Re: multi curl working very slow when threads > 10

Thanks for response.
Threads = i mean parallel http connections. About resolver: I use stock on
centos and windows, so is there any way to enable threaded resolver on
centos ?

On Mon, Jan 24, 2011 at 7:21 PM, Daniel Stenberg <[email protected]> wrote:

> On Mon, 24 Jan 2011, far Fraser wrote:
>
>  Curl: 7.21.3
>>
>
> Using which resolver backend in libcurl?
>
>
>  I'm trying simple multi curl script (GET list of URLs in 10-100 threads).
>>
>
> The libcurl multi interface doesn't use threads at all. It does multiple
> transfers in a single thread.
>
>
>  It does work on any windows, but when I try the same code on CentOS: if
>> threads = 10, everything works almost fine, but when I set threads = 50 or
>> 100 the process is almost stuck, it takes minutes for "multi_curl_exec"
>>
>
> That sounds like you're using the stock resolver, as that is synchronous
> all the other transfers stall during each name resolve. 100 name resolves in
> serial can take a long time. libcurl for windows defaults to build with a
> threader resolver.
>
> --
>
>  / daniel.haxx.se
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