Get list of class with most instances and size

ScanBackup gives a report of all the objects in the on-disk repository while an out-of-memory error gives a report of all the objects in the Gem (an individual VM session that has a subset of the repository in RAM). 

James

On Jul 1, 2015, at 6:19 PM, Mariano Martinez Peck via Glass <[hidden email]> wrote:

Dale, 

Is this https://programminggems.wordpress.com/2009/05/14/scanbackup/  still the last available code to get that? I think it is not, because sometimes when I get a gem crash with an out of memory I get that table written into the log, therefore, I should have such code somewhere in my gemstone. But I do not have ScanBackup class.

So...yes, I want to print a little table with the classes with most instances, and hopefully the size and occupied memory (SpaceTally in Pharo).

Best, 

--

Mariano
http://marianopeck.wordpress.com

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Hi Mariano,

The following piece of code gives you the list of classes loaded into gem memory with their number of instances (and sorted on most instances first). 

Don’t search for a meaning, the ' _vmInstanceCounts: 2 ‘ is something I got from Dale :)

instanceCounts := (System _vmInstanceCounts: 2) sorted:[:a :b | b value first <= a value first].

cheers

Johan

On 02 Jul 2015, at 06:59, Mariano Martinez Peck via Glass <[hidden email]> wrote:

On Thu, Jul 2, 2015 at 1:20 AM, James Foster <[hidden email]> wrote:

ScanBackup gives a report of all the objects in the on-disk repository while an out-of-memory error gives a report of all the objects in the Gem (an individual VM session that has a subset of the repository in RAM). 

Ohhh good difference!

So....OK, I will wait to see if that URL has latest ScanBackup.

And do you know where I can get the one of the gem? 

 

James

On Jul 1, 2015, at 6:19 PM, Mariano Martinez Peck via Glass <[hidden email]> wrote:

Dale, 

Is this https://programminggems.wordpress.com/2009/05/14/scanbackup/  still the last available code to get that? I think it is not, because sometimes when I get a gem crash with an out of memory I get that table written into the log, therefore, I should have such code somewhere in my gemstone. But I do not have ScanBackup class.

So...yes, I want to print a little table with the classes with most instances, and hopefully the size and occupied memory (SpaceTally in Pharo).

Best, 

-- 

Mariano
http://marianopeck.wordpress.com

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Glass mailing list
[hidden email]
http://lists.gemtalksystems.com/mailman/listinfo/glass

-- 

Mariano
http://marianopeck.wordpress.com

_______________________________________________
Glass mailing list
[hidden email]
http://lists.gemtalksystems.com/mailman/listinfo/glass

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