[CentOS] CentOS 3 vs. CentOS 4 Memory Utilization

[Stephen John Smoogen]

On 2/9/07, hkclark at gmail.com <hkclark at gmail.com> wrote:
> On 2/8/07, Johnny Hughes <mailing-lists at hughesjr.com> wrote:
> >
> > It should not be a problem as lots of your memory used is buffers and
> > cache.
> >
> > CentOS-3 is going to be supported for a while yet (EOL is scheduled for
> > Oct 31, 2010), so if it is working perfectly and doing what they want,
> > they may want to keep it though.
> >
> > If they upgrade or don't, the memory should be OK either way .
> >
>
> Hi Johnny,
>
> Good info -- thanks.  They have a small app they want to add that
> requires a newer version of Perl than 5.8.0 that comes with CentOS 3.
> Rather than getting into a non-RPM version of Perl, we were thinking
> going to CentOS 4 would be easier and cleaner.
>
> In your experience, would you say that my "quick & dirty" measurement
> of CentOS 4 needing 10-25 MB more memory than CentOS 3 (again, for a
> non-X box with a minimal install) is accurate (at least in approximate

It is more true that the 2.4.20+stuff kernel (RHEL-3) and the
2.6.9+stuff kernel (RHEL-4) allocate buffers differently, and in some
ways count free/buffered memory different.




-- 
Stephen J Smoogen. -- CSIRT/Linux System Administrator
How far that little candle throws his beams! So shines a good deed
in a naughty world. = Shakespeare. "The Merchant of Venice"