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2026-06-03 - 18:33
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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 highest latencies:
System rackcslot3.osadl.org (updated Wed Jun 03, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt16236-21diskmemload11:33:081
81790rcu_preempt0-21swapper/007:42:490
81780rcu_preempt0-21swapper/007:08:150
81770rcu_preempt0-21swapper/112:27:571
81760rcu_preempt16236-21diskmemload09:48:191
81750rcu_preempt22045-21/usr/sbin/munin07:27:561
81740rcu_preempt0-21swapper/111:18:201
81730rcu_preempt30566-21ssh11:36:470
81730rcu_preempt26261-21sh09:28:471
81730rcu_preempt21590-21diskmemload09:21:311
81730rcu_preempt17421-1kworker/0:1H12:15:000
81730rcu_preempt12443-21munin-run08:57:561
81730rcu_preempt0-21swapper/110:51:401
81730rcu_preempt0-21swapper/109:45:171
81720rcu_preempt9505-21cron11:57:571
81720rcu_preempt14347-21ssh10:07:131
81710rcu_preempt26816-21processes07:43:211
81710rcu_preempt24855-21sh10:26:061
81710rcu_preempt19310-21ssh10:16:160
81710rcu_preempt19233-21ssh11:15:120
81710rcu_preempt10543-21kernelversion08:48:161
81710rcu_preempt0-21swapper/011:48:220
81710rcu_preempt0-21swapper/008:23:110
89550700irq/17-ehci_hcd17171-21/usr/sbin/munin07:08:091
81700rcu_preempt16236-21diskmemload10:02:050
81700rcu_preempt0-21swapper/110:40:311
81700rcu_preempt0-21swapper/108:08:161
89950690irq/17-ehci_hcd945-21usb-storage11:29:210
81690rcu_preempt5551-21ssh11:49:091
81680rcu_preempt30515-21munin-run09:37:570
81680rcu_preempt19-21ksoftirqd/110:19:331
81680rcu_preempt0-21swapper/011:26:270
81670rcu_preempt2192-21snmpd09:58:181
81670rcu_preempt0-21swapper/009:19:280
81670rcu_preempt0-21swapper/009:15:290
81660rcu_preempt19-21ksoftirqd/111:38:101
81660rcu_preempt11261-21sh11:59:530
81650rcu_preempt11105-21timerwakeupswit08:48:230
81650rcu_preempt0-21swapper/112:10:161
81650rcu_preempt0-21swapper/108:03:211
81640rcu_preempt12019-21munin-run11:02:570
81640rcu_preempt0-21swapper/111:26:061
81640rcu_preempt0-21swapper/110:13:171
81630rcu_preempt15344-21ssh12:08:120
81630rcu_preempt0-21swapper/112:03:121
81630rcu_preempt0-21swapper/009:23:480
81630rcu_preempt0-21swapper/008:03:190
81620rcu_preempt0-21swapper/012:23:230
81610rcu_preempt0-21swapper/008:28:200
89550600irq/17-ehci_hcd2192-21snmpd10:18:210
81600rcu_preempt14778-21ssh11:07:551
81600rcu_preempt0-21swapper/011:38:100
81600rcu_preempt0-21swapper/010:47:030
81600rcu_preempt0-21swapper/010:29:590
81600rcu_preempt0-21swapper/007:53:120
81590rcu_preempt19-21ksoftirqd/109:57:211
81590rcu_preempt0-21swapper/009:49:560
81590rcu_preempt0-21swapper/008:18:100
81590rcu_preempt0-21swapper/007:43:220
81580rcu_preempt32616-21ssh12:38:510
81580rcu_preempt13405-21ssh11:03:280
81580rcu_preempt0-21swapper/012:37:030
81580rcu_preempt0-21swapper/012:32:400
81580rcu_preempt0-21swapper/011:57:250
81580rcu_preempt0-21swapper/011:46:480
81580rcu_preempt0-21swapper/010:04:120
81580rcu_preempt0-21swapper/009:55:070
146550580irq/30-eth0-tx-0-21swapper/007:48:230
