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2026-06-03 - 05:30
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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 all highest latencies:
System rackcslot3.osadl.org (updated Wed Jun 03, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81810rcu_preempt8677-21ntp_states22:03:181
81790rcu_preempt0-21swapper/100:42:071
81780rcu_preempt0-21swapper/122:47:431
81770rcu_preempt26411-21ssh22:36:371
81760rcu_preempt0-21swapper/122:50:001
81760rcu_preempt0-21swapper/100:33:111
81750rcu_preempt19-21ksoftirqd/123:11:071
81750rcu_preempt0-21swapper/122:54:451
81740rcu_preempt7934-21munin-run23:02:541
81740rcu_preempt0-21swapper/121:38:121
146650730irq/31-eth0-tx-945-21usb-storage22:13:481
81720rcu_preempt5189-21ssh23:56:500
81720rcu_preempt0-21swapper/023:52:460
81710rcu_preempt21748-21ntp_states21:28:170
81710rcu_preempt0-21swapper/021:58:160
89950700irq/17-ehci_hcd18141-21latency_hist21:22:541
89950700irq/17-ehci_hcd0-21swapper/123:07:541
81700rcu_preempt0-21swapper/022:23:130
81690rcu_preempt28874-21diskmemload23:39:490
81690rcu_preempt0-21swapper/023:59:390
81690rcu_preempt0-21swapper/020:10:550
81690rcu_preempt0-21swapper/020:10:550
81680rcu_preempt12334-21diskmemload00:33:560
81680rcu_preempt0-21swapper/019:08:180
146650680irq/31-eth0-tx-41ktimersoftd/022:38:070
81660rcu_preempt0-21swapper/023:35:380
81650rcu_preempt11555-21if_err_can021:08:120
81640rcu_preempt2192-21snmpd21:16:150
81640rcu_preempt19-21ksoftirqd/100:07:481
81640rcu_preempt0-21swapper/119:11:561
81640rcu_preempt0-21swapper/022:46:320
81640rcu_preempt0-21swapper/021:23:200
81630rcu_preempt24258-21ssh22:33:060
81630rcu_preempt0-21swapper/022:18:190
81620rcu_preempt390-21/usr/sbin/munin21:48:161
81620rcu_preempt29472-21df21:43:070
81620rcu_preempt19-21ksoftirqd/121:43:371
81620rcu_preempt0-21swapper/000:38:190
81610rcu_preempt0-21swapper/020:58:100
81610rcu_preempt0-21swapper/000:04:460
89950600irq/17-ehci_hcd945-21usb-storage19:14:331
89550600irq/17-ehci_hcd0-21swapper/121:30:121
81600rcu_preempt19-21ksoftirqd/123:14:021
81600rcu_preempt0-21swapper/023:29:160
81600rcu_preempt0-21swapper/023:27:550
81600rcu_preempt0-21swapper/021:38:170
81600rcu_preempt0-21swapper/000:28:110
81600rcu_preempt0-21swapper/000:23:190
81590rcu_preempt27166-21/usr/sbin/munin20:03:210
81590rcu_preempt19-21ksoftirqd/123:59:341
81590rcu_preempt18905-21/usr/sbin/munin19:17:540
81590rcu_preempt0-21swapper/022:03:130
81580rcu_preempt4512-21ssh21:56:251
81580rcu_preempt25945-21ssh23:34:121
81580rcu_preempt2423-21ssh22:52:340
81580rcu_preempt23712-21ssh22:32:041
81580rcu_preempt2105-21grep20:28:190
81580rcu_preempt20344-21munin-run19:27:540
81580rcu_preempt17488-21ssh00:20:111
81580rcu_preempt12642-21ssh00:09:411
81580rcu_preempt12400-21ssh23:09:220
81580rcu_preempt0-21swapper/123:25:281
81580rcu_preempt0-21swapper/122:27:411
81580rcu_preempt0-21swapper/122:20:101
81580rcu_preempt0-21swapper/023:43:030
81580rcu_preempt0-21swapper/022:08:540
81580rcu_preempt0-21swapper/020:43:160
