Commits on Oct 21, 2015

1. node: improve GetActiveRequests performance …

   v8 is faster at setting object properties in JS than C++. Even when it
   requires calling into JS from native code. Make
   process._getActiveRequests() faster by doing this when populating the
   array containing request objects.
   
   Simple benchmark:
   
       for (let i = 0; i < 22; i++)
         fs.open(__filename, 'r', function() { });
       let t = process.hrtime();
       for (let i = 0; i < 1e6; i++)
         process._getActiveRequests();
       t = process.hrtime(t);
       console.log((t[0] * 1e9 + t[1]) / 1e6);
   
   Results between the two:
   
       Previous:  4406 ns/op
       Patched:    690 ns/op     5.4x faster

   

   trevnorris committed Oct 21, 2015
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