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2025-12-07 - 17:49
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack4slot3.osadl.org (updated Sun Dec 07, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20155211718,77sleep020191-21unixbench_singl07:08:530
16738210714,29sleep016768-21ntp_kernel_pll_08:38:510
13575210214,16sleep013605-21munin-node08:29:020
2562210114,16sleep02573-21head09:34:120
13468210114,16sleep013471-21iostat_ios10:08:450
21083210014,16sleep021112-21df_inode07:13:280
63329913,16sleep0651-21netstat11:08:510
2833629914,16sleep028378-21munin-node12:33:540
2354129814,18sleep023555-21timerwakeupswit08:59:060
2266529814,16sleep022657-21latency_hist10:38:120
419929714,16sleep04226-21cat09:39:090
407429714,16sleep04080-21timerwakeupswit07:59:080
20892999715,72cyclictest25903-21munin-node09:09:570
20892999714,73cyclictest29928-21awk09:19:000
1834529714,16sleep018387-21nfs_client08:43:510
3225829614,16sleep03217-21snmpd07:48:160
1358629614,16sleep013587-21irqstats11:48:430
3129529514,16sleep031293-21ntp_states07:43:530
2470129513,15sleep024707-21munin-node09:03:400
20892999515,71cyclictest7035-21ntpq08:08:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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