On Wednesday, 9 March 2016 at 13:26:45 UTC, Andrei Alexandrescu
wrote:
On 03/08/2016 09:14 AM, ixid wrote:
Since I posted this thread I've learned std.algorithm.sum is 4
times
slower than a naive loop sum. Even if this is for reasons of
accuracy
this is exactly what I am talking about- this is a hidden
iceberg of
terrible performance that will reflect poorly on D. That's so
slow the
function needs a health warning.
Whoa. What's happening there? Do we have anyone on it? -- Andrei
They just don't do the same thing, sum() uses pairwise summation
which is safer as I understand it. Corresponding issue:
https://issues.dlang.org/show_bug.cgi?id=15722
