Re: Building on the z50

[<jscottkasten%yahoo.com@localhost>]

Most of the NetBSD release kernels have softdep added to the build config, so 
it is only necessary to turn it on in the run time.  Just add the magic to the 
/etc/fstab like so:

http://www.netbsd.org/docs/misc/#softdeps

While you're in there, you might also check to make sure you have the noatime 
and nodevmtime options enabled as well.  This combination of things will ensure 
the minimum number of writes to the storage for general use.

You mentioned compiling stuff.  You could also try adding "-pipe" to CFLAGS 
when you run configure for your package.  This will reduce the compiler's 
reliance on temporary files at the expense of needing more system memory to 
run.  This may be less painful, and more efficient than making /tmp a memory 
based file system.

All this stuff together will probably give you that 15 - 20% advantage you're 
looking for.

-S-

--- On Wed, 10/7/09, Scott Lawrence <yorgle%gmail.com@localhost> wrote:

> From: Scott Lawrence <yorgle%gmail.com@localhost>
> Subject: Re: Building on the z50
> To: jscottkasten%yahoo.com@localhost
> Cc: "hpcmips NetBSD mailing list" <port-hpcmips%netbsd.org@localhost>
> Date: Wednesday, October 7, 2009, 11:46 AM
> How do I do this?  I'm not
> building my own kernel or anything; just
> using downloaded stuff from the main distribution
> 
> -s
> 
> On Wed, Oct 7, 2009 at 2:45 PM,  <jscottkasten%yahoo.com@localhost>
> wrote:
> > Have you tried enabling softdep?  That is probably
> the one single largest improvement you can make.  It may
> ultimately make you flash live a bit longer too.
> >
> > -S-
> >
> > --- On Wed, 10/7/09, Scott Lawrence <yorgle%gmail.com@localhost>
> wrote:
> >
> >> From: Scott Lawrence <yorgle%gmail.com@localhost>
> >> Subject: Building on the z50
> >> To: "hpcmips NetBSD mailing list" <port-hpcmips%netbsd.org@localhost>
> >> Date: Wednesday, October 7, 2009, 7:17 AM
> >> Hey all.
> >>
> >> I use my z50 as a portable development machine. 
> It
> >> works great.
> >> Awesome keyboard, excellent battery life, etc.
> >>
> >> One thing though; the drive access times to the CF
> card are
> >> painful,
> >> due to PIO access times.
> >>
> >> Does anyone have any configuration suggestions
> wrt
> >> this?  I was
> >> thinking that a 5 or 10 meg ramdisk would be
> great; have
> >> gcc put its
> >> build files out there, or possibly have the source
> files
> >> copied out
> >> there, then just refreshed back to the CF every so
> often.
> >> (whatever)
> >>
> >> Anyone have suggestions on how to get a
> ramdisk/partition
> >> to be configured?
> >>
> >> I tried to do it a few months back, with no good
> results.
> >>
> >> -s
> >>
> >> --
> >> Scott Lawrence
> >> yorgle%gmail.com@localhost
> >>
> >
> 
> 
> 
> -- 
> Scott Lawrence
> yorgle%gmail.com@localhost
>