[Development] is it possible to increase the max. document size for the JSON parser?

Konstantin Tokarev annulen at yandex.ru
Wed Aug 7 01:23:14 CEST 2019



07.08.2019, 02:21, "Sérgio Martins via Development" <development at qt-project.org>:
> On 2019-08-06 22:49, Sérgio Martins via Development wrote:
>>  On 2019-08-06 13:48, René J. V. Bertin wrote:
>>>  Joerg Bornemann wrote:
>>>
>>>>  Unfortunately, this isn't possible at the moment.
>>>>  This issue is tracked in QTBUG-47629.
>>>
>>>  Thanks, I'll try the patch!
>>
>>  Can you also check how much memory is occupied by reading that 100 MB
>>  file ?
>>  My memory is hazy but I think it was several GBs.
>
> I looked at it again and the test-case was flawed, it was using unneeded
> QStrings and QString::toUtf8().
>
> By reading directly from the file heaptrack now reports only 300 MB
> peak.

That's what should be expected, as QJsonDocument uses binary serialization format
as its in-memory representation.

-- 
Regards,
Konstantin



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