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2026-06-29 - 10:40
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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 Jun 29, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502760,0irq/46-4a10000012-21ksoftirqd/019:09:110
7450960,0irq/46-4a1000001764-21sendmail-msp20:20:140
2564429626,0sleep025630-21cron19:54:310
7450940,0irq/46-4a1000004193-21/usr/sbin/munin20:25:140
7450940,0irq/46-4a10000029412-1kworker/u3:220:09:190
1437129312,0sleep014412-21/usr/sbin/munin00:05:090
7450910,0irq/46-4a10000031345-21fw_conntrack20:10:010
7450910,0irq/46-4a10000025387-21runrttasks23:02:330
7450910,0irq/46-4a1000001747-21runrttasks20:19:310
7450910,0irq/46-4a10000014930-21users19:20:410
7450900,0irq/46-4a1000008158-21runrttasks23:46:210
7450900,0irq/46-4a10000027382-21sendmail-msp20:00:040
7450900,0irq/46-4a10000013764-21latency_hist20:54:340
7450890,0irq/46-4a100000438-21snmpd22:49:100
7450890,0irq/46-4a10000028300-21mailstats23:10:230
7450890,0irq/46-4a10000020560-21sendmail-msp19:39:440
7450890,0irq/46-4a10000016236-21open_files22:35:220
7450890,0irq/46-4a10000015987-21fw_conntrack21:00:040
7450890,0irq/46-4a10000012649-21irqstats00:00:140
7450880,0irq/46-4a10000094122sleep020:40:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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