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PhantomInterrogative 
Re: Trevor's Amiga Blog
Posted on 25-Aug-2016 11:42:13
#801 ]
Cult Member
Joined: 10-Sep-2004
Posts: 749
From: The Interrogative Lair

@kamelit0

Trevor's trip to Brussels has nothing to do with sprouts or Hyperion. He is getting a Vegemite sandwich from someone with muscles.

_________________
I sold my SAM460ex lite... waiting for money to buy the X5000... or Amiga Reloaded... or an A1222... and OS4.2 FE update 9000

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aracnet 
Re: Trevor's Amiga Blog
Posted on 25-Aug-2016 13:41:49
#802 ]
Member
Joined: 4-Feb-2004
Posts: 84
From: Unknown

@TrevorDick

Sir are there any possiblity to have OS 4.1 Classic for Amiga Vampire II

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tlosm 
Re: Trevor's Amiga Blog
Posted on 25-Aug-2016 14:40:43
#803 ]
Elite Member
Joined: 28-Jul-2012
Posts: 2575
From: Amiga land

@aracnet

About Os4 and Os 4 portings is need to ask to Hyperion and not Trevor and Aon

Last edited by tlosm on 25-Aug-2016 at 02:41 PM.

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NutsAboutAmiga 
Re: Trevor's Amiga Blog
Posted on 25-Aug-2016 17:05:49
#804 ]
Elite Member
Joined: 9-Jun-2004
Posts: 10951
From: Norway

@Hypex

Quote:
I would have thought unrolling loops would have negative effect on the cache. Being they are of limited size and you want to execute inside it. Okay it's not exactly down to the bare basics of a 68010 one op loop mode but with multitasking and CPU's made to loop dynamically unrollng would seem unnecessary.


But there is lot more going on, you increment a value, you check if value is less or equal, you jump,
besides the cache is bigger this days, so unrolling loops is no problem.

http://lifeofliveforit.blogspot.no/search/label/Optimizing

In my chart I saved about 100ms, that’s not bad.

Last edited by NutsAboutAmiga on 25-Aug-2016 at 05:43 PM.

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Tomppeli 
Re: Trevor's Amiga Blog
Posted on 25-Aug-2016 21:42:41
#805 ]
Super Member
Joined: 18-Jun-2004
Posts: 1629
From: Home land of Santa, sauna, sisu and salmiakki

@aracnet

Quote:
Sir are there any possiblity to have OS 4.1 Classic for Amiga Vampire II

Anybody volunteering to do the job ?

@trevor
Or anybody have volunteered already ?

_________________
Rock lobster bit me, so excuse me. If you'll plan to deal with me, be serious !
X1000 + AmigaOS4.1 FE. Be authentic.
"Anyone can build a fast CPU. The trick is to build a fast system." -Seymour Cray

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bennymee 
Re: Trevor's Amiga Blog
Posted on 25-Aug-2016 22:19:42
#806 ]
Regular Member
Joined: 19-Aug-2003
Posts: 438
From: Netherlands

@aracnet

Isn't it easier to put a P1022 SOC on a Vampire like board ?

OS4.1 development is not going rocketfast 'at the moment' ;)

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BoingBear 
Re: Trevor's Amiga Blog
Posted on 26-Aug-2016 4:43:04
#807 ]
Regular Member
Joined: 28-Oct-2015
Posts: 138
From: Unknown

@bennymee

Quote:

bennymee wrote:
@aracnet

Isn't it easier to put a P1022 SOC on a Vampire like board ?

OS4.1 development is not going rocketfast 'at the moment' ;)


Don't you think that it would be better to just talk Hyperion into updating AmigaOS3.9 with some of the best features found in AmigaOS4.1FE, or better than that, create a bounty for some of our excellent 3rd party developers, to add new features to AmigaOS3.9, or AROS for 68k, for systems with Vampire/Apollo accelerators, and eventually Apollo stand alone FPGA boards/systems.

The pace of development for AmigaOS4.x by Hyperion is not likely to increase substantially over the next several years, unless funded by outside sources. Even if more funding was available, it is doubtful that Hyperion is capable of finding the necessary manpower to speed up development of AmigaOS4.x by much. That seems to be a sad fact of Amiga life, with no bright light ahead, to look forward to improvement. It is more likely that we will continue to be forced to wait years for small improvements to AmigaOS4.x to be completed, accompanied by more false promises, and overly optimistic predictions by Solie, or some other Hyperion volunteer (is anyone getting paid these days), if Steve finally gets too fed up and gives up on managing the development of AmgiaOS4.x.

Sorry for the doom & gloom, but I firmly believe that Vampire and Classic Amiga users are much better off sticking with AmigaOS3.x, or switching to AROS for 68k, than they would be if they depend on Hyperion for anything.

