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2026-07-02 - 13:02
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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 Thu Jul 02, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502480,0irq/46-4a10000014389-1kworker/u3:119:07:340
180619913752,0cyclictest5601-21sed23:15:010
180619911639,0cyclictest0-21swapper21:20:270
180619911636,0cyclictest0-21swapper21:40:040
7350830,0irq/45-4a10000022732-21irqstats19:20:080
7350780,0irq/45-4a100000733-21cut21:25:140
7350780,0irq/45-4a10000028905-21sendmail-msp19:40:240
7350780,0irq/45-4a10000021071-21memory00:00:150
7350780,0irq/45-4a10000017539-21irqstats23:50:000
7350780,0irq/45-4a10000016980-21latency_hist20:39:300
7450770,0irq/46-4a1000005914-1kworker/u3:020:14:390
7450770,0irq/46-4a10000016596-1kworker/u3:221:00:300
7350770,0irq/45-4a1000004944-21sendmail21:39:230
7350770,0irq/45-4a1000004072-21ntpdc20:00:230
7350770,0irq/45-4a10000014298-21ntp_kernel_pll_23:40:180
7350770,0irq/45-4a10000010457-21df_abs21:54:420
7350760,0irq/45-4a100000470-21runrttasks22:39:380
82492750,0chrt24331-1kworker/u3:223:23:360
7450750,0irq/46-4a1000004022-21runrttasks23:10:080
7450750,0irq/46-4a10000030770-1kworker/u3:021:44:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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