-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Tony,
On 2/28/2011 2:57 PM, Tony Anecito wrote: > Since the memory pointers are larger you may need to increase your heap size > but > you can compress the address pointers. +1 > Also, if you use JNI and it is 32-bit then you will have unexpected issues > same > thing with any native libs your try to use. +1 > Generally it will be up to 20% slower due to the pointers. Can you explain that claim? Unless the OP is using compressed pointers (which will require a decode in order to dereference), why would the performance drop when using 64-bit pointers instead of 32-bit pointers. Presumably, the CPU has 64-bit (or bigger) registers and can handle 64-bit numbers just as fast as 32-bit numbers. Or do modern CPUs run in g a32-bit mode where the hardware doesn't bother to add-out to the 33+ bits? - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk1tEMcACgkQ9CaO5/Lv0PBa8ACgmRjggPsYHma8tShCNK2WfOJd Qv8AoJ0KGEVwKQRDfSvwAvoF2Is5oHoW =Anih -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
