CURLINFO_SPEED_DOWNLOAD(3) Library Functions Manual NAME CURLINFO_SPEED_DOWNLOAD - get download speed SYNOPSIS #include CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_SPEED_DOWNLOAD, double *speed); DESCRIPTION Pass a pointer to a double to receive the average download speed that curl measured for the complete download. Measured in bytes/second. CURLINFO_SPEED_DOWNLOAD_T(3) is a newer replacement that returns a more sensible variable type. PROTOCOLS This functionality affects all supported protocols EXAMPLE int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode res; curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); /* Perform the request */ res = curl_easy_perform(curl); if(!res) { double speed; res = curl_easy_getinfo(curl, CURLINFO_SPEED_DOWNLOAD, &speed); if(!res) { printf("Download speed %.0f bytes/sec\n", speed); } } } } DEPRECATED Deprecated since 7.55.0. AVAILABILITY Added in curl 7.4.1 RETURN VALUE Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. SEE ALSO CURLINFO_SIZE_UPLOAD_T(3), CURLINFO_SPEED_UPLOAD(3), curl_easy_getinfo(3), curl_easy_setopt(3) libcurl 2024-11-07 CURLINFO_SPEED_DOWNLOAD(3)