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2026-01-05 - 04:12
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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 50 highest latencies:
System rackbslot7.osadl.org (updated Mon Jan 05, 2026 00:44:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
198899911255,48cyclictest23235-21ssh21:55:060
198899911053,51cyclictest374-21sshd20:05:010
19889991102,28cyclictest11708-21ssh22:28:450
19889991102,26cyclictest23496-21runrttasks20:58:360
19889991093,26cyclictest23617-21ssh00:30:350
19889991086,10cyclictest0-21swapper/019:09:500
19889991073,23cyclictest21417-21ssh22:44:430
19889991072,25cyclictest9382-21ssh23:15:330
19889991072,25cyclictest7814-21ssh22:21:410
198899910650,49cyclictest4366-21ntp_kernel_err00:00:180
19889991062,25cyclictest31759-21ssh23:52:070
19889991062,25cyclictest30602-21ssh22:05:510
19889991052,25cyclictest29471-21ssh23:49:150
19889991052,25cyclictest15399-21taskset20:33:180
19889991052,25cyclictest15399-21taskset20:33:180
19889991052,23cyclictest1367-21ssh22:11:090
19889991052,21cyclictest14680-21ssh21:40:390
2329921040,6sleep10-21swapper/123:39:251
2329921040,6sleep10-21swapper/123:39:251
198979910438,43cyclictest28948-21kworker/u17:0-rpciod21:19:321
198899910448,50cyclictest1205-21sh21:20:090
198899910448,50cyclictest1205-21sh21:20:090
198899910448,45cyclictest0-21swapper/019:40:220
19889991042,26cyclictest13569-21ssh22:30:280
19889991042,23cyclictest17424-21ssh22:37:280
19889991042,22cyclictest26292-21ssh23:44:040
198899910344,50cyclictest0-21swapper/021:50:100
198899910344,50cyclictest0-21swapper/021:50:100
19889991034,22cyclictest14383-21ssh00:15:520
19889991034,22cyclictest14383-21ssh00:15:520
19889991032,25cyclictest19522-21ssh23:32:400
19889991032,23cyclictest27218-21ssh00:36:160
19889991032,22cyclictest13723-21taskset20:27:240
19889991023,23cyclictest30496-21/usr/sbin/munin21:15:080
19889991023,22cyclictest9562-21ssh00:09:320
19889991023,22cyclictest9562-21ssh00:09:320
19889991023,20cyclictest28076-21ssh22:02:240
19889991023,20cyclictest28076-21ssh22:02:240
19889991022,25cyclictest29651-21ssh22:56:150
19889991022,25cyclictest29651-21ssh22:56:150
19889991022,21cyclictest29791-21ssh21:14:210
19889991013,26cyclictest10995-21/usr/sbin/munin00:10:230
19889991013,22cyclictest3707-21ssh23:06:570
19889991012,23cyclictest12222-21taskset20:23:480
19889991012,21cyclictest22167-21ssh23:36:260
19889991012,21cyclictest22167-21ssh23:36:260
19889991003,22cyclictest2777-21ssh23:58:050
19889991003,20cyclictest16238-21ssh23:27:110
19889999942,48cyclictest0-21swapper/023:24:490
19889999942,48cyclictest0-21swapper/023:24:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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