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2026-06-24 - 08:35
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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 24, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81830rcu_preempt14082-21if_eth000:00:000
81770rcu_preempt30251-21apt-get23:29:511
81760rcu_preempt6472-21kernelversion20:09:591
81760rcu_preempt1886-21cat00:39:411
81750rcu_preempt14802-21cpuspeed_turbos21:59:571
81740rcu_preempt28661-21timerwakeupswit23:25:071
81740rcu_preempt27147-21ntp_states00:25:051
81730rcu_preempt31905-21df_abs00:34:561
81730rcu_preempt30783-21ssh22:29:541
81730rcu_preempt22301-21diskmemload22:35:100
81730rcu_preempt19347-21ntp_kernel_pll_21:00:041
81730rcu_preempt0-21swapper/123:01:571
81730rcu_preempt0-21swapper/120:25:151
81720rcu_preempt5791-21ssh22:43:220
81720rcu_preempt0-21swapper/122:13:571
81710rcu_preempt22301-21diskmemload21:59:271
81710rcu_preempt0-21swapper/020:45:010
81710rcu_preempt0-21swapper/000:29:590
81700rcu_preempt684-21diskstats23:34:541
81700rcu_preempt0-21swapper/122:35:051
81700rcu_preempt0-21swapper/122:17:311
81700rcu_preempt0-21swapper/021:40:270
81700rcu_preempt0-21swapper/019:30:060
81690rcu_preempt5598-21munin-run23:44:401
81690rcu_preempt5598-21munin-run23:44:401
81690rcu_preempt2968-21sh21:37:191
81690rcu_preempt27742-21sh21:23:580
81690rcu_preempt17919-21sh00:06:340
81690rcu_preempt0-21swapper/123:24:401
81690rcu_preempt0-21swapper/119:39:591
81690rcu_preempt0-21swapper/100:18:311
81690rcu_preempt0-21swapper/100:01:551
81690rcu_preempt0-21swapper/021:26:100
89950680irq/17-ehci_hcd945-21usb-storage19:11:541
81680rcu_preempt22301-21diskmemload22:16:010
81680rcu_preempt16197-21diskmemload23:02:580
81680rcu_preempt0-21swapper/121:42:471
81680rcu_preempt0-21swapper/023:50:480
81680rcu_preempt0-21swapper/023:43:280
81680rcu_preempt0-21swapper/023:43:280
81680rcu_preempt0-21swapper/023:29:520
81680rcu_preempt0-21swapper/023:11:280
89950670irq/17-ehci_hcd945-21usb-storage22:44:521
81670rcu_preempt25815-21ssh00:23:220
81670rcu_preempt13323-21sh21:55:430
81670rcu_preempt0-21swapper/121:28:001
81670rcu_preempt0-21swapper/121:20:241
81670rcu_preempt0-21swapper/020:30:010
81670rcu_preempt0-21swapper/000:16:240
81660rcu_preempt18822-21df_abs20:59:560
81650rcu_preempt25194-21open_inodes19:15:031
81650rcu_preempt23759-21memory19:09:590
81650rcu_preempt11827-21munin-run21:54:400
81650rcu_preempt0-21swapper/122:55:291
81650rcu_preempt0-21swapper/023:29:390
81640rcu_preempt3732-21pluginstate21:39:410
81640rcu_preempt0-21swapper/119:25:031
81640rcu_preempt0-21swapper/023:45:060
81640rcu_preempt0-21swapper/022:00:520
89950630irq/17-ehci_hcd945-21usb-storage23:55:320
81630rcu_preempt6511-21apt-get21:44:520
81630rcu_preempt32310-21memory00:35:020
81630rcu_preempt25346-21ssh22:19:530
81630rcu_preempt19788-21ps00:10:101
81630rcu_preempt0-21swapper/119:45:061
81630rcu_preempt0-21swapper/119:45:061
81630rcu_preempt0-21swapper/022:04:550
