Solaris SPARC speed issue Post: 302697499

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Operating Systems Solaris Solaris SPARC speed issue Post 302697499 by Pug on Friday 7th of September 2012 12:34:51 AM

09-07-2012

Registered User

Solaris SPARC speed issue

Hello helpful Unix gurus!

First, I appreciate any help I can get.

I have a product that we have ported (for years now) on Solaris SPARC 7.x OS from 1998 (or around that time I guess) that is compiled to a 32 executable. It has run (with various modifications over the years) on any Solaris SPARC platform (as far as I know).

Recently I have a customer that expects the program to run much faster. This program is a number crunching type of utility that goes off and does file input, parsing, bit manipulation and output and then exits, so normally it is pretty fast). It is written in C/C++ and is compiled to mostly native code with a few calls to the C run time library (static linkage).

So my question is this: is the fact that this is a 32 bit SPARC executable slowing down its running on a 64 bit SPARC. It is running on the following Solaris platform:

Code:

uname -a
SunOS appomahadev2 5.10 Generic_147440-01 sun4v sparc sun4v Solaris

isainfo -v
64-bit sparcv9 applications
        hpc vis3 fmaf asi_blk_init vis2 vis popc
32-bit sparc applications
        hpc vis3 fmaf asi_blk_init vis2 vis popc v8plus div32 mul32

I am asking to see:

1. if there is a known reason why the 32bit exe should run slower on a 64 bit platform?

2. if re-compiling this code on a newer Solaris SPARC 64 OS
will generate a SIGNIFICANTLY faster executable?

Getting a new Solaris SPARC box seems to be expensive and is not something we really want to do unless we need to.

Does anyone know of a cross compiling method whereby we can compile on a cheaper platform and target this platform?
Any ideas?

Last edited by Don Cragun; 01-14-2016 at 03:13 AM.. Reason: Add CODE tags; drop FONT and SIZE tags.

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LEARN ABOUT SUSE

install-solaris

install-solaris(1M)													       install-solaris(1M)

NAME

       install-solaris - install the Solaris operating system

SYNOPSIS

       install-solaris

       install-solaris	invokes  the  Solaris  Install	program. Depending on graphical capability and available memory at the time of invocation,
       install-solaris invokes either a text-based installer or a graphical installer.

       The following minimum requirements for physical memory dictate which features are available during installation:

       For SPARC machines:

       128 MB

	   Minimum physical memory for all installation types

       128 MB

	   Minimum physical memory required for windowing system

       384 MB

	   Minimum physical memory required for graphical-based installation

       For x86 machines:

       256 MB

	   Minimum physical memory for all installation types

       256 MB

	   Minimum physical memory required for windowing system

       512 MB

	   Minimum physical memory required for graphical-based installation

       In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number  of  fea-
       tures available.

       install-solaris	exists	only  on  the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the  for more
       details.

       install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the
       installation media. Refer to the  for disk space requirements.

       Refer to the  for more information on the various menus and selections.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcdrom  (Solaris instal-  |
       |			     |lation media)		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       pkginfo(1), install(1M), pkgadd(1M), attributes(5)

       It is advisable to exit install-solaris by means of the exit options in the install-solaris menus.

								    23 Sep 2005 					       install-solaris(1M)