On 23/11/2020 20:16, James Read via curl-library wrote: > I have attempted to make two minimal codes that > demonstrate my problem. > > The first can be > downloaded from https://github.com/JamesRead5737/fast > <https://github.com/JamesRead5737/fast> > It basically recursively downloads http://www.google.com > <http://www.google.com>, http://www.yahoo.com > <http://www.yahoo.com> and http://www.bing.com > <http://www.bing.com> > I am able to achieve download speeds of up to 7Gbps with > this simple program > > The second can be downloaded > from https://github.com/JamesRead5737/slow > <https://github.com/JamesRead5737/slow> > The program extends the first program with an asynchronous > DNS component and instead of recursively downloading the > same URLs over and over again downloads from a list of > URLs provided in the http001 file. Full instructions are > in the README. What's troubling me is that this second > version of the program only achieves average download > speed of 16Mbps. > > I have no idea why this is happening. Shouldn't the second > program run just as fast as the first? > > Any ideas what I'm doing wrong?
That's a lot of code you're asking us to debug. Have you profiled it? Have you tried narrowing down the problem to a smaller testcase? I find it hard to believe that these are minimal. Also, there is no recursion here. Cheers ------------------------------------------------------------------- Unsubscribe: https://cool.haxx.se/list/listinfo/curl-library Etiquette: https://curl.se/mail/etiquette.html
