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2026-05-18 - 03:43
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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 May 18, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt19-21ksoftirqd/121:19:211
81780rcu_preempt19429-21fgrep22:41:581
81770rcu_preempt19-21ksoftirqd/121:26:181
81760rcu_preempt19-21ksoftirqd/121:33:571
81740rcu_preempt4174-21ssh00:15:240
81740rcu_preempt2315-21ntp_states19:06:560
81730rcu_preempt19-21ksoftirqd/123:28:481
81720rcu_preempt32361-21if_can023:06:520
81720rcu_preempt11178-21ssh21:28:560
81710rcu_preempt4226-21ssh23:14:181
81710rcu_preempt25846-21sshd23:54:040
81710rcu_preempt0-21swapper/021:12:080
89950700irq/17-ehci_hcd945-21usb-storage23:22:461
81700rcu_preempt14398-21ssh00:32:440
81700rcu_preempt0-21swapper/022:48:470
81680rcu_preempt25574-21sh21:55:180
81680rcu_preempt0-21swapper/023:48:560
81670rcu_preempt14905-21/usr/sbin/munin21:36:340
81670rcu_preempt0-21swapper/023:03:090
81660rcu_preempt26743-21ssh22:56:470
81660rcu_preempt24646-21/usr/sbin/munin22:51:550
81650rcu_preempt0-21swapper/119:09:591
81650rcu_preempt0-21swapper/022:22:390
81650rcu_preempt0-21swapper/000:09:080
81640rcu_preempt0-21swapper/023:36:460
81630rcu_preempt17177-21ssh00:37:341
81630rcu_preempt0-21swapper/122:48:051
81630rcu_preempt0-21swapper/022:07:110
81620rcu_preempt7218-21ssh22:21:131
81620rcu_preempt22727-21ssh23:47:481
81620rcu_preempt17838-21ssh21:41:450
81620rcu_preempt0-21swapper/023:45:560
81610rcu_preempt26213-21ssh22:55:521
81610rcu_preempt24268-21ssh21:51:581
81610rcu_preempt2309-1kworker/0:0H22:38:360
81610rcu_preempt21974-21ssh21:47:401
81610rcu_preempt0-21swapper/122:36:021
81610rcu_preempt0-21swapper/122:36:021
81610rcu_preempt0-21swapper/122:09:491
81610rcu_preempt0-21swapper/121:57:301
81610rcu_preempt0-21swapper/121:42:551
81610rcu_preempt0-21swapper/121:14:121
81610rcu_preempt0-21swapper/100:23:041
81610rcu_preempt0-21swapper/022:11:490
81610rcu_preempt0-21swapper/021:46:450
81610rcu_preempt0-21swapper/021:21:500
146650610irq/31-eth0-tx-41ktimersoftd/022:28:210
81600rcu_preempt31036-21ssh00:03:231
81600rcu_preempt2806-21if_err_wlan023:11:530
81600rcu_preempt25301-21ssh23:52:111
81600rcu_preempt18168-21ssh23:40:241
81600rcu_preempt0-21swapper/122:37:521
81600rcu_preempt0-21swapper/122:24:051
81600rcu_preempt0-21swapper/122:12:121
81600rcu_preempt0-21swapper/120:36:491
81600rcu_preempt0-21swapper/120:21:461
81600rcu_preempt0-21swapper/119:54:551
81600rcu_preempt0-21swapper/100:34:531
81600rcu_preempt0-21swapper/023:17:120
81600rcu_preempt0-21swapper/019:36:470
81600rcu_preempt0-21swapper/000:24:040
81590rcu_preempt28072-21ssh22:58:081
81590rcu_preempt12221-21ssh22:29:371
81590rcu_preempt0-21swapper/123:57:021
81590rcu_preempt0-21swapper/123:45:021
81590rcu_preempt0-21swapper/123:35:211
81590rcu_preempt0-21swapper/123:06:581
81590rcu_preempt0-21swapper/123:02:011
81590rcu_preempt0-21swapper/121:36:511
81590rcu_preempt0-21swapper/121:06:551
81590rcu_preempt0-21swapper/120:12:101
81590rcu_preempt0-21swapper/100:19:161
81590rcu_preempt0-21swapper/021:18:200
81590rcu_preempt0-21swapper/000:03:180
81580rcu_preempt3883-21ssh00:13:531
81580rcu_preempt17090-21ssh00:37:180
81580rcu_preempt11566-21switchtime23:26:590
81580rcu_preempt0-21swapper/123:17:501
81580rcu_preempt0-21swapper/122:06:221
81580rcu_preempt0-21swapper/121:31:161
81580rcu_preempt0-21swapper/120:58:291
81580rcu_preempt0-21swapper/120:58:291
81580rcu_preempt0-21swapper/120:26:331
81580rcu_preempt0-21swapper/119:56:571
81580rcu_preempt0-21swapper/119:46:221
81580rcu_preempt0-21swapper/119:46:221
81580rcu_preempt0-21swapper/119:31:471
81580rcu_preempt0-21swapper/100:31:301
81580rcu_preempt0-21swapper/100:08:591
81580rcu_preempt0-21swapper/022:42:230
81580rcu_preempt0-21swapper/022:31:460
81580rcu_preempt0-21swapper/022:31:460
146650580irq/31-eth0-tx-41ktimersoftd/021:59:260
81570rcu_preempt10097-21ssh23:25:460
81570rcu_preempt0-21swapper/021:38:240
81570rcu_preempt0-21swapper/019:27:560
81570rcu_preempt0-21swapper/000:21:060
81560rcu_preempt11765-21cpu19:46:470
81560rcu_preempt0-21swapper/020:46:510
81560rcu_preempt0-21swapper/020:01:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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