Update PERFORMANCE section with numbers building libX11 and all

its dependencies in pkgfs vs pkgsrc. You know, pkgsrc is 40% slower.

--HG--
extra : convert_revision : 6fe7cc35419d7d936cc4a996c481a7b5da57cf44

README

@@ -90,17 +90,18 @@ That's all for now folks. I hope you find it useful, as I do.
 pkgfs is really fast, trust me. That was one of my reasons to make my own
 pkgsrc/ports alike system.
 
-If you want benchmarks, here is one; building libX11 (all deps installed)
+If you want benchmarks, here is one: building libX11 and all its dependencies
-with pkgfs:
+required (not included building xstow) with pkgfs:
 
-	217.00s real   103.23s user    29.96s system
+	251.20s real   121.36s user    53.94s system
 
-versus pkgsrc (make install clean):
+versus pkgsrc (make install clean clean-depends and digest previously
+installed):
 
-	229.22s real   112.75s user    54.79s system
+	450.41s real   167.58s user    97.31s system
 
-The difference in this package might not be too big as I might think... but
+That's more or less 40% faster! that's the price you pay for having those
-anyway, 12 seconds faster is not that bad.
+wrappers in pkgsrc that aren't very useful on NetBSD :-)
 
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