Re: bugs to fix before 4.4.0 release

[ederag]

On Thursday, January 04, 2018 00:09:31 Michael D Godfrey wrote:
> Just for information, I get a very similar ratio for dev/4.2.1. This
> is a bigger jump than in the past. My system is an Intel NUC7i5BNH,
> i.e. I7 CPU.

> On 01/03/2018 11:37 PM, Rik wrote:
> > 3.8.2 : 0.84617
> > 4.0.3 : 1.4062
> > 4.2.1 : 1.43
> > 4.4.0-dev : 3.77

same here:
4.2.1: 1.46
dev (24498:1c96b44feb7a): 3.27

build procedure described there
http://wiki.octave.org/Octave_and_separate_toolchain
except now gcc-6.4.0.
cpu: i7-5960X address@hidden

Maybe a hint: a += b + 123.0 is much faster:
a = 1; b = 1; t0=tic; for i=1:1000; for j=1:1000; a += b + 123.0; end; end; 
t1=toc(t0); t1
4.2.1: 0.98
dev (24498:1c96b44feb7a): 2.35

and
On Wednesday, January 03, 2018 16:08:27 Daniel J Sebald wrote:
> octave:1> for lim_p = 0:6
>  >   lim1 = 10^lim_p;
>  >   lim2 = 10^(6-lim_p);
>  >   a = 1; b = 1; t0=tic; for i=1:lim1; for j=1:lim2; a + b + 123.0; end; 
> end; t1=toc(t0); t1
>  > end
same here:
4.2.1:
t1 =  1.55
t1 =  1.44
t1 =  1.45
t1 =  1.45
t1 =  1.47
t1 =  1.66
t1 =  3.52

dev (24498:1c96b44feb7a):
t1 =  2.72
t1 =  2.61
t1 =  2.61
t1 =  2.62
t1 =  2.64
t1 =  2.87
t1 =  5.13

Ederag