best methods to do C,C++ code optimization ?

[swathi]

What are the best methods to do C,C++ code optimization manually ?
I has gone though some links sill not satisfied.
Can any one send me best optimization links

[Victor Bazarov]

swathi wrote:

What are the best methods to do C,C++ code optimization manually ?
I has gone though some links sill not satisfied.
Can any one send me best optimization links

Try "Efficient C++" book. The main thing to understand is that any
optimizations should be based on measuring and analyzing.

V
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[Andre Kostur]

swathi <ax*****@gmail.comwrote in news:1180451684.020073.20780
@g37g2000prf.googlegroups.com:

What are the best methods to do C,C++ code optimization manually ?
I has gone though some links sill not satisfied.
Can any one send me best optimization links

Measure, measure, measure. Use some sort of profiling tool to find out
where your code is _actually_ too slow. Then look at why that code would
be too slow and fix it. Usually by changing algorithms.

[Victor Bazarov]

Andre Kostur wrote:

swathi <ax*****@gmail.comwrote in news:1180451684.020073.20780
@g37g2000prf.googlegroups.com:

>What are the best methods to do C,C++ code optimization manually ?
I has gone though some links sill not satisfied.
Can any one send me best optimization links

Measure, measure, measure. Use some sort of profiling tool to find
out where your code is _actually_ too slow. Then look at why that
code would be too slow and fix it. Usually by changing algorithms.

The usual spiel about what to do after you measure, is "prevent extra
work from being performed" and "cache everything you can" and "use
lookup tables everywhere". When none of those are possible (i.e. they
have all been already applied), rearrange your objects in memory to
reduce CPU cache misses and page faults. Oh, and one more is "do all
work when the user is not looking", i.e. in the "background". Good
luck!

V
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[EventHelix.com]

On May 29, 11:14 am, swathi <[e-mail]:

What are the best methods to do C,C++ code optimization manually ?
I has gone though some links sill not satisfied.
Can any one send me best optimization links

The following article describes C and C++ optimization techniques:

http://www.eventhelix.com/RealtimeMa...AndCPPCode.htm

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