Oleg,
All right. I am glad you are not doing this unconciously. It will be
interesting to see benchmark results. My guess is that you should not
see a significant performance gain (I expect less than 5%). The modern
GC algorithms in the Sun VMs are very good for short-lived Objects. To
see a difference you probably have to run HttpClient with multiple
threads under a high load for a long time, so that enough garbage is
produced and the GC actually has to run. The number of CPUs will have an
effect as well.
Odi
Oleg Kalnichevski wrote:
Odi,
I am aware this is a questionable decision. The primary motivating
factor was to implement zero (or almost zero) garbage HTTP request
parsing and see if that results in any significant performance gains.
I have run a few tests yesterday and so far the impact of reduced
generation of intermediate objects when parsing HTTP requests seems
minimal for JRE 1.5. So, I am fully prepared to revert this change if
there are no tangble performance gains for older JREs. I would like
to experiment a little further before such a decision is made
Oleg
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