On Tue, 03 Aug 2010 20:21:49 -0400, Adam Ruppe <destructiona...@gmail.com>
wrote:
On 8/3/10, Walter Bright <newshou...@digitalmars.com> wrote:
Andrei put together a benchmark that shows that D compiles 4 times
faster
than Go.
I've found D1 tends to be much faster than D2 as well. The dmd version
1 is so fast that I often think it doesn't even run!
D2's (relative) slowness I've tracked down to import std.stdio; - it
instantiates a bunch of templates just on import. We should be able to
fix this with a little work, and put D even further ahead of the
competition.
I also feel that templates inappropriately slow down compilation. For
dcollections, when compiling without unit tests enabled, compilation is
less than a second. With unit tests enabled, which instantiate about 8
instances of each object (of which there are 8), compilation takes over a
minute. I still don't know why, but it seems to be evenly spread
throughout compilation (compiling with -v shows it progressing through
many functions).
Then, just ditch that sloooow GNU ld on linux.
I would be surprised if ld was a culprit in compilation slowdown.
-Steve
