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2025-12-05 - 03:57
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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 rack3slot6.osadl.org (updated Fri Dec 05, 2025 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9080211124,41sleep10-21swapper/119:05:241
229102850,14sleep122911-21unixbench_multi19:40:351
10089998430,18cyclictest6902-21apt-get20:30:210
10089998023,10cyclictest21973-21aten2.4-expect00:15:170
224282790,5sleep022430-21wc22:45:200
835727829,37sleep00-21swapper/019:05:120
10095997852,19cyclictest443-21systemd-logind22:55:141
10089997843,23cyclictest14-21ksoftirqd/020:10:360
10089997439,23cyclictest14-21ksoftirqd/000:10:210
10095997145,10cyclictest21969-21ntpq21:10:291
1008999696,11cyclictest0-21swapper/023:05:160
1008999687,51cyclictest8633-21apt-get20:35:130
10095996742,10cyclictest26-21ksoftirqd/100:10:331
10089996732,12cyclictest7505-21/usr/sbin/munin23:35:260
10089996731,29cyclictest14-21ksoftirqd/020:55:280
1008999658,42cyclictest0-21swapper/000:25:160
10095996314,16cyclictest254-21systemd-journal19:47:231
10089996337,20cyclictest14-21ksoftirqd/023:55:390
10089996336,15cyclictest14-21ksoftirqd/021:07:380
1009599628,49cyclictest36-21kcompactd023:05:151
10095996221,34cyclictest0-21swapper/119:30:231
10095996133,15cyclictest0-21swapper/122:40:141
10095996115,41cyclictest0-21swapper/122:30:381
1008999618,39cyclictest0-21swapper/020:50:150
10089996136,19cyclictest14-21ksoftirqd/020:20:170
1009599605,49cyclictest6902-21apt-get20:30:221
10095996030,17cyclictest0-21swapper/121:20:141
10095996014,17cyclictest0-21swapper/119:55:131
1008999605,41cyclictest0-21swapper/019:25:160
10089996034,19cyclictest14-21ksoftirqd/022:40:150
10089996033,20cyclictest1-21systemd19:15:020
10089996029,26cyclictest14-21ksoftirqd/021:35:160
210625919,35sleep01648-21/usr/sbin/munin20:15:260
10095995932,17cyclictest0-21swapper/100:00:181
1008999599,36cyclictest0-21swapper/023:25:300
10089995936,17cyclictest14-21ksoftirqd/000:05:160
10089995921,16cyclictest25446-21nfsd421:20:280
10089995917,19cyclictest2448-21aten2.4-expect23:20:180
10095995837,15cyclictest24608-21runrttasks22:50:301
10095995835,10cyclictest10082-21cyclictest21:58:011
10095995832,14cyclictest0-21swapper/120:55:181
10089995836,16cyclictest14-21ksoftirqd/022:32:570
10089995835,17cyclictest14-21ksoftirqd/022:00:160
10089995821,16cyclictest26477-21swap22:55:360
1009599578,13cyclictest0-21swapper/120:47:451
10095995741,11cyclictest0-21swapper/122:05:381
10095995733,14cyclictest26-21ksoftirqd/119:35:151
10095995712,40cyclictest0-21swapper/122:10:351
10089995735,17cyclictest14-21ksoftirqd/000:30:270
10089995735,17cyclictest12252-21aten2.4-expect20:45:170
10089995734,18cyclictest14-21ksoftirqd/019:50:170
10089995733,19cyclictest14-21ksoftirqd/021:00:260
10089995732,19cyclictest14-21ksoftirqd/000:20:230
10089995716,15cyclictest3229-21if_enp2s021:50:230
10089995714,37cyclictest448-21dbus-daemon20:05:000
10095995641,9cyclictest26-21ksoftirqd/123:50:301
10095995641,9cyclictest26-21ksoftirqd/123:50:301
10095995640,10cyclictest26-21ksoftirqd/121:30:341
10095995639,11cyclictest26-21ksoftirqd/123:00:181
10095995631,20cyclictest16240-21apache200:00:031
1008999565,46cyclictest0-21swapper/000:35:170
10089995633,17cyclictest14-21ksoftirqd/023:30:050
10089995632,19cyclictest14-21ksoftirqd/022:05:190
10089995632,18cyclictest14-21ksoftirqd/019:35:110
10089995619,16cyclictest0-21swapper/019:34:130
1009599558,10cyclictest26-21ksoftirqd/123:15:201
1009599557,43cyclictest0-21swapper/123:20:201
1009599556,12cyclictest0-21swapper/121:15:321
10095995541,9cyclictest26-21ksoftirqd/121:25:211
10095995541,9cyclictest26-21ksoftirqd/119:15:001
10095995540,9cyclictest26-21ksoftirqd/122:15:191
10095995540,9cyclictest26-21ksoftirqd/121:40:271
10095995539,11cyclictest0-21swapper/123:40:221
10095995539,10cyclictest26-21ksoftirqd/122:45:331
10095995539,10cyclictest26-21ksoftirqd/122:20:221
10095995539,10cyclictest26-21ksoftirqd/122:20:211
10095995538,11cyclictest26-21ksoftirqd/123:35:371
10095995529,14cyclictest0-21swapper/122:35:141
10095995514,33cyclictest0-21swapper/120:15:131
10095995510,11cyclictest0-21swapper/119:50:111
1008999555,11cyclictest0-21swapper/020:29:130
1008999554,39cyclictest0-21swapper/023:48:460
10089995536,15cyclictest14-21ksoftirqd/022:15:240
10089995532,17cyclictest14-21ksoftirqd/022:30:020
10089995531,18cyclictest14-21ksoftirqd/022:21:430
10089995531,18cyclictest14-21ksoftirqd/022:21:420
10089995525,25cyclictest0-21swapper/021:46:520
10089995517,33cyclictest27261-21pluginstate21:25:350
10089995517,26cyclictest0-21swapper/022:35:180
1009599546,13cyclictest0-21swapper/120:42:231
10095995440,9cyclictest26-21ksoftirqd/123:50:001
10095995440,9cyclictest26-21ksoftirqd/121:00:311
10095995439,9cyclictest26-21ksoftirqd/122:25:331
10095995439,9cyclictest26-21ksoftirqd/122:00:201
10095995439,9cyclictest26-21ksoftirqd/121:45:301
10095995439,9cyclictest26-21ksoftirqd/119:15:181
10095995439,9cyclictest26-21ksoftirqd/100:20:171
10095995439,10cyclictest0-21swapper/123:30:011
10095995439,10cyclictest0-21swapper/120:10:281
10095995438,10cyclictest26-21ksoftirqd/100:35:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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