[Info-vax] x86-64 VMS executable image sizes and memory requirements ?

[clair.grant@vmssoftware.com]

On Thursday, December 19, 2019 at 5:26:59 AM UTC-5, Simon Clubley wrote:
> On 2019-12-18, John Reagan <xyzzy1959 at gmail.com> wrote:
> >
> > We're building everything NOOPTIMIZE so it isn't worth looking at.
> >
> > That said, 
> >
> > EDTSHR.EXE, Alpha, optimized: 493 blocks on disk, 179,712 bytes of code
> > EDTSHR.EXE, Itanium, optimized: 724 blocks on disk, 302,960 bytes of code
> > EDTSHR.EXE, x86, NOT optimized: 589 blocks on disk, 227,120 bytes of code
> >
> 
> Thanks, John.
> 
> I'm amused that x86 not optimised is better than Itanium optimised. :-)
> 
> Code density on Alpha is lousy compared to VAX and from what I could tell
> from reading the Itanium manuals, Itanium appeared to have even worse
> code density.
> 
> Simon.
> 
> -- 
> Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
> Walking destinations on a map are further away than they appear.

Here is why it is difficult to make universal statements about comparative sizes. The following are Alpha, IPF, and x86 in that order. This is the file system which is almost 100% BLISS.


BAXTER$ dir/siz na$:[sys$ldr]f11bxqp.exe

Directory XFEK_RESD$:[SYS$LDR]

F11BXQP.EXE;1               908

Total of 1 file, 908 blocks.
BAXTER$ dir/siz ni$:[sys$ldr]f11bxqp.exe

Directory XFEJ_RESD$:[SYS$LDR]

F11BXQP.EXE;1              1682

Total of 1 file, 1682 blocks.
BAXTER$ dir/siz nx$:[sys$ldr]f11bxqp.exe

Directory XFEI_RESD$:[SYS$LDR]

F11BXQP.EXE;1              1786

Total of 1 file, 1786 blocks.
BAXTER$ 


Here is RMS which is almost 100% MACRO-32.

BAXTER$ dir/siz na$:[sys$ldr]rms.exe

Directory XFEK_RESD$:[SYS$LDR]

RMS.EXE;1                  1867

Total of 1 file, 1867 blocks.
BAXTER$ dir/siz ni$:[sys$ldr]rms.exe

Directory XFEJ_RESD$:[SYS$LDR]

RMS.EXE;1                  4855

Total of 1 file, 4855 blocks.
BAXTER$ dir/siz nx$:[sys$ldr]rms.exe

Directory XFEI_RESD$:[SYS$LDR]

RMS.EXE;1                  3883

Total of 1 file, 3883 blocks.
BAXTER$