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2026-03-12 - 07:23
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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 Thu Mar 12, 2026 00:49:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913150,307ptp4l0-21swapper/119:09:591
124659929294,1cyclictest151rcu_preempt00:39:1813
124959926266,3cyclictest151rcu_preempt00:23:5220
123699922225,3cyclictest151rcu_preempt23:36:430
1239499209117,56cyclictest0-21swapper/422:03:1526
110842185178,6sleep00-21swapper/019:08:240
124469917523,152cyclictest0-21swapper/1600:19:568
124469917523,152cyclictest0-21swapper/1600:03:108
124469917523,124cyclictest0-21swapper/1622:58:108
124469917423,109cyclictest0-21swapper/1623:25:178
124469917423,109cyclictest0-21swapper/1621:30:178
1249299170170,0cyclictest173-21ksoftirqd/2623:32:0019
124469917019,125cyclictest0-21swapper/1623:08:398
330891154145,7phc2sys0-21swapper/219:08:5512
124469915323,87cyclictest0-21swapper/1622:51:358
124469915218,102cyclictest0-21swapper/1623:31:388
124469914723,66cyclictest0-21swapper/1623:50:218
124139914552,52cyclictest0-21swapper/822:50:2130
12398991430,85cyclictest0-21swapper/519:40:1527
12398991430,85cyclictest0-21swapper/519:40:1527
124659914224,57cyclictest0-21swapper/2000:18:1213
12373991410,89cyclictest0-21swapper/121:16:221
124999914046,60cyclictest0-21swapper/2822:05:1621
12499991400,84cyclictest0-21swapper/2822:35:1121
12499991400,80cyclictest0-21swapper/2819:54:5221
12499991400,80cyclictest0-21swapper/2819:54:5221
124999913950,56cyclictest0-21swapper/2800:00:1121
124999913949,58cyclictest0-21swapper/2800:33:1621
12499991390,86cyclictest0-21swapper/2821:59:0521
124999913828,68cyclictest0-21swapper/2821:05:2421
124929913836,67cyclictest0-21swapper/2622:10:1419
124469913823,64cyclictest0-21swapper/1621:36:568
12413991380,84cyclictest0-21swapper/823:09:0330
12373991381,86cyclictest0-21swapper/122:28:311
124999913729,68cyclictest0-21swapper/2820:11:2621
124999913729,68cyclictest0-21swapper/2820:11:2621
124999913726,69cyclictest0-21swapper/2821:21:5821
12499991370,85cyclictest0-21swapper/2823:20:2121
12499991370,84cyclictest0-21swapper/2823:09:3921
124139913731,95cyclictest0-21swapper/800:30:1830
12373991371,85cyclictest0-21swapper/122:35:141
12373991370,87cyclictest0-21swapper/121:29:291
12373991370,85cyclictest0-21swapper/123:15:221
12413991360,83cyclictest0-21swapper/822:05:1230
124999913550,65cyclictest0-21swapper/2820:29:1521
12499991350,81cyclictest0-21swapper/2820:48:1821
12385991353,93cyclictest0-21swapper/321:45:3323
12385991353,126cyclictest0-21swapper/321:31:3523
124999913452,60cyclictest0-21swapper/2821:50:4921
124999913430,68cyclictest0-21swapper/2823:49:5821
124999913416,73cyclictest0-21swapper/2800:35:2721
12499991340,84cyclictest0-21swapper/2819:29:1321
12499991340,84cyclictest0-21swapper/2819:29:1321
12499991340,79cyclictest0-21swapper/2819:15:2021
12499991340,79cyclictest0-21swapper/2819:15:2021
124139913446,58cyclictest0-21swapper/822:31:4930
12385991343,81cyclictest0-21swapper/323:45:1423
124999913328,61cyclictest0-21swapper/2822:59:4621
124999913328,59cyclictest0-21swapper/2819:35:5221
124999913328,59cyclictest0-21swapper/2819:35:5221
124999913326,67cyclictest0-21swapper/2823:01:2221
124999913317,76cyclictest0-21swapper/2819:24:2421
124999913317,76cyclictest0-21swapper/2819:24:2421
12499991330,79cyclictest0-21swapper/2800:17:1421
124999913241,56cyclictest0-21swapper/2821:47:0821
124999913229,76cyclictest0-21swapper/2823:55:2221
12499991320,82cyclictest0-21swapper/2821:29:4221
124929913224,73cyclictest0-21swapper/2623:44:1819
124139913251,55cyclictest0-21swapper/823:34:2530
124139913246,66cyclictest0-21swapper/820:00:2530
124139913246,66cyclictest0-21swapper/820:00:2530
124139913229,67cyclictest0-21swapper/821:20:1830
124999913130,67cyclictest0-21swapper/2821:34:4721
124999913126,86cyclictest0-21swapper/2800:09:4421
124139913128,68cyclictest0-21swapper/821:40:2230
124139913128,67cyclictest0-21swapper/821:25:2230
12385991313,127cyclictest0-21swapper/322:24:3023
124999913036,68cyclictest0-21swapper/2823:51:3721
124999913031,67cyclictest0-21swapper/2822:22:0321
124999913029,59cyclictest0-21swapper/2821:38:0021
124999913020,71cyclictest0-21swapper/2800:27:5621
12499991300,76cyclictest0-21swapper/2823:40:2321
12474991308,106cyclictest151rcu_preempt00:08:4915
124139913030,71cyclictest0-21swapper/822:36:1030
124139913028,70cyclictest0-21swapper/822:40:4430
124139913028,68cyclictest0-21swapper/821:15:0130
124139913028,68cyclictest0-21swapper/800:18:3130
124139913027,68cyclictest0-21swapper/823:02:3630
124139913027,68cyclictest0-21swapper/821:47:1730
124139913026,67cyclictest0-21swapper/819:20:2030
124139913026,67cyclictest0-21swapper/819:20:2030
124999912931,72cyclictest0-21swapper/2823:35:1921
12499991290,75cyclictest0-21swapper/2822:15:5721
124749912911,106cyclictest151rcu_preempt00:39:4915
124139912942,69cyclictest0-21swapper/820:47:4630
124139912931,76cyclictest0-21swapper/800:39:0530
124139912930,74cyclictest0-21swapper/822:17:1030
124139912929,72cyclictest0-21swapper/819:15:0230
124139912929,72cyclictest0-21swapper/819:15:0230
124139912927,68cyclictest0-21swapper/821:55:5030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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