On Friday, 23 January 2015 at 16:59:41 UTC, Wyatt wrote:
On Thursday, 22 January 2015 at 19:37:11 UTC, weaselcat wrote:
Might be of use to someone, but I was looking for ways to
speed up dmd's albeit already fast compilation times.
Just by dropping in jemalloc in place of glibc's malloc via
LD_PRELOAD on my linux machine I saw a 10-15% drop in
compilation times across the board. Not sure if this is common
knowledge or not.
Might be interesting to try some other implementations, too?
TCMalloc[0] and nedmalloc[1] at least have permissive licenses.
(Hoard[2] and Lockless[3] also seem interesting, but are GPL
or worse.)
-Wyatt
[0] Part of gperf-tools https://code.google.com/p/gperftools/
[1]
http://www.nedprod.com/programs/portable/nedmalloc/index.html
[2] http://www.hoard.org/
[3] http://locklessinc.com/downloads/
Hi,
I actually did try tcmalloc and I can't remember if it performed
better than malloc or not, but it performed overall worse than
jemalloc. I'm assuming because it's(as the name impllies),
optimized for heavily threaded scenarios which DMD is not.
I didn't try the others because they're not readily available in
my package manager.
