Private bug reported:
Visible realtime performance gaps observed between single and dual sockets
system for ubuntu realtime kernel - on the dual sockets system, the max latency
of cyclictest could be upto 20+us within a few minutes, while the single socket
is less than 12us even for 24Hours.
The realtime kernel under test is:
linux-image-5.15.0-1003-realtime_5.15.0-1003.3_amd64.deb.
And as a reference, the max could be as low as 7 us on our current os/kernel
variants.
For more details, please refer to the attached email.
** Affects: ubuntu
Importance: Undecided
Status: New
** Attachment added: "RE Two socket machine latency - v5.15 Jammy vs CentOS.msg"
https://bugs.launchpad.net/bugs/1968396/+attachment/5578463/+files/RE%20Two%20socket%20machine%20latency%20-%20v5.15%20Jammy%20vs%20CentOS.msg
** Information type changed from Public to Private
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https://bugs.launchpad.net/bugs/1968396
Title:
realtime performance on dual socket system
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