>>> it will not benefit a carefully written application that takes proper care >>> of buffering; the algorithm has either no effect, or negative effect on the >>> application. >> >> Does curl take "proper care of buffering"? If yes, could it be beneficial to >> set CURLOPT_TCP_NODELAY per default? > > It can only do so much. You could argue that in this particular case of using > the callback method to POST a mere 10 bytes is a rather inefficient approach > to buffering... > > I'd rather not change the default just based on some wild speculations > though, so if someone truly wants to argue for altering the Nagle on/off > default switch somehow, I'd ask for data and statistics to back it up first!
I did some tests, but I could not back up the hypothesis, that disabling the Nagle algorithm improves the performance in FTP and HTTP. Most of the time it even made it a little worse.. I tried to do some tests with tcptrace too but benchmarking this correctly is really hard.. ------------------------------------------------------------------- List admin: http://cool.haxx.se/list/listinfo/curl-library Etiquette: http://curl.haxx.se/mail/etiquette.html