Linked by Thom Holwerda on Thu 21st Jul 2011 14:10 UTC, submitted by Jennimc
Mozilla & Gecko clones "Over the last couple of weeks, Mozilla has finally stepped up its 64-bit testing process. There are now five slaves dedicated to building Firefox for Windows x64, which means that from Firefox 8 and onwards, you'll be able to pick up 64-bit builds that are functionally identical to its 32-bit cousins but operating in native 64-bit CPU and memory space." Th 64bit version is about 10% faster, benchmarks show.
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RE[4]: Happy to see a benefit
by AndrewZ on Thu 21st Jul 2011 20:16 UTC in reply to "RE[3]: Happy to see a benefit"
AndrewZ
Member since:
2005-11-15

NEC released RISC MIPS64 in 1998. Loongson has a low power 64-bit MIPS laptop. MIPS is a very nice architecture with a very clean instruction set. But after you port Linux you still only have a laptop that runs Linux. And slowly too!

Ultimately these architectures are all still only Turing compatible. Ultimately they still run all the same high level software.

Edited 2011-07-21 20:17 UTC

Reply Parent Score: 2

RE[5]: Happy to see a benefit
by Alfman on Thu 21st Jul 2011 21:04 in reply to "RE[4]: Happy to see a benefit"
Alfman Member since:
2011-01-28

AndrewZ,

"NEC released RISC MIPS64 in 1998. Loongson has a low power 64-bit MIPS laptop. MIPS is a very nice architecture with a very clean instruction set. But after you port Linux you still only have a laptop that runs Linux. And slowly too!"

Interesting.

A few years ago I had the opportunity to compare debian running on an older embedded PPC 233mhz versus a (then new) ARM9 400mhz. I know one can't compare speeds directly, but the PPC was many times faster for all CPU loads.

I was disappointed with the ARM's performance, although it's entirely possible this was due to inadequate software optimization on the ARM architecture.

Debian ports:

Intel x86
Moterola 68k (ceased)
Sun Sparc
Alpha
PowerPC
ARM
MIPS
HP PA-RISC
Itanium
IBM S/390
AMD64
SuperH
Renesas m32r
AVR32

Reply Parent Score: 2

RE[6]: Happy to see a benefit
by dsmogor on Thu 21st Jul 2011 21:31 in reply to "RE[5]: Happy to see a benefit"
dsmogor Member since:
2005-09-01

It's all probably due to:
- poor compiler support
- weaker FP if any
- PPC being out of order , i remember 601 and 604 were quite decent archs comparable to Pentium Pro
- weak memory bus of the arm (wide mem buses are power hunrgy)

Reply Parent Score: 2