Last edited by BoingBear on 26-Aug-2016 at 04:44 AM.

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klx300r 
Re: Trevor's Amiga Blog
Posted on 26-Aug-2016 4:46:21
#808 ]
Elite Member
Joined: 4-Mar-2008
Posts: 3401
From: Toronto, Canada

@PhantomInterrogative

Quote:

PhantomInterrogative wrote:
@kamelit0

Trevor's trip to Brussels has nothing to do with sprouts or Hyperion. He is getting a Vegemite sandwich from someone with muscles.


ah and here I was thinking its because its where women go and men plunder

_________________
____________________________
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! My Master Miggies- Amiga 1000 & AmigaOne X1000 !
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Rob 
Re: Trevor's Amiga Blog
Posted on 26-Aug-2016 7:02:40
#809 ]
Elite Member
Joined: 20-Mar-2003
Posts: 5746
From: S.Wales

@bennymee

Quote:
Isn't it easier to put a P1022 SOC on a Vampire like board ?


Gunnar has previously said they will never build PowerPC hardware.

There's little point in producing a Vampire card with a PowerPC anyway. It makes more sense to build a PowerPC card with a pass-through the same as with the Mediator. That way you could use it with everything from a basic 4MB ram card up to a 68060 or Vampire card.

The T1020 would be a better choice if starting a new design now. It has the same E5500 core as the X5000 while offering clock speeds between 1.2 and 1.5Ghz and and is similarly priced to the P1022 at 1.2Ghz.

P1022 and T1020 have onboard Ethernet and SATA so it would just need 1 PCIe x16 slot for video and a PCI x1 slot for audio.

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Hypex 
Re: Trevor's Amiga Blog
Posted on 26-Aug-2016 16:03:11
#810 ]
Elite Member
Joined: 6-May-2007
Posts: 9370
From: Greensborough, Australia

@NutsAboutAmiga

Quote:
But there is lot more going on, you increment a value, you check if value is less or equal, you jump,


There is but for simple loops it should be possible to fit it inside the cache and branch back without penalty.

Of course things are usually not that simple. Except for manually duplicating a loop in code the compiler doesn't seem to help much.

Interesting tests you did. Yes unnecessary functions would cost. Don't know if a static declared function would help. Nor if C supports sub-functions local to a function. Kind of like a subroutine and callable like a JSR or BSR.

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NutsAboutAmiga 
Re: Trevor's Amiga Blog
Posted on 26-Aug-2016 20:30:45
#811 ]
Elite Member
Joined: 9-Jun-2004
Posts: 10951
From: Norway

@Hypex


Quote:
There is but for simple loops it should be possible to fit it inside the cache and branch back without penalty.


that's clearly not the case, doing the x4 unroll is worth it if your using –O3 flag. But no point in going overboard on it, unrolling it more than 4 times, the benefits are less then effort needed.

The compiler optimized opcodes so that out of order execution can be done, you need to understand the how CPU execute opcodes to do a better job then C compiler, that’s a job for exports, people like me and you need to spend a lot time decompiling and testing to figure out optimal combinations.

Quote:
Don't know if a static declared function would help.


static just means the function is private to object file, it won't do anything.

Anyway, functions have local variables. Local variables need stack space, local variables has to initialized, and when the function exists the stack has exposed off.
Macros is just text replacement, it does not add any local variable, no extra stack usage, no need to expose of the stack when It is over.

Higher optimization flags are batter at only backing up registers that being used by the function.

Last edited by NutsAboutAmiga on 26-Aug-2016 at 08:52 PM.
Last edited by NutsAboutAmiga on 26-Aug-2016 at 08:34 PM.
Last edited by NutsAboutAmiga on 26-Aug-2016 at 08:34 PM.
Last edited by NutsAboutAmiga on 26-Aug-2016 at 08:32 PM.

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Spectre660 
Re: Trevor's Amiga Blog
Posted on 17-Oct-2016 22:34:48
#812 ]
Elite Member
Joined: 4-Jun-2005
Posts: 3714
From: Unknown


Down the rabbit hole

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Rob 
Re: Trevor's Amiga Blog
Posted on 17-Oct-2016 23:32:37
#813 ]
Elite Member
Joined: 20-Mar-2003
Posts: 5746
From: S.Wales

@Spectre660

I reckon Evilbot looted the car. A similar thing happened at Revision last year.

https://www.youtube.com/watch?v=ZD7xFcEedXs

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klx300r 
Re: Trevor's Amiga Blog
Posted on 18-Oct-2016 0:29:17
#814 ]
Elite Member
Joined: 4-Mar-2008
Posts: 3401
From: Toronto, Canada

ok YES now that the X5K is OFFICIALLY released let's finally start seeing some benchmark threads



@ Trevor

hmm that X5000 sticker on the case.....don't forget about us X1000 users as I'm pretty sure I'm not the only one that wants one for my X1000

_________________
____________________________
c64-2sids, A1000, A1200T-060@50(finally working!),A4000-CSMKIII
! My Master Miggies- Amiga 1000 & AmigaOne X1000 !
mancave-ramblings
X1000 I BELIEVE

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TrevorDick 
Re: Trevor's Amiga Blog
Posted on 18-Oct-2016 12:11:00
#815 ]
Elite Member
Joined: 30-Dec-2004
Posts: 2651
From: Wellington

@klx300r

Quote:
.don't forget about us X1000 users as I'm pretty sure I'm not the only one that wants one for my X1000


There has always been an AmigaOne X1000 badge on the official X1000 case (bought from A-EON or AmigaKit.

TrevorD

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No, I don't need no reason, I'm just breezin'

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tlosm 
Re: Trevor's Amiga Blog
Posted on 18-Oct-2016 14:16:51
#816 ]
Elite Member
Joined: 28-Jul-2012
Posts: 2575
From: Amiga land

@klx300r

Quote:
ok YES now that the X5K is OFFICIALLY released let's finally start seeing some benchmark threads


Benchmarks are really relative ...
example sysmon and ragemem gave a totally wrong value compared linux.

Apps only gave a better realworld cpu performances...
eg: quake cpu rendering, emulators and quake3 too ... but in this case is much faster on linux compared amigaos because warp3d i think.


Last edited by tlosm on 18-Oct-2016 at 02:17 PM.

_________________
I love Amiga and new hope by AmigaNG
A 500 + ; CDTV; CD32;
PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB;
MacBook Pro Retina I7 2.3ghz;
#nomorea-eoninmyhome

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pavlor 
Re: Trevor's Amiga Blog
Posted on 18-Oct-2016 14:33:26
#817 ]
Elite Member
Joined: 10-Jul-2005
Posts: 8900
From: Unknown

@tlosm

For most of us comparison with other OS4 hardware is more important than Linux benchmarks. However, this deserves own thread.

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tlosm 
Re: Trevor's Amiga Blog
Posted on 18-Oct-2016 14:54:01
#818 ]
Elite Member
Joined: 28-Jul-2012
Posts: 2575
From: Amiga land

@pavlor

belive me all in any way Os4 on x5000 is much faster than the best amigaos hw

Last edited by tlosm on 18-Oct-2016 at 02:54 PM.

_________________
I love Amiga and new hope by AmigaNG
A 500 + ; CDTV; CD32;
PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB;
MacBook Pro Retina I7 2.3ghz;
#nomorea-eoninmyhome

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klx300r 
Re: Trevor's Amiga Blog
Posted on 18-Oct-2016 15:06:20
#819 ]
Elite Member
Joined: 4-Mar-2008
Posts: 3401
From: Toronto, Canada

Quote:

TrevorDick wrote:
@klx300r

Quote:
.don't forget about us X1000 users as I'm pretty sure I'm not the only one that wants one for my X1000


There has always been an AmigaOne X1000 badge on the official X1000 case (bought from A-EON or AmigaKit.

TrevorD


well mine is 'official' bought from Amigakit as well as my Nemo X1K parts and my sticker only says AmigaONE but I would really like a sticker that says X1000 like the X5000 sticker you show in your blog and I've seen on other X5K cases.

_________________
____________________________
c64-2sids, A1000, A1200T-060@50(finally working!),A4000-CSMKIII
! My Master Miggies- Amiga 1000 & AmigaOne X1000 !
mancave-ramblings
X1000 I BELIEVE

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klx300r 
Re: Trevor's Amiga Blog
Posted on 18-Oct-2016 15:14:15
#820 ]
Elite Member
Joined: 4-Mar-2008
Posts: 3401
From: Toronto, Canada

Quote:

tlosm wrote:
@klx300r

Quote:
ok YES now that the X5K is OFFICIALLY released let's finally start seeing some benchmark threads


Benchmarks are really relative ...
example sysmon and ragemem gave a totally wrong value compared linux.

Apps only gave a better realworld cpu performances...
eg: quake cpu rendering, emulators and quake3 too ... but in this case is much faster on linux compared amigaos because warp3d i think.




Gigi we've been through this many times before & I still don't care about Linux ! The only time I care about Linux is is when it helps our devs create necessary drivers & stuff for guess what OS? I care about AMIGA OS usage & benchmark results

_________________
____________________________
c64-2sids, A1000, A1200T-060@50(finally working!),A4000-CSMKIII
! My Master Miggies- Amiga 1000 & AmigaOne X1000 !
mancave-ramblings
X1000 I BELIEVE

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