Memory related crash??

[David V Glasgow]

In the great tradition of answering your own question.

I just tried the identical process in LC7

Loading the text file takes memory up to a similar size as in LC 8.1.10, but the script runs successfully and even repeats for multiple collections of keywords without memory pressure rising at all, and LC memory never rises above 300MB

Everything seems brisker, too.

Best wishes,

David G

> On 15 Aug 2018, at 5:46 pm, David V Glasgow <DVGlasgow at gmail.com> wrote:
> 
> but is it me?
> 
> Mac OS 10.12.6, LC 8.1.10
> 
> I have a 4 card stack which when loaded takes the LC memory to 66MB
> I then load a 25MB plain text file into a scrolling field  (which takes maybe 20 seconds and shows LC as 'not responding’ in Activity Monitor).  This take memory to 282MB
> I then perform the following script  Where the field “coerckey” is a list of 21 keywords I need to find in the imported text.
> 
>    put empty into field "foundlines"
>    put empty into ttemp
>    put empty into field "totaliser"
>    put 1 into ttcount
>    repeat for each line i in field "coerckey"
>       put i into field "currentkey"
>       put field "import" into ttemp
>       filter lines of ttemp with regex pattern i
>       put ttemp & return before field "foundlines" 
>     put "•••  " & i & "   •••" & return before field "foundlines"
>     filter field "foundlines" without empty
>     put the number of lines of field "foundlines" -ttcount  into field "coerfreq"
>     put ttcount + 1 into ttcount
>    end repeat
> 
> It works fine, and at a reasonable lick, but the memory balloons to 2.46 GB, and is never released, even after the handler is done.  I have several other similar scripts, and unsurprisingly, after two or three, LC chokes.
> 
> I read somewhere that there was a memory leak in a previous version related to the filter command, although I thought that was something to do with Unicode.
> 
> So is what I see down to me, or LC?
> 
> Best wishes,
> 
> David Glasgow
> 
>