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2026-08-01 - 12:55
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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 Sat Aug 01, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81890rcu_preempt0-21swapper/123:03:121
81740rcu_preempt18159-21df_abs21:33:051
81720rcu_preempt20612-21sh22:37:331
81720rcu_preempt0-21swapper/121:23:061
81720rcu_preempt0-21swapper/121:23:061
81720rcu_preempt0-21swapper/119:18:141
89950710irq/17-ehci_hcd0-21swapper/019:43:000
81710rcu_preempt0-21swapper/123:38:401
81710rcu_preempt0-21swapper/123:23:221
81710rcu_preempt0-21swapper/122:03:171
81700rcu_preempt2192-21snmpd19:38:071
81700rcu_preempt0-21swapper/122:20:221
81700rcu_preempt0-21swapper/119:43:071
81690rcu_preempt6933-21sh00:11:371
81690rcu_preempt14966-21diskmemload22:26:321
81680rcu_preempt0-21swapper/123:08:141
81680rcu_preempt0-21swapper/100:16:061
81670rcu_preempt7171-21df21:08:051
81670rcu_preempt0-21swapper/123:58:331
81670rcu_preempt0-21swapper/123:18:551
81670rcu_preempt0-21swapper/121:18:071
81660rcu_preempt17762-21munin-run21:32:511
81660rcu_preempt17762-21munin-run21:32:511
81660rcu_preempt13424-21sh00:27:261
81660rcu_preempt0-21swapper/123:15:011
81660rcu_preempt0-21swapper/120:14:221
81660rcu_preempt0-21swapper/119:14:091
81650rcu_preempt26343-21wc23:47:511
81650rcu_preempt22045-21grep00:43:041
81650rcu_preempt0-21swapper/121:41:301
81640rcu_preempt4237-21ssh00:06:191
81640rcu_preempt25628-21ssh22:46:221
81640rcu_preempt25628-21ssh22:46:221
81640rcu_preempt0-21swapper/122:16:241
81640rcu_preempt0-21swapper/122:09:041
81640rcu_preempt0-21swapper/100:35:521
81640rcu_preempt0-21swapper/022:38:380
81630rcu_preempt22789-21ls20:02:501
81630rcu_preempt10782-21munin-run00:22:511
81630rcu_preempt10765-21irqstats19:13:120
81630rcu_preempt0-21swapper/123:57:471
81630rcu_preempt0-21swapper/122:55:581
81630rcu_preempt0-21swapper/120:58:171
81630rcu_preempt0-21swapper/100:31:331
81620rcu_preempt26392-21df22:48:041
81620rcu_preempt17463-21ssh22:31:041
81620rcu_preempt0-21swapper/123:37:401
81620rcu_preempt0-21swapper/122:01:101
81620rcu_preempt0-21swapper/121:54:401
81620rcu_preempt0-21swapper/121:50:211
81620rcu_preempt0-21swapper/121:43:361
81620rcu_preempt0-21swapper/121:13:061
81620rcu_preempt0-21swapper/023:08:080
81610rcu_preempt6875-21/usr/sbin/munin21:07:511
81610rcu_preempt23563-21needreboot20:03:101
81610rcu_preempt20419-21/usr/sbin/munin19:53:041
81610rcu_preempt19142-21ssh00:37:561
81610rcu_preempt0-21swapper/123:00:121
81610rcu_preempt0-21swapper/120:33:151
81610rcu_preempt0-21swapper/023:59:020
81610rcu_preempt0-21swapper/000:46:590
89550600irq/17-ehci_hcd0-21swapper/000:29:500
81600rcu_preempt22423-21ssh21:40:350
81600rcu_preempt13716-21basename19:23:151
81600rcu_preempt0-21swapper/123:51:251
81600rcu_preempt0-21swapper/123:31:131
81600rcu_preempt0-21swapper/120:28:161
81600rcu_preempt0-21swapper/023:30:150
81590rcu_preempt24804-21ssh22:43:200
81590rcu_preempt24804-21ssh22:43:200
