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2026-08-06 - 09:46
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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 Thu Aug 06, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt0-21swapper/119:18:101
81820rcu_preempt0-21swapper/119:18:101
89950760irq/17-ehci_hcd945-21usb-storage19:17:170
89950760irq/17-ehci_hcd945-21usb-storage19:17:170
81750rcu_preempt25750-21ssh23:53:281
81750rcu_preempt20307-21ssh22:43:330
81740rcu_preempt0-21swapper/021:53:410
81730rcu_preempt6446-21ssh22:18:291
81730rcu_preempt5462-21sh22:15:450
81720rcu_preempt32252-21ssh00:03:500
81720rcu_preempt0-21swapper/023:48:030
81720rcu_preempt0-21swapper/023:05:140
81710rcu_preempt5227-21diskmemload00:10:440
81710rcu_preempt11941-21ssh00:28:320
81710rcu_preempt0-21swapper/119:28:341
81710rcu_preempt0-21swapper/023:54:180
81710rcu_preempt0-21swapper/019:38:390
81700rcu_preempt5227-21diskmemload21:40:120
81700rcu_preempt32646-21sh22:06:240
81700rcu_preempt27317-21ssh22:56:120
81700rcu_preempt0-21swapper/122:08:361
81700rcu_preempt0-21swapper/023:13:500
81700rcu_preempt0-21swapper/022:01:500
81690rcu_preempt8018-21sh00:20:311
81690rcu_preempt0-21swapper/121:48:351
81690rcu_preempt0-21swapper/100:01:231
81690rcu_preempt0-21swapper/022:38:370
81690rcu_preempt0-21swapper/022:20:120
81680rcu_preempt5227-21diskmemload21:22:310
81680rcu_preempt18907-21sh00:41:011
81680rcu_preempt0-21swapper/022:24:070
81670rcu_preempt1244-21ssh22:08:310
81670rcu_preempt0-21swapper/122:41:171
81670rcu_preempt0-21swapper/121:47:151
81670rcu_preempt0-21swapper/023:43:070
81660rcu_preempt28767-21munin-run20:43:161
81660rcu_preempt25483-21sh23:53:040
81660rcu_preempt0-21swapper/020:48:340
81650rcu_preempt19952-21ssh21:43:340
81650rcu_preempt14635-21df_abs00:33:291
81650rcu_preempt0-21swapper/123:32:541
81650rcu_preempt0-21swapper/123:21:421
81650rcu_preempt0-21swapper/122:23:231
81650rcu_preempt0-21swapper/121:55:001
81650rcu_preempt0-21swapper/121:37:481
81650rcu_preempt0-21swapper/023:20:150
81640rcu_preempt0-21swapper/119:43:341
81640rcu_preempt0-21swapper/021:24:390
81640rcu_preempt0-21swapper/000:43:180
81630rcu_preempt9951-21ssh23:23:361
81630rcu_preempt25166-21sshd23:52:011
81630rcu_preempt25099-21ssh22:53:030
81630rcu_preempt16025-21ssh23:34:010
81630rcu_preempt0-21swapper/121:18:541
81630rcu_preempt0-21swapper/121:16:011
81630rcu_preempt0-21swapper/120:12:311
146650630irq/31-eth0-tx-5567-21ssh00:14:140
81620rcu_preempt5227-21diskmemload22:36:250
81620rcu_preempt3-21ksoftirqd/021:50:550
81620rcu_preempt16098-21munin-run19:53:160
81620rcu_preempt0-21swapper/122:43:401
81620rcu_preempt0-21swapper/121:58:351
81620rcu_preempt0-21swapper/120:02:021
81620rcu_preempt0-21swapper/023:30:040
81620rcu_preempt0-21swapper/000:38:450
81610rcu_preempt19369-21latency_hist21:43:161
81610rcu_preempt0-21swapper/123:16:241
