linuxsampler-devel

RE: [Linuxsampler-devel] Polyphony, Was: MacOSX note release prob lem solved

[Peter R. <pet...@de...>]

Hi all,

Quick question from one of the "lurkers" on this list ;-)

What are the current memory addressing limits under Linux?

A lot of "heavy" Gigastudio users, like myself, are running into the 2 Gb
address space limit of the current Win32 OS's.

Just curious. If Linux does not have this limit, then that will be a super
advantage for LinuxSampler.

Take care,

Peter Roos
www.PeterRoos.com


-----Original Message-----
From: Robert Jonsson [mailto:rob...@da...] 
Sent: Wednesday, May 26, 2004 12:50
To: lin...@li...
Subject: Re: [Linuxsampler-devel] Polyphony, Was: MacOSX note release
problem solved


Hi,

> On the other hand each voice needs a streaming buffer which is currently
> set to 256KByte.
> So 128 voices use 32MByte of RAM, 256voices 64MByte of RAM.
> I think for now 128 is a good value since it does not use that much memory
> and  stresses the average machine's CPU/disk quite a bit.

I don't know if it's a big deal, but 32MB ram is nothing by todays
standards, 
I don't run any machines with less than 512MB (oh, I do have a file server 
with 256MB come to think of it). 
If it helps I would think it quite natural to increase the memory
consumption.

/Robert



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Re: [Linuxsampler-devel] Polyphony, Was: MacOSX note release prob lem solved

[Mark K. <mk...@co...>]

Peter Roos wrote:
> Hi all,
> 
> Quick question from one of the "lurkers" on this list ;-)
> 
> What are the current memory addressing limits under Linux?
> 
> A lot of "heavy" Gigastudio users, like myself, are running into the 2 Gb
> address space limit of the current Win32 OS's.
> 
> Just curious. If Linux does not have this limit, then that will be a super
> advantage for LinuxSampler.
> 
> Take care,
> 
> Peter Roos
> www.PeterRoos.com
> 
> 

Hi Peter,
    There is a 'BIGMEM' option when you build the Linux kernel. It can 
take you beyond the 2GB limit pretty easily. 5 years ago folks were 
doing 3-4GB in Linux boxes. I don;t know where they are today.

    However, any machine's ability to use this is (I think) somewhat 
dependent on the motherboard chipset the machine is built around and the 
type of memory technology it uses. Still most economical machines only 
have 3 memory slots so 3GB might be the practical limit right now, but 
if you bought a server type machine you could almost certainly go higher 
as some of them offer more memory slots.

    I can do some research on what the limits are these days if the info 
is of a time sensitive nature to you. (I.e. - you're buying a new machine.)

- Mark

Re: [Linuxsampler-devel] Polyphony, Was: MacOSX note release prob lem solved

[Mark K. <mk...@co...>]

Peter Roos wrote:
> Hi all,
> 
> Quick question from one of the "lurkers" on this list ;-)
> 
> What are the current memory addressing limits under Linux?
> 
> A lot of "heavy" Gigastudio users, like myself, are running into the 2 Gb
> address space limit of the current Win32 OS's.
> 
> Just curious. If Linux does not have this limit, then that will be a super
> advantage for LinuxSampler.
> 
> Take care,
> 
> Peter Roos
> www.PeterRoos.com
> 

Peter,
    I'm told that the 2.6 series kernels, as well as some 2.4 series 
kernels, support up to 64GB of DRAM.

    Should be a metric that the Windows platform running GSt would have 
a hard time gettign to. ;-)

- Mark