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Re: GCC 4.1: Buildable on GHz machines only?
On 2005-04-28, at 16:26, Lars Segerlund wrote:
I have never done any 'memory profiling' but I think it might be time
to give it a
shot, does anybody have any hints on how to go about something like
The main performance problem for GCC as I see it is structural. GCC is
the concept of high polymorphism of data structures in plain C. Well
not even plain C any longer... GTY().
Using C++ with simple inheritance could help *a lot* here. (Duck...)
There is too much of pointer indirection in the data structures too.
Look throughout the code and wonder how very few iterations go around
simple, fast, spare on register set, allowing cache prefetch, to work C
GCC is using linked lists to test the "efficiency" of TLB and other
of the CPU.