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2026-01-05 - 06:54
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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 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
1988999993,23cyclictest23255-21taskset19:17:140
1988999993,23cyclictest23255-21taskset19:17:140
1988999993,22cyclictest3866-21taskset19:58:370
1988999992,25cyclictest21981-21sh00:29:280
1988999992,23cyclictest13053-21ssh21:39:370
1988999992,22cyclictest4660-21ssh22:16:390
19889999844,45cyclictest0-21swapper/021:25:220
1988999983,21cyclictest17401-21ssh00:20:340
1988999982,31cyclictest5150-21ssh23:10:040
1988999982,26cyclictest1231-21taskset23:03:360
1988999982,24cyclictest9803-21ssh21:34:170
1988999982,24cyclictest21239-21taskset19:12:400
1988999982,24cyclictest10499-21taskset20:17:370
19903999755,35cyclictest0-21swapper/222:20:112
19889999745,45cyclictest0-21swapper/022:50:210
19889999745,45cyclictest0-21swapper/022:50:210
1988999972,27cyclictest8991-21runrttasks20:14:020
1988999972,25cyclictest24557-21ls19:20:250
1988999972,21cyclictest21843-21taskset20:53:000
1897029711,43sleep20-21swapper/219:05:292
1990399963,47cyclictest13504-21sh21:40:022
1988999962,24cyclictest26554-21taskset21:06:050
189002968,61sleep118923-21/usr/sbin/munin19:05:241
1988999952,27cyclictest352-21runrttasks20:38:180
61492940,5sleep16126-21ssh22:19:511
1988999942,25cyclictest5511-21runrttasks20:03:420
19897999354,32cyclictest0-21swapper/122:40:181
1989799932,61cyclictest25929-21ssh00:35:221
19889999340,45cyclictest0-21swapper/019:25:270
1988999933,25cyclictest20262-21runrttasks20:48:220
1988999932,28cyclictest352-21runrttasks21:01:190
1988999932,28cyclictest352-21runrttasks21:01:190
19897999243,38cyclictest6053-21gpgv20:04:511
19897999241,43cyclictest22732-21latency_hist21:54:511
19897999241,43cyclictest22732-21latency_hist21:54:511
19889999243,42cyclictest32404-21sh19:45:160
1988999922,23cyclictest29845-21taskset19:38:240
1990399905,38cyclictest32409-21/usr/sbin/munin22:10:172
1988999903,29cyclictest24548-21modprobe22:49:460
19897998945,37cyclictest983-21acpi21:19:591
19897998945,37cyclictest983-21acpi21:19:591
19897998847,34cyclictest15348-21sh22:34:501
19897998743,36cyclictest0-21swapper/120:35:281
19897998740,39cyclictest0-21swapper/100:29:471
19889998739,43cyclictest0-21swapper/019:34:490
19889998739,43cyclictest0-21swapper/019:34:490
1988999873,27cyclictest16780-21sh21:44:540
19889998711,25cyclictest18622-21seq20:43:010
1990399863,38cyclictest14210-21ssh00:15:272
1990399863,38cyclictest14210-21ssh00:15:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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