robin.thoni/ipxe - git rthoni.com

Michael Brown 4a8a7bd91a [iobuf] Allocate I/O buffer descriptor separately to conserve aligned memory I/O buffers are allocated on aligned boundaries. The I/O buffer descriptor (the struct io_buffer) is currently attached to the end of the I/O buffer. When the size of the buffer is close to its alignment, this can waste large amounts of aligned memory. For example, a network card using 2048-byte receive buffers will end up allocating 2072 bytes on a 2048-byte boundary. This effectively wastes 50% of the available memory. Improve the situation by allocating the descriptor separately from the main I/O buffer if inline allocation would cause the total allocated size to cross the alignment boundary. Signed-off-by: Michael Brown <mcb30@ipxe.org>		12 år sedan
contrib	[contrib] Update bochsrc.txt to latest version of bochs	12 år sedan
src	[iobuf] Allocate I/O buffer descriptor separately to conserve aligned memory	12 år sedan
COPYING	Initial revision	19 år sedan
COPYRIGHTS	[build] Rename gPXE to iPXE	14 år sedan
README	[doc] Re-add README file	14 år sedan

iPXE README File

Quick start guide:

   cd src
   make

For any more detailed instructions, see http://ipxe.org