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Subject: RE: [PATCH][IO_APIC] 2.5.63bk7 irq_balance improvments / bug-fixes
From: Arjan van de Ven <arjan@fenrus.demon.nl>
To: "Kamble, Nitin A" <nitin.a.kamble@intel.com>
Cc: Andrew Morton <akpm@digeo.com>, linux-kernel@vger.kernel.org,
       kai.bankett@ontika.net, mingo@redhat.com,
       "Nakajima, Jun" <jun.nakajima@intel.com>,
       "Mallick, Asit K" <asit.k.mallick@intel.com>,
       "Saxena, Sunil" <sunil.saxena@intel.com>
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On Wed, 2003-03-05 at 05:21, Kamble, Nitin A wrote:
> There are few issues we found with the user level daemon approach.
>  =20
>    Static binding compatibility: With the user level daemon, users can
> not =20
> use the /proc/irq/i/smp_affinity interface for the static binding of
> interrupts.

no they can just write/change the config file, with a gui if needed

>=20
>   There is some information which is only available in the kernel today,

there's also some information only available to userspace today that the
userspace daemon can and does use.

> Also the future implementation might need more kernel data. This is
> important for interfaces such as NAPI, where interrupts handling changes
> on the fly.

ehm. almost. but napi isn't it ....

and the userspace side can easily have a system vendor provided file
that represents all kinds of very specific system info about the numa
structure..... working with every kernel out there.


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