On 07/29/2011 07:46 AM, Roy Smith wrote:
It's often said that you shouldn't try to guess what's slow, but use
profiling tools to measure what's slow. I had a great example of that
yesterday. ...
Yes.
My first experience of profiling was about 25 years ago. I was
experimenting with Borland's Turbo Profiler on C code. I thought to
myself, What kind of clueless programmer doesn't know where his code is
spending its time? How useful could this be?
Then I ran the profiler and found out how clueless I really was. The
profiler showed me that I could change one line in a thousand line
program and cut the run time by 50%.
Alan
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