cyclictest0-21swapper/521:40:2827
301759915724,90cyclictest0-21swapper/821:00:1530
301549915361,62cyclictest46-21ksoftirqd/522:38:2827
301549915361,62cyclictest46-21ksoftirqd/522:38:2827
301549915135,83cyclictest0-21swapper/521:54:5427
30283991500,88cyclictest0-21swapper/2323:58:0016
30283991500,88cyclictest0-21swapper/2323:58:0016
301759914833,65cyclictest0-21swapper/800:00:5230
301759914833,65cyclictest0-21swapper/800:00:5230
301549914525,78cyclictest0-21swapper/521:35:4027
30307991430,86cyclictest0-21swapper/2600:07:1519
301549914317,122cyclictest151rcu_preempt00:05:0127
301549914317,122cyclictest151rcu_preempt00:05:0027
303079914258,60cyclictest0-21swapper/2619:35:1519
302289914244,86cyclictest0-21swapper/1623:14:118
302289914244,86cyclictest0-21swapper/1623:14:118
30175991410,85cyclictest0-21swapper/823:02:0530
30175991410,85cyclictest0-21swapper/823:02:0530
303079914053,56cyclictest0-21swapper/2600:36:3919
303079914036,66cyclictest0-21swapper/2622:11:1719
30307991400,81cyclictest0-21swapper/2622:15:0219
30307991400,81cyclictest0-21swapper/2622:15:0119
303079913951,62cyclictest0-21swapper/2622:57:4719
303079913951,62cyclictest0-21swapper/2622:57:4719
303079913928,70cyclictest0-21swapper/2623:45:1919
303079913926,70cyclictest0-21swapper/2623:03:4019
303079913926,70cyclictest0-21swapper/2623:03:3919
303079913852,58cyclictest0-21swapper/2621:50:2719
303079913847,60cyclictest0-21swapper/2600:31:5019
303079913846,61cyclictest0-21swapper/2621:15:1019
303079913829,68cyclictest0-21swapper/2600:03:5319
303079913829,68cyclictest0-21swapper/2600:03:5319
303079913829,67cyclictest0-21swapper/2622:52:2619
303079913829,67cyclictest0-21swapper/2622:52:2619
30307991380,80cyclictest0-21swapper/2621:32:4819
301549913872,65cyclictest0-21swapper/521:16:5727
303229913737,70cyclictest0-21swapper/2822:20:1821
303229913737,70cyclictest0-21swapper/2822:20:1821
30315991370,88cyclictest0-21swapper/2700:19:2220
303079913745,56cyclictest0-21swapper/2620:55:1419
303079913742,58cyclictest0-21swapper/2600:14:4319
30307991370,83cyclictest0-21swapper/2619:30:2819
303079913544,50cyclictest0-21swapper/2620:08:2319
303079913530,69cyclictest0-21swapper/2600:23:4819
303079913525,66cyclictest0-21swapper/2622:21:4819
303079913525,66cyclictest0-21swapper/2622:21:4819
303079913451,67cyclictest0-21swapper/2622:41:3619
303079913451,67cyclictest0-21swapper/2622:41:3619
303079913428,63cyclictest0-21swapper/2622:28:1419
303079913428,63cyclictest0-21swapper/2622:28:1319
303079913427,64cyclictest0-21swapper/2621:37:3719
301759913426,72cyclictest0-21swapper/819:35:1730
301759913425,65cyclictest0-21swapper/820:15:2330
303229913335,63cyclictest0-21swapper/2800:37:4821
303079913327,69cyclictest0-21swapper/2623:18:0719
303079913327,69cyclictest0-21swapper/2623:18:0719
303079913326,66cyclictest0-21swapper/2620:00:0719
303079913325,67cyclictest0-21swapper/2622:09:0919
303079913325,65cyclictest0-21swapper/2621:40:1719
302839913327,68cyclictest0-21swapper/2323:25:2416
302839913327,68cyclictest0-21swapper/2323:25:2416
30283991330,83cyclictest0-21swapper/2321:38:0416
301759913325,64cyclictest0-21swapper/821:22:0930
303229913227,65cyclictest0-21swapper/2821:50:1621
303079913237,64cyclictest0-21swapper/2622:00:2619
303079913237,64cyclictest0-21swapper/2622:00:2619
303079913229,62cyclictest0-21swapper/2623:08:2919
303079913229,62cyclictest0-21swapper/2623:08:2819
303079913228,64cyclictest0-21swapper/2623:41:3719
303079913228,64cyclictest0-21swapper/2623:41:3619
302839913251,61cyclictest0-21swapper/2323:16:5116
302839913251,61cyclictest0-21swapper/2323:16:5116
302839913243,59cyclictest0-21swapper/2319:28:1616
302839913227,68cyclictest0-21swapper/2322:49:4216
302839913227,68cyclictest0-21swapper/2322:49:4116
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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