[openib-general] Re: OpenSM size

[Michael S. Tsirkin]

Hi!

1. Did you strip it?
# ls -l /usr/local/bin/opensm
-rwxr-xr-x  1 root root 2124734 Nov 15 10:07 /usr/local/bin/opensm
# strip /usr/local/bin/opensm
# ls -l /usr/local/bin/opensm
-rwxr-xr-x  1 root root 333024 Nov 15 10:22 /usr/local/bin/opensm

2. Compile with -Os: edit Makefile in
 /usr/src/openib/trunk/src/userspace/management/osm/opensm,
 replace -O2 with -Os.

# ls -l /usr/local/bin/opensm
-rwxr-xr-x  1 root root 2119341 Nov 15 10:23 /usr/local/bin/opensm
# ls -l /usr/local/bin/opensm
-rwxr-xr-x  1 root root 316608 Nov 15 10:24 /usr/local/bin/opensm

3. Do you bzip with -9?
# bzip2 -9 /usr/local/bin/opensm
# ls -l /usr/local/bin/opensm.bz2
-rwxr-xr-x  1 root root 115566 Nov 15 10:24 /usr/local/bin/opensm.bz2

Thats on x86_64.

4. Go 32 bit (needs 32 bit libraries, so its a bit trickier).
you need to add -m32 to cflags and ldflags to all management libraries.
But this is sure to cut the size down even more.

Hope this helps,
MST

Quoting yipee <yipeeyipeeyipeeyipee at yahoo.com>:
> Subject: Re: OpenSM size
> 
> Hal Rosenstock <halr <at> voltaire.com> writes:
> 
> > How small does it need to be ? What processor architecture ?
> 
> The processor I'm using is a x86_64, but I guess I can compile OpenSM
> for x86 
> (32bits).
> The binary size I'm seeing is about 2MB. After bzip'ing it shrinks to
> 670KB. If 
> I could reduce it to 200KB or smaller it would be much better, but even
> taking 
> off 20% would be good.
> 
> Thanks
> 
> 
> 
> 
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-- 
MST