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Re: Does SMP significantly increase LVS performance ?

To: Julian Anastasov <uli@xxxxxxxxxxxxxxxxxxxxxx>, Joseph Mack <mack@xxxxxxxxxxx>
Subject: Re: Does SMP significantly increase LVS performance ?
Cc: CERBA Jacques -GRE <jacques.cerba@xxxxxxx>, lvs-users@xxxxxxxxxxxxxxxxxxxxxx
From: Wayne <wayne@xxxxxxxxxxxxxxx>
Date: Mon, 13 Mar 2000 08:26:38 -0800
At 06:15 PM 3/11/00 +0200, Julian Anastasov wrote:

>         Hello,
>
>On Sat, 11 Mar 2000, Joseph Mack wrote:
>
> > On Thu, 9 Mar 2000, CERBA Jacques -GRE wrote:
> > 
> > > Doe's somebody have any idea or data ?
> > 
> > it depends :-)
> > 
> > If you're using VS-NAT then you'll need a machine that can handle the full
> > bandwidth of the expected connections. If this is T1, you won't need much
> > of a machine. If it's 100Mbps you'll need more (I can saturate 100Mbps
> > with a 75MHz machine). If you're running VS-DR or VS-Tun you'll need
> > less horse power. Since most LVS is I/O I would suspect that SMP won't
> > get you much. However if the director is doing other things too,
> > then SMP might be useful
>
>         Yep, LVS in 2.2 can't use both CPUs. This is not a LVS limitation.
>Probably in 2.[3-4]. If you are using the director as real server too,
>SMP is recommended.

Does anyone know why it can't use both CPUs?  I thought Linux kernel
is MP kernel that can take advantage of SMP.


>Regards
>
>--
>Julian Anastasov <uli@xxxxxxxxxxxxxxxxxxxxxx>
>
>



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