> From: Christopher Schultz [mailto:[EMAIL PROTECTED] > Subject: Re: Java 1.6 > > Really? Other than crap like auto-boxing, attributes, and > foreach-style 'for' syntax, what has the compiler done for > me, lately? I see all that as syntactic sugar.
Agreed, that is just syntax "enhancement". I was referring to byte code generation, which has improved somewhat over the years. (I don't have any numbers, though.) > Has the bytecode emitted by previous versions been perticularly > non-optimized? Loops have gotten better, and there's less wasted byte codes (e.g., computations whose results aren't stored anywhere now usually don't generate any code rather than just being discarded at the end with a pop of the operand stack). The JITs usually took care of this anyhow, but the first few thousand trips through a given method via the interpreter would suffer. > I suppose by "leaner", I meant in terms of required RAM. Not sure about that. A lot of the JIT-related performance improvement is due to increased inlining and loop unrolling; those techniques consume more memory per method, not less. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
