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2025-12-16 - 06:16
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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 Tue Dec 16, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt9113-21k10sensors19:14:081
81780rcu_preempt0-21swapper/100:09:061
81740rcu_preempt3053-21/usr/sbin/munin21:53:591
81710rcu_preempt6001-21diskmemload22:59:060
81710rcu_preempt22058-21sh23:54:310
81710rcu_preempt0-21swapper/119:05:161
81700rcu_preempt16721-21ssh00:34:090
81700rcu_preempt0-21swapper/021:15:220
81690rcu_preempt16856-21apt-get22:13:550
81680rcu_preempt6133-21mailstats22:44:080
81680rcu_preempt13687-21munin-run22:55:050
81660rcu_preempt0-21swapper/121:23:481
81660rcu_preempt0-21swapper/021:39:280
81660rcu_preempt0-21swapper/021:39:280
81660rcu_preempt0-21swapper/021:23:300
81660rcu_preempt0-21swapper/000:16:260
81660rcu_preempt0-21swapper/000:16:260
81650rcu_preempt761-21ssh22:37:000
81650rcu_preempt0-21swapper/123:24:591
81650rcu_preempt0-21swapper/121:33:371
81650rcu_preempt0-21swapper/023:32:090
81650rcu_preempt0-21swapper/022:34:170
81650rcu_preempt0-21swapper/021:28:240
81640rcu_preempt21157-21ssh22:19:080
81640rcu_preempt0-21swapper/022:25:030
81640rcu_preempt0-21swapper/021:00:420
81630rcu_preempt1249-21ssh00:12:171
81630rcu_preempt0-21swapper/121:27:331
147850630irq/30-eth0-tx-31217-1kworker/0:2H22:00:000
81620rcu_preempt22946-21ssh22:22:041
81620rcu_preempt22212-21ssh23:08:341
81620rcu_preempt0-21swapper/123:04:251
81620rcu_preempt0-21swapper/122:43:231
81620rcu_preempt0-21swapper/122:35:461
81620rcu_preempt0-21swapper/100:32:411
81620rcu_preempt0-21swapper/020:34:060
81620rcu_preempt0-21swapper/019:49:080
81620rcu_preempt0-21swapper/019:27:220
81610rcu_preempt3856-21ntp_states21:54:060
81610rcu_preempt14326-21ssh22:56:151
81610rcu_preempt0-21swapper/123:32:531
81610rcu_preempt0-21swapper/122:30:511
81610rcu_preempt0-21swapper/122:13:121
81610rcu_preempt0-21swapper/121:16:211
81610rcu_preempt0-21swapper/120:10:211
81610rcu_preempt0-21swapper/021:46:090
81600rcu_preempt3297-21ssh23:28:241
81600rcu_preempt28338-21ssh00:04:061
81600rcu_preempt12680-21ssh23:41:101
81600rcu_preempt0-21swapper/122:49:091
81600rcu_preempt0-21swapper/120:04:071
81600rcu_preempt0-21swapper/023:12:250
81600rcu_preempt0-21swapper/022:08:320
81600rcu_preempt0-21swapper/000:11:520
81600rcu_preempt0-21swapper/000:00:230
81590rcu_preempt6363-21ssh21:58:391
81590rcu_preempt25766-21ssh22:25:421
81590rcu_preempt19459-21ssh22:17:021
81590rcu_preempt13897-21ssh23:43:540
81590rcu_preempt11819-21ssh22:53:201
81590rcu_preempt0-21swapper/123:37:541
81590rcu_preempt0-21swapper/121:45:411
81590rcu_preempt0-21swapper/121:10:231
81590rcu_preempt0-21swapper/121:04:021
81590rcu_preempt0-21swapper/100:35:471
81590rcu_preempt0-21swapper/023:01:340
81590rcu_preempt0-21swapper/000:35:060
81580rcu_preempt8918-21ssh00:23:540
81580rcu_preempt8317-21ssh00:22:321
81580rcu_preempt3916-21ssh00:15:271
81580rcu_preempt3916-21ssh00:15:271
81580rcu_preempt3382-21ssh23:28:350
81580rcu_preempt24733-21ssh21:38:001
81580rcu_preempt24733-21ssh21:38:001
81580rcu_preempt24626-21ssh23:11:171
81580rcu_preempt23185-21ssh23:56:441
81580rcu_preempt13158-21ssh22:08:211
81580rcu_preempt0-21swapper/122:00:371
81580rcu_preempt0-21swapper/120:46:421
81580rcu_preempt0-21swapper/119:39:041
81580rcu_preempt0-21swapper/119:24:021
81580rcu_preempt0-21swapper/100:26:281
81580rcu_preempt0-21swapper/023:49:030
81580rcu_preempt0-21swapper/021:13:570
81570rcu_preempt16434-21ssh23:46:551
81570rcu_preempt15677-21latency_hist19:40:050
81570rcu_preempt0-21swapper/123:53:141
81570rcu_preempt0-21swapper/121:41:281
81570rcu_preempt0-21swapper/121:41:281
81570rcu_preempt0-21swapper/120:21:101
81570rcu_preempt0-21swapper/120:21:101
81570rcu_preempt0-21swapper/119:54:061
81570rcu_preempt0-21swapper/023:19:010
81570rcu_preempt0-21swapper/020:49:460
81570rcu_preempt0-21swapper/019:30:240
81570rcu_preempt0-21swapper/000:25:410
81560rcu_preempt9752-21ssh22:03:300
81560rcu_preempt22368-21/usr/sbin/munin23:09:080
81560rcu_preempt20940-21ssh21:32:110
81560rcu_preempt20023-21kworker/0:119:09:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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