Blue Swirl wrote: > On 4/17/08, Anthony Liguori <[EMAIL PROTECTED]> wrote: > >> Yes, the vector version of packet receive is tough. I'll take a look at >> your patch. Basically, you need to associate a set of RX vectors with each >> VLANClientState and then when it comes time to deliver a packet to the VLAN, >> before calling fd_read, see if there is an RX vector available for the >> client. >> >> In the case of tap, I want to optimize further and do the initial readv() >> to one of the clients RX buffers and then copy that RX buffer to the rest of >> the clients if necessary. >> > > The vector versions should also help SLIRP to add IP and Ethernet > headers to the incoming packets. >
Yeah, I'm hoping that with my posted linux-aio interface, I can add vector support since linux-aio has a proper asynchronous vector function. Are we happy with the DMA API? If so, we should commit it now so we can start adding proper vector interfaces for net/block. Regards, Anthony Liguori > I made an initial version of the vectored AIO SCSI with ESP. It does > not work, but I can see that just using the vectors won't give too > much extra performance, because at least initially the vector length > is 1. Collecting the statuses may be tricky. > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > This SF.net email is sponsored by the 2008 JavaOne(SM) Conference > Don't miss this year's exciting event. There's still time to save $100. > Use priority code J8TL2D2. > http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone > ------------------------------------------------------------------------ > > _______________________________________________ > kvm-devel mailing list > kvm-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/kvm-devel > ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
