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Author Topic: Is there any real use for 128MB on classic Amiga?  (Read 25577 times)

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Offline Britelite

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Re: Is there any real use for 128MB on classic Amiga?
« on: November 28, 2012, 09:47:46 AM »
Quote from: ChaosLord;716703

So anyway a bunch of ppl got together and raced our startup times.
Lots of interestng times on different configs.  To make a long story short I show you the 2 fastest times:
Amiga 1200      50Mhz 060 old slow ram old SCSI hard drive 15 seconds
PC multicore  3100Mhz Winuae new fast ram new IDE UDMA hard drive 12 seconds.

I was really expecing WinUAE to go faster than that!  C'mon its got SUPERFAST DDR3 RAM and superfast brand new high density drive and superfast brand new hard drive controller.

There's of course also the possibility that your WinUAE is badly configured ;)
 

Offline Britelite

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Re: Is there any real use for 128MB on classic Amiga?
« Reply #1 on: November 28, 2012, 10:29:45 AM »
Quote from: ChaosLord;716706
Can you give an example of "badly configured" ?

Where is the "Badly Configured" / "Properly Configured" option located in WinUAE?

That's impossible to answer, considering I don't know what you're trying to emulate. But assuming you're aiming for maximum speed, are you using 040 emulation with JIT enabled and disabled cycle exact chipset emulation?
 

Offline Britelite

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Re: Is there any real use for 128MB on classic Amiga?
« Reply #2 on: November 28, 2012, 11:06:53 AM »
Quote from: ChaosLord;716712

Why did you say 040 instead of 020 or 030 or 060?

Most ppl have their cpu set to 020 or 030 in WinUAE for maximum compatibility and speed.  So why do you suggest 040?

At least in the past 040 emulation was the best option when developing for the 060, might have changed since.

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 Without JIT WInUAE runs at the speed of a 1Mhz a500 if I am lucky.  Less if I am unlucky.  So I -always- have JIT on all the time.  Turning it off is unbearable.

Well, on my Pentium4 running stuff without JIT is surely slow, but not 1MHz A500 slow :)
I also use JIT all the time, and it makes a huge difference for me, even on my old netbook. The speeds I get are way beyond anything an 060 Amiga can produce, including diskaccess. Which is why I wondered if you have it turned on, considering your loadingtimes don't differ that much.

May I ask what your host system is?
 

Offline Britelite

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Re: Is there any real use for 128MB on classic Amiga?
« Reply #3 on: November 28, 2012, 12:02:38 PM »
Quote from: ChaosLord;716717
Can you run the timing test on your system and lemme know what you get?

Sure, will do that later today as soon as I get home.
 

Offline Britelite

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Re: Is there any real use for 128MB on classic Amiga?
« Reply #4 on: November 28, 2012, 04:26:15 PM »
Quote from: ChaosLord;716717
Can you run the timing test on your system and lemme know what you get?

Ok, now I've tried it

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1. unlha it. (time how long this takes)  This is just for fun since someone mentioned it earlier.

Unpacking took around 3:30min

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2. Run the game.  This means double click its icon and start your stopwatch.  stop the stopwatch when the blackish screen comes up that allows you to enter your wizard names and teams.  This is for historial purposes.  Just interesting.  The first time the game runs, all the audio in the game must be decompressed.  Its thousands of files, loads of disk thrashing.

Took 3:10min

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4. Double click the game icon and start your stopwatch.  When the black screen with the wizard names and teams comes up. stop the stopwatch.  This is the meaninful test because this is what the player experiences every time he loads the game.  All that other stuff was just a once in a lifetime thing.

After installation and running the first time this took about 5 seconds. After I reset WinUAE and tried it a few times it took 5-8 seconds.

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Be sure to say the hardware you used. what kind of Drive, HD?  what size?  SSD?  Is ur drive on SATA 300 OR SATA 600 or PATA ?  How many Ghz you have?  How many cores?  the usual stuff.

My machine is an old Pentium4, ~3GHz and single core. Old regular (not SSD) 160GB SATA harddrive which hasn't been defragmented in ages. 5 year old WinXP installation and WinUAE 2.4.1
 

Offline Britelite

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Re: Is there any real use for 128MB on classic Amiga?
« Reply #5 on: November 29, 2012, 07:00:14 AM »
Quote from: ChaosLord;716777
@BriteLite
Interesting that u got faster times than the other guys....

Was your AGA emu on?

Yes, AGA emulation is turned on

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Was your PAULA emu on?

Of course, no point in playing games or watching demos without sound ;)

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Did the gfx look right?

Yes, they looked fine

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Music sounded ok?

The music sounded good

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I wonder if yours loaded faster than his because you had 040 set.  020 and 030 (+FPU) are supposed to be fastest.... :confused:

If 040 is faster then 060 should be even fastererer :)

The 060 option doesn't speed up anything, as it really doesn't emulate a 060.

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What filessystem did u run the game from?

I've mounted a directory in Windows as a harddrive (instead of using a hardfile), so that might actually speed up loading times.

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Did u unlha the game from within your amiga?

Yes, I used lha 2.12

I can share my WinUAE configuration-file, if you want to try it yourself.
 

Offline Britelite

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Re: Is there any real use for 128MB on classic Amiga?
« Reply #6 on: November 29, 2012, 08:02:56 PM »
Quote from: ChaosLord;716866
Based on the time to unpack all the audio files your 3000Mhz pc runs at the speed of a 100Mhz 060.  Or you could say it runs at about the speed of a 50Mhz 060 which has been connected to 50Mhz SRAM.

You shouldn't base your assumptions of speed on anything related to diskaccesses. CPU-operations are WAAAAAY beyond anything an 060 can achieve (which usually leads to disappointments when an demoeffect I'm coding is running smoothly in WinUAE and runs like crap on my 060 Amiga :)

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P.s. what is your frameskip set to?

No frameskips