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2026-06-18 - 09:06
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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 Jun 18, 2026 00:50:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912820,274ptp4l0-21swapper/119:06:321
186332280276,2sleep100-21swapper/1019:10:022
199839920329,111cyclictest0-21swapper/2819:18:2021
199839920329,111cyclictest0-21swapper/2819:18:1921
19785991995,162cyclictest0-21swapper/000:36:580
19785991995,162cyclictest0-21swapper/000:36:570
199219918044,135cyclictest0-21swapper/2000:10:1913
199219918044,135cyclictest0-21swapper/2000:10:1913
19921991780,124cyclictest10707-21sed23:00:0013
199219917433,89cyclictest0-21swapper/2023:05:2213
199219917128,127cyclictest0-21swapper/2000:25:1213
199219917128,127cyclictest0-21swapper/2000:25:1113
198839917128,88cyclictest0-21swapper/1523:10:187
1978599170167,2cyclictest151rcu_preempt23:29:370
199219916723,127cyclictest0-21swapper/2022:04:1013
19785991655,147cyclictest0-21swapper/022:45:190
19785991635,124cyclictest0-21swapper/022:34:040
19785991615,115cyclictest0-21swapper/000:10:170
19785991615,115cyclictest0-21swapper/000:10:170
19785991605,111cyclictest0-21swapper/023:24:180
199159915936,75cyclictest0-21swapper/1922:00:2011
19785991595,99cyclictest0-21swapper/000:05:250
199219915826,89cyclictest0-21swapper/2022:08:1013
199839915749,70cyclictest0-21swapper/2800:32:1121
199839915749,70cyclictest0-21swapper/2800:32:1121
199159915732,112cyclictest0-21swapper/1921:35:1311
199159915330,82cyclictest0-21swapper/1922:20:2211
19785991534,108cyclictest0-21swapper/021:19:130
19785991525,116cyclictest0-21swapper/021:05:210
19936991500,89cyclictest0-21swapper/2223:54:3215
199369914947,53cyclictest0-21swapper/2221:37:5715
198309914728,89cyclictest0-21swapper/719:15:1829
198309914728,89cyclictest0-21swapper/719:15:1829
19883991460,88cyclictest0-21swapper/1522:15:157
19785991465,140cyclictest0-21swapper/023:05:010
199589914517,38cyclictest0-21swapper/2519:35:1218
199589914517,38cyclictest0-21swapper/2519:35:1218
199159914323,80cyclictest0-21swapper/1900:38:5011
199159914323,80cyclictest0-21swapper/1900:38:5011
19915991430,80cyclictest0-21swapper/1922:30:1611
199839914230,43cyclictest0-21swapper/2820:35:2021
199839914133,71cyclictest0-21swapper/2822:30:1421
199839914031,107cyclictest0-21swapper/2800:21:5321
199839914031,107cyclictest0-21swapper/2800:21:5221
199839914030,109cyclictest0-21swapper/2800:14:3721
199839914030,109cyclictest0-21swapper/2800:14:3621
199219914028,66cyclictest0-21swapper/2021:40:2313
199159914025,73cyclictest0-21swapper/1922:38:1611
19789991400,88cyclictest0-21swapper/100:39:201
19789991400,88cyclictest0-21swapper/100:39:191
19785991404,83cyclictest0-21swapper/000:33:410
19785991404,83cyclictest0-21swapper/000:33:410
19936991390,81cyclictest0-21swapper/2220:02:1715
19936991390,81cyclictest0-21swapper/2220:02:1715
199159913924,76cyclictest0-21swapper/1922:54:1911
198839913926,72cyclictest0-21swapper/1521:19:397
19883991390,85cyclictest0-21swapper/1523:16:427
2784321380,2sleep230-21swapper/2319:15:0216
2784321380,2sleep230-21swapper/2319:15:0216
199839913830,94cyclictest0-21swapper/2823:15:1421
199839913830,81cyclictest0-21swapper/2800:35:1621
199839913830,81cyclictest0-21swapper/2800:35:1621
199219913848,62cyclictest0-21swapper/2022:48:1613
19785991385,85cyclictest0-21swapper/023:37:030
199289913754,58cyclictest0-21swapper/2120:18:1914
199289913754,58cyclictest0-21swapper/2120:18:1914
199289913744,66cyclictest0-21swapper/2119:10:1614
199289913744,66cyclictest0-21swapper/2119:10:1614
199219913752,64cyclictest0-21swapper/2021:18:2613
199219913728,67cyclictest0-21swapper/2022:10:5213
199219913728,64cyclictest0-21swapper/2019:10:1413
199219913728,64cyclictest0-21swapper/2019:10:1413
199219913726,66cyclictest0-21swapper/2021:52:0513
198839913746,59cyclictest0-21swapper/1523:46:077
198839913746,59cyclictest0-21swapper/1523:46:067
19785991375,90cyclictest0-21swapper/021:45:560
183972137129,6sleep140-21swapper/1419:06:206
19928991360,84cyclictest0-21swapper/2122:37:0014
199219913651,61cyclictest0-21swapper/2021:02:2713
199219913647,66cyclictest0-21swapper/2022:25:2213
199219913646,61cyclictest0-21swapper/2000:08:4313
199219913636,66cyclictest0-21swapper/2021:30:2713
197959913621,71cyclictest0-21swapper/222:13:2612
199839913528,68cyclictest0-21swapper/2822:39:3521
199839913526,79cyclictest0-21swapper/2821:29:4821
199219913520,76cyclictest0-21swapper/2000:20:1213
199219913520,76cyclictest0-21swapper/2000:20:1213
198839913528,69cyclictest0-21swapper/1519:55:157
198839913528,69cyclictest0-21swapper/1519:55:147
197959913521,81cyclictest0-21swapper/221:40:1912
199679913422,43cyclictest0-21swapper/2622:28:1619
199219913428,77cyclictest0-21swapper/2000:35:2313
199219913428,77cyclictest0-21swapper/2000:35:2313
199219913427,67cyclictest0-21swapper/2020:31:2813
199219913427,67cyclictest0-21swapper/2020:31:2713
198839913428,66cyclictest0-21swapper/1519:45:537
198839913428,66cyclictest0-21swapper/1519:45:527
198309913427,42cyclictest0-21swapper/720:45:1929
197959913421,78cyclictest0-21swapper/222:27:2012
19785991344,81cyclictest0-21swapper/021:35:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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