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Software News   Software News : Classic Amiga News! - Executive now freeware!
   posted by Mikey_C on 11-Jul-2005 20:09:31 (6553 reads)
With thanks to Frak, for asking the author of Executive (Petri Nordlund) into releasing the keyfile for free to the Amiga community

Please visit http://www.geocities.com/hapablap2002/apa/ to obtain the key file and executive archive.

What's Executive?


Executive improves the responsiveness of your Amiga.
One CPU intensive application no longer causes the whole system to crawl.
You can start many CPU intensive applications and the system still feels as if it would be totally idle.

Manyt thanks to Petri Nordlund for his kindness in donating this bit of software to the Amiga community
    

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Metalheart 
Re: Classic Amiga News! - Executive now freeware!
Posted on 11-Jul-2005 20:24:50
#1 ]
Elite Member
Joined: 21-Aug-2003
Posts: 2967
From: Somewhere in the Dutch mountains....

I never tried executive, but wasn't AmigaOS supposed to do all this without any help ?

Does it realy make a big difference ?

Cheers,

Martin


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PulsatingQuasar 
Re: Classic Amiga News! - Executive now freeware!
Posted on 11-Jul-2005 20:30:23
#2 ]
Cult Member
Joined: 10-Mar-2003
Posts: 550
From: The Netherlands, Europe

For anybody that does not know.

There is also a keyfile on the EaglePlayer website. Now you can use EmpyGUI24!

P.S: The newest version of EmpyGUI24 is already in the big beta archive on that site. The one seperate has a lower version.


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ssolie 
Re: Classic Amiga News! - Executive now freeware!
Posted on 11-Jul-2005 20:33:34
#3 ]
Elite Member
Joined: 10-Mar-2003
Posts: 2712
From: Alberta, Canada

@Metalheart
Quote:
Does it realy make a big difference ?

Yes it does.. when used correctly. Executive is a great package and includes an uninstaller so there is no reason to be nervous about giving it a go. I used Executive for years without any problems on various AmigaOS 3.x systems.

New schedulers will come for AmigaOS 4.x as well according to the old OS4 feature list. One step at a time..


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Metalheart 
Re: Classic Amiga News! - Executive now freeware!
Posted on 11-Jul-2005 20:36:03
#4 ]
Elite Member
Joined: 21-Aug-2003
Posts: 2967
From: Somewhere in the Dutch mountains....

@ ssolie

I see...

So what does it exactly do ? Dividing up needed CPU time in a better way than AmigaOS does ?

Thanks,

Martin


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Laser 
Re: Classic Amiga News! - Executive now freeware!
Posted on 11-Jul-2005 21:51:16
#5 ]
Regular Member
Joined: 19-Jul-2003
Posts: 333
From: Norwich, UK

Oh yes! I remember trying Executive years ago and being skeptical whether it would help. After about a week I decided I couldn't be without it. Unfortunately the package was fairly old at that time and there was no response from the contact email address.

Now I can try all the fancy scheduler options! Many thanks to the author!

What about OS4? I remember reading the intent to put an adaptive scheduler into OS4 - Is it still going to be ready for the release? Has it been done in Update3?

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Laser 
Re: Classic Amiga News! - Executive now freeware!
Posted on 11-Jul-2005 21:55:23
#6 ]
Regular Member
Joined: 19-Jul-2003
Posts: 333
From: Norwich, UK

Quote:
So what does it exactly do ?

It plays around with the task switching system in Exec. The most significant effect is that it can dynamically change the priority of a running task to ensure programs don't lock up when a higher priority program hogs the CPU.

The effect is to have a machine that is very responsive all the time!

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Richi 
Re: Classic Amiga News! - Executive now freeware!
Posted on 11-Jul-2005 22:49:46
#7 ]
Regular Member
Joined: 25-Dec-2004
Posts: 158
From: Unknown

It's great!
The best task method is: Feedback!
No doubt!

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Amigaz 
Re: Classic Amiga News! - Executive now freeware!
Posted on 11-Jul-2005 23:04:48
#8 ]
Regular Member
Joined: 28-Mar-2005
Posts: 202
From: Sweden

Sounds cool

where can one d/l this software...Aminet?


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PEB 
Re: Classic Amiga News! - Executive now freeware!
Posted on 11-Jul-2005 23:34:36
#9 ]
Cult Member
Joined: 8-Mar-2003
Posts: 502
From: Unknown

Has anyone tested Executive on OS4? Any improvements?

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Moxee 
Re: Classic Amiga News! - Executive now freeware!
Posted on 12-Jul-2005 0:46:13
#10 ]
Team Member
Joined: 20-Aug-2003
Posts: 6291
From: County Yakima, WA State, USA

Quote:

Please visit http://www.geocities.com/hapablap2002/apa/ to obtain the key file and executive archive.


Where is the archive? I don't see it on this page.

_______________________________________

Moxee


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Samwel 
Re: Classic Amiga News! - Executive now freeware!
Posted on 12-Jul-2005 1:18:49
#11 ]
Elite Member
Joined: 7-Apr-2004
Posts: 3396
From: Sweden

@PEB

Would it actually even work? Now that we have the new Exec..

Remember that this is after all just a patch. It should never be run
on any other OS version than it was intended to by the author.

Last edited by Samwel on 12-Jul-2005 at 01:21 AM.


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Foody 
Re: Classic Amiga News! - Executive now freeware!
Posted on 12-Jul-2005 3:01:21
#12 ]
Super Member
Joined: 3-Sep-2003
Posts: 1467
From: Canada

That is really nice of him to donate the software but I feel bad really bad, we should pay to support his effort and not take advantage of his kindess and take the software for free. How are we going to lure software developers if Amiga's software are free?

