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Re: RFC: IRQ affinity (aka interrupt routing)
Thank you very much for your comment.
(2014/07/25 18:15), Martin Husemann wrote:
A few general comments:
- best UI is no UI - the kernel should distribute interrupts automatically
(if possible) as fair as possible over time doiing some statistics
I agree the computer should distribute interrupts automatically, but
I think balancing interrupts is too complex for the kernel. So I think
the balancing should be done by the userland daemon which use the UI.
Implementing and tuning the userland daemon are future works.
- a UI to wire some device interrupts to a special CPU would be ok,
I prefer a new intrctrl for that
- vmstat -i could gain an additional column with the current target cpu
of the interrupt
I am afraid of breaking backward compatibility, so I avoid to change
- the device name is nice, but what about shared interrupts?
I forgot shared interrupts... In the current implement, the device name
is overwritten by the device established later. Of course this is ugly,
so I must fix it.
Internet Initiative Japan Inc.
Device Engineering Section,
Core Product Development Department,
Kengo NAKAHARA <k-nakahara%iij.ad.jp@localhost>
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