Re: Anyone using MySQL 4.x on Apple's G5?

[Jeremy Zawodny]

On Wed, Oct 15, 2003 at 06:35:03PM -0400, Gabriel Ricard wrote:
> 
> On Wednesday, October 15, 2003, at 03:10  PM, Jeremy Zawodny wrote:
> 
> > I'd be interested to know if you can get a test running that uses
> > either a key_buffer or an innodb_buffer_pool in the 3.5GB range.
> 
> Interestingly enough, I can't seem to get MySQL to use more than 2GB of 
> RAM.
> 
> I get errors like this:
> 
> *** malloc: vm_allocate(size=2042925056) failed with 3
> *** malloc[489]: error: Can't allocate region

Hmm.  That's not promising.

> I wrote a small C program to test malloc() and see just how much I 
> could allocate, and I was able to get up to 3.5GB before being cut off 
> by the OS, which leads me to believe that I should be able to use that 
> much RAM for MySQL.

Yes.

I wonder why you got cut off at 3.5GB.  I'd have expected OS X on
64bit hardware not to have the weird limitations that, say, FreeBSD or
Linux with kernel reserved memory.

Something is wonky here...

Thanks for the info.  I'd love to hear if you're successful getting
MySQL to use more than 2GB.  I'm gonna hunt around a bit more to see
what others may know.

Thanks,

Jeremy
-- 
Jeremy D. Zawodny     |  Perl, Web, MySQL, Linux Magazine, Yahoo!
<Jeremy@stripped>  |  http://jeremy.zawodny.com/

MySQL 4.0.15-Yahoo-SMP: up 32 days, processed 1,219,926,177 queries (431/sec. avg)