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Re: curl-multi-socket interface too slow
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From: Aleh Linkin via curl-library <curl-library_at_lists.haxx.se>
Date: Mon, 30 May 2022 17:23:36 +0300
I understand. Thank you.
But why multi_socket_action eats about twice time more CPU then
curl_multi_perform called in cycle with 10ms pause?
On Mon, May 30, 2022 at 5:00 PM Daniel Stenberg <daniel_at_haxx.se> wrote:
> On Mon, 30 May 2022, Aleh Linkin via curl-library wrote:
>
> > I guess that I do something wrong but can't find the problem.
>
> It's too generic to answer specifically, and I really don't have time to
> analyze your code for you. You need to investigate where the bottle-necks
> are;
> DNS, TLS handshake, TCP establishment, RTT, syscalls, bandwidth,
> server-side
> slowness or similar.
>
> We can't tell how fast the application should be able to run in your case
> as a
> theoretical max so it's not possible to say where or even if there is a
> problem.
>
> --
>
> / daniel.haxx.se
> | Commercial curl support up to 24x7 is available!
> | Private help, bug fixes, support, ports, new features
> | https://curl.se/support.html
>
Date: Mon, 30 May 2022 17:23:36 +0300
I understand. Thank you.
But why multi_socket_action eats about twice time more CPU then
curl_multi_perform called in cycle with 10ms pause?
On Mon, May 30, 2022 at 5:00 PM Daniel Stenberg <daniel_at_haxx.se> wrote:
> On Mon, 30 May 2022, Aleh Linkin via curl-library wrote:
>
> > I guess that I do something wrong but can't find the problem.
>
> It's too generic to answer specifically, and I really don't have time to
> analyze your code for you. You need to investigate where the bottle-necks
> are;
> DNS, TLS handshake, TCP establishment, RTT, syscalls, bandwidth,
> server-side
> slowness or similar.
>
> We can't tell how fast the application should be able to run in your case
> as a
> theoretical max so it's not possible to say where or even if there is a
> problem.
>
> --
>
> / daniel.haxx.se
> | Commercial curl support up to 24x7 is available!
> | Private help, bug fixes, support, ports, new features
> | https://curl.se/support.html
>
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