81590rcu_preempt14662-21cat19:28:111
81590rcu_preempt0-21swapper/122:40:101
81590rcu_preempt0-21swapper/120:48:001
81580rcu_preempt32063-21df_inode20:38:051
81580rcu_preempt31440-21ssh23:56:470
81580rcu_preempt11555-21ssh21:20:360
81580rcu_preempt0-21swapper/120:20:411
81580rcu_preempt0-21swapper/021:23:170
81580rcu_preempt0-21swapper/021:23:170
81580rcu_preempt0-21swapper/000:38:270
81570rcu_preempt19336-21ssh21:34:150
81570rcu_preempt16615-21/usr/sbin/munin19:38:120
81570rcu_preempt1395-21ssh22:01:400
89550560irq/17-ehci_hcd3-21ksoftirqd/023:37:510
81560rcu_preempt28160-21ssh21:51:070
81560rcu_preempt27681-21ssh23:48:280
81560rcu_preempt14569-21ssh22:25:110
81560rcu_preempt0-21swapper/120:53:061
81560rcu_preempt0-21swapper/119:33:111
81560rcu_preempt0-21swapper/023:45:200
81560rcu_preempt0-21swapper/023:20:580
81560rcu_preempt0-21swapper/022:57:150
81560rcu_preempt0-21swapper/022:30:260
81560rcu_preempt0-21swapper/020:13:490
81560rcu_preempt0-21swapper/000:07:300
11438995646cyclictest945-21usb-storage22:49:130
81550rcu_preempt19794-21ssh23:34:010
81550rcu_preempt0-21swapper/022:35:080
81550rcu_preempt0-21swapper/019:35:530
11438995544cyclictest945-21usb-storage21:32:340
11438995544cyclictest945-21usb-storage21:32:340
81540rcu_preempt25122-21python20:08:161
81540rcu_preempt13090-21ssh00:26:240
81540rcu_preempt11736-21ssh22:20:020
81540rcu_preempt1113-21ssh23:00:210
81540rcu_preempt0-21swapper/023:06:370
81540rcu_preempt0-21swapper/022:16:110
81540rcu_preempt0-21swapper/022:07:060
81540rcu_preempt0-21swapper/021:47:100
81540rcu_preempt0-21swapper/020:23:160
81540rcu_preempt0-21swapper/019:18:160
81540rcu_preempt0-21swapper/000:36:210
81540rcu_preempt0-21swapper/000:13:500
81540rcu_preempt0-21swapper/000:08:210
81530rcu_preempt28238-21fw_forwarded_lo20:23:071
81530rcu_preempt0-21swapper/023:14:340
81530rcu_preempt0-21swapper/021:53:180
81530rcu_preempt0-21swapper/021:16:160
81530rcu_preempt0-21swapper/020:38:010
81530rcu_preempt0-21swapper/020:20:270
81530rcu_preempt0-21swapper/019:48:470
81530rcu_preempt0-21swapper/019:24:070
81530rcu_preempt0-21swapper/000:20:570
11438995348cyclictest945-21usb-storage22:10:440
81520rcu_preempt0-21swapper/023:25:390
81520rcu_preempt0-21swapper/021:06:190
11438995249cyclictest945-21usb-storage20:03:040
11438995248cyclictest945-21usb-storage20:55:220
11438995248cyclictest945-21usb-storage20:48:100
11438995248cyclictest945-21usb-storage19:28:130
81510rcu_preempt20357-21latency_hist19:52:511
81510rcu_preempt0-21swapper/020:58:510
11438995148cyclictest945-21usb-storage21:08:160
81500rcu_preempt19-21ksoftirqd/120:43:171
11438995047cyclictest945-21usb-storage20:12:090
11438995046cyclictest945-21usb-storage20:01:590
11438994946cyclictest945-21usb-storage20:47:250
11438994845cyclictest945-21usb-storage20:33:130
11438994844cyclictest945-21usb-storage20:28:120
11438994844cyclictest945-21usb-storage19:57:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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