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2026-04-15 - 11:54
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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 Wed Apr 15, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502880,0irq/46-4a10000021560-1kworker/u3:119:04:470
293082846,0sleep029314-21ntp_states22:06:180
7350830,0irq/45-4a1000008406-21df_abs22:40:520
7450820,0irq/46-4a10000022682-21chrt21:46:300
7450810,0irq/46-4a100000460-21snmpd20:53:420
7450810,0irq/46-4a10000016775-21aten_r4power_vo23:05:450
7450810,0irq/46-4a10000015266-21seq21:25:590
7350810,0irq/45-4a100000460-21snmpd22:24:050
7450800,0irq/46-4a100000558-21/usr/sbin/munin19:10:360
7450800,0irq/46-4a1000005082-21grep00:06:010
7450800,0irq/46-4a100000460-21snmpd23:44:510
7450800,0irq/46-4a100000460-21snmpd22:29:210
7450800,0irq/46-4a100000460-21snmpd21:13:500
7450800,0irq/46-4a10000030781-21seq23:46:010
7450800,0irq/46-4a10000030194-21sendmail20:35:330
7450800,0irq/46-4a10000025504-21seq23:30:510
7450800,0irq/46-4a10000023797-21chrt21:50:540
7450800,0irq/46-4a10000023383-21awk23:25:320
7450800,0irq/46-4a10000019933-21cron23:15:310
7450800,0irq/46-4a10000014549-21runrttasks19:48:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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