Hi Eliot,

I tried with -maxoldspace 60M (after I tied 128M and 64M).

I learned that I have to put some parameters into "" but have to add 
-maxoldspace without "" otherwise the VM complains it doesn't understand 
that parameter. Maybe there is still something wrong because now "Abut 
this System" shows two VM parameters, maxoldspace and 64M.

Also the high CPU usage in the Inspector on all inst vars does not go away.

Anyway the main problem is me running the A+ were I could have used my 
B+ with twice as much RAM but a bit less power consumption. All was fine 
until I switched from 640x480 camera resolution to 1296x972. But the new 
VM allowed to keep the framerate at a slightly higher CPU load. We had a 
very windy day and night so the motion detection was very busy.

But it runs stable for over 24 hours now under heaviest load ever so I'm 
really happy with it.

If I have suggestions for the VM I'll go to VM dev.

Thanks,

Herbert

Am 24.07.2015 um 22:46 schrieb Eliot Miranda:
> Hi Herbert,
>
>     first., apologies fror being unresponsive.  I've had things to do 
> for the last few days.
>
> On Thu, Jul 23, 2015 at 11:17 AM, Herbert König <herbertkoenig at gmx.net 
> <mailto:herbertkoenig at gmx.net>> wrote:
>
>     Hey, great!
>
>     downloaded it on the Pi A+ installed my trusty 24/7 cat
>     surveillance app and it worked.
>     CPU usage went down from 50 to 40%.  It exercises BitBlt,
>     Collections, file I/O incl. GPIO, OSProcess and CommandShell
>     Memory went up from 52M to 75M which is critical as I use the
>     PiNoir Camera.
>
>
> So there's two things going on here.  One is that the object format is 
> indeed less compact tan the previous one and Spur image files are 
> about 15% larger, so a 57Mb image file should result in something 
> around 65Mb.  Another is that right now I've chosen to have the memory 
> manager allocate a chunk of free space at startup that defaults to the 
> growHeadroom, which defaults to 16Mb.  You can see what the free old 
> space is via vm parameter 54, e.g.
>
>         Smalltalk vmParameterAt: 54 22689208
>
> You can change this by the command line switch -maxoldspace.  Really I 
> think there needs to be a way of a) specifying a free headroom on the 
> command line, and b) setting a grow size in the image header, rather 
> than from Smalltalk code.
>
>
> Basically Spur is very green and we need to evolve its facilities for 
>  management of memory management.  So please feel free to make 
> suggestions and requests for functionality here, but especially on 
> vm-dev.  We could do with careful discussions here as I don't want to 
> hack, but I'm not pretending to have the right answers.
>
>
>     I'll watch what comes out of Tim's (Rowledge) recent post.
>
>     And I'll watch if it runs as stable as 4.5.
>
>     Thanks,
>
>     Herbert
>
>
>
>     Am 23.07.2015 um 17:55 schrieb Chris Muller:
>
>         I managed to successfully incorporate the ARM platform into
>         the 5.0
>         All-In-One -- so Squeak 5 will now start up with one-click on FOUR
>         platforms, OOTB..!!
>
>
>
>
>
>
> -- 
> _,,,^..^,,,_
> best, Eliot
>
>

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