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2025-12-06 - 16:32
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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 20 highest latencies:
System rack4slot2.osadl.org (updated Sat Dec 06, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501990,0irq/46-4a1000009872-21/usr/sbin/munin07:03:120
7450970,0irq/46-4a10000025741-21tr10:57:440
180232960,0sleep016606-1kworker/u3:107:23:460
7450950,0irq/46-4a10000024971-21pure-ftpd07:43:510
7350950,0irq/45-4a10000031578-1kworker/u3:308:09:560
7450940,0irq/46-4a1000007459-21sed08:28:290
7450940,0irq/46-4a1000005930-21irqstats11:33:310
7450940,0irq/46-4a10000026674-21/usr/sbin/munin07:48:500
7450940,0irq/46-4a10000021127-21irqstats09:08:270
7450940,0irq/46-4a10000014246-21runrttasks10:23:370
7450940,0irq/46-4a10000010764-21fw_forwarded_lo08:38:200
7450930,0irq/46-4a100000443-21snmpd08:19:540
7450930,0irq/46-4a100000443-21snmpd07:39:240
7450930,0irq/46-4a10000029344-21chrt07:58:100
7450930,0irq/46-4a10000028362-21/usr/sbin/munin11:04:290
7450930,0irq/46-4a10000024872-21meminfo12:28:300
7450930,0irq/46-4a10000016229-21runrttasks12:03:270
7450930,0irq/46-4a10000014913-21switchtime11:58:460
7450930,0irq/46-4a1000001023-21mailstats09:43:430
7450920,0irq/46-4a1000009426-21ntp_states10:08:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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