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2026-04-11 - 07:44
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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 Apr 11, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502170,0irq/45-4a10000026343-21kworker/0:019:00:550
71442947,0sleep07192-21unixbench_singl23:51:380
7350920,0irq/45-4a10000015056-21diskstats00:16:020
160152890,0sleep032688-1kworker/u3:119:33:240
7450870,0irq/46-4a1000006290-21aten_r4power_vo20:40:530
7450870,0irq/46-4a100000460-21snmpd20:49:150
7450870,0irq/46-4a10000012272-21timerandwakeup20:56:370
289002877,0sleep028914-21irqstats20:11:160
132472877,0sleep013266-21df_abs21:00:590
7450860,0irq/46-4a1000009959-21grep00:01:080
7450860,0irq/46-4a1000009912-21diskstats20:51:020
7450860,0irq/46-4a1000008462-21/usr/sbin/munin22:21:210
7450860,0irq/46-4a10000021750-21cat19:50:550
7450860,0irq/46-4a10000021583-21cut23:00:500
7450860,0irq/46-4a10000018119-21latency_hist19:40:450
7450860,0irq/46-4a10000017335-21sensors_temp19:36:360
7450860,0irq/46-4a1000001635-21latency20:26:200
7450850,0irq/46-4a1000009625-21aten_r4power_cu22:25:510
7450850,0irq/46-4a1000007789-21hostname19:11:060
7450850,0irq/46-4a1000005378-21sensors20:36:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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