[plug] Intel Processor naming conventions

[Craig Ringer]

On Tue, 2004-03-16 at 06:50, William Kenworthy wrote:

> avoid -O3, ESPECIALLY on a celeron - if you have very small memory size
> (<=64M), try -Os (smaller binary footprint, at the expense of raw
> performance, its a tradeoff - a word you seem to use a lot when speaking
> of celeries!)

AFAIK, -Os can be helpful even on non-crippled CPUs. In particular, when
app launch time is the main issue, or when it allows an entire critical
segment of code to fit in the CPU cache when it otherwise would not.

In idle fiddling ( I normally don't care enough to recompile things just
for a small % gain in speed, preferring a CPU/RAM upgrade instead ) I've
found -Os to make considerable differences to the performance of a few
things, especially launch times.

> My celeron 800 laptop was not very good at doing any serious work - too
> little ram and too little grunt.

Yeah, a Celeron combined with the usual trade-offs made in laptop
chipsets can't be at all fast. Esp. with a laptop HDD.

Craig Ringer