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.
64-bit memory addresses occupy more space within a single cache line and can result in added memory cache misses (cache lines filled more quickly) which require additional "loads" from real memory into CPU registers, effectively slowing down the performance of an application. Sent from my BlackBerry device -----Original Message----- From: Leon Rosenberg <rosenberg.l...@gmail.com> Date: Mon, 14 Mar 2011 20:33:21 To: Tomcat Users List<users@tomcat.apache.org> Reply-To: "Tomcat Users List" <users@tomcat.apache.org> 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? regards Leon On Mon, Mar 14, 2011 at 6:45 PM, Christopher Schultz <ch...@christopherschultz.net> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > David, > > On 3/14/2011 1:36 PM, David kerber wrote: >> On 3/14/2011 1:31 PM, Christopher Schultz wrote: >>> >>> I should have mentioned, we are in a Linux environment, so we have lots >>> of options. ;) >> >> Lucky you; I wish I could say the same... > > You should lobby to virtualize your infrastructure on top of some kind > of Linux-based virtualization platform. Then you can still be "running > on Windows" but also have some ... other options ;) > > I would suggest the other way around if you wanted to operate in a Linux > environment, but if the idea is to improve stability, then running Linux > on top of Windows isn't exactly "recommended technique". > > I had always heard that Microsoft SQL Server was a really good RDBMS. > It's just too bad it has to run on Windows. > > - -chris > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.10 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAk1+VDYACgkQ9CaO5/Lv0PBD+wCfQBK7R2hi6tcsxYaIjNTMYQsR > jlkAnijh8Tmk7JEX8GLsfzFkf/4qc8Ck > =emTF > -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > 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
