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2025-11-26 - 13:19
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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 Nov 26, 2025 00:49:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482912710,262ptp4l0-21swapper/119:07:251
294229917360,110cyclictest0-21swapper/1921:55:3811
293559916311,98cyclictest0-21swapper/1023:43:582
293559916311,98cyclictest0-21swapper/1023:43:572
292969915234,117cyclictest0-21swapper/221:43:3412
294899914944,77cyclictest0-21swapper/2822:24:5521
294899914944,77cyclictest0-21swapper/2822:24:5521
294539914955,51cyclictest0-21swapper/2319:30:2216
294629914723,99cyclictest0-21swapper/2400:15:1617
294629914723,99cyclictest0-21swapper/2400:15:1617
29462991450,85cyclictest0-21swapper/2423:35:2617
29462991450,85cyclictest0-21swapper/2423:35:2617
29462991440,87cyclictest0-21swapper/2420:45:0017
29453991440,85cyclictest0-21swapper/2322:50:1216
29453991440,85cyclictest0-21swapper/2322:50:1116
29489991439,133cyclictest185-21ksoftirqd/2821:31:4721
29462991420,87cyclictest0-21swapper/2419:55:1717
29462991420,84cyclictest0-21swapper/2420:35:5417
294229914227,114cyclictest0-21swapper/1923:48:5111
294229914227,114cyclictest0-21swapper/1923:48:5111
29462991410,83cyclictest0-21swapper/2422:05:1217
294229914026,75cyclictest0-21swapper/1923:40:2211
294229914026,75cyclictest0-21swapper/1923:40:2211
294899913933,83cyclictest0-21swapper/2800:13:2521
294899913930,36cyclictest0-21swapper/2821:13:2221
2936399139137,1cyclictest151rcu_preempt23:25:173
2936399139137,1cyclictest151rcu_preempt23:25:163
292969913917,39cyclictest0-21swapper/223:01:0412
294899913855,83cyclictest185-21ksoftirqd/2822:42:0421
29447991380,85cyclictest0-21swapper/2219:15:5515
294229913850,49cyclictest0-21swapper/1900:16:0811
294229913850,49cyclictest0-21swapper/1900:16:0711
29401991380,85cyclictest0-21swapper/1621:45:268
294899913731,72cyclictest0-21swapper/2820:05:1521
294899913730,106cyclictest0-21swapper/2819:30:1421
294629913726,65cyclictest0-21swapper/2400:05:2217
294629913726,65cyclictest0-21swapper/2400:05:2117
29462991370,83cyclictest0-21swapper/2419:15:1217
292969913730,63cyclictest0-21swapper/222:04:0712
294899913637,66cyclictest0-21swapper/2821:00:1421
294629913627,64cyclictest0-21swapper/2423:50:2517
294629913627,64cyclictest0-21swapper/2423:50:2517
294539913619,72cyclictest0-21swapper/2323:23:2016
294539913619,72cyclictest0-21swapper/2323:23:1916
29379991360,83cyclictest0-21swapper/1300:35:185
294629913528,66cyclictest0-21swapper/2400:24:2317
294629913528,66cyclictest0-21swapper/2400:24:2217
294629913527,68cyclictest0-21swapper/2419:25:2117
29462991351,80cyclictest0-21swapper/2423:40:1917
29462991351,80cyclictest0-21swapper/2423:40:1917
29462991350,79cyclictest0-21swapper/2423:05:0317
29462991350,79cyclictest0-21swapper/2423:05:0217
294539913530,23cyclictest0-21swapper/2321:50:2016
294899913427,75cyclictest0-21swapper/2821:50:1421
294629913429,67cyclictest0-21swapper/2400:02:2617
294629913429,67cyclictest0-21swapper/2400:02:2517
29462991340,81cyclictest0-21swapper/2421:52:1417
294629913331,67cyclictest0-21swapper/2422:28:2117
294629913330,66cyclictest0-21swapper/2421:12:1617
294629913328,67cyclictest0-21swapper/2421:17:0117
294629913326,75cyclictest0-21swapper/2423:22:3517
294629913326,75cyclictest0-21swapper/2423:22:3517
29462991330,83cyclictest0-21swapper/2422:15:1517
294229913331,57cyclictest0-21swapper/1922:19:0411
294019913324,66cyclictest0-21swapper/1623:00:368
29468991320,85cyclictest0-21swapper/2523:00:2318
294629913232,71cyclictest0-21swapper/2423:55:1317
294629913232,71cyclictest0-21swapper/2423:55:1217
29462991320,81cyclictest0-21swapper/2422:56:2617
29462991320,81cyclictest0-21swapper/2422:56:2617
29462991320,80cyclictest0-21swapper/2422:10:2717
29462991320,77cyclictest0-21swapper/2423:00:5817
294019913288,43cyclictest141650irq/62-enp5s0-r20:45:228
294019913240,60cyclictest0-21swapper/1621:34:208
29363991325,115cyclictest0-21swapper/1100:12:413
294629913147,66cyclictest0-21swapper/2400:15:0017
294629913127,62cyclictest0-21swapper/2400:27:1317
294629913126,65cyclictest0-21swapper/2422:45:1317
29462991310,77cyclictest0-21swapper/2400:33:3917
29462991310,76cyclictest0-21swapper/2422:52:2417
29462991310,76cyclictest0-21swapper/2422:52:2417
29462991310,75cyclictest0-21swapper/2421:45:2117
294229913139,61cyclictest0-21swapper/1922:54:2211
294229913139,61cyclictest0-21swapper/1922:54:2111
294019913145,55cyclictest0-21swapper/1623:09:088
294019913145,55cyclictest0-21swapper/1623:09:088
294019913121,63cyclictest0-21swapper/1623:47:048
294019913121,63cyclictest0-21swapper/1623:47:048
29363991316,88cyclictest0-21swapper/1121:17:153
294629913028,67cyclictest0-21swapper/2421:33:4017
294629913027,62cyclictest0-21swapper/2423:32:4317
294629913027,62cyclictest0-21swapper/2423:32:4217
294539913045,56cyclictest0-21swapper/2323:29:1316
294539913045,56cyclictest0-21swapper/2323:29:1216
294229913027,66cyclictest0-21swapper/1921:52:5611
294899912923,83cyclictest0-21swapper/2822:14:0121
294629912939,64cyclictest0-21swapper/2400:38:2717
294629912930,70cyclictest0-21swapper/2422:21:2417
294629912930,70cyclictest0-21swapper/2422:21:2417
294629912928,60cyclictest0-21swapper/2423:45:0217
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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