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From: Lus Miguel Silva (lms_at_ispgaya.pt)
Date: Sun 09 Nov 2003 - 17:18:15 GMT


Yes, my server is heavily loaded.
I have 2 IDE disks at 7200rpm, doing raid1.
The big load comes (mainly) from the mail server (when users use imapd thru the webmail).

I use kernel 2.4.21 + ctx17.

I really dont believe in SMP solutions.
It is far more expensive then "setting up a cluster".

In the past we (at my university) invested in dual processor boards but now we are convinced that it is not a $good$ $solution$ (heheh).

According to the funcionality of how the openmosix kernel works (imho) it would be the best solution to load balance vservers.

The vserver project is great for "low'cost production servers" and...*SECURITY*!

I think that if you would be able to get us vserver'users a "cluster'like" solution...it would be the BEST "system administration" project *ever*!

Best,
+-----------------------------------------
| Lus Miguel Silva
| Network Administrator@ ISPGaya.pt
| Rua Antnio Rodrigues da Rocha, 291/341
| Sto. Ovdio 4400-025 V. N. de Gaia
| Portugal
| T: +351 22 3745730/3/5 F: +351 22 3745738
| G: +351 93 6371253 E: lms_at_ispgaya.pt
| H: http://lms.ispgaya.pt/
+-----------------------------------------
-----Mensagem original-----
De: vserver-admin_at_list.linux-vserver.org
[mailto:vserver-admin_at_list.linux-vserver.org]Em nome de Herbert Poetzl
Enviada: domingo, 9 de Novembro de 2003 16:38
Para: Lus Miguel Silva
Cc: vserver_at_list.linux-vserver.org
Assunto: Re: [Vserver] Vserver + OpenMosix...


On Sun, Nov 09, 2003 at 09:48:08AM -0000, Lus Miguel Silva wrote:
> Hello everybody,
>
> I just thought of something!
> How about the vserver project "united" with the openmosix project?
> It would be great to be able to have multiple vservers enjoying
> the cheerfull'blesses of multi'processing.

let me address this separated ...

> One of my servers is a X86 2.6ghz with 512Mb ram running about 6
> vservers and it is *totally* lagged.

either your 6 servers do really hard work, which will
bring down every system sooner or later, or your kernel
and/or configuration is not optimal. Another reason
could be a slow I/O (disk) and/or memory interface,
which usual is the bottleneck nowadays ...

what you could do/try:

 - get a recent kernel and patch rmap and maybe O(1)
 - use faster memory/disks (maybe striping, raid5)
 - add a second processor, SMP systems are much more
   resposive (smooth) with vservers

> It would be great if we could balance the load thru other machines
> (like we do with openmosix).

I agree that this sounds interesting and it might be
a viable solution to scale the vserver project beyond
the physical limits of one MP machine ...

I do not have any deeper knowledge of OpenMosix and
no Farm where such a project could be tested/developed
so if there is interest in doing this, we'll need both.

best,
Herbert

>
> Best,
> +-----------------------------------------
> | Lus Miguel Silva
> | Network Administrator@ ISPGaya.pt
> | Rua Antnio Rodrigues da Rocha, 291/341
> | Sto. Ovdio 4400-025 V. N. de Gaia
> | Portugal
> | T: +351 22 3745730/3/5 F: +351 22 3745738
> | G: +351 93 6371253 E: lms_at_ispgaya.pt
> | H: http://lms.ispgaya.pt/
> +-----------------------------------------
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