Re: Sysinst default root login shell

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

On Fri, Apr 13, 2012 at 12:21:59AM +0200, Johnny Billquist wrote:
> On 2012-04-12 23:58, Matthew Mondor wrote:
> >On Thu, 12 Apr 2012 23:04:33 +0200
> >Johnny Billquist<bqt%softjar.se@localhost>  wrote:
> >
> >>Funny you should say that, while a CVS checkout of all of the NetBSD
> >>source tree have grown in time from about 20 minutes to about 5 hours on
> >>a VAX-8650 as we move from NetBSD 2 to NetBSD 5. Did we really improve
> >>performance, or did we only just get faster computers, while the code
> >>itself got slower?
> >
> >Faster hardware, but also software that adapts better to that hardware:
> >
> >Most of the performance improvements I was refering to happened
> >between netbsd-4 and netbsd-5, when Andrew Doran worked full-time on
> >performance and SMP:
> >http://blog.netbsd.org/tnf/entry/netbsd_5_0_an_overview
> >
> >This included changing a number of operations that were previously
> >executing in O(n) time to now execute in O(1) time, making MP-safe some
> >critical sections, not using the big lock anymore for MP-safe sections,
> >scheduler and interrupt processing changes, a new 1:1 POSIX threading
> >system that can more easy scale with SMP, etc.
> 
> And yet, things are slower now... The only reason it appears faster
> is that the hardware is so much faster. But I'm sure some
> improvements have been done (I'm sure of it, it would be horrific
> otherwise), it's just that we've lost even more performance at other
> corners. Net result is a loss.

Posts like this completely disqualify your opinion on more technical
issues. Please upgrade to RetroBSD. It will allow the discussion about
this to turn to someelse than code historic reasoning.

Joerg