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2026-08-28 - 18:13
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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 Aug 28, 2026 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1429991157,88cyclictest0-21swapper/011:45:090
14299911017,72cyclictest0-21swapper/012:15:130
1043210522,38sleep00-21swapper/007:07:530
1043210522,38sleep00-21swapper/007:07:530
14319910476,16cyclictest26-21ksoftirqd/111:00:121
14319910172,19cyclictest26-21ksoftirqd/110:15:141
1431999969,18cyclictest26-21ksoftirqd/111:35:131
1431999768,19cyclictest26-21ksoftirqd/110:55:121
1431999563,22cyclictest26-21ksoftirqd/108:45:151
1431999427,47cyclictest243-21systemd-journal08:09:301
1431999367,14cyclictest26-21ksoftirqd/109:50:141
1431999366,17cyclictest26-21ksoftirqd/107:55:111
1431999364,18cyclictest26-21ksoftirqd/110:10:101
1431999363,20cyclictest26-21ksoftirqd/112:15:151
1431999362,18cyclictest26-21ksoftirqd/107:15:131
1431999360,20cyclictest26-21ksoftirqd/110:35:151
1431999133,33cyclictest0-21swapper/110:40:221
88029048,30sleep10-21swapper/107:06:091
88029048,30sleep10-21swapper/107:06:091
1431999059,21cyclictest26-21ksoftirqd/112:10:121
1431998962,17cyclictest26-21ksoftirqd/107:50:121
1431998956,21cyclictest26-21ksoftirqd/112:20:141
1431998955,20cyclictest26-21ksoftirqd/107:35:131
1431998938,41cyclictest26-21ksoftirqd/109:40:121
1431998856,18cyclictest26-21ksoftirqd/109:25:121
1431998755,21cyclictest26-21ksoftirqd/108:30:121
1431998753,20cyclictest26-21ksoftirqd/109:30:101
1431998719,45cyclictest17787-21sshd10:51:281
1431998654,21cyclictest26-21ksoftirqd/107:30:121
1431998552,21cyclictest26-21ksoftirqd/111:20:131
1431998552,21cyclictest26-21ksoftirqd/111:20:131
1431998415,42cyclictest562-21runrttasks10:05:131
142999847,57cyclictest0-21swapper/009:35:090
143199834,54cyclictest6040-21runrttasks10:20:081
1431998315,41cyclictest562-21runrttasks12:30:121
143199826,48cyclictest13969-21head07:40:371
1431998252,19cyclictest26-21ksoftirqd/108:55:241
1431998248,23cyclictest26-21ksoftirqd/111:40:221
1431998212,58cyclictest0-21swapper/108:40:121
1431998211,58cyclictest0-21swapper/111:55:151
1431998210,57cyclictest0-21swapper/107:25:121
142999827,23cyclictest0-21swapper/009:05:110
143199816,45cyclictest0-21swapper/110:00:311
143199816,44cyclictest0-21swapper/107:45:121
1431998157,13cyclictest26-21ksoftirqd/109:10:121
1431998111,57cyclictest0-21swapper/107:20:251
1431998110,58cyclictest0-21swapper/111:45:121
143199806,49cyclictest21313-21unixbench_multi08:00:351
143199802,56cyclictest9124-21runrttasks10:27:371
1431998013,56cyclictest0-21swapper/111:15:151
1431998012,55cyclictest0-21swapper/109:45:121
1431998010,57cyclictest0-21swapper/109:20:141
143199797,43cyclictest0-21swapper/108:10:211
143199795,50cyclictest0-21swapper/108:20:011
143199795,45cyclictest0-21swapper/111:50:221
143199795,44cyclictest0-21swapper/112:00:201
143199793,53cyclictest22750-21runrttasks12:36:271
143199793,52cyclictest562-21runrttasks09:58:381
143199793,51cyclictest2259-21runrttasks08:39:241
143199793,50cyclictest3001-21runrttasks07:14:181
1431997911,56cyclictest0-21swapper/112:25:141
1431997911,55cyclictest0-21swapper/111:30:131
1431997910,56cyclictest0-21swapper/109:35:101
142999798,20cyclictest0-21swapper/009:00:150
1429997910,55cyclictest0-21swapper/011:00:110
143199783,46cyclictest22522-21/usr/sbin/munin11:05:311
1431997812,54cyclictest0-21swapper/111:25:221
1431997811,57cyclictest0-21swapper/108:50:131
1431997811,56cyclictest0-21swapper/108:20:131
1431997810,56cyclictest0-21swapper/112:05:121
1431997747,20cyclictest26-21ksoftirqd/110:45:131
143199772,48cyclictest30960-21runrttasks08:27:211
142999777,54cyclictest0-21swapper/011:20:140
142999777,54cyclictest0-21swapper/011:20:140
143199769,52cyclictest910-21sendmail-mta09:05:121
143199762,50cyclictest16328-21runrttasks09:16:441
143199742,46cyclictest10376-21python310:30:321
1429997421,14cyclictest14-21ksoftirqd/007:30:010
1429997417,15cyclictest14-21ksoftirqd/009:00:010
1429997332,12cyclictest14-21ksoftirqd/009:55:160
1429997319,15cyclictest14-21ksoftirqd/011:20:000
53042720,6chrt5307-21unixbench_multi08:45:360
142999713,23cyclictest14-21ksoftirqd/011:10:000
142999708,45cyclictest0-21swapper/009:20:110
1429997019,14cyclictest21643-21aten2.4_r3power12:35:160
142999683,24cyclictest14-21ksoftirqd/008:20:010
1429996831,13cyclictest14-21ksoftirqd/008:00:160
1429996820,32cyclictest14-21ksoftirqd/011:30:110
1429996812,13cyclictest14-21ksoftirqd/007:35:200
142999676,48cyclictest0-21swapper/010:30:130
1429996719,14cyclictest14-21ksoftirqd/007:15:010
143199662,59cyclictest23589-21aten2.4_r3power11:10:151
142999667,18cyclictest18296-21apt-get10:55:110
142999665,19cyclictest0-21swapper/008:11:440
142999663,33cyclictest18568-21/usr/sbin/munin09:25:220
142999656,51cyclictest27336-21apt-get09:50:120
1429996533,14cyclictest14-21ksoftirqd/010:20:000
1429996523,15cyclictest14-21ksoftirqd/007:25:000
142999643,24cyclictest14-21ksoftirqd/010:40:170
1429996422,17cyclictest3893-21aten2.4-expect07:15:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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