Curt, WE7U wrote:
On Tue, 28 Oct 2008, Lee Bengston wrote:
The only problems I have encountered with 64 bit linux versions is the
lack of 64 bit plugins like java. On my core 2 duo laptop, I didn't
notice much speed difference between the 64 and 32 bit versions, so I
just went with the 32.
Really? It's reading/writing 8 bytes at a time instead of 4 to your
memory. It should be faster.
My Core2Duo laptop is a real dog for performance. I run the 64 bit
Fedora on it but it's about to get a scrub and grow CentOS 5.2, for
overall compatibility with the rest of my shop. Maybe that'll prove a
bit better, but I doubt it. I believe there are problems in the
processor implementation going deeper than the firmware/BIOS I'll have
to solve. My next laptop will be a Mac.
BTW: You can often use 32-bit versions of libraries alongside other
64-bit stuff. I try not to, but that option is available if you
really need to run something.
Oh, one problem I did have with the 64-bit system was the Java
Hot-Spot compiler for 64-bit: I had to downgrade from 1.6.x to
1.5.x 'cuz the compiler kept crashing. It's a known bug and perhaps
1.7.x will fix it. It was the Sun Java 1.6.x package in
OpenSuSE-11.0 for x86_64.
We've seen a bunch of problems in all releases of 1.6.x on the
javAPRSSrvr code. Standard now is to run 1.5.4. Color this as a
datapoint. I don't know I'll upgrade to 1.7.x anytime soon: I've got
too many servers I use!
--
Gerry Creager -- [EMAIL PROTECTED]
Texas Mesonet -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983
Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843
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