Re: [Zope] how many zope instances

2008-04-06 Thread Dieter Maurer
Garry Saddington wrote at 2008-4-4 20:31 +0100:
> ...
>OK, so does the amount of RAM needed depend mainly on the size of the data.fs 
>or is there another major component?

This is only one component:

  A process with an open "FileStorage" needs 8 bytes per object
  in this storage.

Other RAM requirements do not directly depend on the storage size.



-- 
Dieter
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Re: [Zope] how many zope instances

2008-04-04 Thread Andreas Jung



--On 4. April 2008 20:31:28 +0100 Garry Saddington 
<[EMAIL PROTECTED]> wrote:



On Friday 04 April 2008 16:38, Andreas Jung wrote:

--On 4. April 2008 16:33:48 +0100 Garry Saddington

<[EMAIL PROTECTED]> wrote:
> I have tried to find information on how many Zope instances can be run
> on a  single machine but all searches have failed to be definitive. Is
> there any information on this, because I would like to have a separate
> instance for each of my customers running on a different port number
> and it  would be useful to be able to predict the number of servers I
> would need.

As you might imagine: everything depends on the resources: Ram,
diskspace, CPU. A Zope instance might take as little as 80MB Ram or up
to 2GB per process. A site might consume no CPU, a Zope-based p0rn site
might require several machines...so basically we can not give a valid
answers..everything depends on a lot of parameters and there is no Zope
formula.

Andreas

OK, so does the amount of RAM needed depend mainly on the size of the
data.fs  or is there another major component?


As said: there is no formula. Memory consumption depends on caches, 
third-party products, products with memory leaks...nothing more to add.


Andreas

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Re: [Zope] how many zope instances

2008-04-04 Thread Jaroslav Lukesh


- Original Message - 
From: "Garry Saddington" <[EMAIL PROTECTED]>


As you might imagine: everything depends on the resources: Ram, 
diskspace,

CPU. A Zope instance might take as little as 80MB Ram or up to 2GB per
process. A site might consume no CPU, a Zope-based p0rn site might 
require
several machines...so basically we can not give a valid 
answers..everything

depends on a lot of parameters and there is no Zope formula.

Andreas
OK, so does the amount of RAM needed depend mainly on the size of the 
data.fs

or is there another major component?
regards
Garry


You should have >2G data.fs and your zope instance could consume about 30MB. 
It depends on cached data amount.


Regards, JL. 


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Re: [Zope] how many zope instances

2008-04-04 Thread Garry Saddington
On Friday 04 April 2008 16:38, Andreas Jung wrote:
> --On 4. April 2008 16:33:48 +0100 Garry Saddington
>
> <[EMAIL PROTECTED]> wrote:
> > I have tried to find information on how many Zope instances can be run on
> > a  single machine but all searches have failed to be definitive.
> > Is there any information on this, because I would like to have a separate
> > instance for each of my customers running on a different port number and
> > it  would be useful to be able to predict the number of servers I would
> > need.
>
> As you might imagine: everything depends on the resources: Ram, diskspace,
> CPU. A Zope instance might take as little as 80MB Ram or up to 2GB per
> process. A site might consume no CPU, a Zope-based p0rn site might require
> several machines...so basically we can not give a valid answers..everything
> depends on a lot of parameters and there is no Zope formula.
>
> Andreas
OK, so does the amount of RAM needed depend mainly on the size of the data.fs 
or is there another major component?
regards
Garry
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Re: [Zope] how many zope instances

2008-04-04 Thread Andreas Jung



--On 4. April 2008 16:33:48 +0100 Garry Saddington 
<[EMAIL PROTECTED]> wrote:



I have tried to find information on how many Zope instances can be run on
a  single machine but all searches have failed to be definitive.
Is there any information on this, because I would like to have a separate
instance for each of my customers running on a different port number and
it  would be useful to be able to predict the number of servers I would
need.


As you might imagine: everything depends on the resources: Ram, diskspace, 
CPU. A Zope instance might take as little as 80MB Ram or up to 2GB per 
process. A site might consume no CPU, a Zope-based p0rn site might require

several machines...so basically we can not give a valid answers..everything
depends on a lot of parameters and there is no Zope formula.

Andreas

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[Zope] how many zope instances

2008-04-04 Thread Garry Saddington
I have tried to find information on how many Zope instances can be run on a 
single machine but all searches have failed to be definitive.
Is there any information on this, because I would like to have a separate 
instance for each of my customers running on a different port number and it 
would be useful to be able to predict the number of servers I would need. 
Regards
Garry
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