[fpc-devel] FPC/Lazarus Rebuild performance

[Mattias Gaertner]

On Sun, 12 Sep 2010 10:25:22 +0200 (CEST)
marcov at stack.nl (Marco van de Voort) wrote:

> In our previous episode, Mattias Gaertner said:
> > > Agreed. My opinion is that before we start to implement difficult and 
> > > error-prone multi-threading into FPC we should find out why the hell Delphi 7 
> > > can compile so much faster and produces even better code?
> > 
> > Seeing that dcc is only 800K: 
> > maybe it fits into the cpu cache.
> 
> I assume dcc.exe uses more data than code :-)

CPU caches do not work FIFO.
If FPC does not fit into the CPU cache, then the CPU has to constantly
load code mem additionally to the data.

Mattias