On Tue, Mar 15, 2011 at 4:20 AM, Caldarale, Charles R <chuck.caldar...@unisys.com> wrote: >> From: Leon Rosenberg [mailto:rosenberg.l...@gmail.com] >> Subject: Re: [OT] Followup on 32-bit versus 64-bit performance discussion(s) > >> I'm sorry, I probably missed something, but why should 64 bit app on >> 64 bit os on 64 bit cpu be slower as 32 bit analog? > > Because all the data items are bigger, or have unused slack space associated > with them, in a 64-bit JVM. Â Consequently, the number of actually useful bits > transferred between the CPU scheduler, the operand caches, and main memory is > less per cycle.
So a 64bit cpu has a 32bit mode, or how would a 32bit OS shrink the transmit size? I mean the registers stay the same? Leon > > Â - 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 unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
