[Scilab-users] ?==?utf-8?q? Scilab 6.1 too slow to list large vectors

Federico Miyara fmiyara at fceia.unr.edu.ar
Mon Mar 30 23:22:45 CEST 2020


Antoine,

Thank you for testing. I have filed bug 16397:

https://bugzilla.scilab.org/show_bug.cgi?id=16397

Regards,

Federico Miyara


On 30/03/2020 09:05, Antoine Monmayrant wrote:
> Hello Frederico,
>
> I can confirm this (6.0.2 vs 6.1) on linux Ubuntu 18.04 64bits:
>
>   6.0.2 -> ~1s
>   6.1.0 -> ~50s
>
> Could you fill a bug report?
>
> Antoine
>   
>   
> Le Lundi, Mars 30, 2020 11:56 CEST, Federico Miyara <fmiyara at fceia.unr.edu.ar> a écrit:
>   
>> Dear All,
>>
>> I have observed that Scilab 6.1 seems to have a regression respect to
>> 6.0.2. Sometimes one forgets to put semicolon after the coputation of a
>> vector with tens of thousands components. Scilab 6.0.2 listed all the
>> components very fast. That was nice because one hadn't to cancel the
>> computation, it took about 1 s. With 6.1 it takes much longer. For instance
>>
>> Fs  =  44100
>> T  =  2.5
>> t  =  [0:T*Fs]/Fs;
>> ximp  =  exp(-t/0.3).*rand(t,"normal")  +  0.004*rand(t,"normal");
>>
>> tic
>> ximp  =  ximp(:)
>> toc
>>
>> This takes 1.36 s in 6.0.2
>>
>> The same code in 6.1 takes 182 s
>>
>> Any idea why?
>>
>> I know I can cancel at any moment the script execution, but if there
>> were a process that took a lot of time one wouldn't be willing to stop it...
>>
>> Regards,
>>
>> Federico Miyara
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