Paul Oliver wrote:

> I've written a libcurl application based on the hiperfifo example and have run into something I'm unsure about. I have
> a test that kicks off requests to around 9K distinct URLs concurrently. It seems that ~75% of time during this test is
> spent inside ares_init_options. Is this expected behaviour? I've called curl_global_init at the start of main. Is
> there anything I'm missing?
>
> Here's a screenshot of the trace: https://www.dropbox.com/s/zghmckkrnj10qov/Screenshot%202015-07-15%2021.05.57.png?dl=0

It looks like it opens and fread() your /etc/hosts file
many times. Do you have a large hosts file?
There must be a way to do this only once.

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