81630rcu_preempt0-21swapper/020:20:030
81630rcu_preempt0-21swapper/019:27:220
81620rcu_preempt3-21ksoftirqd/023:06:480
81620rcu_preempt0-21swapper/123:15:091
81620rcu_preempt0-21swapper/121:50:481
81620rcu_preempt0-21swapper/120:34:451
81620rcu_preempt0-21swapper/120:14:591
81620rcu_preempt0-21swapper/100:07:291
81620rcu_preempt0-21swapper/020:25:170
81610rcu_preempt8764-21latency_hist22:49:410
81610rcu_preempt3-21ksoftirqd/022:54:140
81610rcu_preempt3-21ksoftirqd/022:29:570
81610rcu_preempt26595-21ssh22:20:311
81610rcu_preempt25203-21ssh00:21:171
81610rcu_preempt10521-21ssh23:53:541
81610rcu_preempt0-21swapper/123:46:351
81610rcu_preempt0-21swapper/121:33:591
81610rcu_preempt0-21swapper/121:14:571
81610rcu_preempt0-21swapper/119:19:511
81610rcu_preempt0-21swapper/021:29:490
81600rcu_preempt30909-21ssh00:32:431
81600rcu_preempt30416-21ssh22:29:071
81600rcu_preempt0-21swapper/123:55:051
81600rcu_preempt0-21swapper/123:04:531
81600rcu_preempt0-21swapper/122:43:331
81600rcu_preempt0-21swapper/119:30:031
81600rcu_preempt0-21swapper/023:22:510
81600rcu_preempt0-21swapper/020:05:100
81590rcu_preempt9450-21if_wlan022:49:591
81590rcu_preempt28382-21ssh00:28:130
81590rcu_preempt22301-21diskmemload22:58:270
81590rcu_preempt21205-21ssh23:11:501
81590rcu_preempt0-21swapper/023:38:270
81590rcu_preempt0-21swapper/000:10:470
89950580irq/17-ehci_hcd171rcuc/120:00:001
81580rcu_preempt8350-21ssh21:47:291
81580rcu_preempt30002-21ssh22:27:320
81580rcu_preempt23976-21ssh23:17:040
81580rcu_preempt21735-21ssh22:11:360
81580rcu_preempt0-21swapper/120:45:061
81580rcu_preempt0-21swapper/120:19:591
81570rcu_preempt3523-21ssh00:41:290
81570rcu_preempt22301-21diskmemload22:05:581
81570rcu_preempt1302-21if_eth119:49:581
81570rcu_preempt0-21swapper/019:49:530
81560rcu_preempt0-21swapper/121:13:461
81560rcu_preempt0-21swapper/120:33:461
81560rcu_preempt0-21swapper/021:09:540
81560rcu_preempt0-21swapper/021:04:550
81550rcu_preempt24804-21ssh21:18:370
81550rcu_preempt0-21swapper/120:56:071
81550rcu_preempt0-21swapper/120:04:501
81540rcu_preempt20182-21fw_conntrack21:04:561
81540rcu_preempt0-21swapper/020:11:200
81540rcu_preempt0-21swapper/019:41:180
81520rcu_preempt0-21swapper/120:39:551
81520rcu_preempt0-21swapper/020:37:240
81520rcu_preempt0-21swapper/019:54:480
24339995247cyclictest945-21usb-storage19:35:561
81510rcu_preempt25529-21vmstat19:15:060
81510rcu_preempt0-21swapper/020:54:210
81510rcu_preempt0-21swapper/020:41:210
81510rcu_preempt0-21swapper/020:19:380
81510rcu_preempt0-21swapper/019:36:400
81490rcu_preempt0-21swapper/019:44:570
81490rcu_preempt0-21swapper/019:44:570
24339994946cyclictest945-21usb-storage19:55:561
89550470irq/17-ehci_hcd0-21swapper/020:00:000
24339994643cyclictest945-21usb-storage20:50:391
146550440irq/30-eth0-tx-0-21swapper/020:55:070
2432199376cyclictest21150-21kworker/0:119:21:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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