[cfe-dev] [LLVMdev]  2 experimental projects
    Mike Stump 
    mrs at apple.com
       
    Wed Mar 19 18:42:57 PDT 2008
    
    
  
On Mar 19, 2008, at 1:38 PM, Gabor Greif wrote:
> My measurements on a 4-processor machine have
> shown test time reduction of 60% when the tests were
> invoked as "make test -j8".
My testing shows that -j4 is the sweet spot on my MacPro with 4 CPUs  
for cfe.
   17.334 --> 7.681
Nice, thanks.  Anyway, := evaluates the variable once, = merely  
substitutes it, causing it to be run multiple times.  With the below  
patch we go from 4 evaluations to 2.
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