Re: Why does libcurl call “gettimeofday” during curl_easy_perform?

On Wed, 17 Jun 2020, 张聪(柯图) via curl-library wrote:

> I'm using libcurl to pull a big file. While doing the vtune profiling, I
> found that libcurl called gettimeofday() inside "curl_easy_perform" and it
> cost notable time. Is this necessary? Can I set some option to avoid this
> function call?

There's no option to avoid it, no. libcurl has a lot of functionalitiy that is
based on time and it uses "Curl_now()" internally to get the current time -
and that function ends up calling gettimeofday().

This said, we *should* minimize the amount of time calls. It has been a while
since we had a cleanup of that so I'm sure we can improve here - in particular
by avoiding subsequent calls to Curl_now() when we did one in the parent
function etc.

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Received on 2020-06-17