RE: time in invoking the Lex Yacc parser

[Ajithkrishnan VP]

Instead of parsing the entire file ,if I parse for a logical end, return to
the calling function(the function which calls the parser),do some processing
and then call the parser again by using the same file pointer will I be able
to get the same level of performance?

-----Original Message-----
From: John W. Millaway [mailto:address@hidden
Sent: Tuesday, August 14, 2001 5:49 PM
To: Ajithkrishnan VP; address@hidden
Subject: Re: time in invoking the Lex Yacc parser


> parser itself and continue.The issue here is whether invoking the parser a
> 100 times is more costlier(timewise) than invoking it once and completing
> the flow a hundred times inside the parser.And if there is big difference
in
> time what are the orders of magnitude?

The answer is architecture-dependent. If you're worried about saving cycles
at
that level, you should be using a profiler.

$ gcc -pg  -O3 parser.c -o parser
$ ./parser
$ gprof


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