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2025-11-20 - 01:32
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackcslot3.osadl.org (updated Wed Nov 19, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151850780irq/30-eth0-tx-0-21swapper/012:03:320
81730rcu_preempt0-21swapper/107:07:151
81720rcu_preempt21162-21ssh11:40:171
81700rcu_preempt18454-21mailstats08:15:211
81690rcu_preempt9423-21diskstats11:20:120
81680rcu_preempt653-21sh10:08:190
81680rcu_preempt11047-21sh09:30:110
81680rcu_preempt0-21swapper/111:30:221
81680rcu_preempt0-21swapper/109:58:291
81680rcu_preempt0-21swapper/012:27:560
81680rcu_preempt0-21swapper/012:11:190
81670rcu_preempt0-21swapper/107:55:091
81670rcu_preempt0-21swapper/107:40:201
81670rcu_preempt0-21swapper/008:45:180
81660rcu_preempt11774-21latency_hist11:24:551
81660rcu_preempt0-21swapper/112:29:251
81660rcu_preempt0-21swapper/111:29:111
81660rcu_preempt0-21swapper/111:07:061
81660rcu_preempt0-21swapper/011:41:450
81650rcu_preempt0-21swapper/112:18:311
81650rcu_preempt0-21swapper/110:41:571
81650rcu_preempt0-21swapper/110:00:511
81650rcu_preempt0-21swapper/109:22:341
81650rcu_preempt0-21swapper/109:19:121
81650rcu_preempt0-21swapper/108:35:291
81640rcu_preempt0-21swapper/110:55:111
81640rcu_preempt0-21swapper/110:10:531
81640rcu_preempt0-21swapper/011:10:090
81630rcu_preempt0-21swapper/112:33:521
81630rcu_preempt0-21swapper/110:23:411
81630rcu_preempt0-21swapper/109:05:141
81630rcu_preempt0-21swapper/011:33:500
81630rcu_preempt0-21swapper/011:28:340
81630rcu_preempt0-21swapper/010:31:430
81630rcu_preempt0-21swapper/007:07:080
81620rcu_preempt0-21swapper/111:10:221
81620rcu_preempt0-21swapper/109:31:591
81610rcu_preempt3289-21sh12:05:220
81610rcu_preempt31561-21sh11:01:080
81610rcu_preempt0-21swapper/111:58:591
81610rcu_preempt0-21swapper/111:46:161
81610rcu_preempt0-21swapper/110:32:591
81610rcu_preempt0-21swapper/109:50:131
81610rcu_preempt0-21swapper/108:46:301
81610rcu_preempt0-21swapper/108:41:211
81610rcu_preempt0-21swapper/009:40:300
81610rcu_preempt0-21swapper/007:53:350
81600rcu_preempt7373-21latency_hist07:34:540
81600rcu_preempt26475-21ssh10:52:501
81600rcu_preempt24097-21rm09:52:050
81600rcu_preempt19013-21sshd09:44:061
81600rcu_preempt0-21swapper/112:35:271
81600rcu_preempt0-21swapper/112:23:051
81600rcu_preempt0-21swapper/110:27:581
81600rcu_preempt0-21swapper/110:15:151
81600rcu_preempt0-21swapper/109:45:161
81600rcu_preempt0-21swapper/011:45:200
81600rcu_preempt0-21swapper/009:28:450
81600rcu_preempt0-21swapper/009:21:390
81590rcu_preempt18410-21ssh10:39:301
81590rcu_preempt15609-21ssh09:37:181
81590rcu_preempt0-21swapper/112:04:431
81590rcu_preempt0-21swapper/109:14:061
81590rcu_preempt0-21swapper/108:50:131
81590rcu_preempt0-21swapper/108:04:551
81590rcu_preempt0-21swapper/108:00:171
81590rcu_preempt0-21swapper/107:50:141
81590rcu_preempt0-21swapper/010:52:350
81590rcu_preempt0-21swapper/010:03:390
81590rcu_preempt0-21swapper/009:13:380
81580rcu_preempt9377-21ssh09:26:131
81580rcu_preempt9091-21ssh10:22:440
81580rcu_preempt27602-21ssh11:51:181
81580rcu_preempt0-21swapper/111:00:371
81580rcu_preempt0-21swapper/110:47:411
81580rcu_preempt0-21swapper/010:55:400
81580rcu_preempt0-21swapper/010:29:080
81580rcu_preempt0-21swapper/009:05:140
81580rcu_preempt0-21swapper/007:25:270
81570rcu_preempt8524-21ssh11:18:360
81570rcu_preempt31595-21latency_hist11:59:540
81570rcu_preempt15806-21ssh09:37:510
81570rcu_preempt0-21swapper/112:11:121
81570rcu_preempt0-21swapper/108:55:191
81570rcu_preempt0-21swapper/108:20:211
81570rcu_preempt0-21swapper/107:20:131
81570rcu_preempt0-21swapper/107:15:141
81570rcu_preempt0-21swapper/012:32:400
81570rcu_preempt0-21swapper/010:40:100
81570rcu_preempt0-21swapper/009:17:150
81570rcu_preempt0-21swapper/008:05:170
81560rcu_preempt3247-21ssh10:12:060
81560rcu_preempt0-21swapper/111:15:081
81560rcu_preempt0-21swapper/110:09:451
81560rcu_preempt0-21swapper/107:45:141
81560rcu_preempt0-21swapper/107:25:361
81560rcu_preempt0-21swapper/012:35:270
81560rcu_preempt0-21swapper/011:06:330
81560rcu_preempt0-21swapper/010:45:140
81560rcu_preempt0-21swapper/009:58:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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