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2025-07-14 - 11:27
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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 Mon Jul 14, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811060rcu_preempt13330-21switchtime21:51:181
81720rcu_preempt5027-21ntp_states22:36:140
81720rcu_preempt0-21swapper/123:02:261
81710rcu_preempt0-21swapper/119:06:001
81690rcu_preempt28070-21sh23:20:321
81690rcu_preempt12374-1kworker/0:0H23:09:160
81690rcu_preempt0-21swapper/023:46:170
81680rcu_preempt3257-21diskmemload00:34:530
81680rcu_preempt0-21swapper/121:41:111
81680rcu_preempt0-21swapper/022:52:300
81670rcu_preempt30457-21sh00:25:231
81670rcu_preempt13532-1kworker/0:2H00:40:490
81670rcu_preempt0-21swapper/122:13:191
81670rcu_preempt0-21swapper/122:13:191
89950660irq/17-ehci_hcd22955-21ssh21:11:120
81660rcu_preempt25543-21munin-run23:15:520
81660rcu_preempt22301-21diskmemload21:37:171
81660rcu_preempt19030-21sh22:01:470
81660rcu_preempt16623-21sh22:57:550
81660rcu_preempt11104-21sh22:47:311
81660rcu_preempt0-21swapper/123:33:111
81660rcu_preempt0-21swapper/123:29:421
81660rcu_preempt0-21swapper/122:20:021
81660rcu_preempt0-21swapper/121:33:141
81650rcu_preempt17361-21munin-run00:00:521
81650rcu_preempt0-21swapper/122:42:351
81650rcu_preempt0-21swapper/121:17:441
81650rcu_preempt0-21swapper/120:56:121
81650rcu_preempt0-21swapper/120:21:211
81640rcu_preempt0-21swapper/021:55:430
81630rcu_preempt8527-21ssh22:43:030
81630rcu_preempt2131-21/usr/sbin/munin19:50:510
81630rcu_preempt0-21swapper/119:26:051
81630rcu_preempt0-21swapper/020:36:160
81630rcu_preempt0-21swapper/000:24:320
81630rcu_preempt0-21swapper/000:00:540
81620rcu_preempt7171-21if_eth023:41:101
81620rcu_preempt24376-21ssh21:13:251
81620rcu_preempt0-21swapper/123:20:581
81620rcu_preempt0-21swapper/122:39:581
81620rcu_preempt0-21swapper/121:45:541
81620rcu_preempt0-21swapper/023:21:080
81610rcu_preempt404-21ntp_states19:41:151
81610rcu_preempt23495-21proc_pri00:11:170
81610rcu_preempt0-21swapper/122:27:261
81610rcu_preempt0-21swapper/122:07:021
81610rcu_preempt0-21swapper/121:30:201
81610rcu_preempt0-21swapper/120:41:091
81610rcu_preempt0-21swapper/119:54:151
81610rcu_preempt0-21swapper/119:36:141
81610rcu_preempt0-21swapper/023:44:030
81610rcu_preempt0-21swapper/022:46:470
81610rcu_preempt0-21swapper/019:41:170
81610rcu_preempt0-21swapper/019:10:470
81600rcu_preempt26847-21ssh00:17:381
81600rcu_preempt14626-21munin-run23:55:521
81600rcu_preempt13094-21ps20:31:181
81600rcu_preempt0-21swapper/123:06:591
81600rcu_preempt0-21swapper/122:34:401
81600rcu_preempt0-21swapper/121:58:081
81600rcu_preempt0-21swapper/121:25:411
141350600irq/31-eth0-tx-41ktimersoftd/021:35:040
81590rcu_preempt31941-21sensors21:26:200
81590rcu_preempt29938-21if_can119:31:101
81590rcu_preempt28574-21ssh22:21:041
81590rcu_preempt27016-21timerandwakeup22:16:210
81590rcu_preempt19599-21ssh22:03:471
81590rcu_preempt19332-21ssh00:03:181
81590rcu_preempt0-21swapper/123:46:171
81590rcu_preempt0-21swapper/100:30:361
81590rcu_preempt0-21swapper/100:12:311
81590rcu_preempt0-21swapper/023:28:020
81590rcu_preempt0-21swapper/022:11:110
81590rcu_preempt0-21swapper/022:11:110
81590rcu_preempt0-21swapper/021:41:310
81590rcu_preempt0-21swapper/019:35:520
81590rcu_preempt0-21swapper/019:21:160
81580rcu_preempt3400-21munin-run19:55:510
81580rcu_preempt16921-21ps20:46:161
81580rcu_preempt13386-21ssh23:51:350
81580rcu_preempt0-21swapper/123:38:451
81580rcu_preempt0-21swapper/122:51:301
81580rcu_preempt0-21swapper/121:06:111
81580rcu_preempt0-21swapper/120:26:061
81580rcu_preempt0-21swapper/120:06:061
81580rcu_preempt0-21swapper/119:11:091
81580rcu_preempt0-21swapper/100:36:111
81580rcu_preempt0-21swapper/100:06:291
81580rcu_preempt0-21swapper/023:19:220
81580rcu_preempt0-21swapper/021:01:180
81580rcu_preempt0-21swapper/000:17:300
81570rcu_preempt2404-21ssh00:31:481
81570rcu_preempt11337-21ssh21:48:260
81570rcu_preempt0-21swapper/123:11:471
81570rcu_preempt0-21swapper/122:58:131
81570rcu_preempt0-21swapper/121:01:141
81570rcu_preempt0-21swapper/120:11:071
81570rcu_preempt0-21swapper/023:39:180
81570rcu_preempt0-21swapper/023:32:290
81560rcu_preempt5469-21ssh21:37:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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