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2026-03-14 - 13:15
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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 Mar 14, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811070rcu_preempt19-21ksoftirqd/122:18:161
81800rcu_preempt0-21swapper/022:20:400
81780rcu_preempt3198-21df_abs20:39:181
81780rcu_preempt0-21swapper/119:39:221
81780rcu_preempt0-21swapper/100:34:221
81770rcu_preempt19-21ksoftirqd/121:59:101
81750rcu_preempt19-21ksoftirqd/121:33:261
81740rcu_preempt30073-21/usr/sbin/munin22:49:310
81730rcu_preempt13727-21ssh22:18:020
147850730irq/30-eth0-tx-945-21usb-storage22:19:371
81720rcu_preempt19-21ksoftirqd/123:30:371
81720rcu_preempt19-21ksoftirqd/121:21:561
81710rcu_preempt19-21ksoftirqd/123:22:441
81710rcu_preempt0-21swapper/023:39:190
81710rcu_preempt0-21swapper/022:09:500
81700rcu_preempt32223-21sh21:50:200
81700rcu_preempt11674-21diskmemload23:36:170
81700rcu_preempt0-21swapper/023:23:100
81700rcu_preempt0-21swapper/000:39:290
81700rcu_preempt0-21swapper/000:02:230
81690rcu_preempt2138-21snmpd22:42:370
81690rcu_preempt1155-21apt-get21:54:160
81690rcu_preempt0-21swapper/119:09:271
81690rcu_preempt0-21swapper/023:52:400
81690rcu_preempt0-21swapper/022:45:110
81690rcu_preempt0-21swapper/021:27:520
81680rcu_preempt8881-21munin-run22:09:050
81680rcu_preempt1037-21ntp_states22:54:280
81680rcu_preempt0-21swapper/020:09:520
81660rcu_preempt0-21swapper/023:10:200
81660rcu_preempt0-21swapper/023:03:370
81650rcu_preempt0-21swapper/022:35:520
81640rcu_preempt12525-21ssh23:16:291
81640rcu_preempt0-21swapper/122:06:411
81640rcu_preempt0-21swapper/100:28:091
81640rcu_preempt0-21swapper/100:15:241
81640rcu_preempt0-21swapper/021:16:020
81640rcu_preempt0-21swapper/020:36:060
89850630irq/17-ehci_hcd945-21usb-storage23:49:221
81620rcu_preempt0-21swapper/119:21:251
81620rcu_preempt0-21swapper/100:41:391
81620rcu_preempt0-21swapper/023:26:060
81620rcu_preempt0-21swapper/022:00:360
81620rcu_preempt0-21swapper/021:44:190
81620rcu_preempt0-21swapper/000:29:190
89850610irq/17-ehci_hcd30125-21kworker/1:120:20:091
81610rcu_preempt5861-21ssh00:04:341
81610rcu_preempt3712-21ssh00:01:191
81610rcu_preempt0-21swapper/122:58:511
81610rcu_preempt0-21swapper/121:53:481
81610rcu_preempt0-21swapper/120:24:271
81600rcu_preempt29621-21ssh22:48:071
81600rcu_preempt23694-21ssh22:36:161
81600rcu_preempt21833-21/usr/sbin/munin00:39:050
81600rcu_preempt18660-21ssh22:26:451
81600rcu_preempt18258-21kworker/0:019:09:210
81600rcu_preempt0-21swapper/123:05:241
81600rcu_preempt0-21swapper/122:11:461
81600rcu_preempt0-21swapper/120:29:251
81600rcu_preempt0-21swapper/100:31:431
81600rcu_preempt0-21swapper/100:13:531
81600rcu_preempt0-21swapper/022:29:170
81600rcu_preempt0-21swapper/022:29:170
81600rcu_preempt0-21swapper/000:22:270
81590rcu_preempt738-21ssh23:55:201
81590rcu_preempt28994-21grep20:14:050
81590rcu_preempt18519-21ssh22:26:170
81590rcu_preempt17216-21sendmail_mailtr19:24:260
81590rcu_preempt1555-21latency_hist20:34:050
81590rcu_preempt14071-21ssh21:17:461
81590rcu_preempt0-21swapper/123:45:021
81590rcu_preempt0-21swapper/122:49:401
81590rcu_preempt0-21swapper/122:40:251
81590rcu_preempt0-21swapper/121:54:231
81590rcu_preempt0-21swapper/121:44:421
81590rcu_preempt0-21swapper/121:35:241
81590rcu_preempt0-21swapper/121:26:541
81590rcu_preempt0-21swapper/120:35:251
81590rcu_preempt0-21swapper/023:08:030
81590rcu_preempt0-21swapper/019:49:290
81580rcu_preempt22603-21ssh23:35:041
81580rcu_preempt21318-21ssh22:31:571
81580rcu_preempt21318-21ssh22:31:571
81580rcu_preempt20401-21ssh23:31:350
81580rcu_preempt16548-21ssh00:29:010
81580rcu_preempt12715-21ssh00:20:031
81580rcu_preempt0-21swapper/123:27:351
81580rcu_preempt0-21swapper/123:09:581
81580rcu_preempt0-21swapper/121:43:081
81580rcu_preempt0-21swapper/121:07:381
81580rcu_preempt0-21swapper/120:52:001
81580rcu_preempt0-21swapper/023:57:550
81580rcu_preempt0-21swapper/021:04:180
81580rcu_preempt0-21swapper/019:59:470
81580rcu_preempt0-21swapper/019:19:210
81580rcu_preempt0-21swapper/000:09:260
89850570irq/17-ehci_hcd945-21usb-storage23:39:241
81570rcu_preempt4673-21ssh23:01:281
81570rcu_preempt0-21swapper/120:54:361
81570rcu_preempt0-21swapper/120:18:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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