K 10
svn:author
V 6
jilles
K 8
svn:date
V 27
2017-05-18T22:10:04.688055Z
K 7
svn:log
V 389
sh: Keep output buffer across builtins.

Allocating and deallocating repeatedly the 1024-byte buffer for stdout from
builtins costs CPU time for little or no benefit.

A simple loop containing builtins that write to a file descriptor, such as
  i=0; while [ "$i" -lt 1000000 ]; do printf .; i=$((i+1)); done >/dev/null
is over 10% faster in a simple benchmark on an amd64 virtual machine.

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