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Re: Does SMP significantly increase LVS performance ?

To: Julian Anastasov <uli@xxxxxxxxxxxxxxxxxxxxxx>, "lvs-users@xxxxxxxxxxxxxxxxxxxxxx" <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: Does SMP significantly increase LVS performance ?
From: Zhao Hongfei <zhaohf@xxxxxxxxxxxxxxx>
Date: Mon, 13 Mar 2000 15:42:16 +0800
Dear sir,


Julian Anastasov wrote:

>         Hello,
>
> On Mon, 13 Mar 2000, Zhao Hongfei wrote:
>
> >
> >
> > 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.
> >
> > Why?
> > How to solve this problem?
>
>         It is already solved in the latest 2.3 kernels: softnet

I see.

>
>
> >
> > > This is not a LVS limitation.
> > > Probably in 2.[3-4]. If you are using the director as real server too,
> > > SMP is recommended.
>
> Regards
>
> --
> Julian Anastasov <uli@xxxxxxxxxxxxxxxxxxxxxx>

Thanks.

Best regards.
zhao.





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