You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-07-27 - 03:09
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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rackdslot1.osadl.org (updated Fri Jul 26, 2024 12:46:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1659421800,9sleep015876-21/usr/sbin/munin07:05:220
1176911690,7ptp4l0-21swapper/107:06:421
1176911110,16ptp4l0-21swapper/207:05:012
1176911090,16ptp4l0-21swapper/307:05:033
117691660,2ptp4l0-21swapper/208:45:042
117691660,2ptp4l0-21swapper/208:45:042
1823299651,31cyclictest8146-21/usr/sbin/munin07:55:240
117691650,28ptp4l6127-21cut11:20:132
18235996451,7cyclictest41-21ksoftirqd/311:05:113
1823299646,27cyclictest2532-21cpuspeed07:45:120
1823299640,29cyclictest29285-21/usr/sbin/munin09:50:260
1823299631,27cyclictest32734-21/usr/sbin/munin08:50:270
1823299631,27cyclictest1142-21runrttasks08:10:250
1823299631,25cyclictest13960-21/usr/sbin/munin11:35:220
1823299631,24cyclictest28809-21latency_hist12:10:000
1823299631,23cyclictest0-21swapper/009:25:230
117691630,2ptp4l0-21swapper/208:30:032
18233996226,9cyclictest25-21ksoftirqd/110:40:151
18233996226,8cyclictest25-21ksoftirqd/107:50:161
1823299620,25cyclictest25203-21awk09:40:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional