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2026-07-02 - 03:28
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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 792 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
7450750,0irq/46-4a10000023636-21runrttasks20:58:410
7450750,0irq/46-4a10000023320-21chrt22:31:040
7450750,0irq/46-4a10000020039-1kworker/u3:120:50:010
7450750,0irq/46-4a10000013393-1kworker/u3:022:05:230
7450750,0irq/46-4a10000013244-21chrt22:02:300
7450750,0irq/46-4a10000011738-21runrttasks20:24:020
7450750,0irq/46-4a10000011336-1kworker/u3:223:34:230
7450750,0irq/46-4a10000011092-1kworker/u3:220:25:010
7350750,0irq/45-4a10000017416-21grep20:39:530
252502750,0sleep020120-1kworker/u3:119:27:400
18061997550,0cyclictest0-21swapper00:14:370
87952740,0chrt7967-1kworker/u3:221:49:460
7450740,0irq/46-4a10000028386-1kworker/u3:122:50:200
7450740,0irq/46-4a10000026813-21runrttasks21:06:370
7450740,0irq/46-4a10000024984-21runrttasks00:10:470
7450740,0irq/46-4a10000020120-1kworker/u3:119:29:360
7450740,0irq/46-4a10000018639-21sendmail-msp22:20:260
7450740,0irq/46-4a10000016772-1kworker/u3:023:55:000
7450740,0irq/46-4a10000016556-21chrt23:46:400
7450740,0irq/46-4a10000013485-1kworker/u3:120:30:230
2958927410,0sleep029587-21meminfo21:15:050
18061997450,0cyclictest0-21swapper22:14:330
7450730,0irq/46-4a100000468-1kworker/u3:121:30:160
7450730,0irq/46-4a10000031998-21runrttasks19:47:010
7450730,0irq/46-4a10000031905-1kworker/u3:122:59:550
7450730,0irq/46-4a10000031880-1kworker/u3:000:36:080
7450730,0irq/46-4a10000028872-1kworker/u3:200:29:470
7450730,0irq/46-4a10000028872-1kworker/u3:200:28:190
7450730,0irq/46-4a10000026063-1kworker/u3:022:45:000
7450730,0irq/46-4a10000024206-1kworker/u3:219:34:580
7450730,0irq/46-4a10000020120-1kworker/u3:119:50:010
7450730,0irq/46-4a10000016419-21chrt22:10:320
7450730,0irq/46-4a1000001173-1kworker/u3:023:04:380
7350730,0irq/45-4a10000031000-21diskstats22:54:470
7350730,0irq/45-4a10000020120-1kworker/u3:119:15:370
233332730,0chrt21678-1kworker/u3:000:06:120
199302730,0chrt5914-1kworker/u3:020:46:080
18061997344,0cyclictest12109-21/usr/sbin/munin23:34:400
7450720,0irq/46-4a1000006678-1kworker/u3:100:19:550
7450720,0irq/46-4a1000005914-1kworker/u3:020:12:490
7450720,0irq/46-4a100000570-1kworker/u3:219:54:410
7450720,0irq/46-4a1000003279-1kworker/u3:120:05:080
7450720,0irq/46-4a10000024331-1kworker/u3:223:24:540
7450720,0irq/46-4a10000011507-1kworker/u3:222:24:490
7450710,0irq/46-4a10000027003-1kworker/u3:121:10:020
7450710,0irq/46-4a10000011797-21kworker/u2:422:39:290
7450700,0irq/46-4a10000016163-1kworker/u3:219:09:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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