>From a life-cycle management perspective, do what David said and go 64-bit.
>From a performance perspective, build both and MEASURE the results.
(Of course, you'll be running on a 64-bit kernel in most cases, so
getting a pure sample will be tricky.)
On Wed, Mar 27, 2013 at 10:37 AM, Andrew Po
> What is the situation with modern Z 9/10 hardware: should we change our
> scripts to build 64-bit or stay with 32-bit? The app is relatively small -
> let's say
> 1.5 Mb of memory for a resident set and modest CPU consumption - but a
> fully loaded customer configuration may have hundreds of ins
We have a product one of whose components is written in C; on Intel Linux we've
always built just 32-bit apps for both 32-bit & 64-bit systems because there is
little if any penalty for running a 32-bit app on a 64-bit system. Other
hardware differs: Itanium for instance, when we supported HP-UX
