On Thu, 2014-01-16 at 04:33 +0000, Boxer, Aaron wrote: > Hello, > > When I use ZeroCopyPut with hard drive (spinning disk ) disk files, I get a > network transfer rate of about 250 MBPS for first time read of files; 850 > MBPS if the files are already in the Windows OS file cache. Synchronous put > gives me about 30 MBPS. > > But, when I am dealing with files on DVD, I get a network transfer rate of 5 > MBPS for first time read of files, and 850 MBPS if files are in the OS file > cache. > Synchronous put gives me about 30 MBPS. > > So, in the case of first read of DVD files, synchronous client is superior. > Synchronous should be faster, because it can read and send at the same time. > > Does this make sense? It seems a little strange to me. >
Aaron, Zero copy data transfer is very platform specific. Java merely provides a common APIs, which however can have radically different implementations on different platforms and therefore can have different performance characteristics. I guess these numbers have more to do with Windows than with HttpAsyncClient. Oleg --------------------------------------------------------------------- To unsubscribe, e-mail: httpclient-users-unsubscr...@hc.apache.org For additional commands, e-mail: httpclient-users-h...@hc.apache.org
