You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-10-12 - 18:00
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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rackeslot6.osadl.org (updated Sat Oct 12, 2024 12:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
158466899133104,17cyclictest1624430-21gpgv09:10:001
15846689911499,11cyclictest3105085-21systemd-journal09:30:001
158466399111105,4cyclictest1587854-21kworker/u8:1+events_unbound07:30:000
158466399111105,4cyclictest1587854-21kworker/u8:1+events_unbound07:29:590
15846689910578,15cyclictest1632501-21latency_hist09:35:011
1584663999788,6cyclictest3105085-21systemd-journal11:30:000
1584663998980,6cyclictest1617689-21kworker/u8:3+flush-179:009:00:250
1584663998980,6cyclictest1617689-21kworker/u8:3+flush-179:009:00:240
1584663998478,4cyclictest1596180-21kworker/u8:0+events_unbound07:45:140
1584668998356,9cyclictest1605745-21apt-get08:15:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional