Hi,
On 09/29/2010 08:52 PM, narendra babu wrote:
Hello all ,
I have done some search to improve the performance of existing c/c++ code , but
could not find much .
So it will be great if any body can share thoughts on how to improve the
performace or throughput of code .
This question is too generic to answer sensibly. Consider the following points:
a. Is your application I/O bound or CPU bound (ie: does it do mostly I/O or is
it CPU intensive ?)
b. What do you define as 'performance' ? Low memory consumption ? Low
latency/high user responsiveness ? Fast processing ?
c. What is the environment in which your application executes ? (ie: what are
the external dependencies of the application's input and output ?)
The first step to 'improving the performance' is 'understanding the performance'
of your application. So, I would recommend running your application under a
profiler (there are tons of them out there both generic and specialized tools).
also if anybody has worked in converting single threaded code to multithreaded
code in c/c++ .
Don't do this without first understanding why one would need to do this and even
then don't do it without evaluating what other options are available. I say this
because, writing multi-threaded code more often than not is too much effort to
solve the wrong problem :-). That is to say, if you are converting single
threaded code to multi-threaded /only/ for the sake of perceived gain in
performance then don't do it.
do we any tools to identify where we can improve perfromace of c/c++ code .
strace/ltrace (especially the -C option), gprof, oprofile ...and simple printf,
if used sensibly.
cheers,
- steve
--
random spiel: http://lonetwin.net/
what i'm stumbling into: http://lonetwin.stumbleupon.com/
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