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2026-06-13 - 12:13
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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 Sat Jun 13, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81840rcu_preempt1130-21ssh22:27:391
81770rcu_preempt0-21swapper/123:23:381
81760rcu_preempt19-21ksoftirqd/123:43:021
81760rcu_preempt19-21ksoftirqd/100:35:591
81760rcu_preempt19-21ksoftirqd/100:31:181
89950750irq/17-ehci_hcd945-21usb-storage22:56:231
81750rcu_preempt5444-21cpuspeed_turbos19:53:571
81740rcu_preempt0-21swapper/100:24:011
81730rcu_preempt5230-21grep19:53:441
81730rcu_preempt26644-21memory22:14:051
81720rcu_preempt24942-21sh22:10:240
81720rcu_preempt0-21swapper/021:34:420
81710rcu_preempt30300-1kworker/0:2H23:25:190
81710rcu_preempt2180-21ssh22:29:051
81710rcu_preempt0-21swapper/023:34:090
81710rcu_preempt0-21swapper/019:54:070
81700rcu_preempt19-21ksoftirqd/123:44:411
81700rcu_preempt12725-21sshd20:20:090
81700rcu_preempt0-21swapper/021:14:050
81690rcu_preempt19-21ksoftirqd/123:13:331
81690rcu_preempt19-21ksoftirqd/122:51:021
81690rcu_preempt19-21ksoftirqd/121:58:251
81680rcu_preempt0-21swapper/022:17:570
81680rcu_preempt0-21swapper/021:56:180
81680rcu_preempt0-21swapper/021:51:590
81670rcu_preempt0-21swapper/023:41:130
81670rcu_preempt0-21swapper/022:57:580
81660rcu_preempt0-21swapper/023:18:430
81650rcu_preempt4619-21munin-run00:38:450
81640rcu_preempt10743-21grep22:44:100
81640rcu_preempt0-21swapper/023:53:020
81640rcu_preempt0-21swapper/000:39:410
146650640irq/31-eth0-tx-18461-21apache219:09:571
81630rcu_preempt20835-21ssh23:04:030
81630rcu_preempt0-21swapper/022:39:040
81630rcu_preempt0-21swapper/022:39:040
81630rcu_preempt0-21swapper/022:07:450
81630rcu_preempt0-21swapper/021:48:450
81630rcu_preempt0-21swapper/019:39:080
81620rcu_preempt19-21ksoftirqd/123:50:071
81620rcu_preempt0-21swapper/023:20:550
81610rcu_preempt0-21swapper/022:19:080
81610rcu_preempt0-21swapper/000:05:270
81600rcu_preempt26146-21kworker/0:119:08:540
81600rcu_preempt23208-21ssh22:08:401
89950590irq/17-ehci_hcd0-21swapper/123:05:281
81590rcu_preempt6042-21ssh00:39:291
81590rcu_preempt19122-21ssh00:01:220
81590rcu_preempt19-21ksoftirqd/123:37:261
81590rcu_preempt0-21swapper/122:44:041
81590rcu_preempt0-21swapper/121:51:391
81590rcu_preempt0-21swapper/121:47:461
81590rcu_preempt0-21swapper/119:23:561
81590rcu_preempt0-21swapper/021:40:380
146550590irq/30-eth0-tx-28702-21ssh00:22:490
81580rcu_preempt8685-21ssh21:40:171
81580rcu_preempt3467-21ssh21:31:241
81580rcu_preempt3467-21ssh21:31:241
81580rcu_preempt26501-21ssh00:17:031
81580rcu_preempt24889-21ssh22:10:141
81580rcu_preempt20344-21ssh22:03:180
81580rcu_preempt17018-21ssh23:58:310
81580rcu_preempt11282-21ssh23:46:540
81580rcu_preempt0-21swapper/123:26:281
81580rcu_preempt0-21swapper/122:38:341
81580rcu_preempt0-21swapper/121:36:021
81580rcu_preempt0-21swapper/121:22:561
81580rcu_preempt0-21swapper/121:04:011
81580rcu_preempt0-21swapper/120:09:061
81580rcu_preempt0-21swapper/119:59:101
81580rcu_preempt0-21swapper/100:13:151
81580rcu_preempt0-21swapper/023:09:220
81580rcu_preempt0-21swapper/022:49:260
81580rcu_preempt0-21swapper/021:31:240
81580rcu_preempt0-21swapper/021:31:240
81580rcu_preempt0-21swapper/020:34:090
81580rcu_preempt0-21swapper/000:13:130
81570rcu_preempt8648-21ssh22:40:481
81570rcu_preempt8648-21ssh22:40:481
81570rcu_preempt534-21ssh21:25:361
81570rcu_preempt32508-21munin-run19:33:440
81570rcu_preempt31382-21ssh22:23:520
81570rcu_preempt1841-21ssh00:33:400
81570rcu_preempt0-21swapper/123:31:161
81570rcu_preempt0-21swapper/123:15:161
81570rcu_preempt0-21swapper/123:01:221
81570rcu_preempt0-21swapper/122:19:111
81570rcu_preempt0-21swapper/122:03:091
81570rcu_preempt0-21swapper/120:48:441
81570rcu_preempt0-21swapper/100:03:511
81570rcu_preempt0-21swapper/100:03:091
81570rcu_preempt0-21swapper/020:49:220
81570rcu_preempt0-21swapper/020:31:040
81560rcu_preempt26589-21ssh00:17:250
81560rcu_preempt2085-21ssh22:29:030
81560rcu_preempt19240-21ssh23:00:280
81560rcu_preempt18747-21open_files20:44:070
81560rcu_preempt0-21swapper/121:15:171
81560rcu_preempt0-21swapper/120:53:531
81560rcu_preempt0-21swapper/120:41:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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