I'm using libcurl to access a web service and for efficiency, trying to reuse connections. It's all working fine when I perform request after request without too long delay.
However, if there is a period of inactivity (no call to easy_curl_perform or any curl function) of more than 15 seconds, then the request takes a lot longer (basically instead of an average 70ms, it's 350ms and as soon as the internet is slow, it increases from 300ms to 2-3seconds). Using tcpdump, it looks like in this case, curl does not reuse previous connections and perform all the initialisation (using gdb, it shows Curl_connect being called 6 times instead of one only) like it does for first connection. Configuration: linux ubuntu 9.10, libcurl 7.18.1, openssl 0.9.8g The same code works fine on Windows (or at least it looks like it works fine) I've tried a couple of options like CURLOPT_MAXCONNECTS (I'm using one curl handle so 5 should be already enough), CURLOPT_DNS_CACHE_TIMEOUT without success. I'm also calling curl_easy_reset(m_Curl); before each new transfer. What could be the cause of this? How can I fix this? Thanks for your help Pierre ------------------------------------------------------------------- List admin: http://cool.haxx.se/list/listinfo/curl-library Etiquette: http://curl.haxx.se/mail/etiquette.html
