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2026-03-26 - 12:51
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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 Thu Mar 26, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt19159-21sh21:40:161
81790rcu_preempt0-21swapper/120:19:371
81780rcu_preempt19-21ksoftirqd/123:13:121
81770rcu_preempt0-21swapper/100:41:261
81760rcu_preempt15918-21apt-get23:39:481
81760rcu_preempt0-21swapper/122:08:511
81760rcu_preempt0-21swapper/121:58:381
89850750irq/17-ehci_hcd945-21usb-storage00:14:271
89850750irq/17-ehci_hcd171rcuc/122:10:401
81750rcu_preempt0-21swapper/123:56:041
81750rcu_preempt0-21swapper/120:09:371
81740rcu_preempt22847-21sh21:49:210
81740rcu_preempt22847-21sh21:49:210
81730rcu_preempt0-21swapper/123:15:151
81730rcu_preempt0-21swapper/022:49:540
81720rcu_preempt30018-21ssh22:01:310
81710rcu_preempt0-21swapper/022:04:520
81710rcu_preempt0-21swapper/021:05:000
81700rcu_preempt19721-21ssh23:45:250
81690rcu_preempt0-21swapper/023:10:380
81680rcu_preempt0-21swapper/021:37:290
81670rcu_preempt13824-21latency_hist19:44:370
81660rcu_preempt0-21swapper/119:11:201
81650rcu_preempt27718-21ssh22:59:530
81650rcu_preempt19-21ksoftirqd/121:25:421
147650650irq/28-eth0-rx-5511-21/usr/sbin/munin19:09:550
81640rcu_preempt0-21swapper/023:18:400
81640rcu_preempt0-21swapper/022:20:420
81640rcu_preempt0-21swapper/000:38:130
81630rcu_preempt2138-21snmpd20:32:020
81630rcu_preempt19-21ksoftirqd/123:05:381
81630rcu_preempt19-21ksoftirqd/123:00:531
81630rcu_preempt15804-21latency_hist23:39:380
81630rcu_preempt0-21swapper/020:19:580
81630rcu_preempt0-21swapper/020:19:580
81620rcu_preempt0-21swapper/020:27:410
81620rcu_preempt0-21swapper/019:15:030
81620rcu_preempt0-21swapper/000:31:160
81610rcu_preempt27007-21rm22:58:520
81610rcu_preempt16313-21munin-run19:54:370
81610rcu_preempt0-21swapper/023:42:010
81610rcu_preempt0-21swapper/000:20:480
6176996145cyclictest945-21usb-storage19:23:081
81600rcu_preempt0-21swapper/023:23:020
81600rcu_preempt0-21swapper/022:29:560
81600rcu_preempt0-21swapper/020:10:010
81600rcu_preempt0-21swapper/000:15:030
89850590irq/17-ehci_hcd945-21usb-storage23:19:461
81590rcu_preempt31895-21ssh23:07:510
81590rcu_preempt20385-21ssh22:45:041
81590rcu_preempt16398-21ssh22:38:261
81590rcu_preempt0-21swapper/120:24:541
81590rcu_preempt0-21swapper/100:38:411
81590rcu_preempt0-21swapper/021:49:540
81590rcu_preempt0-21swapper/019:24:510
81590rcu_preempt0-21swapper/000:42:240
81580rcu_preempt4755-21ssh00:21:421
81580rcu_preempt30672-21ssh00:07:100
81580rcu_preempt3018-21ssh00:18:211
81580rcu_preempt27645-21sshd20:35:371
81580rcu_preempt20051-21ssh23:46:331
81580rcu_preempt10370-21ssh23:29:110
81580rcu_preempt0-21swapper/123:25:031
81580rcu_preempt0-21swapper/122:41:341
81580rcu_preempt0-21swapper/122:29:181
81580rcu_preempt0-21swapper/122:22:011
81580rcu_preempt0-21swapper/122:16:541
81580rcu_preempt0-21swapper/120:54:321
81580rcu_preempt0-21swapper/119:54:251
81580rcu_preempt0-21swapper/100:05:131
81580rcu_preempt0-21swapper/021:39:550
89450570irq/17-ehci_hcd27247-21munin-run22:59:371
81570rcu_preempt9478-21ssh21:23:400
81570rcu_preempt23420-21ssh23:54:021
81570rcu_preempt21129-21ssh22:46:170
81570rcu_preempt14433-21ssh21:32:421
81570rcu_preempt12609-21ssh23:32:440
81570rcu_preempt0-21swapper/122:30:171
81570rcu_preempt0-21swapper/122:01:031
81570rcu_preempt0-21swapper/121:53:311
81570rcu_preempt0-21swapper/121:49:341
81570rcu_preempt0-21swapper/121:49:341
81570rcu_preempt0-21swapper/121:20:041
81570rcu_preempt0-21swapper/120:41:081
81570rcu_preempt0-21swapper/120:19:571
81570rcu_preempt0-21swapper/120:19:571
81570rcu_preempt0-21swapper/120:05:001
81570rcu_preempt0-21swapper/119:45:161
81570rcu_preempt0-21swapper/100:00:281
81570rcu_preempt0-21swapper/022:38:210
81570rcu_preempt0-21swapper/020:05:580
81570rcu_preempt0-21swapper/019:49:370
81560rcu_preempt25228-21ssh23:56:160
81560rcu_preempt17103-21grep22:39:510
81560rcu_preempt0-21swapper/123:36:291
81560rcu_preempt0-21swapper/122:51:071
81560rcu_preempt0-21swapper/121:18:191
81560rcu_preempt0-21swapper/121:14:041
81560rcu_preempt0-21swapper/121:07:231
81560rcu_preempt0-21swapper/121:02:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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