Threading the compiler

[Michael Eager]

Geert Bosch wrote:

> Most of my compilations (on Linux, at least) use close
> to 100% of CPU. Adding more overhead for threading and
> communication/synchronization can only hurt.

On a single-processor system, adding overhead for multi-
threading does reduce performance.  On a multi-processor
system, the overhead is distributed across all processors, but
results in a net gain.  For parallelizations pprograms, a
4-way processor might achieve 3X performance improvement.

-- 
Michael Eager	 eager@eagercon.com
1960 Park Blvd., Palo Alto, CA 94306  650-325-8077