Re: Another case for native 64-bit Delphi

Warren_at_bbgsports.com
Date: 01/29/05 

Date: Sat, 29 Jan 2005 10:40:58 +1100

Just a small example of what I have found.

I have a video capture application that captures 6 digital video feeds into
the one PC. At present I am using D7 and things are working extremely well.
All camera feeds are captured in real time and there is NO frame loss at
all. The difference between this app and most video capture apps is that the
video is NOT written to hard drive, instead it is buffered in memory and I
have a rolling 10 seconds from each camera in memory at all times.

The first thing I want to mention is that at present I am starting to hit
the boundaries of addressable memory in Win32. Even though the max memory is
4gb on Win32 only half of this is usable by applications. Of this 2gb I can
use about 1.5gb. Hence my first benefit of going 64 bit would be able to
address more memory and therefore buffer more video in memory.

As a side issue a couple of months ago I decided to see if I could get this
app working in D8 and therefore .NET.

What a disaster that was, after figuring out most of the issues that needed
to be ported, I found that there was no way I could get .NET to deliver the
same performance that I was getting in D7 with Win32. In the end I was just
loosing too many frames when I tried to capture 6 cameras similtaneously. I
found that .NET could capture up to 2 cameras without hitting performance
issues and therefore dropping frames.

I therefore concluded from this that performance of Win32 compared with .NET
was at least 3-to-1 in favour of Win32.

Do I want and need a 64 bit native Delphi compiler - Bloody oath I do as
.NET is a big step back for me.

Warren Brennan
Melbourne, Australia

"Eric Grange" <egrangeNO@SPAMglscene.org> wrote in message
news:41fa5a8f$1@newsgroups.borland.com...

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