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2026-09-14 - 18:22
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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 Mon Sep 14, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502460,0irq/46-4a10000026889-1kworker/u3:107:09:210
7350960,0irq/45-4a1000005941-21/usr/sbin/munin12:25:000
7350950,0irq/45-4a10000021171-21sendmail-msp09:59:590
7450940,0irq/46-4a1000006704-21zcat07:40:440
7450940,0irq/46-4a10000025526-21grep11:45:410
7450940,0irq/46-4a10000018632-21proc_pri11:25:400
7450940,0irq/46-4a10000018373-21irqstats09:50:250
7450940,0irq/46-4a10000018136-21seq08:15:120
7450940,0irq/46-4a10000013454-21open_inodes08:00:410
98929312,0sleep0996-21df10:35:090
7450930,0irq/46-4a1000009982-21seq07:50:380
7450930,0irq/46-4a1000004542-21seq10:45:160
7450930,0irq/46-4a10000030104-21df_abs12:00:100
7450930,0irq/46-4a10000028733-21meminfo10:20:320
7450930,0irq/46-4a10000027951-21fw_forwarded_lo07:10:240
7450930,0irq/46-4a10000026835-21perl10:15:180
7450930,0irq/46-4a10000026293-21latency_hist08:39:540
7450930,0irq/46-4a10000022306-21unixbench_singl11:35:500
7450930,0irq/46-4a10000017062-21sensors_temp11:20:460
7450920,0irq/46-4a1000009394-21aten_r4power_po09:25:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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