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2026-08-21 - 02:10
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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 Fri Aug 21, 2026 00:44:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74508210,0irq/46-4a10000012-21ksoftirqd/019:05:110
7350960,0irq/45-4a10000020373-21memory19:40:240
7350950,0irq/45-4a10000013729-21sensors_temp00:05:270
130752950,0sleep012717-1kworker/u3:120:54:420
7350940,0irq/45-4a10000026882-21diskstats19:59:560
7450930,0irq/46-4a10000014486-21sendmail-msp20:59:400
7450920,0irq/46-4a1000008445-1kworker/u3:019:11:070
7450920,0irq/46-4a10000024170-21grep21:25:300
7450920,0irq/46-4a10000023020-21latency_hist19:49:270
7450920,0irq/46-4a10000016114-21munin-plugin-st00:14:270
7350920,0irq/45-4a1000001256-21fschecks_count21:54:520
7450910,0irq/46-4a1000008203-21/usr/sbin/munin22:15:010
7450910,0irq/46-4a1000007103-21/usr/sbin/munin20:35:270
7450910,0irq/46-4a1000004836-21irqstats22:05:040
7450910,0irq/46-4a1000003310-21ntp_kernel_pll_20:25:130
7450910,0irq/46-4a10000028868-21runrttasks20:05:070
7450910,0irq/46-4a10000018073-21wget19:34:360
7450910,0irq/46-4a10000012151-21timerwakeupswit00:00:420
7450900,0irq/46-4a1000009935-21ls22:20:120
7450900,0irq/46-4a1000004935-21meminfo20:30:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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