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2026-01-11 - 13:38
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack4slot2.osadl.org (updated Sun Jan 11, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501960,0irq/46-4a10000029856-21runrttasks19:06:550
283252980,0sleep026595-1kworker/u3:123:48:400
7450950,0irq/46-4a1000004810-21dpkg19:30:110
7350940,0irq/45-4a10000022427-21proc_pri23:30:050
7450930,0irq/46-4a10000014049-21/usr/sbin/munin21:31:100
7450910,0irq/46-4a10000012347-21awk23:00:100
7450910,0irq/46-4a10000011849-21sshd00:34:390
7450900,0irq/46-4a1000008685-21threads19:40:100
7450900,0irq/46-4a1000008400-21latency21:14:510
7450900,0irq/46-4a1000006538-21/usr/sbin/munin19:34:500
7450900,0irq/46-4a10000028533-1kworker/u3:223:51:360
7450900,0irq/46-4a10000024579-1kworker/u3:019:12:390
7450900,0irq/46-4a10000020057-21df21:49:310
7450900,0irq/46-4a10000018772-21ps20:10:070
7450900,0irq/46-4a10000015155-21df_inode23:09:520
7450900,0irq/46-4a10000010617-21rt-features00:30:060
7350900,0irq/45-4a10000015591-21sensors_temp21:35:100
7450890,0irq/46-4a1000007254-21timerwakeupswit22:45:120
7450890,0irq/46-4a1000007062-21ls21:10:090
7450890,0irq/46-4a1000005010-21fw_forwarded_lo22:39:470
7450890,0irq/46-4a1000004415-21/usr/sbin/munin21:04:520
7450890,0irq/46-4a1000003737-21/usr/sbin/munin21:00:140
7450890,0irq/46-4a10000031734-1kworker/u3:219:14:380
7450890,0irq/46-4a1000003155-21/usr/sbin/munin22:34:450
7450890,0irq/46-4a10000030431-21cstates23:54:270
7450890,0irq/46-4a10000027007-21df_inode22:09:350
7450890,0irq/46-4a10000025586-21ntp_states20:30:020
7450890,0irq/46-4a10000023611-21grep20:24:430
7350890,0irq/45-4a10000014629-21cut19:59:250
7350890,0irq/45-4a1000001292-21tune2fs19:19:390
7450880,0irq/46-4a1000005538-21/usr/sbin/munin00:15:080
7450880,0irq/46-4a100000381-21awk00:00:070
7450880,0irq/46-4a1000003462-21sendmail_mailtr19:25:070
7450880,0irq/46-4a10000030611-21fw_forwarded_lo22:19:460
7450880,0irq/46-4a10000029193-21ntpdc22:15:500
7450880,0irq/46-4a10000025308-21diskstats22:04:350
7450880,0irq/46-4a10000023995-21/usr/sbin/munin22:00:030
7450880,0irq/46-4a10000023708-21/usr/sbin/munin23:34:370
7450880,0irq/46-4a10000022408-21awk20:20:120
7450880,0irq/46-4a10000020324-21sshd23:24:390
7450880,0irq/46-4a10000020026-21df_inode20:14:350
7450880,0irq/46-4a10000018169-21wget21:44:240
7450880,0irq/46-4a1000001500-21runrttasks20:54:480
7450880,0irq/46-4a10000011235-21grep21:24:130
182222880,0sleep015962-1kworker/u3:323:19:130
7450870,0irq/46-4a1000005837-1kworker/u3:200:20:290
7450870,0irq/46-4a10000031858-21grep20:49:270
7450870,0irq/46-4a10000030137-21aten_r4power_vo20:44:290
7450870,0irq/46-4a10000026978-21/usr/sbin/munin20:34:400
7450870,0irq/46-4a10000025296-21cstates23:39:290
7450870,0irq/46-4a1000002407-21chrt22:32:030
7450870,0irq/46-4a10000022163-21/usr/sbin/munin21:54:560
7450870,0irq/46-4a10000017384-21/usr/sbin/munin20:05:230
7450870,0irq/46-4a10000015962-1kworker/u3:323:16:050
7450870,0irq/46-4a10000014465-21sendmail-msp19:59:100
7450870,0irq/46-4a10000014308-21chrt23:06:090
7450870,0irq/46-4a10000011980-21grep19:50:060
7450870,0irq/46-4a10000010361-21swap19:45:090
7450870,0irq/46-4a10000010289-21/usr/sbin/munin22:54:580
7450860,0irq/46-4a1000008977-21tr00:25:080
7450860,0irq/46-4a1000008017-21wget22:49:240
7450860,0irq/46-4a10000032280-21tune2fs22:24:410
7450860,0irq/46-4a1000003130-21wc00:09:270
7450860,0irq/46-4a10000028556-21sed20:39:320
7450860,0irq/46-4a10000017039-21memory21:39:560
7450860,0irq/46-4a1000001689-21fw_conntrack00:04:430
7450860,0irq/46-4a10000010996-21chrt21:23:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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