[FFmpeg-cvslog] r11598 - trunk/doc/optimization.txt
melanson
subversion
Tue Jan 22 22:57:19 CET 2008
Author: melanson
Date: Tue Jan 22 22:57:19 2008
New Revision: 11598
Log:
clarify previous revision on optimization justification
Modified:
trunk/doc/optimization.txt
Modified: trunk/doc/optimization.txt
==============================================================================
--- trunk/doc/optimization.txt (original)
+++ trunk/doc/optimization.txt Tue Jan 22 22:57:19 2008
@@ -30,15 +30,15 @@ NOTE: If you still don't understand some
When is an optimization justified?
----------------------------------
-Normally, clean & simple optimizations on widely used codecs can achieve
-an overall speedup of 0.1%. These speedups accumulate and can make a big
-difference after awhile. Also, if none of the following factors get
-worse due to an optimization -- speed, binary code size, source size,
-source readability -- and at least one factor improves, then an
-optimization is always a good idea even if the overall gain is less than
-0.1%. For obscure codecs that are not often used, the goal is more
-toward keeping the code clean, small, and readable than to make it 1%
-faster.
+Normally, clean and simple optimizations for widely used codecs are
+justified even if they only achieve an overall speedup of 0.1%. These
+speedups accumulate and can make a big difference after awhile. Also, if
+none of the following factors get worse due to an optimization -- speed,
+binary code size, source size, source readability -- and at least one
+factor improves, then an optimization is always a good idea even if the
+overall gain is less than 0.1%. For obscure codecs that are not often
+used, the goal is more toward keeping the code clean, small, and
+readable instead of making it 1% faster.
WTF is that function good for ....:
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