Re: Memory growth observed with C++ application consuming libpq.dll on Windows

Hi Yasir,

Are you looking for a fully functional sample program or only the APIs from
libpq library that our product uses? I am asking this because if the
requirement is to have a sample code, then I will have to work on creating
one on the same lines as our product.

Rajesh

On Thu, Aug 1, 2024 at 5:27 PM Yasir <yasir(dot)hussain(dot)shah(at)gmail(dot)com> wrote:

> Hi Rajesh,
>
> Can you please attach a sample code snippet showing libpq's functions
> being called? It will help to identify the libpq's functions to investigate
> further for a potential mem leak.
>
> Regards...
>
> Yasir Hussain
>
> On Thu, Aug 1, 2024 at 4:30 PM Rajesh Kokkonda <rajeshk(dot)kokkonda(at)gmail(dot)com>
> wrote:
>
>> Hi,
>>
>> We are seeing a gradual growth in the memory consumption of our process
>> on Windows. Ours is a C++ application that directly loads libpq.dll and
>> handles the queries and functions. We use setSingleRowMethod to limit the
>> number of rows returned simultaneously to the application. We do not
>> observe any memory increase when the application is run on Linux. There is
>> no code difference between Windows and Linux from the
>> application standpoint. We ran valgrind against our application on Linux
>> and found no memory leaks. Since the same code is being used on Windows as
>> well, we do not suspect any memory leak there. The question is if there
>> are any known memory leaks with the version of the library we are using on
>> Windows. Kindly let us know.
>>
>> The version of the library on Linux is libpq.so.5.16
>>
>> The windows version of the library is 16.0.3.0
>>
>>
>> [image: image.png]
>>
>> Thanks,
>> Rajesh
>>
>