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2026-07-27 - 06:34
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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 Mon Jul 27, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502570,0irq/46-4a10000012-21ksoftirqd/019:03:590
175739912943,0cyclictest4875-21/usr/sbin/munin23:13:460
175739912636,0cyclictest31916-21seq19:48:270
175739912342,0cyclictest30248-21aten_r4power_en22:53:350
175739912336,0cyclictest19473-21seq19:13:310
175739912334,0cyclictest25189-21seq21:03:370
175739912334,0cyclictest1349-21cstates19:53:370
175739912333,0cyclictest15156-21diskstats20:33:490
175739912251,0cyclictest7350irq/45-4a10000019:18:490
175739912140,0cyclictest30446-21df21:18:440
175739912134,0cyclictest23708-21/usr/sbin/munin20:58:490
175739912132,0cyclictest18441-21cstates23:53:390
175739912131,0cyclictest12041-21seq20:24:040
175739912130,0cyclictest13012-21sendmail-msp23:38:280
175739912129,0cyclictest9078-21runrttasks20:14:260
175739912110,0cyclictest18944-21ntpdc22:19:190
175739912036,0cyclictest22356-21grep20:54:110
175739912035,0cyclictest30834-21seq19:44:040
175739912035,0cyclictest20276-21df_inode22:23:450
175739912033,0cyclictest31784-21cron00:33:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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