Daisuke Nojiri e381585619 Optimize memset ...

This speeds up memset by copying a word at a time.

Ran the unit test on Peppy:
  > runtest
  ...
  Running test_memset... (speed gain: 141532 -> 32136 us) OK
  ...

Ran make buildall:
  ...
  Running test_memset... (speed gain: 1338 -> 280 us) OK
  ...

TEST=Described above.
BUG=chrome-os-partner:23720
BRANCH=none
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Change-Id: If34b06ad70f448d950535a4bea4f6556627a9b6f
Tested-by: Daisuke Nojiri <dnojiri@google.com>
Reviewed-on: https://chromium-review.googlesource.com/185936
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Daisuke Nojiri <dnojiri@google.com>

2014-03-01 20:15:59 +00:00

7.3 KiB

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