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2026-06-14 - 11:43
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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 376 highest latencies:
System rackcslot3.osadl.org (updated Sun Jun 14, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt2192-21snmpd00:22:421
81750rcu_preempt29670-21latency_hist23:58:501
89950740irq/17-ehci_hcd945-21usb-storage00:41:561
81740rcu_preempt31911-21sh22:01:150
81740rcu_preempt26245-21ssh22:50:431
81740rcu_preempt15747-21sh23:32:031
81730rcu_preempt11461-21sort19:29:051
81720rcu_preempt0-21swapper/023:09:190
81710rcu_preempt553-21diskstats23:04:051
81700rcu_preempt12519-21ssh23:25:081
81700rcu_preempt0-21swapper/123:47:471
81700rcu_preempt0-21swapper/121:54:111
81700rcu_preempt0-21swapper/022:14:120
81700rcu_preempt0-21swapper/000:32:150
81690rcu_preempt21736-21ssh21:43:141
81690rcu_preempt0-21swapper/122:08:071
81690rcu_preempt0-21swapper/121:34:171
81690rcu_preempt0-21swapper/021:33:370
81680rcu_preempt24435-21wc23:48:501
81680rcu_preempt15551-21ssh21:31:021
81680rcu_preempt0-21swapper/123:16:461
81680rcu_preempt0-21swapper/122:02:011
81680rcu_preempt0-21swapper/121:49:131
81680rcu_preempt0-21swapper/023:54:140
81680rcu_preempt0-21swapper/023:05:560
81680rcu_preempt0-21swapper/020:29:110
81670rcu_preempt6622-21sh00:15:591
81670rcu_preempt12412-21grep19:33:491
81670rcu_preempt10325-21rm21:21:481
81670rcu_preempt0-21swapper/122:44:131
81660rcu_preempt0-21swapper/121:15:041
81660rcu_preempt0-21swapper/100:09:211
81660rcu_preempt0-21swapper/022:57:500
81650rcu_preempt16224-21munin-run23:33:510
81650rcu_preempt0-21swapper/123:09:041
81650rcu_preempt0-21swapper/122:58:291
81650rcu_preempt0-21swapper/122:23:111
81650rcu_preempt0-21swapper/120:24:081
81650rcu_preempt0-21swapper/119:09:071
81650rcu_preempt0-21swapper/022:05:100
81650rcu_preempt0-21swapper/019:44:060
81640rcu_preempt0-21swapper/122:40:381
81640rcu_preempt0-21swapper/120:09:321
81640rcu_preempt0-21swapper/023:40:420
81640rcu_preempt0-21swapper/000:15:580
81630rcu_preempt5238-21diskmemload21:24:110
81630rcu_preempt3-21ksoftirqd/021:43:360
81630rcu_preempt29145-21sh20:39:051
81630rcu_preempt21181-21ssh22:41:180
81630rcu_preempt0-21swapper/119:49:131
81630rcu_preempt0-21swapper/100:30:211
81630rcu_preempt0-21swapper/023:59:060
81630rcu_preempt0-21swapper/020:59:050
81630rcu_preempt0-21swapper/019:39:070
81630rcu_preempt0-21swapper/019:09:030
81630rcu_preempt0-21swapper/000:28:160
89950620irq/17-ehci_hcd945-21usb-storage00:08:491
81620rcu_preempt31513-21ssh00:01:171
81620rcu_preempt22574-21ssh22:44:090
81620rcu_preempt15183-21ssh22:29:231
81620rcu_preempt11105-21ssh00:25:361
81620rcu_preempt0-21swapper/122:17:231
81620rcu_preempt0-21swapper/122:12:231
81620rcu_preempt0-21swapper/022:24:160
81620rcu_preempt0-21swapper/021:54:110
81620rcu_preempt0-21swapper/020:49:050
89950610irq/17-ehci_hcd945-21usb-storage19:43:311
81610rcu_preempt30075-21/usr/sbin/munin22:59:121
81610rcu_preempt16926-21ssh00:37:211
81610rcu_preempt0-21swapper/120:19:131
81610rcu_preempt0-21swapper/023:22:150
89950600irq/17-ehci_hcd945-21usb-storage22:25:091
81600rcu_preempt5419-21ssh21:13:590
81600rcu_preempt5238-21diskmemload22:38:271
81600rcu_preempt3-21ksoftirqd/022:53:060
81600rcu_preempt19-21ksoftirqd/121:44:051
81600rcu_preempt18368-21ssh23:37:081
81600rcu_preempt0-21swapper/022:29:100
81600rcu_preempt0-21swapper/019:34:130
81590rcu_preempt21327-21ssh23:42:501
81590rcu_preempt19030-21ssh22:38:160
81590rcu_preempt10073-21ssh23:20:581
81590rcu_preempt0-21swapper/120:31:031
81590rcu_preempt0-21swapper/119:19:071
81590rcu_preempt0-21swapper/023:24:170
81590rcu_preempt0-21swapper/019:54:140
89550580irq/17-ehci_hcd5238-21diskmemload21:37:010
81580rcu_preempt9514-21ssh21:19:210
81580rcu_preempt26119-21ssh21:49:480
81580rcu_preempt18363-21ssh23:37:070
81580rcu_preempt0-21swapper/120:05:581
81580rcu_preempt0-21swapper/020:44:120
81580rcu_preempt0-21swapper/020:04:030
81570rcu_preempt0-21swapper/121:27:091
81570rcu_preempt0-21swapper/120:58:501
81570rcu_preempt0-21swapper/120:50:031
81570rcu_preempt0-21swapper/119:44:151
81570rcu_preempt0-21swapper/023:45:070
81570rcu_preempt0-21swapper/022:23:090
81570rcu_preempt0-21swapper/020:40:210
81570rcu_preempt0-21swapper/000:38:460
81560rcu_preempt30777-21ssh22:59:100
81560rcu_preempt0-21swapper/120:54:171
81560rcu_preempt0-21swapper/120:14:121
81560rcu_preempt0-21swapper/023:50:220
81560rcu_preempt0-21swapper/021:46:100
81550rcu_preempt4113-21sshd00:10:210
81550rcu_preempt30746-21memory20:44:111
81550rcu_preempt0-21swapper/121:08:011
81550rcu_preempt0-21swapper/023:15:330
81550rcu_preempt0-21swapper/020:19:110
81540rcu_preempt9209-21ssh00:23:100
81540rcu_preempt0-21swapper/020:58:110
81540rcu_preempt0-21swapper/000:39:330
81540rcu_preempt0-21swapper/000:04:290
81530rcu_preempt4353-21df_inode21:09:061
81530rcu_preempt28916-1kworker/0:0H19:50:550
81530rcu_preempt0-21swapper/022:10:470
81530rcu_preempt0-21swapper/019:14:000
81520rcu_preempt0-21swapper/120:34:041
81520rcu_preempt0-21swapper/119:58:211
81520rcu_preempt0-21swapper/021:09:090
81520rcu_preempt0-21swapper/019:59:040
81510rcu_preempt0-21swapper/119:16:001
81510rcu_preempt0-21swapper/021:08:200
81510rcu_preempt0-21swapper/019:30:200
81500rcu_preempt3-21ksoftirqd/020:11:000
81500rcu_preempt11001-21users19:24:150
7252994945cyclictest945-21usb-storage20:34:130
89950480irq/17-ehci_hcd945-21usb-storage19:59:011
81480rcu_preempt0-21swapper/019:19:420
146250440irq/28-eth0-rx-0-21swapper/119:27:241
7252994339cyclictest945-21usb-storage20:24:110
81410rcu_preempt22728-21df20:14:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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