89950570irq/17-ehci_hcd0-21swapper/110:37:081
81570rcu_preempt0-21swapper/012:18:050
81570rcu_preempt0-21swapper/011:08:510
81570rcu_preempt0-21swapper/007:33:190
18248995748cyclictest945-21usb-storage09:04:501
18248995748cyclictest945-21usb-storage07:49:481
81560rcu_preempt29967-21ssh10:35:100
81560rcu_preempt19-21ksoftirqd/112:36:071
81560rcu_preempt0-21swapper/012:03:150
81560rcu_preempt0-21swapper/011:18:150
81560rcu_preempt0-21swapper/010:38:140
81560rcu_preempt0-21swapper/010:27:460
81560rcu_preempt0-21swapper/009:31:510
81560rcu_preempt0-21swapper/008:08:170
81560rcu_preempt0-21swapper/007:58:230
81560rcu_preempt0-21swapper/007:13:100
18248995647cyclictest945-21usb-storage08:38:571
81550rcu_preempt945-21usb-storage09:33:201
81550rcu_preempt5654-21ssh10:49:530
81550rcu_preempt2175-21ssh09:43:320
81540rcu_preempt19990-21if_err_can107:18:130
81540rcu_preempt16027-21ssh10:08:430
81540rcu_preempt0-21swapper/009:38:090
81530rcu_preempt12626-21egrep08:58:100
18248995349cyclictest945-21usb-storage09:01:491
18248995349cyclictest945-21usb-storage07:29:031
18248995348cyclictest945-21usb-storage08:32:591
18248995348cyclictest945-21usb-storage08:26:211
18248995348cyclictest945-21usb-storage08:15:421
18248995348cyclictest945-21usb-storage07:39:071
18248995347cyclictest945-21usb-storage07:35:151
18248995344cyclictest945-21usb-storage07:20:201
89950520irq/17-ehci_hcd945-21usb-storage09:13:461
81520rcu_preempt19-21ksoftirqd/111:47:121
81520rcu_preempt0-21swapper/008:56:220
81520rcu_preempt0-21swapper/008:39:360
81520rcu_preempt0-21swapper/008:33:160
18248995249cyclictest945-21usb-storage12:42:001
18248995249cyclictest945-21usb-storage08:44:251
18248995249cyclictest945-21usb-storage08:00:331
18248995248cyclictest945-21usb-storage08:28:411
18248995248cyclictest945-21usb-storage07:13:311
18248995247cyclictest945-21usb-storage07:53:371
18248995246cyclictest945-21usb-storage08:18:341
81510rcu_preempt8435-21ssh10:54:480
81510rcu_preempt19-21ksoftirqd/110:43:191
81510rcu_preempt17591-21ssh11:13:051
81510rcu_preempt0-21swapper/007:31:530
18248995148cyclictest945-21usb-storage09:08:001
146650510irq/31-eth0-tx-0-21swapper/110:11:231
146650510irq/31-eth0-tx-0-21swapper/109:40:571
89950500irq/17-ehci_hcd9528-21apt-get10:58:071
146650500irq/31-eth0-tx-0-21swapper/112:20:101
146650500irq/31-eth0-tx-0-21swapper/110:28:021
81490rcu_preempt1669-21irqstats08:13:160
18248994946cyclictest945-21usb-storage11:28:301
146650490irq/31-eth0-tx-0-21swapper/112:13:161
81480rcu_preempt0-21swapper/007:23:290
146650480irq/31-eth0-tx-181ktimersoftd/110:57:331
81470rcu_preempt9066-21fw_forwarded_lo08:43:130
18248994433cyclictest181ktimersoftd/109:24:591
146650430irq/31-eth0-tx-319-1kworker/1:1H11:10:341
81410rcu_preempt15355-21diskstats09:08:120
146650400irq/31-eth0-tx-8905-1kworker/1:0H12:01:121
146650400irq/31-eth0-tx-0-21swapper/112:25:061
89550320irq/17-ehci_hcd13847-21apt-get09:03:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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