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| author | Michael Brown | 2012-06-26 18:19:18 +0200 |
|---|---|---|
| committer | Michael Brown | 2012-06-28 17:02:31 +0200 |
| commit | ec22e08db1fa61f5276b2ed1efbde28a1a45101e (patch) | |
| tree | f8e65353e71dee19449d2934fefd684ed101f386 /src/include | |
| parent | [test] Add self-tests for TCP/IP checksum calculation (diff) | |
| download | ipxe-ec22e08db1fa61f5276b2ed1efbde28a1a45101e.tar.gz ipxe-ec22e08db1fa61f5276b2ed1efbde28a1a45101e.tar.xz ipxe-ec22e08db1fa61f5276b2ed1efbde28a1a45101e.zip | |
[tcpip] Add faster algorithm for calculating the TCP/IP checksum
The generic TCP/IP checksum implementation requires approximately 10
CPU clocks per byte (as measured using the TSC). Improve this to
approximately 0.5 CPU clocks per byte by using "lodsl ; adcl" in an
unrolled loop.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/include')
0 files changed, 0 insertions, 0 deletions