The config limits chart for SL covers only V3 and 4, so I don't know for 
sure.

Red Hat has a chart covering RHEL 3, 4, and 5, indicating a drop in 
supported
maximum per-process memory, from 4gb to 3gb, for V5 over the prior versions:
http://www.redhat.com/rhel/compare/

I don't see hugemem kernel anywhere, not since SL 4 anyway.

To get 4gb I could run an earlier SL I suppose, or steal its .config file & 
roll
a new hugemem kernel...or better yet, code review the program asking for all 
that memory
in the first place :-\

Actually, that will be my tack...push it back on the developer : )


----- Original Message ----- 
From: "John Summerfield" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, January 19, 2008 3:04 PM
Subject: Re: System Configuration Limits for SL5


> markaoki wrote:
>> I imagine SL5's max x86 per-process virtual address space is now about 
>> 3gb,
>> vs. SL4.x's approx. 4gb, due to hugemem kernel being dropped from the 
>> RHEL 5
>> distribution.
>
> I imagine you're wrong. I expect the base kernel does what the kernel+ 
> variants have done in the past.
>
>>
>> If thats the case...would 64-bit SL5 allow more per-process memory?
>
> I expect you're right:-) I understand it's also quicker.
>
> Especially if you add even more RAM. I've discovered one of my desktop 
> supports 2 Gbyte DDR2, so it might get some on the "chuck 1 add 4" plan. 
> Wouldn't work at all well with IA32.
>
> -- 
>
> Cheers
> John
>
> -- spambait
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