Re: Performance of loop - Mailing list pgsql-jdbc

From Oliver Jowett
Subject Re: Performance of loop
Date
Msg-id 42706503.7080800@opencloud.com
Whole thread Raw
In response to Performance of loop  (Gnanavel S <s.gnanavel@gmail.com>)
Responses Re: Performance of loop
List pgsql-jdbc
Gnanavel S wrote:

> In the above coding, say if the length of the query is 1000 characters
> then the query.length() is evaluated 1000 times there by reducing the
> performance.
>  I think the loop can be rewritten as
>
> for (int i = 0,c=query.length(); i < c; ++i)
> {
> char c = query.charAt(i);
>
> ....
> .....
> }

Have you benchmarked this? I doubt it's really a hotspot given that the
JIT is likely to inline length(). Premature optimization and all that..

-O

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