[CentOS-devel] EPEL and i686
Manuel Wolfshant
wolfy at nobugconsulting.ro
Fri Jan 24 23:37:51 UTC 2014
On 01/25/2014 01:32 AM, Stephen John Smoogen wrote:
>
>
>
> On 24 January 2014 16:00, Todd Rinaldo <toddr at cpanel.net
> <mailto:toddr at cpanel.net>> wrote:
>
>
> On Jan 24, 2014, at 4:29 PM, Karanbir Singh <mail-lists at karan.org
> <mailto:mail-lists at karan.org>> wrote:
>
> > On 01/24/2014 10:26 PM, Manuel Wolfshant wrote:
> >> On 01/25/2014 12:13 AM, Karanbir Singh wrote:
> >>> Hi
> >>>
> >>> Whats the plan for EPEL i686 / EL7 ? Does anyone know if there
> is even
> >>> going to be a multilib attempt or is everything going to stay
> x86_64 clean ?
> >> they build for x86_64 and ppc64 only,
> >
> > So then the question is - what is the process to enable i686
> there ( or,
> > do we then need to own all of EPEL - atleast some subset )
> locally if we
> > are going to attempt a i686 CentOS build ?
> >
> > - KB
>
> Could I ask what the use case is for i386 support? I know that the
> pointers are smaller but memory is cheap. Is this a speed or a
> hardware or a can it be done goal?
>
>
> There are several items I see i686 support being needed:
>
> 1) Memory is not cheap in cloud and hosted environments. Especially in
> cloud where you might be firing up a thousand hosts at a time.
> 2) Multiple Virtual Machines don't do well in the transition from 32
> bit to 64 bit in that their memory usage doesn't go up by *2 but can
> be ^2 depending on the workload. Python is a perfect example of this
> but there are cases in java and other 'virtual machine' environments
> where it happens.
> 3) As nice as having i686 compat libraries are for some commercial
> apps you end up needing a lot more than what is provided by the OS.
> This really comes up when you have to run a mixed set of commercial
> binaries that need something that only EL7 provides but also needs
> stuff that EL6 had. Thus you end up needing i686 everything.
for what is worth I have some _expensive_ EDA tools from Incisive which
bundle 64bit binaries in the supposedly 32bit toolchain as well as an
IBM tool which requires a 32bit OS lib in its _64_bit toolchain....
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.centos.org/pipermail/centos-devel/attachments/20140125/ddf3bf79/attachment.html>
More information about the CentOS-devel
mailing list