On 28 Feb 2012, at 21:30, Norbert Hartl wrote:

> Am 28.02.2012 um 20:35 schrieb Sven Van Caekenberghe:
> 
>> Norbert,
>> 
>> On 28 Feb 2012, at 17:32, Norbert Hartl wrote:
>> 
>>> I experience image corruption with big images.
>> 
>> I am assuming you are using a normal image on a 32-bit Cog VM on Linux ?
>> 
> yes
> 
>> I am very interested in the practical limits on image size (not necessarily 
>> saving it).
>> 
> Ah, I was just talking. The latest image grew to 280MB on disk. I just 
> experienced a corrupted image after a few days. I did a more or less clean 
> procedure by stopping all threads while saving. But sometime the image seems 
> to be not fully written on disk making it unloadable on next start. The only 
> limit that I tested is a maximum of threads of 1100 or 1400, can't remember 
> right now. The image is stuck then. But that's no problem to me.
> 
>> What vm switches did you apply ?
>> 
> -encoding latin1 -nodisplay -nosound -mmap 512m 
> 
>> I played a bit with some tests, and I could allocate about 1Gb in a 1.5GB 
>> heap VM.
>> 
> I had only the save experience but there could be a huge amount of reasons 
> why it failed. My feeling is that my images are getting worse the longer they 
> run. But I have nothing real to base this assumption on. 
> 
>> What is your experience ?
> 
> I'm sorry that's all. I just started to do deployments with pharo lately. I 
> was doing everything in gemstone until 2 month ago.
> 
> Norbert

Thx for the reply.

Some time ago, I tried this: 
http://forum.world.st/Big-Image-Tests-td4188045.html#a4188548

Sven

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