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2026-07-05 - 07:16
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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 Sun Jul 05, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502510,0irq/46-4a1000007143-1kworker/u3:219:07:160
7350880,0irq/45-4a1000009595-21/usr/sbin/munin22:19:240
8930998656,0cyclictest0-21swapper19:28:180
7450850,0irq/46-4a10000026597-21sendmail-msp19:59:490
7350850,0irq/45-4a100000439-21awk20:15:180
7350850,0irq/45-4a10000016310-21sendmail-msp22:39:590
646028510,0sleep06463-21df_inode22:09:370
8930998455,0cyclictest0-21swapper23:01:350
8930998356,0cyclictest0-21swapper21:29:250
8930998352,0cyclictest0-21swapper19:18:200
7450830,0irq/46-4a100000438-21snmpd20:42:370
7450830,0irq/46-4a10000010630-21runrttasks19:14:170
7350830,0irq/45-4a1000006170-21/usr/sbin/munin23:44:260
7350830,0irq/45-4a1000003840-21users22:00:240
7350830,0irq/45-4a10000021668-21basename21:19:290
8930998257,0cyclictest0-21swapper20:34:240
8930998254,0cyclictest0-21swapper00:23:220
7450820,0irq/46-4a10000025901-21chrt23:05:140
7450820,0irq/46-4a10000022294-21chrt22:55:080
151952826,0sleep015197-21fw_forwarded_lo20:59:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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