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2026-08-03 - 20:52
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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 Mon Aug 03, 2026 12:49:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1754399368170,1cyclictest151rcu_preempt10:58:468
3273912890,280ptp4l0-21swapper/107:08:511
175439916723,143cyclictest0-21swapper/1611:10:148
175439916723,143cyclictest0-21swapper/1610:27:288
175439916324,99cyclictest0-21swapper/1608:41:198
174949915721,87cyclictest0-21swapper/1012:07:012
175439915623,80cyclictest0-21swapper/1612:22:228
174949915521,29cyclictest0-21swapper/1010:06:102
174579915241,63cyclictest0-21swapper/411:45:1826
176369915037,27cyclictest0-21swapper/2807:55:2321
176369915037,27cyclictest0-21swapper/2807:55:2221
174949914921,94cyclictest0-21swapper/1012:35:022
17566991480,88cyclictest0-21swapper/1909:36:5711
17517991470,88cyclictest0-21swapper/1311:11:265
17636991430,83cyclictest0-21swapper/2811:10:2421
174949914321,92cyclictest0-21swapper/1009:50:462
17651991410,85cyclictest0-21swapper/3009:49:5624
17651991410,83cyclictest0-21swapper/3010:32:4224
17566991410,85cyclictest0-21swapper/1908:29:3711
17566991410,85cyclictest0-21swapper/1908:29:3611
17566991410,83cyclictest0-21swapper/1907:13:4111
17566991410,83cyclictest0-21swapper/1907:13:4011
17651991400,82cyclictest0-21swapper/3009:34:5824
17517991400,88cyclictest0-21swapper/1310:24:565
17651991390,83cyclictest0-21swapper/3011:35:0024
17651991390,83cyclictest0-21swapper/3009:13:0524
17651991390,82cyclictest0-21swapper/3007:32:3724
17651991390,82cyclictest0-21swapper/3007:32:3624
17651991390,81cyclictest0-21swapper/3012:16:2424
175669913945,59cyclictest0-21swapper/1909:14:1511
175669913927,70cyclictest0-21swapper/1909:56:1111
175669913922,68cyclictest0-21swapper/1911:20:3711
17566991390,82cyclictest0-21swapper/1908:45:2311
175439913923,76cyclictest0-21swapper/1611:34:258
17651991380,83cyclictest0-21swapper/3009:40:5224
17651991380,80cyclictest0-21swapper/3008:00:2324
17651991380,80cyclictest0-21swapper/3008:00:2324
176369913820,91cyclictest0-21swapper/2811:43:0821
175669913856,57cyclictest0-21swapper/1912:25:1811
175669913828,65cyclictest0-21swapper/1911:13:4011
17651991370,82cyclictest0-21swapper/3012:05:1124
17651991370,80cyclictest0-21swapper/3012:36:1124
17651991370,80cyclictest0-21swapper/3012:36:1024
17651991370,80cyclictest0-21swapper/3010:46:3624
175669913752,58cyclictest0-21swapper/1911:00:3211
175669913729,68cyclictest0-21swapper/1910:00:5611
175669913728,70cyclictest0-21swapper/1908:08:4311
175669913728,70cyclictest0-21swapper/1908:08:4311
175669913727,66cyclictest0-21swapper/1911:55:5511
175669913726,71cyclictest0-21swapper/1908:22:0511
175669913726,71cyclictest0-21swapper/1908:22:0511
17566991370,83cyclictest0-21swapper/1908:55:1511
17566991370,83cyclictest0-21swapper/1907:35:3811
17566991370,83cyclictest0-21swapper/1907:35:3711
17566991370,81cyclictest0-21swapper/1907:46:1711
17566991370,81cyclictest0-21swapper/1907:46:1711
17566991370,80cyclictest0-21swapper/1909:24:0711
17566991370,80cyclictest0-21swapper/1907:30:1511
17566991370,80cyclictest0-21swapper/1907:30:1411
174949913721,69cyclictest0-21swapper/1010:50:002
17465991370,83cyclictest0-21swapper/610:45:0828
17636991360,85cyclictest0-21swapper/2810:17:4521
175669913629,68cyclictest0-21swapper/1907:21:1311
175669913629,68cyclictest0-21swapper/1907:21:1311
175669913626,67cyclictest0-21swapper/1907:25:1111
175669913626,67cyclictest0-21swapper/1907:25:1111
175669913616,70cyclictest0-21swapper/1909:07:3011
17566991360,84cyclictest0-21swapper/1911:50:1911
17651991350,82cyclictest0-21swapper/3009:37:4024
17566991350,81cyclictest0-21swapper/1912:20:2711
174729913546,58cyclictest0-21swapper/707:15:0829
174729913546,58cyclictest0-21swapper/707:15:0829
174659913526,68cyclictest0-21swapper/611:11:0428
17465991350,85cyclictest0-21swapper/611:23:4628
176519913429,67cyclictest0-21swapper/3008:05:1224
176519913429,67cyclictest0-21swapper/3008:05:1224
176519913428,68cyclictest0-21swapper/3009:28:0224
17651991340,81cyclictest0-21swapper/3010:27:5424
176369913426,77cyclictest0-21swapper/2811:18:2621
175669913424,73cyclictest0-21swapper/1912:10:1911
17566991340,82cyclictest0-21swapper/1910:57:0611
175439913418,43cyclictest0-21swapper/1610:04:298
174659913428,73cyclictest0-21swapper/612:18:4028
174659913428,70cyclictest0-21swapper/609:10:4728
174659913427,68cyclictest0-21swapper/612:32:0228
17465991340,83cyclictest0-21swapper/611:34:5128
17465991340,81cyclictest0-21swapper/609:55:2628
17465991340,80cyclictest0-21swapper/611:06:3128
176519913340,64cyclictest0-21swapper/3011:35:0224
175669913330,65cyclictest0-21swapper/1911:29:3911
175669913329,56cyclictest0-21swapper/1909:47:0511
175669913317,76cyclictest0-21swapper/1912:33:1711
17566991330,81cyclictest0-21swapper/1909:15:3411
17566991330,80cyclictest0-21swapper/1910:37:5311
17566991330,79cyclictest0-21swapper/1910:45:2011
174729913340,57cyclictest0-21swapper/708:33:4129
174729913340,57cyclictest0-21swapper/708:33:4029
174659913352,65cyclictest0-21swapper/611:18:1728
174659913331,72cyclictest0-21swapper/612:03:4328
174659913329,71cyclictest0-21swapper/610:02:2228
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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