81610rcu_preempt0-21swapper/100:17:071
81600rcu_preempt5227-21diskmemload23:11:370
81600rcu_preempt5227-21diskmemload21:34:070
81600rcu_preempt4569-21gzip22:13:401
81600rcu_preempt31475-21if_err_eth100:03:341
81600rcu_preempt24210-21ssh22:50:151
81600rcu_preempt13246-21ssh21:31:330
81600rcu_preempt12958-21ssh21:30:341
81600rcu_preempt0-21swapper/123:44:011
81600rcu_preempt0-21swapper/122:37:561
81600rcu_preempt0-21swapper/100:47:151
81600rcu_preempt0-21swapper/100:28:411
81600rcu_preempt0-21swapper/100:23:561
81590rcu_preempt5227-21diskmemload22:29:570
81590rcu_preempt3977-21/usr/sbin/munin21:13:160
81590rcu_preempt30088-21ssh23:01:110
81590rcu_preempt2390-21ssh23:09:041
81590rcu_preempt10261-21ssh21:26:081
81590rcu_preempt0-21swapper/122:29:101
81590rcu_preempt0-21swapper/122:04:431
81590rcu_preempt0-21swapper/120:33:391
81590rcu_preempt0-21swapper/119:33:411
81590rcu_preempt0-21swapper/119:23:371
81590rcu_preempt0-21swapper/100:11:071
81580rcu_preempt8472-21ssh00:22:230
81580rcu_preempt16770-21ssh00:37:480
81580rcu_preempt0-21swapper/123:37:531
81580rcu_preempt0-21swapper/121:11:421
81570rcu_preempt795-21ssh23:08:061
81570rcu_preempt30568-21ssh00:02:090
81570rcu_preempt10824-21ssh00:26:030
81570rcu_preempt0-21swapper/122:53:581
81570rcu_preempt0-21swapper/120:28:481
81560rcu_preempt0-21swapper/123:39:501
81560rcu_preempt0-21swapper/123:01:061
81560rcu_preempt0-21swapper/120:48:421
81560rcu_preempt0-21swapper/120:03:371
81560rcu_preempt0-21swapper/023:27:040
81560rcu_preempt0-21swapper/021:14:250
81560rcu_preempt0-21swapper/020:18:410
89550550irq/17-ehci_hcd111rcuc/020:28:320
81550rcu_preempt0-21swapper/120:55:351
81550rcu_preempt0-21swapper/120:45:531
81550rcu_preempt0-21swapper/120:20:451
81550rcu_preempt0-21swapper/120:17:531
81550rcu_preempt0-21swapper/119:38:331
81550rcu_preempt0-21swapper/019:33:290
81540rcu_preempt9861-21sort19:28:160
81540rcu_preempt24277-21irqstats20:23:350
81540rcu_preempt0-21swapper/121:05:341
81540rcu_preempt0-21swapper/120:23:261
81540rcu_preempt0-21swapper/119:49:291
81540rcu_preempt0-21swapper/019:58:430
81530rcu_preempt27883-21df_inode20:38:300
89950520irq/17-ehci_hcd945-21usb-storage20:05:270
81520rcu_preempt21527-21diskstats20:13:340
81520rcu_preempt0-21swapper/120:58:581
81520rcu_preempt0-21swapper/119:56:211
81520rcu_preempt0-21swapper/021:01:330
81500rcu_preempt11011-21users19:28:410
81490rcu_preempt20290-21fw_conntrack20:08:320
81490rcu_preempt16375-21df19:53:290
81490rcu_preempt0-21swapper/020:55:200
7260994845cyclictest945-21usb-storage19:18:311
81470rcu_preempt7959-21memory19:18:360
81470rcu_preempt27109-21ntp_states20:33:390
81450rcu_preempt13839-21df19:43:280
7259994542cyclictest945-21usb-storage20:43:390
7259994440cyclictest945-21usb-storage21:03:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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