Re: [Pharo-users] "Leak"/reference hunting with RefsHunter

[Stephane Ducasse]

Hi holger

I do not know who is maintinaing the config of ReferenceFinder but yes
on the principle.

Stef

On Sat, Jul 22, 2017 at 9:58 PM, Holger Freyther  wrote:
>
>> On 22. Jul 2017, at 20:40, Pavel Krivanek  wrote:
>>
>> In the most of standard cases you can use ReferenceFinder. It is in the 
>> catalog too and I think that we should integrate it into the Pharo because 
>> it is extremely useful for the memory leaks detection. It does not require 
>> snapshots and I firstly try it before applying of the RefsHunter (and I say 
>> that as the author of the RefsHunter ;-))
>
> Cool and thank you for RefsHunter! I found RefsHunter by typing "leak". Could 
> we get this attached to the ReferenceFinder in the catalog as well?
>
> holger

Re: [Pharo-users] "Leak"/reference hunting with RefsHunter

[Holger Freyther]

> On 22. Jul 2017, at 20:40, Pavel Krivanek  wrote:
> 
> In the most of standard cases you can use ReferenceFinder. It is in the 
> catalog too and I think that we should integrate it into the Pharo because it 
> is extremely useful for the memory leaks detection. It does not require 
> snapshots and I firstly try it before applying of the RefsHunter (and I say 
> that as the author of the RefsHunter ;-))

Cool and thank you for RefsHunter! I found RefsHunter by typing "leak". Could 
we get this attached to the ReferenceFinder in the catalog as well?

holger

Re: [Pharo-users] "Leak"/reference hunting with RefsHunter

[Pavel Krivanek]

In the most of standard cases you can use ReferenceFinder. It is in the
catalog too and I think that we should integrate it into the Pharo because
it is extremely useful for the memory leaks detection. It does not require
snapshots and I firstly try it before applying of the RefsHunter (and I say
that as the author of the RefsHunter ;-))

-- Pavel

2017-07-22 17:04 GMT+02:00 Holger Freyther :

> Hi,
>
> as I didn't remember the name of the tool and maybe as future reference to
> myself. I have installed RefsHunter from the catalogue and it helped me a
> lot.
>
> I was looking at the memory consumption of my Pharo6.0 image and did
> something crazy like counting how many objects exist of a specific class
> (Object allSubInstances copy do.. and put that into a dictionary). I
> noticed that for the ASN1 model the nodes of the parse tree survived.
> Yesterday I tried to use the pointer explorer but then most references are
> held by the UI code and I gave up after a bit.
>
> Today I found the RefsHunter again and something as simple (found through
> the class comments)
>
> | rh |
> rh := RefsHunter snapshot.
> rh wayFrom: ASN1AssignmentNode allInstances first to: myAsn1Model
>
>
> Brings me to a list of references and when searching the list from the end
> to the beginning gives a pretty good picture of where things go wrong.
>
>
> Great to have a platform that allows to walk the heap and great that there
> are tools that make it manageable!
>
>
> have a nice weekend
>
> holger
>

[Pharo-users] "Leak"/reference hunting with RefsHunter

[Holger Freyther]

Hi,

as I didn't remember the name of the tool and maybe as future reference to 
myself. I have installed RefsHunter from the catalogue and it helped me a lot.

I was looking at the memory consumption of my Pharo6.0 image and did something 
crazy like counting how many objects exist of a specific class (Object 
allSubInstances copy do.. and put that into a dictionary). I noticed that for 
the ASN1 model the nodes of the parse tree survived. Yesterday I tried to use 
the pointer explorer but then most references are held by the UI code and I 
gave up after a bit.

Today I found the RefsHunter again and something as simple (found through the 
class comments)

| rh |
rh := RefsHunter snapshot.
rh wayFrom: ASN1AssignmentNode allInstances first to: myAsn1Model


Brings me to a list of references and when searching the list from the end to 
the beginning gives a pretty good picture of where things go wrong.


Great to have a platform that allows to walk the heap and great that there are 
tools that make it manageable!


have a nice weekend

holger