You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-12-03 - 01:19
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack3slot2.osadl.org (updated Tue Dec 02, 2025 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81880022760,3sleep0818802-21netstat08:15:290
82755022640,3chrt827544-21sshd08:46:210
84787422580,3sleep0847875-21cat09:51:490
89639422480,3sleep0896395-21ssh12:18:380
82313222480,3chrt823129-21ntpq08:30:540
80219722410,3chrt802195-21sshd07:16:080
88348322400,3chrt22-21kcompactd011:40:060
87742422390,3chrt877417-21ntpq11:21:050
86552122280,2sleep0865522-21/usr/sbin/munin10:45:300
84314722140,3sleep0843150-21timerwakeupswit09:36:570
81001522010,3sleep0810018-21cut07:44:590
80017799199170,20cyclictest29-21kswapd007:36:590
86850021960,2sleep0868501-21latency_hist10:55:010
80718321920,2sleep0807185-21grep07:35:070
89984821870,2sleep0899849-21ssh12:29:210
80017799182156,18cyclictest831582-21kworker/u2:109:17:040
89506221800,2sleep0895064-21sort12:15:080
84139821790,3sleep0841401-21switchtime09:31:390
84951521740,4chrt849517-21find09:56:480
82563421680,4chrt825635-21awk08:40:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional