spreading partitions over multiple drives

[Bob Willcox]

On Fri, Sep 10, 2004 at 06:00:51PM +0200, Geert Hendrickx wrote:
> On Fri, Sep 10, 2004 at 03:21:46PM +0200, Willem Jan Withagen wrote:
> > I would expect a bigger system to cache just about all file access 
> > during 'make buildworld'.
> > Even when building things with -j 64 I can not get my dual-opteron 1Gb 
> > system  get without free pages.
> > And as such most files will only be read once, and object output will be 
> > "slowly" synced on the disks.
> > Disk I/O rearly becomes the bottleneck, most of the time I'm missing raw 
> > CPU cycles.
> > And I have everything on 1 large 200Gb disk.
> 
> Ok so adding more RAM may be more useful than an extra harddisk?  Maybe
> I could even put /tmp or /usr/obj on a RAM-disk?  A fully built /usr/obj
> is about 350Mb.  

Hmm, how to you follow the prescribed process of rebooting between the
buildworld/installkernel and installworld if you put /usr/obj on a RAM
disk? Following the reboot you'll have no objects to install.

Bob

> 
> GH
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-- 
Bob Willcox             Acquaintance, n.:
bob at immure.com            A person whom we know well enough to borrow from,
Austin, TX                but not well enough to lend to.
                             -- Ambrose Bierce, "The Devil's Dictionary"