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2026-06-28 - 04:55
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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 the 792 highest latencies:
System rack4slot2.osadl.org (updated Sun Jun 28, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502370,0irq/45-4a1000008715-21kworker/0:219:04:520
273532936,0sleep027369-21/usr/sbin/munin19:55:070
7450910,0irq/46-4a10000031871-21cron21:44:320
7350870,0irq/45-4a1000004569-21sendmail-msp21:59:560
7350870,0irq/45-4a10000016654-21munin-node20:59:420
7350870,0irq/45-4a10000010357-21irqstats20:40:160
7450860,0irq/46-4a100000438-21snmpd22:52:400
7450850,0irq/46-4a100000519-1kworker/u3:221:52:320
7450850,0irq/46-4a10000026778-21munin-run19:54:340
7350850,0irq/45-4a10000021674-21sendmail-msp19:40:200
254782850,0sleep023252-1kworker/u3:100:34:560
246642850,0sleep024657-1kworker/u3:219:46:190
7450840,0irq/46-4a1000009646-21chrt23:49:300
7450840,0irq/46-4a10000030583-21runrttasks23:14:520
7450840,0irq/46-4a10000020501-21seq21:10:020
7450840,0irq/46-4a10000015303-21chrt00:04:590
7450840,0irq/46-4a10000010159-21fschecks_count23:49:590
7350840,0irq/45-4a1000003444-21sshd20:20:080
7350840,0irq/45-4a10000013340-21grep20:49:440
7450830,0irq/46-4a1000007685-1kworker/u3:221:08:530
7450830,0irq/46-4a1000004550-21munin-run21:59:340
7450830,0irq/46-4a10000032224-21df23:19:500
7450830,0irq/46-4a10000028401-1kworker/u3:221:38:410
7450830,0irq/46-4a10000027815-21ls23:05:270
7450830,0irq/46-4a10000023378-21sendmail-msp21:20:120
7450830,0irq/46-4a10000016839-1kworker/u3:122:35:020
7450830,0irq/46-4a10000016249-21seq20:57:310
7450830,0irq/46-4a10000014844-21sendmail-msp19:19:350
7450830,0irq/46-4a10000013442-21df22:24:510
7350830,0irq/45-4a10000028875-21df_abs19:59:520
237332830,0chrt23252-1kworker/u3:100:29:530
125272830,0sleep011073-1kworker/u3:223:55:340
7450820,0irq/46-4a100000384-21sendmail_mailst21:45:250
7450820,0irq/46-4a1000002963-21/usr/sbin/munin23:29:430
7450820,0irq/46-4a10000026579-1kworker/u3:021:29:560
7450820,0irq/46-4a10000026095-21runrttasks21:25:320
7450820,0irq/46-4a10000022888-21runrttasks21:15:570
7450820,0irq/46-4a10000022699-21switchtime00:25:290
7450820,0irq/46-4a10000020002-21cut22:44:360
7450820,0irq/46-4a10000019941-21sh19:34:340
7450820,0irq/46-4a10000018646-21diskstats00:14:580
7450820,0irq/46-4a10000017264-21meminfo19:25:130
7450820,0irq/46-4a10000014844-21sendmail-msp19:20:270
7450820,0irq/46-4a10000011244-21diskstats19:09:570
14382825,0sleep01461-21cstates23:24:480
7450810,0irq/46-4a1000006410-21aten_r4power_cu22:04:440
7450810,0irq/46-4a1000006277-21sendmail-msp23:39:510
7450810,0irq/46-4a1000005121-21fw_forwarded_lo23:35:040
7450810,0irq/46-4a10000032623-21/usr/sbin/munin20:10:160
7450810,0irq/46-4a1000002879-21sendmail-msp20:19:340
7450810,0irq/46-4a10000020141-21aten_r4power_po22:44:450
7450810,0irq/46-4a10000020049-21cat19:34:380
7450810,0irq/46-4a10000016846-21chrt00:09:520
7450810,0irq/46-4a10000014566-1kworker/u3:022:31:380
7450810,0irq/46-4a10000013117-21sendmail-msp00:00:020
7450810,0irq/46-4a10000012279-21proc_pri22:20:330
7450810,0irq/46-4a10000011920-21fschecks_time20:44:590
7450810,0irq/46-4a10000010457-21ntp_kernel_pll_22:15:180
7350810,0irq/45-4a1000004984-21df_abs20:24:520
7350810,0irq/45-4a10000025751-21chrt23:00:200
7450800,0irq/46-4a1000008404-21diskstats20:34:540
7450800,0irq/46-4a1000008258-21cstates22:09:470
7450800,0irq/46-4a1000006586-21cstates20:29:490
7450800,0irq/46-4a10000024957-1kworker/u3:223:12:160
7450800,0irq/46-4a10000023828-21fschecks_count22:55:000
7450800,0irq/46-4a10000019951-21sendmail-msp00:20:410
7450790,0irq/46-4a10000030916-21load20:05:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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