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2026-07-19 - 19:16
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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 Sun Jul 19, 2026 12:48:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913840,370ptp4l0-21swapper/107:05:211
3273913840,370ptp4l0-21swapper/107:05:201
56382283276,6sleep50-21swapper/507:05:0627
56382283276,6sleep50-21swapper/507:05:0627
330891232224,6phc2sys0-21swapper/207:07:2312
330891232224,6phc2sys0-21swapper/207:07:2312
117459915021,41cyclictest0-21swapper/2307:50:0016
11675991440,85cyclictest0-21swapper/910:17:1631
11761991430,83cyclictest0-21swapper/2710:55:1620
1173699142141,1cyclictest151rcu_preempt10:10:1714
11655991420,86cyclictest0-21swapper/411:57:5826
11655991420,86cyclictest0-21swapper/411:57:5726
11655991411,84cyclictest0-21swapper/410:04:3926
11655991410,84cyclictest0-21swapper/407:30:1526
117369914013,71cyclictest0-21swapper/2110:55:1214
11697991400,86cyclictest0-21swapper/1410:46:446
11655991400,82cyclictest0-21swapper/411:10:5526
11655991390,88cyclictest0-21swapper/410:30:3626
117419913846,54cyclictest151rcu_preempt11:15:1315
117369913813,124cyclictest0-21swapper/2109:45:5614
117369913813,124cyclictest0-21swapper/2109:15:1714
117369913813,110cyclictest0-21swapper/2111:52:2714
116559913827,67cyclictest0-21swapper/411:00:2026
11640991381,84cyclictest0-21swapper/210:50:5012
117369913713,84cyclictest0-21swapper/2111:55:2114
117369913713,84cyclictest0-21swapper/2111:55:2114
116759913741,63cyclictest0-21swapper/909:48:5731
11655991370,83cyclictest0-21swapper/412:30:1726
11655991370,83cyclictest0-21swapper/412:30:1726
116409913748,58cyclictest0-21swapper/211:05:4812
116409913727,76cyclictest0-21swapper/211:19:5712
116759913629,64cyclictest0-21swapper/910:22:3731
116559913642,58cyclictest0-21swapper/412:22:0126
116559913642,58cyclictest0-21swapper/412:22:0126
11655991360,85cyclictest0-21swapper/407:50:1826
11655991360,81cyclictest0-21swapper/407:39:5926
116409913627,74cyclictest0-21swapper/210:07:0012
117369913512,94cyclictest0-21swapper/2112:08:0714
117369913512,94cyclictest0-21swapper/2112:08:0714
117369913512,78cyclictest0-21swapper/2110:40:1514
116759913527,64cyclictest0-21swapper/908:59:1431
116409913530,68cyclictest0-21swapper/212:13:0912
116409913530,68cyclictest0-21swapper/212:13:0812
116759913430,64cyclictest0-21swapper/909:28:0531
116759913429,64cyclictest0-21swapper/910:30:0631
116759913429,63cyclictest0-21swapper/910:05:3131
116559913429,73cyclictest0-21swapper/409:50:2026
116559913426,60cyclictest0-21swapper/409:20:0226
116559913424,69cyclictest0-21swapper/411:52:3726
116409913449,56cyclictest0-21swapper/211:36:3012
116409913444,61cyclictest0-21swapper/212:17:5712
116409913444,61cyclictest0-21swapper/212:17:5612
116409913430,69cyclictest0-21swapper/212:27:0112
116409913430,69cyclictest0-21swapper/212:27:0112
116409913430,69cyclictest0-21swapper/211:45:0412
116409913430,69cyclictest0-21swapper/211:45:0312
116409913427,74cyclictest0-21swapper/208:34:0212
117369913312,81cyclictest0-21swapper/2111:29:0514
116559913327,64cyclictest0-21swapper/410:05:1226
116409913336,64cyclictest0-21swapper/210:29:5912
116409913331,70cyclictest0-21swapper/210:02:2412
116409913329,69cyclictest0-21swapper/212:00:4912
117789913248,53cyclictest0-21swapper/3109:10:1825
117589913225,72cyclictest26936-21df07:45:1519
116759913229,64cyclictest0-21swapper/909:44:0831
116559913230,64cyclictest0-21swapper/409:05:0426
116559913228,58cyclictest0-21swapper/407:45:0626
116559913227,63cyclictest0-21swapper/407:15:2026
11655991320,81cyclictest0-21swapper/409:37:4026
11655991320,81cyclictest0-21swapper/407:41:2826
11655991320,79cyclictest0-21swapper/412:12:2726
11655991320,79cyclictest0-21swapper/412:12:2726
116409913249,59cyclictest0-21swapper/211:33:1712
116409913227,71cyclictest0-21swapper/211:24:3012
117789913158,33cyclictest0-21swapper/3109:29:3225
117789913126,62cyclictest0-21swapper/3108:01:0625
117419913116,79cyclictest0-21swapper/2212:16:3515
117419913116,79cyclictest0-21swapper/2212:16:3515
11672991311,76cyclictest0-21swapper/807:43:5230
116559913129,64cyclictest0-21swapper/412:02:4026
116559913128,61cyclictest0-21swapper/411:40:2126
116559913126,63cyclictest0-21swapper/407:24:4726
116559913124,68cyclictest0-21swapper/412:15:2326
116559913124,68cyclictest0-21swapper/412:15:2226
116559913122,76cyclictest0-21swapper/410:27:0126
11655991310,79cyclictest0-21swapper/409:00:0126
11655991310,78cyclictest0-21swapper/412:36:5426
11655991310,78cyclictest0-21swapper/412:36:5326
11650991310,83cyclictest0-21swapper/310:21:5923
116409913157,62cyclictest0-21swapper/211:42:5712
116409913129,70cyclictest0-21swapper/209:53:3812
116409913129,67cyclictest0-21swapper/211:04:1212
116409913129,67cyclictest0-21swapper/208:56:2712
116409913128,66cyclictest0-21swapper/208:24:5512
116409913127,68cyclictest0-21swapper/209:38:4012
116409913127,60cyclictest0-21swapper/212:21:5912
116409913127,60cyclictest0-21swapper/212:21:5912
116409913126,69cyclictest0-21swapper/212:09:2412
116409913126,69cyclictest0-21swapper/212:09:2312
117789913064,64cyclictest0-21swapper/3109:35:2425
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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