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Re: Speed Impact experiment on GCJ

From: Per Bothner <per at bothner dot com>
To: Rui Wang <Rui dot Wang at newcastle dot ac dot uk>
Cc: java at gcc dot gnu dot org
Date: Tue, 14 Feb 2006 17:56:50 -0800
Subject: Re: Speed Impact experiment on GCJ
References: <9366880017F98D4EA02E4412380B82024E8FCA@moonraker.campus.ncl.ac.uk> <17394.3415.506542.476157@zapata.pink> <9366880017F98D4EA02E4412380B8202177677@moonraker.campus.ncl.ac.uk>

Rui Wang wrote:

However, I wonder why we need optimization to make native machine code running faster

> than Java bytecode?

What do you mean by "running Java bytecode"?  If you're talking about
Sun's JDK 1.4.x, for example, you're not "running Java bytecode".
The JDK hotshot engine uses a sophisticated highly-engineered complex
adaptive just-in-time compiler.
--
	--Per Bothner
per@bothner.com   http://per.bothner.com/

References:
- Speed Impact experiment on GCJ
  - From: Rui Wang
- Re: Speed Impact experiment on GCJ
  - From: Andrew Haley
- RE: Speed Impact experiment on GCJ
  - From: Rui Wang

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