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Re: [PROF RFC 1/2] profiling of libcurl by curl-loader, steady state

From: Robert Iakobashvili <coroberti_at_gmail.com>
Date: Thu, 19 Apr 2007 15:11:46 +0200

Daniel,

Thank you for the detailed explanations.
We will look into it deeper.

On 4/19/07, Daniel Stenberg <daniel_at_haxx.se> wrote:
> On Thu, 19 Apr 2007, Robert Iakobashvili wrote:
>
> > Could you recommend a way (sharing?) do decrease memory consumption per
> > client in libcurl?
>
> Using the multi interface it already shares connections and DNS cache
> automatically and then there's not much more to share. The easy struct has a
> bunch of variables for internal house-keeping and then there are the buffers:
>
> There are no less than three buffers allocated at CURL_MAX_WRITE_SIZE (16K),
> so 16*3=48K is "wasted" there already. You can of course:
>
> 1 - change the code to alloc the required buffer(s) once they're needed, as
> the upload buffer is rather pointless without uploads and I believe the
> master_buffer can be skipped if not using pipeline...
>
> 2 - experiment with lowering the CURL_MAX_WRITE_SIZE value, but that might of
> course also risk getting a slower throughput.
>
> --
> Commercial curl and libcurl Technical Support: http://haxx.se/curl.html
>

-- 
Sincerely,
Robert Iakobashvili,
coroberti %x40 gmail %x2e com
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Received on 2007-04-19