Re: bugs to fix before 4.4.0 release

[Andreas Weber]

Am 03.01.2018 um 21:54 schrieb Rik:
> In addition to straightforward bugs, I'd like to see the performance not
> degrade too much between releases.  I know that this is a trivial test, but
> the performance of double-nested for loops shows that performance has been
> declining over major releases, and that the development branch is 2.6X
> slower than 4.2.1.
> 
> Sample Code:
> 
> a = 1; b = 1; t0=tic; for i=1:1000; for j=1:1000; a = a + b + 123.0; end;
> end; t1=toc(t0); t1
> 
> Results:
> 
> 3.8.2 : 0.84617
> 4.0.3 : 1.4062
> 4.2.1 : 1.43
> 4.4.0-dev : 3.77

My docker containers with debian jessie and gcc 4.9.2:

octave_3.6.4 : t1 =  0.93715
octave_3.8.2 : t1 =  1.0525
octave_4.0.3 : t1 =  1.3874
octave_4.2.1 : t1 =  1.4061