[Bug middle-end/38474] [Meta] slow compilation at -O0 (callgraph optimization, inline heuristics, expand )

[jv244 at cam dot ac dot uk]

------- Comment #43 from jv244 at cam dot ac dot uk  2009-12-03 17:47 -------
(In reply to comment #42)
> Subject: Bug 38474
> 
> Author: matz
> Date: Thu Dec  3 13:36:32 2009
> New Revision: 154945

looks like the initial testcase now runs with 1.3Gb, and with the following
timings (so mem/time both better by a factor of two):
expand                : 386.46 (89%) usr   0.81 (48%) sys 387.21 (89%) wall 
309554 kB (56%) ggc
 integrated RA         :  17.97 ( 4%) usr   0.26 (15%) sys  18.28 ( 4%) wall   
8696 kB ( 2%) ggc
 reload                :   7.78 ( 2%) usr   0.25 (15%) sys   8.07 ( 2%) wall 
123546 kB (22%) ggc
 thread pro- & epilogue:   0.74 ( 0%) usr   0.00 ( 0%) sys   0.76 ( 0%) wall   
 239 kB ( 0%) ggc
 final                 :   2.84 ( 1%) usr   0.12 ( 7%) sys   2.95 ( 1%) wall   
  20 kB ( 0%) ggc
 TOTAL                 : 434.29             1.70           436.00            
553866 kB


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38474