Question about threads

[Rafael Umann]

On Thu, 19 Jun 2008 08:05:21 -0700
"Michael S. Fischer" <michael at dynamine.net> wrote:

> On Thu, Jun 19, 2008 at 5:37 AM, Rafael Umann
> <rafael.umann at terra.com.br> wrote:
> 
> > > What is your request:connection ratio?
> >
> > Unfortunately now i dont have servers doing 20000 hits/second, and
> > thats why i dont have stats for you.
> 
> 
> Actually, it's right there in your varnishstat output:
> 
>    36189916       476.66       250.71 Client connections accepted
>   404804204      5494.13      2804.30 Client requests received
> 
> Your request:connection ratio is > 10:1!  This is a very good
> situation to be in.  varnish doesn't have to spawn nearly as many
> threads as it would if the ratio were lower, as is common at many
> other sites.

OK, what i meant is that i dont have the stats for the amount of
hits/second that i told u. Anyway, with this amount of traffic, with
this timeouts that i set, it will probablly be the same.

> 
> > I have 6 servers runing this
> > service now, each one doing 5500 hits/sec with 10% CPU usage, and
> > this infrastructure scales to 20000 hits/sec each server.
> 
> 
> It's probably inaccurate to assume that things will scale linearly :)

Its not with Varnish :) actually i was surprised with this, but it
scales almost linearly to the 20000 hits/sec (ok, ok, with a litle bit
of response time decrease), but it dont go any further.

> 
> Best regards,
> 
> --Michael
> 
> E-mail verificado pelo Terra Anti-Spam.
> Para classificar como spam ou não spam, visite
> http://mail.terra.com.br/cgi-bin/reportspam.cgi?+_d=SCY1ODAyNDQ3I3Blcm0hdGVycmEmMSwxMjEzODg3OTIzLjk1ODU0MC4xNjgyMC5nYW5hbm9xdWUudGVycmEuY29tLDU0Mzc=
> Verifique periodicamente a pasta Spam para garantir que apenas
> mensagens indesejadas sejam classificadas como Spam.
> 
> Esta mensagem foi verificada pelo E-mail Protegido Terra.
> Atualizado em 19/06/2008


-- 
Rafael Umann <rafael.umann at corp.terra.com.br>
Suporte Engenharia 1
Terra Networks Brasil S/A 
Tel: 55 (51) 3284-4344