Re: [Sheflug] i386 SMP in NetBSD -current

["Chris J" <xxxxx [at] xxxxxxxxxxxxxxxx>]

> for those interested NetBSD/i386 -current now has multiprocessor
> support.

Cool - I'll take a gander at the details later ... :)

> 
> IMHO 'bout time too, Linux has been doin' this for years on loads of
> platforms... FreeBSD has SMP too in i386 & sparc64
> 

FreeBSD's SMP support is a little bit poor though, however it should be a 
lot better once  5.0 is released. The problem with the current 
implementation is that SMP makes use of a giant kernel lock, rather than 
fine-grained locking that FreeBSD 5 is going to get (eventually), so 
performance over UP systems isn't as great as it good be (and may, for some 
applications, be worse).

For SMP stuff, it's probably better to use Linux until the next gen of code 
comes out. As for the NetBSD stuff, I need to read about the implementation 
before I know if it's going to be much use :)

Chris...

-- 
\ Chris Johnson           \ NP: 10 son of a preacher man
 \ cej [at] nightwolf.org.uk    ~-----,   
  \ http://cej.nightwolf.org.uk/  ~-----------------------------------, 
   \ Redclaw chat - http://redclaw.org.uk - telnet redclaw.org.uk 2000 \____


___________________________________________________________________

Sheffield Linux User's Group -
http://www.sheflug.co.uk/mailfaq.html

  GNU the choice of a complete generation.