-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Joe,
Joe Nathan wrote: > I would discourage to use such machine! 8GB means you are using 64 bit > machine which will be much slower than 32 bit machines. Huh? Why would a 64-bit machine run slower than a 32-bit machine? Even better: why would either outperform the other when you haven't said what you're doing? For instance, a 32-bit machine trying to run 64-bit operations is hideously slow. A 64-bit machine running 32-bit operations should be just as fast as its 32-bit cousin, since it's getting no advantage with those wasted 32 extra bits per integer. I can't think of a single reason why a 64-bit processor would perform worse than a comparable 32-bit processor running the same code. The advantage of a 64-bit processor is access to more (flat) memory and it can do bigger operations with less scratch work. With comparable hardware, I would expect a 64-bit JVM (on 64-bit HW) to perform identically to a 32-bit JVM (on 32-bit HW) when running the same application (assuming that no heavy mathematical calculations are being done that could benefit from 64-bit capability). > Big memory is useful > ONLY if you have applications that can benefit big memory such as database > systems. In Java, if you use lots of memory and create lots of objects, your > Java applications will have periodic [seizures]! Hm. I don't think JVMs have used stop-the-world GC for some time, now. > This is because of garbage > collection will take significant time, if started. Full GCs happen very rarely, unless you are abusing your heap. > I would be happy with 1 ~ 2 GB 32bit machines! This could deliver much > faster services. While a fleet of 2GB commodity boxes do have their advantages, you don't have to set up complicated load balancing if you've got one huge machine that can do everything ;) - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGqO5W9CaO5/Lv0PARApZvAJ9IJzzysOWlNEM9nqZb7uProue7YwCgwegp B8rE+zmpCLU7zeqWIG8ctVQ= =PtaY -----END PGP SIGNATURE----- --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