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Jacken 
Re: Classic Amiga News! - Executive now freeware!
Posted on 12-Jul-2005 7:33:01
#13 ]
Regular Member
Joined: 13-Jul-2004
Posts: 150
From: Glimma / Sweden

@Moxee
Go to Aminet...

@thread

I've also used Executive before and it's a nice piece of work...Tried to get it registered for a long time ago..But i never got any answer..


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Varthall 
Re: Classic Amiga News! - Executive now freeware!
Posted on 12-Jul-2005 8:04:43
#14 ]
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Joined: 17-Feb-2004
Posts: 1552
From: Up Rough

Pity that I don't use anymore my A1200 since I got my A1, I'd like to see it in action.

Varthall


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EntilZha 
Re: Classic Amiga News! - Executive now freeware!
Posted on 12-Jul-2005 10:31:23
#15 ]
OS4 Core Developer
Joined: 27-Aug-2003
Posts: 1679
From: The Jedi Academy, Yavin 4

Quote:
What about OS4? I remember reading the intent to put an adaptive scheduler into OS4 - Is it still going to be ready for the release? Has it been done in Update3?


It was never announced for OS4.0. The scheduler will be updated in 4.1, as has been said before.


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EntilZha 
Re: Classic Amiga News! - Executive now freeware!
Posted on 12-Jul-2005 10:33:22
#16 ]
OS4 Core Developer
Joined: 27-Aug-2003
Posts: 1679
From: The Jedi Academy, Yavin 4

Quote:
Would it actually even work? Now that we have the new Exec..


No, it wouldn't.


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Laser 
Re: Classic Amiga News! - Executive now freeware!
Posted on 12-Jul-2005 12:46:58
#17 ]
Regular Member
Joined: 19-Jul-2003
Posts: 333
From: Norwich, UK

Quote:
It was never announced for OS4.0. The scheduler will be updated in 4.1, as has been said before.

Hmmm. I know you have a million and one things that many would consider more important, but to me this is a significant feature that seriously affects useability. The Amiga multitasking model, while reasonable, does cause irritating situations. For example, running a CPU-hungry app and then wanting to run something else: You either have to make sure that you set it to a low priority before you started, or that the tools to change the priority are set to load and run at a higher priority. Otherwise you just have to sit and wait...

Especially considering the all new Exec and the extra CPU power, this would be disappointing for a new OS.

Still, roll on OS4.1 !!

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Robert17 
Re: Classic Amiga News! - Executive now freeware!
Posted on 12-Jul-2005 13:01:48
#18 ]
Member
Joined: 12-Apr-2005
Posts: 96
From: Norwich, England

Where can we get the actual Archive? I've never used Executive before, but I have noticed the effects that it is meant to remedy :)

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VooDoo 
Re: Classic Amiga News! - Executive now freeware!
Posted on 12-Jul-2005 13:06:38
#19 ]
Super Member
Joined: 16-Jun-2003
Posts: 1495
From: Croatia

Orginal Execute archi you can download from Aminet...and key you can dl here -> http://www.geocities.com/hapablap2002/apa/ :)


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EntilZha 
Re: Classic Amiga News! - Executive now freeware!
Posted on 12-Jul-2005 15:17:04
#20 ]
OS4 Core Developer
Joined: 27-Aug-2003
Posts: 1679
From: The Jedi Academy, Yavin 4

Quote:
Hmmm. I know you have a million and one things that many would consider more important, but to me this is a significant feature that seriously affects useability.


Indeed.. mostly in negative ways.

Changing the scheduling isn't that easy. The scheduling on AmigaOS has some side effects where it relies on the round-robin scheme, also in early boot.

Besides, my personal experiences with Executive were rather mixed. It worked fine when running two CPU hungry tasks, but with a single task active, it was actually slower than the original scheduler by some 8 %.


Quote:
Especially considering the all new Exec and the extra CPU power, this would be disappointing for a new OS.


When you look at the features that are actually implemented in OS4 now, the scheduler is a pretty minor thing. Overall, the scheduler works as is. It only lacks in areas where you run mutiple CPU-hungry processes in parallel, and that's rather the exception than the rule.

Changing the scheduler can be a sure way to shoot yourself in the foot. There's a big difference between writing a patch that, if you realize that it fails you just remove, or integrating this functionality into the OS itself.

No, I'd rather make changes when they are needed, not just to put another item on a feature list. The current scheduling actually works, and I see no overwhelming reason to take chances there.

Other parts are much more vital. For example, what I really wonder is why nobody ever complained about to old stupid memory system. I mean, they use stupid singly-linked list as the core of the memory system, which is subject to all sort of fragmentation. I included test code into the memroy allocation in OS4 to see how fragmented memory is becoming. And believe it or not, when Workbench comes up, there are already 47000 allocations < 2KB from the GLOBAL memory list (not from pools). The public memory list easily grows to about 8000 nodes.
Therefore, we're putting a lot work into a new memory system that will make memory allocations several magnitudes more efficient, while at the same time reducing fragmentation (this is not yet in update3, if you're wondering). That is IMHO where the real workload now lies.

As I said, the scheduler will be replaced completely in 4.1, to allow for different things like SMP, "pluggable" schedulers, real-time scheduling, global or local thread scheduling etc. This is something that needs lots of consideration and will certainly not be a quick-shot hack to be replaced later. Most of all, it will need deep integration into the system. For example, now public exec.library fields like "ThisTask", "TaskReady", "TaskWaiting" etc will simply vanish. However, a lot of code still accesses these (especially ThisTask). Rushing things would break compatibility.


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