RE: Eu 2.5 verryy sloww on Win XP ?
Robert Craig wrote:
>
>
> posted by: Robert Craig <rds at RapidEuphoria.com>
>
> Gbadebo Oladosu wrote:
> > Yes, I found this to be the case on Win XP as well.
> > I tested 2.5 with a Windows program, and you could tell right away by
> > how long it took for the program window to come up compared to 2.4.
> >
> > 'Debo
> >
> > codepilot Gmail Account wrote:
> > >
> > > I have 2600+ AMD XP, win98 euphoria 2.5 alpha, and winwire also goes
> > > slow.
> > > Daniel
> > >
> > > On Thu, 18 Nov 2004 02:36:31 -0800, Andy Drummond
> > > <guest at rapideuphoria.com> wrote:
> > > >
> > > > posted by: Andy Drummond <andy at kestreltele.com>
> > > >
> > > > I have downloaded the alpha Eu 2.5, and it seems odd.
> > > > On my home PC - Pentium 3 500MHz Win 98SE - it runs fast as you like.
> > > > On my work PC - Pentium 4 2.8GHz Win XP & SP2 - it runs about 1-2%
> > > > of the speed of Eu 2.4. I installed it clean (renamed previous Euphoria
> > > > directory) and tried WinWire demo program - you can follow the letter E
> > > > quite easily, whereas at home it is all a blur and hard to see at all.
> > > > I tried Judith's IDE (I have a bound version which is reliable) and it
> > > > took over a minute just for the splash screen to appear.
> > > >
> > > > So - does anyone have any suggestions? it sounds decidedly weird to me.
>
> winwire looks pretty fast to me. 2.5 alpha, XP, Pentium 4 1.8 GHz.
>
> Judith's IDE is a special case.
> It has code at the very beginning of the source
> to display a splash screen. Under 2.4 this splash
> screen appears almost immediately, then you wait for parsing
> to complete. That's because 2.4 will execute code before it
> has finished parsing the program. 2.5 parses the *whole* program before
> executing anything. Including Win32Lib etc., the IDE is
> 100,000 lines of Euphoria code. That's a lot
> of parsing to do, and 2.5 has a Euphoria-coded parser.
> 2.4 has a C-coded parser. So you might consider
> the IDE to be the "worst-case" example. It's the biggest
> Euphoria program I know of.
> If you bind the IDE using 2.5, or translate/compile it,
> it will start up much faster, because no parsing need be done.
> (Bound programs under 2.4 must be parsed).
> Other very large (tens of thousands of lines) programs may also
> appear to start up a tad slower using the 2.5 interpreter,
> but we're only talking about a second or two (unless you have an ancient
> machine). I think with the vast majority of programs,
> you'd hardly notice any difference. As computers get faster,
> this small difference will get even smaller.
>
> Regards,
> Rob Craig
> Rapid Deployment Software
> http://www.RapidEuphoria.com
Sorry, I think maybe you missed what I was saying.
A machine some six times faster than my home P3 500MHz machine
runs the WinWire demo maybe five, maybe ten times slower.
That's nothing to do with parsing.
The IDE is a huge bit of code, but over a minute for it to parse?
No, no, there's something fundamentally wrong. That's why I loaded
Eu2.5 into a fresh directory and ran it there.
I may be the only one to find it this slow, but it looks to me
that Eu2.5 and XP SP2 don't like each other too much, because it
was fine on the P3 Win98SE machine. Same downloaded setup program,
same fresh directory....same WinWire. Until I can sort this out, or
someone can, I shall stick with 2.4 (which is fine anyway) and miss
out on the advantages of 2.5, which sound good.
Andy Drummond
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