Indeed. It really makes you wonder why caches and pipelines weren't scaled more proportionally.
At least we can appreciate better calling conventions. :) ------Original Message------ From: Christopher Schultz To: Tomcat Users List ReplyTo: Tomcat Users List Subject: Re: [OT] Followup on 32-bit versus 64-bit performance discussion(s) Sent: Mar 14, 2011 17:08 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Justin, On 3/14/2011 3:45 PM, Justin Randall wrote: > In general, it is technically possible for a 32-bit application to > perform faster than a 64-bit application when running on a 64-bit CPU > because of CPU memory cache behaviour. Also due to the amount of data that can be transferred at once across the data paths to the CPU: 64-bit pointers simply take up more bandwidth on those paths. A 32-bit process, using 32-bit pointers, will enjoy a 2x speedup for those types of data. - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk1+g+MACgkQ9CaO5/Lv0PB8DwCgqTO/v8DuSS4M8qKbAiGAMJch bVoAoIdFUL3MM0TqBOFxWZfMp/+9s8At =2ZPm -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org Sent from my BlackBerry device
