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2025-11-18 - 09:19
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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 rack7slot3.osadl.org (updated Tue Nov 18, 2025 00:44:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1833899264238cyclictest14972-21latency_hist21:12:260
1833899255222cyclictest3778-21df_inode22:42:290
1833899255193cyclictest20546-21sendmail23:56:380
1833899250225cyclictest27340-21ssh22:04:150
1833899250188cyclictest3297-21sshd22:40:080
1833899249223cyclictest29555-21apt-get22:13:440
1833899248216cyclictest6002-21grep20:32:430
1833899246219cyclictest26151-21ssh21:59:110
1833899246217cyclictest7432-21irqstats22:58:100
1833899245219cyclictest24285-21fschecks_time00:12:430
1833899243216cyclictest5058-21cut22:47:490
1833899243216cyclictest12602-21munin-node0
1833899242217cyclictest17865-21ntp_states23:44:100
1833899242212cyclictest2872-21snmpd00:07:080
1833899242180cyclictest7017-21ls20:37:270
1833899242180cyclictest25478-21df21:57:030
1833899241214cyclictest1465-21ssh22:32:510
1833899241213cyclictest19406-21latency_hist23:52:070
1833899240216cyclictest14948-21munin-node0
1833899240216cyclictest10852-21ssh23:13:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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