81570rcu_preempt31497-21ssh23:44:411
81570rcu_preempt17566-21ssh23:18:580
81570rcu_preempt14448-21ssh21:15:321
81570rcu_preempt0-21swapper/123:53:021
81570rcu_preempt0-21swapper/123:38:001
81570rcu_preempt0-21swapper/123:30:481
81570rcu_preempt0-21swapper/122:07:581
81570rcu_preempt0-21swapper/122:00:431
81570rcu_preempt0-21swapper/121:33:581
81570rcu_preempt0-21swapper/121:25:251
81570rcu_preempt0-21swapper/120:50:381
81570rcu_preempt0-21swapper/100:28:041
81570rcu_preempt0-21swapper/100:26:231
81570rcu_preempt0-21swapper/023:00:110
81570rcu_preempt0-21swapper/022:31:140
81570rcu_preempt0-21swapper/021:52:410
81570rcu_preempt0-21swapper/021:04:480
81570rcu_preempt0-21swapper/000:13:340
81570rcu_preempt0-21swapper/000:13:340
17652995748cyclictest945-21usb-storage21:03:181
81560rcu_preempt32665-21mii-tool20:23:120
81560rcu_preempt28274-21ssh22:38:491
81560rcu_preempt2192-21snmpd19:20:000
81560rcu_preempt1863-21ssh23:49:581
81560rcu_preempt17740-21ssh00:21:090
81560rcu_preempt17509-21ssh21:21:010
81560rcu_preempt0-21swapper/120:59:101
81560rcu_preempt0-21swapper/120:39:061
81560rcu_preempt0-21swapper/119:44:121
81560rcu_preempt0-21swapper/119:30:151
81560rcu_preempt0-21swapper/023:13:570
81550rcu_preempt9706-21ssh23:04:400
81550rcu_preempt22639-21memory19:43:100
81550rcu_preempt0-21swapper/123:22:371
81550rcu_preempt0-21swapper/121:09:261
81550rcu_preempt0-21swapper/119:35:571
81550rcu_preempt0-21swapper/119:26:181
81550rcu_preempt0-21swapper/022:53:210
81550rcu_preempt0-21swapper/021:33:250
81550rcu_preempt0-21swapper/019:58:160
81550rcu_preempt0-21swapper/000:09:530
81540rcu_preempt26994-21sshd19:59:591
81540rcu_preempt0-21swapper/120:57:211
81540rcu_preempt0-21swapper/120:12:371
81540rcu_preempt0-21swapper/120:12:371
81540rcu_preempt0-21swapper/022:15:190
81540rcu_preempt0-21swapper/021:57:180
81540rcu_preempt0-21swapper/020:57:330
89950530irq/17-ehci_hcd945-21usb-storage20:33:121
81530rcu_preempt0-21swapper/119:48:161
81530rcu_preempt0-21swapper/019:51:270
81520rcu_preempt6154-21/usr/sbin/munin20:48:120
81520rcu_preempt0-21swapper/119:41:001
81520rcu_preempt0-21swapper/020:39:060
81520rcu_preempt0-21swapper/019:40:380
17652995249cyclictest945-21usb-storage20:18:131
17652995249cyclictest945-21usb-storage00:13:551
17652995249cyclictest945-21usb-storage00:13:551
17652995248cyclictest945-21usb-storage20:28:361
17652995247cyclictest945-21usb-storage20:13:021
17652995247cyclictest945-21usb-storage19:56:221
146250520irq/28-eth0-rx-41ktimersoftd/020:22:080
81510rcu_preempt0-21swapper/019:35:190
17652995148cyclictest945-21usb-storage20:47:281
17652995148cyclictest945-21usb-storage20:23:121
17652995148cyclictest945-21usb-storage20:03:181
17652995047cyclictest945-21usb-storage19:18:181
81490rcu_preempt2625-21fw_conntrack20:33:110
146650460irq/31-eth0-tx-945-21usb-storage19:54:500
146250430irq/28-eth0-rx-29781-21/usr/sbin/munin20:13:070
89550320irq/17-ehci_hcd0-21swapper/019:30:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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