Subject: Re: Compiler timings on varous MVII NetBSDs etc.
To: NetBSD Bob <nbsdbob@weedcon1.cropsci.ncsu.edu>
From: David Brownlee <abs@netbsd.org>
List: port-vax
Date: 01/25/2001 19:59:57
On Thu, 25 Jan 2001, NetBSD Bob wrote:
> MVII OS KERNEL COMPILE TIMES KERNEL SIZE
> -------------------------------------------------
> 4.3BSD 0.75 hr (7mb ram) 273K
> NetBSD-1.2 3 hr (13mb ram) 315K
> NetBSD-1.3 ? " 360k
> NetBSD-1.4.3 5 hr " 470K
> NetBSD-1.5 25 hr " 580K
> -------------------------------------------------
>
> These are all compiled on a stock stripped MVII kernel, using
> a stock stripped MVII config, basically all were identical to
> the 4.3BSD config.
The default gcc options changes from -O to -O2 on vax at some
point around 1.4. You might want to try all NetBSD compiles
with -O. (-O2 on earlier versions is likely to generate
incorrect code)
David/absolute -- www.netbsd.org: No hype required --