[Pharo-project] Howto measure memory footprints of functions/objects/libraries in Pharo?

Alexandre Bergel alexandre at bergel.eu
Tue Nov 9 12:42:17 CET 2010


Hi Guido,

We wrote a profiler to keep track of memory consumption. 

http://bergel.eu/download/papers/Berg10g-MemoryProfiling.pdf

It will be presented at Smalltalks next week.

Cheers,
Alexandre

On 8 Nov 2010, at 23:47, Guido Stepken wrote:

> E.g.: Three different solutions for a Euler problem:
> 
> (1 to: 999) inject: 0 into: [:sum :i | (i \\ 3 = 0) | (i \\ 5 = 0)
> 		ifTrue: [sum + i]
> 		ifFalse: [sum]]
> 
> 
> (1 to: 999) detectSum: [:i | (i \\ 3 = 0) | (i \\ 5 = 0) ifTrue: [i] ifFalse: [0]]
> 
> (1 to: 999) detectSum: [:i | i * (#(0 0 1 0 1 1 0 0 1 1 0 1 0 0 1) atWrap: i)]
> 
> How do i measure the exact memory footprint of each solution?
> 
> Pharo claims having reduced memory footprint at many places. Can that be proofed, e.g. with one comparable demo app, once run in old squeak, once in Pharo 1.1/1.2?
> 
> And no, MessageTally spyOn: does not do right!
> 
> Tnx in advance, Guido Stepken
> 
> 

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Alexandre Bergel  http://www.bergel.eu
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