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2026-05-24 - 15:37
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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 May 24, 2026 12:49:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913250,318ptp4l0-21swapper/107:06:441
330891231222,6phc2sys0-21swapper/207:05:1512
94389917617,117cyclictest0-21swapper/2212:32:1215
948099159157,1cyclictest151rcu_preempt11:38:0521
942899155154,1cyclictest137-21ksoftirqd/2012:31:2913
94289915042,92cyclictest0-21swapper/2012:38:5413
9432991480,91cyclictest0-21swapper/2108:50:2214
94109914718,127cyclictest0-21swapper/1610:11:008
94109914718,127cyclictest0-21swapper/1610:11:008
9473991458,110cyclictest0-21swapper/2708:30:1120
94109914518,106cyclictest0-21swapper/1610:23:188
94109914518,106cyclictest0-21swapper/1610:23:188
94109914418,98cyclictest0-21swapper/1607:50:168
94109914418,96cyclictest0-21swapper/1612:35:218
94109914418,96cyclictest0-21swapper/1610:52:138
94109914418,92cyclictest0-21swapper/1609:52:388
94109914418,92cyclictest0-21swapper/1609:52:388
94109914418,125cyclictest0-21swapper/1607:49:238
9480991438,105cyclictest151rcu_preempt09:19:1921
94109914318,85cyclictest0-21swapper/1611:32:038
9501991429,129cyclictest151rcu_preempt10:11:5225
9501991429,129cyclictest151rcu_preempt10:11:5225
943899142141,1cyclictest151rcu_preempt12:20:1815
9432991420,84cyclictest0-21swapper/2111:15:1314
9432991420,84cyclictest0-21swapper/2109:26:1014
9432991420,83cyclictest0-21swapper/2109:50:0214
9432991420,83cyclictest0-21swapper/2109:50:0214
94109914218,86cyclictest0-21swapper/1611:50:478
9410991420,80cyclictest0-21swapper/1607:35:178
94809914132,101cyclictest0-21swapper/2811:50:5621
94329914139,64cyclictest0-21swapper/2112:14:3314
9432991410,86cyclictest0-21swapper/2111:37:4014
9432991410,84cyclictest0-21swapper/2109:13:5414
9432991410,82cyclictest0-21swapper/2111:50:3014
94389914023,43cyclictest0-21swapper/2212:10:1815
94329914050,60cyclictest0-21swapper/2109:43:1714
94329914050,60cyclictest0-21swapper/2109:43:1614
94329914027,69cyclictest0-21swapper/2110:19:5414
94329914027,69cyclictest0-21swapper/2110:19:5414
9432991400,85cyclictest0-21swapper/2107:25:1214
9432991390,86cyclictest0-21swapper/2111:40:5214
9432991390,85cyclictest0-21swapper/2110:43:4114
94329913842,58cyclictest0-21swapper/2108:10:2414
94329913828,69cyclictest0-21swapper/2109:39:0114
94329913828,69cyclictest0-21swapper/2109:39:0114
94329913827,70cyclictest0-21swapper/2111:10:1214
9432991380,87cyclictest0-21swapper/2112:24:0914
9432991380,84cyclictest0-21swapper/2107:24:2114
9432991380,83cyclictest0-21swapper/2110:30:2014
94289913830,84cyclictest0-21swapper/2010:37:0413
94289913830,84cyclictest0-21swapper/2010:37:0413
9465991370,87cyclictest0-21swapper/2609:50:1919
9465991370,87cyclictest0-21swapper/2609:50:1919
94389913724,71cyclictest0-21swapper/2211:17:0915
94329913728,72cyclictest0-21swapper/2110:49:3414
94329913728,72cyclictest0-21swapper/2110:49:3314
9432991370,87cyclictest0-21swapper/2112:00:2514
9432991370,83cyclictest0-21swapper/2111:30:1414
94389913623,73cyclictest0-21swapper/2211:27:3115
9432991360,81cyclictest0-21swapper/2110:25:3114
9432991360,81cyclictest0-21swapper/2110:25:3114
9432991360,80cyclictest0-21swapper/2110:35:4014
9432991360,80cyclictest0-21swapper/2110:35:4014
94109913619,69cyclictest0-21swapper/1612:15:228
94329913548,61cyclictest0-21swapper/2112:08:3914
94329913546,61cyclictest0-21swapper/2111:09:5314
94329913543,60cyclictest0-21swapper/2110:11:0514
94329913543,60cyclictest0-21swapper/2110:11:0414
94329913529,66cyclictest0-21swapper/2110:06:1514
94329913529,66cyclictest0-21swapper/2110:06:1514
94329913515,69cyclictest0-21swapper/2107:30:1414
9432991350,83cyclictest0-21swapper/2112:25:1414
9432991350,80cyclictest0-21swapper/2109:24:3514
94109913516,89cyclictest0-21swapper/1609:31:478
94109913516,89cyclictest0-21swapper/1609:31:478
94439913417,94cyclictest151rcu_preempt12:08:4216
94329913455,63cyclictest0-21swapper/2109:48:3814
94329913455,63cyclictest0-21swapper/2109:48:3814
94329913453,66cyclictest0-21swapper/2109:55:1914
94329913453,66cyclictest0-21swapper/2109:55:1914
94329913442,58cyclictest0-21swapper/2111:46:1314
94329913415,70cyclictest0-21swapper/2111:20:3414
9432991340,80cyclictest0-21swapper/2110:58:0714
94389913319,97cyclictest0-21swapper/2211:10:2515
94389913319,91cyclictest0-21swapper/2212:17:4615
94329913329,67cyclictest0-21swapper/2110:00:2414
94329913329,67cyclictest0-21swapper/2110:00:2414
94329913329,62cyclictest0-21swapper/2111:01:2014
94329913319,75cyclictest0-21swapper/2107:59:3714
94289913346,46cyclictest0-21swapper/2010:40:1813
9421991330,79cyclictest0-21swapper/1912:07:3411
9473991328,75cyclictest0-21swapper/2711:12:3920
94389913218,89cyclictest0-21swapper/2208:40:1515
94329913229,65cyclictest0-21swapper/2112:32:1114
9432991320,79cyclictest0-21swapper/2109:30:2814
9432991320,79cyclictest0-21swapper/2109:30:2814
9421991320,74cyclictest0-21swapper/1909:14:5611
80012132125,6sleep240-21swapper/2407:08:0717
94539913143,57cyclictest0-21swapper/2412:31:3017
94109913118,62cyclictest0-21swapper/1610:45:378
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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