[Pharo-dev] Raw pane on byteStrings

Thierry Goubier thierry.goubier at gmail.com
Fri Feb 24 09:49:04 EST 2017


2017-02-24 15:43 GMT+01:00 Andrei Chis <chisvasileandrei at gmail.com>:

>
>
> On Fri, Feb 24, 2017 at 3:28 PM, Denis Kudriashov <dionisiydk at gmail.com>
> wrote:
>
>>
>> 2017-02-24 14:29 GMT+01:00 Andrei Chis <chisvasileandrei at gmail.com>:
>>
>>> There should be no hidden costs in GTInspectorIndexedNodes.
>>> I made some experiments in the latest Pharo version and opening the Raw
>>> view on an array with one million numbers takes around 120ms when 100k
>>> elements are computed.
>>> I'll be curious how much it takes on your machine. To test update
>>> indexableDisplayLimit to 50000 in Object>>#gtInspectorVariableNodesIn:
>>> and remove the annotation from Collection>>#gtInspectorItemsIn: (so
>>> that the Items presentation is not loaded)
>>>
>>> arrayLarge := (1 to: 1000000) asArray.
>>>
>>
>> I really wondering why anybody want instantiate wrapper objects for all
>> array items? Fast table approach is to not do that. Only visible part of
>> items should be recreated
>>
>
> This is how the inspector works for the Items view for Array objects. It
> also does not use any wrappers and only computes visible part.
>
>
As I said, it brings in a lazy data source adapted to arrays in a case
where it may well be not needed. My experiments show that there is no need
for this optimisation, at least for arrays ~ 100k.

Thierry
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