bash-dash

Elapsed real time in seconds needed to build ports with 
bash resp. dash symlinked to /bin/sh


                 total build time 
port                bash     dash      a)      b)    c)
-------------------------------------------------------
core/gawk          30.00    27.80     1.08    2064   74
core/gcc         4127.34  4006.20     1.03   84405   21
core/util-linux    76.56    67.60     1.13    5954   88
core/libmpfr       59.19    53.90     1.10    4025   75
core/openssl      122.47   122.52     1.00    1496   12
core/libpcre       34.61    33.76     1.03    1100   33
xorg/mesa3d      1150.69   852.84     1.35  362548  425

a) ratio bash/dash build time
b) number of new sh starts for the build measured with
   kernel's BSD accounting and GNU acct
c) number of new sh starts each second


Test machine was a Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz
with 8G RAM, compilation takes place in a tmpfs without
parallel make jobs.