Huge slowdown since 6.0

[Daniel Jacobowitz]

On Fri, Feb 20, 2004 at 12:41:04PM -0500, Elena Zannoni wrote:
> The thing that I am curious about is to see how early into a regular
> debug session we build the symtabs. I.e. I am afraid that any
> reference to any symbol from the command line makes the whole lot
> expand anyway. The answer to this may help answer the question whether
> we really need a two tier symbol table system, or if there is another
> way of solving the same problem. While cleaning up the obstack stuff,
> it became obvious that the intent was for the psymtabs to go away once
> expanded into full symtabs, but this was never implemented.

>From the last time I looked at this issue (a while ago, now): when a
symbol is referenced on the command line we generally build symtabs for
the symbol containing it.  We do not build all symtabs for its object;
we used to do that for some C++ operations (overload checking maybe?)
and it was extremely noticeable.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer