implemented features (Re: Decision time....)

km b kmb810 at
Wed Jun 6 05:35:02 PDT 2007

On 04 Jun 2007 11:58:18 GMT, Rahul Siddharthan <rsidd120 at> wrote:

I made no claim about "all" binaries, and I claimed the exact opposite
of what you say I claimed for my own binaries: I said the 32-bit
binaries are 50% slower than the 64-bit binaries.  (Eg, running time
25 secs for 64-bit, 38 secs for 32-bit.)
i did some homework for you and conducted the FFT benchmark (double
precision only, single precision disabled) of the specific library you
mention (GSL) using fftbench in two
different execution environments  on Intel Core 2 Duo 1.6G machine
1. pure 64-bit - FreeBSD , CFLAGS="-m64 -march=nocono -O3 -fomit-frame-pointer"

2. 32-bit - DragonFlyBSD, CFLAGS="-march=prescott -O3 -fomit-frame-pointer"

And here I am attaching the results for you to study. Let me know
where do you see the 50 % performance increase?  Although this is not
an extensive testing you're most welcome to verify it.
Something is wrong up on cloud # 9!
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