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2026-07-03 - 06:51
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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 Fri Jul 03, 2026 00:44:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501990,0irq/46-4a10000014445-21/usr/sbin/munin19:04:520
73501020,0irq/45-4a10000029910-21/usr/sbin/munin21:25:450
7450960,0irq/46-4a1000003860-21sendmail-msp23:20:350
7450960,0irq/46-4a10000019944-21df19:19:390
7450950,0irq/46-4a1000009675-21seq20:24:360
7450950,0irq/46-4a10000029932-21perl00:34:570
7450950,0irq/46-4a10000025220-21missed_timers22:45:250
7450950,0irq/46-4a10000021145-21egrep00:09:350
7450940,0irq/46-4a1000008835-21sshd23:33:450
293732940,0sleep023061-1kworker/u3:221:20:570
217592940,0sleep021255-1kworker/u3:120:59:550
7450930,0irq/46-4a10000031690-21aten_r4power_po21:29:380
7450930,0irq/46-4a10000031638-21df_inode23:04:590
7450930,0irq/46-4a10000028720-21fw_conntrack19:44:550
7450930,0irq/46-4a1000002852-21/usr/sbin/munin21:40:030
7450930,0irq/46-4a10000028325-21fschecks_time22:55:000
7450930,0irq/46-4a10000026451-21sendmail-msp19:40:160
7450930,0irq/46-4a10000026381-21latency_hist21:14:260
7450930,0irq/46-4a10000018128-21seq22:24:590
7450930,0irq/46-4a10000014790-21memory23:50:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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