From: Evgeniy Polyakov <[EMAIL PROTECTED]> Date: Mon, 8 May 2006 23:51:32 +0400
> Since nocopy is actually equal to dma into mapped buffer, > so we get something close to 6 times less CPU usage, and if it can be > lineary transferred into performance gain, we found where the most > significant part of VJ channels lives. Van's machines were cpu limited. And once cpu limit was removed, they became bus bandwidth limited. > Unfortunately it is not backward compatible with recv() system call, > and requires major changes in application to use this advantage. I have stopped believing that compatible API for getting top performance in networking receive is possible a very long time ago. ABI change is an absolutely requirement. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
