Re: More on compile performance of Linux kernels in mainline gcc

[Andi Kleen <ak at suse dot de>]

> Actually both these are common cases in the profiles I've seen -
> basically all our cache misses comes to these two places so even tought
> they are not that expensive they are.  I use -minline-all-stringops when
> profiling the GCC to see where the memset really comes to.

Ok, will do that next time. 

> 
> > 
> > Standard GLOBAL_POWER_EVENTS:
> > 95020    4.0626  cc1                      yyparse.unlikely_section
> > 438612    2.5638  cc1                      ht_lookup_with_hash
> > 298462    1.7446  libc.so.6                memset
> > 288277    1.6851  cc1                      _cpp_lex_direct
> > 265789    1.5536  cc1                      ggc_alloc_stat.unlikely_section
> 
> I have to look into it - ggc_alloc_stat is very definitly not unlikely
> function...  What enable-languages setting did you use?

c,c++ 

-Andi