Re: polling's future [was: Re: Dynamic Ticks/HZ]

--------
In message <5098E526.6070101@freebsd.org>, Andre Oppermann writes:

>Hi Luigi,
>
>do you agree on polling having outlived its usefulness in the light
>of interrupt moderating NIC's and SMP complications/disadvantages?

Can I just point out, that what we have is not in fact "device-polling"
but only "some-kinds-of-network-interface-polling" ?

I think it should go away, and if there still is a relevant
usage segment, be replaced by _real_ "device-polling" which is
not tied to the network stack.

Amongst the sensible uses for that would be high-speed serial
interfaces etc.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.
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