[CCing the regression list, as it should be in the loop for regressions: https://docs.kernel.org/admin-guide/reporting-regressions.html] On 08.02.24 16:43, Mathias Nyman wrote: > On 8.2.2024 12.32, Mikhail Gavrilov wrote: >> On Thu, Feb 8, 2024 at 2:23 PM Mathias Nyman >> <mathias.nyman@xxxxxxxxxxxxxxx> wrote: >>> >>> My guess is that CPU0 spends more time with interrupts disabled than >>> other CPUs. >>> Either because it's handling interrupts from some other hardware, or >>> running >>> code that disables interrupts (for example kernel code inside >>> spin_lock_irq), >>> and thus not able to handle network adapter interrupts at the same >>> rate as CPU23 >> >> Can this be fixed? > > Not sure, I'm not that familiar with this area. > Maybe running irqbalance could help? Mikhail, what's the status of this? I wonder if I should track this as a regression to ensure Linus is aware of this. Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr If I did something stupid, please tell me, as explained on that page.
