Re: [libmicrohttpd] MHD_create_post_processor: recommended buffer size for large posts

[silvioprog]

Oops, wrong link at Google search, I forgot SVN was deprecated. ^^' (it should be disabled)

Basically I want to offer general value for best performance on Android (smartphones) and Linux/Windows (servers), so after your explanation I'm going to use it:

#if defined(__ANDROID__)
# define BF_HTTPSRV_POST_BUF_SIZE 1024 /* 1 kB */
#elif defined(WIN32)
# define BF_HTTPSRV_POST_BUF_SIZE 32768 /* 32 kB */
#else
# define BF_HTTPSRV_POST_BUF_SIZE 65536 /* 64 kB */
#endif

Thanks dude! :-)

On Fri, Mar 31, 2017 at 3:42 AM, Evgeny Grin <address@hidden> wrote:

Hi Silvio,

Sidenote: SVN is not updated any more, latest version is on git:
https://gnunet.org/git/libmicrohttpd.git/tree/doc/examples/largepost.c 

"512" is not recommended size, it's just suitable size for example.

Optimal value depends on OS, architecture, amount of available RAM.
You should experiment to find out what is optimal for you.

--
Best Wishes,
Evgeny Grin

On 31.03.2017 6:17, silvioprog wrote:
> Hello dudes,
>
> Looking at MHD examples, it seems the recommended buffer size to specify
> on MHD_create_post_processor() for large uploads is 512:
>
> https://gnunet.org/svn/libmicrohttpd/doc/examples/largepost.c
> <https://gnunet.org/svn/libmicrohttpd/doc/examples/largepost.c>
>
> However, what means large for you? About 100 MB, 1 GB, 10 GB or greater?!
>
> I have a structure that I need to support ~ 5 GB, so I'm planning to use
> 1024, because I want fast transfer using less memory and CPU possible.
> In that case, is 1024 an ideal size?
>
> Thank you!
>
> P.S.: we should specify the size (in MB or GB) that we consider large on
> the example `largepost.c`.
>
> --
> Silvio Clécio

--

Silvio Clécio