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[altq 1337] Re: AltQ and multi-proc

To: difrancesco@cres.it
Subject: [altq 1337] Re: AltQ and multi-proc
From: Kenjiro Cho <kjc@csl.sony.co.jp>
Date: Fri, 08 Feb 2002 01:52:53 +0900 (JST)
Cc: altq@csl.sony.co.jp
In-Reply-To: <3C626D07.30509.6AFD3A@localhost>
References: <3C626D07.30509.6AFD3A@localhost>
Sender: owner-altq@csl.sony.co.jp

Paolo Di Francesco wrote:
> Does multi processing improve AltQ performaces? And if yes, is it 
> linear, or how much distant from beeing linear?

No.  The performance critical parts of ALTQ is in the kernel.
SMP support in FreeBSD-4.x uses a giant lock for the kernel so that
only one processor is allowed to run in the kernel.

-Kenjiro

References:
- [altq 1334] AltQ and multi-proc
  - From: "Paolo Di Francesco" <difrancesco@cres.it>
- [altq 1334] AltQ and multi-proc
  - From: "Paolo Di Francesco" <difrancesco@cres.it>

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