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Author Topic: OS3.9 boots with very low chip mem left - why? - ALL SORTED  (Read 6427 times)

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Offline AstralTopic starter

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OS3.9 boots with very low chip mem left - why? - ALL SORTED
« on: August 03, 2008, 01:29:46 AM »
I've done a fresh install of OS3.9 on my A1200. I have a BlizzardPPC card with 256Mb Fast RAM.

OS3.9 boots with only about 8000bytes of chip mem left - meaning nothing can really be opened. The only extra software on top of this fresh OS3.9 install is the FASTATAMk-III driver.

I seem to remember a "use fast mem first" type of command, but can't find anything like it. I've installed OS3.9 before and not had this issue...
 

Offline Nearly-Right

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Re: OS3.9 boots with very low chip mem left - why?
« Reply #1 on: August 03, 2008, 01:43:40 AM »
I think you are looking for the Prefs drawer and mean the "Workbench Prefs" settings which allows you to use Other Memory (FAST-RAM) for graphics loading in preference to Chip-RAM, but if you have gone to all that expense with a PPC card you might as well get a GFX card to see it in 24/32 bit colour, don't you think ;-)
 

Offline jmbattle

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Re: OS3.9 boots with very low chip mem left - why?
« Reply #2 on: August 03, 2008, 01:52:13 AM »
If you do not have a graphics card, the OS will use chip memory for storing images.  So if you use a large resolution with lots of colours (arguably impossible under AGA), a colourful wallpaper, PNG icons, and a snazzy VisualPrefs theme, you may find the amount of chip memory reduced considerably.

8000 bytes remaining is rather excessive however - that sounds more like the processor memory is not being used at all for any tasks.

I would recommend using FBlit, which should improve the speed of graphics redraws, while also forcing any graphics related tasks to use fast memory (where possible).

Cheers,
James
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Offline zipper

Re: OS3.9 boots with very low chip mem left - why?
« Reply #3 on: August 03, 2008, 10:58:21 AM »
you could use http://main.aminet.net/pub/aminet/util/boot/startmem.lha
it shows where your memory is consumed during boot.
 

Offline Lemmink

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Re: OS3.9 boots with very low chip mem left - why?
« Reply #4 on: August 03, 2008, 12:26:37 PM »
Simply go to prefs -> workbench for store graphics in : select "other memory"
Not really interesting, but it`s there.
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Offline weirdami

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Re: OS3.9 boots with very low chip mem left - why?
« Reply #5 on: August 03, 2008, 02:05:43 PM »
I wonder if the 2MB chip RAM limit is becoming the Amiga equivalent to the 64KB limit on IBM's. So, choosing "other memory" is like using "extended memory".  :cry:
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Offline AstralTopic starter

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Re: OS3.9 boots with very low chip mem left - why?
« Reply #6 on: August 20, 2008, 10:37:20 AM »
Still having issues with this. The program chewing all the chip mem is the FastATA MkIII driver. With the driver not running I have around 1,900,000bytes of chip mem. Once the ATA driver is run I have about 9000 bytes left. I've tried all kinds of "use fast mem first" settings in workbench and with countless aminet patches, along the lines of those recommended.

Surely I can't be the only one with this problem, and the solution can't really be that hard. Is there a syntax I can add to the ATA driver command when first running it that'll force it to use fast mem? Any more suggestions?
 

Offline TiredOLife

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Re: OS3.9 boots with very low chip mem left - why?
« Reply #7 on: August 20, 2008, 11:07:48 AM »
How big is your hard drive and how many partitions do you have?
 

Offline AstralTopic starter

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Re: OS3.9 boots with very low chip mem left - why?
« Reply #8 on: August 20, 2008, 11:27:03 AM »
Main HD 4g/3 partitions. Secondary drive 40g/2 partitions. 1 dvd burner as well. I don't consider this excessive...
 

Offline TiredOLife

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Re: OS3.9 boots with very low chip mem left - why?
« Reply #9 on: August 20, 2008, 12:43:05 PM »
No, I agree, you should be fine with that.
I assume you are using the latest FastATA drivers?
 

Offline AstralTopic starter

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Re: OS3.9 boots with very low chip mem left - why?
« Reply #10 on: August 21, 2008, 10:32:26 AM »
The unit is only about 3 weeks old and I'm using the software that came with it. To double check, where can the latest drivers be gained from?
 

Offline krize

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Re: OS3.9 boots with very low chip mem left - why?
« Reply #11 on: August 21, 2008, 02:09:11 PM »
From Elbox, I think you have to mail them or be on the mailing list.. (or someone on irc or here who will help you :))
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Offline AstralTopic starter

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Re: OS3.9 boots with very low chip mem left - why?
« Reply #12 on: August 23, 2008, 12:34:04 AM »
I've checked. I am using the latest drivers. Any other suggestions. I might email elbox to see what they say?
 

Offline x303

Re: OS3.9 boots with very low chip mem left - why?
« Reply #13 on: August 23, 2008, 05:49:14 PM »
Maybe you can decrease the buffersize for each partition to 100-150 or so. If they're set too high, it eats loooots of mem too. And turn off programs like mem or mem32 and so. Hope this solution works.

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Offline yogisumo

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Re: OS3.9 boots with very low chip mem left - why?
« Reply #14 on: August 23, 2008, 09:29:43 PM »
Quote

weirdami wrote:
I wonder if the 2MB chip RAM limit is becoming the Amiga equivalent to the 64KB limit on IBM's. So, choosing "other memory" is like using "extended memory".  :cry:



Don't think so..  Chip ram is more like the equivalent of vram on your gfx card that you can also use for regular procesing if you don't have any other ram...