Well, JPEG in particular (I've implemented it) CAN use floating
point in the DCT (discrete cosine transform) component but doesn't
necessarily have to; it depends on the implementation.
But as far as an answer your question, I'm sure there's someone
here who has done a direct comparison. I've only back-ended Sun Rays
with UltraSPARC-II and UltraSPARC-III systems, and one test
installation with Linux on x86. THAT experience has solidified my
preference for UltraSPARC, as has everything else I've done with x86.
-Dave
On Apr 21, 2010, at 3:16 PM, LeBar, Russell J wrote:
Good point, though I would think that the display algorithms would
use some floating point calculations but I'd have to read up more
on e.g. implementing JPEG style lossy compression to be sure. I was
really hoping either the folks from SUN on here would have some
comments or someone who has tried this in the field would chime in
(nothing beats real world experience). -- Russ
-----Original Message-----
From: [email protected] [mailto:sunray-users-
[email protected]] On Behalf Of Dave McGuire
Sent: Wednesday, April 21, 2010 14:14
To: SunRay-Users mailing list
Subject: Re: [SunRay-Users] Which makes for a better Sun Ray server
-- the M or T SPARC lines?
On Apr 21, 2010, at 3:06 PM, LeBar, Russell J wrote:
I'm spec'ing out new hardware to replace our aging Sun Ray servers
and was wondering if the T2 processor line was well suited for Sun
Ray type activity or if I should go with a VI or a VII server? We'd
have 50-150 users spread across two servers, mostly running Java
apps and some X-windows traffic via SSH X11 forwarding. We would
also have a small Citrix XenApp for UNIX deployment. My guess is
that compression and encryption take a hit on the T2s because
floating point isn't their strong suit, but though I would ask due
to the big difference in price. Thanks!!
Unless I'm horribly mistaken, both common compression algorithms
and common encryption algorithms should use fixed-point math, not
floating point.
-Dave
--
Dave McGuire
Port Charlotte, FL
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