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[Bug tree-optimization/26854] [4.3/4.4/4.5 Regression] Inordinate compile times on large routines



------- Comment #114 from lucier at math dot purdue dot edu  2010-03-27 04:59 -------
Created an attachment (id=20221)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20221&action=view)
time/mem report compiling compiler.i

This is the time and detailed memory report for compiling compiler.i with
today's gcc and optimization level -O3 -fschedule-insns.  Again, the detailed
configuration information and command line are contained at the beginning of
the file.

Except for taking > 20GB of RAM, this doesn't look too bad, either.  The passes
taking the most time are:

 parser                : 222.18 (21%) usr   2.95 (11%) sys 225.37 (21%) wall 
103148 kB (11%) ggc
 tree CFG cleanup      :  63.67 ( 6%) usr   0.00 ( 0%) sys  63.60 ( 6%) wall   
2467 kB ( 0%) ggc
 scheduling            : 394.04 (37%) usr   0.00 ( 0%) sys 394.04 (36%) wall   
5824 kB ( 1%) ggc
 TOTAL                 :1056.69            26.47          1083.41            
916872 kB


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26854


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