On Thu, 28 Apr 2011 15:27:16 -0400, Timon Gehr <timon.g...@gmx.ch> wrote:
Steven Schveighoffer wrote:
Yes, the allocation and free performance could be improved, but it
doesn't
change the fact that delete manually is not a huge performance gain, if
at
all.
My benchmark shows that in the current implementation manual deletion of
GC memory
is at least 15 times faster than leaving it up to the GC. (better cache
behavior
of the data unmeasured)
I would need to see what your benchmark is before I'd say it was
conclusive.
If you want to gain performance, don't use the GC at all (for
example scope classes), or use a custom allocator that is tailored to
your
needs.
Agreed. But writing a very well performing custom allocator that scales
well with
the application is a not-exactly-trivial task.
True. Generally, GC has good enough performance for most applications.
But again, all of this is somewhat moot since delete isn't exactly going
away, it's just going away as a keyword.
-Steve
