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Re: Does SMP significantly increase LVS performance ?

To: Zhao Hongfei <zhaohf@xxxxxxxxxxxxxxx>
Subject: Re: Does SMP significantly increase LVS performance ?
Cc: "lvs-users@xxxxxxxxxxxxxxxxxxxxxx" <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
From: Julian Anastasov <uli@xxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 13 Mar 2000 07:52:50 +0200 (EET)
        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

> 
> > 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>



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