OS3.9 boots with very low chip mem left - why? - ALL SORTED

[yogisumo]

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...

[Astral]

@x303 - that was it - thankyou. The buffers were set at 600 units for the partitions. I read the OS3.9 manual which recommends 30-50 buffers per partition. I changed the values, rebooted, and volia...1.8Mb of chip mem free...

[Piru]

No, it really is not sorted. In fact, there is something horribly wrong: Currently the filesystem buffers go to chip memory. That is horrible waste and it slows down disk accesses a lot.

It would be interesting to know what the bufmemtype is set to.

[Astral]

The buffmemtype is set to "512".

[Astral]

Just did a net search. Is the following correct...bufmemtype 0,1=Any, 2,3=Chip, 4,5=Fast RAM?

[Astral]

Changed the bufmemtype for all partitions to 5. There is now 2,02x,xxx bytes of chip mem on startup, which is about 1.9xmb. There is a bit of speed up as well.

Thanks Piru...

[Piru]

Excellent, now it's really solved :-)

Now you can add more buffers for those partitions, too, as it will now use the fastmem (which you have plenty).

[kreciu]

Anybody can tell me where I can find a mountlist for particular partition? So I can edit it (the same like for the ZIP or CD mountlist?) Where is it?

Thank you!

[Kin-Hell]

Astral wrote:
Changed the bufmemtype for all partitions to 5. There is now 2,02x,xxx bytes of chip mem on startup, which is about 1.9xmb. There is a bit of speed up as well.

Thanks Piru...

Where "Exactly" did you change all the Partitions bufmemtype value to 5?

[Astral]

Kin-Hell wrote:
Where "Exactly" did you change all the Partitions bufmemtype value to 5?

I'd have to bootup to verify "exactly" where it was done. From memory it was in OS4, using Partition Wizard, in the Partition Details section...or something along those lines. OS3.9 would probably have a similar section in HDToolBox. See how you go with this...I can always look a bit further for you if you need...

[orange]

I don't recall that in HDToolBox, is it maybe DMAMask?

[kreciu]

Kin-Hell wrote:

Where "Exactly" did you change all the Partitions bufmemtype value to 5?

I have EXACTLY the same question (I even open topic for that...), and I didn't get explanation even after asking on PM .

I really would like to change that for ma HDD. PLEASE.

I looked in HDToolBox inside and out... nothing.

[Kin-Hell]

Astral wrote:

Kin-Hell wrote:
Where "Exactly" did you change all the Partitions bufmemtype value to 5?

I'd have to bootup to verify "exactly" where it was done. From memory it was in OS4, using Partition Wizard, in the Partition Details section...or something along those lines. OS3.9 would probably have a similar section in HDToolBox. See how you go with this...I can always look a bit further for you if you need...

...But your Post Title say OS3.9, not OS4.0??

Where in OS3.9 HDToolBox ??

Chip Mem is not even in the equation under OS4.

Your post is starting to sound like a right pile of Bullsh!t!

Can you clear this up please, for all or sakes!! :-?

[kreciu]

Kin-Hell wrote:

Your post is starting to sound like a right pile of Bullsh!t!

Can you clear this up please, for all or sakes!! :-?

You got this impresion to?

I see some posts, like: Two guys talks to each other... One have a problem... other is "trying" to solve it. After 8-10 post "problem is solved" so I ask... about the same.

But I will newer get the answer for this problem "they just solved it". Is it a secret or something?  :-?

[kreciu]

Astral wrote:
Changed the bufmemtype for all partitions to 5. There is now 2,02x,xxx bytes of chip mem on startup, which is about 1.9xmb. There is a bit of speed up as well.

Thanks Piru...

ASTRAL can you write HOW did you do that? I'm waiting here like 10 days for that.

Magic?

[Astral]

You're all right, this thread is all part of a big conspiracy  :roll:

"Exactly" how I changed the bufmemtype is like this: Using OS4, running Media Toolbox, I selected the hard drive I wished to edit. I clicked on "Edit Partitions and Filesystems". I selected the first partition and clicked on "Select Filesystem/Edit Details". I then changed the "bufmemtype" to 5. I then selected the remaining 2 partitions and changed the "bufmemtype" in the same way. I then saved the config and closed the program. I then rebooted into OS3.9 to have the lost chip mem back.

I think the problem I had can be traced back to setting up the partitions using OS4, not OS3.9. When I have setup partitions in the past using OS3.9 I haven't had any memory issues. However, prior to installing OS3.9 this time, the partitions were setup using OS4. It looks like OS4 by default sets the bufmemtype to a setting that is not ideal - that is to use chip mem for the buffers. I'd say that OS3.9 by default sets that bufmemtype to 5, which is fast memory, which is ideal...and hence there shouldn't be a problem and hence need to attempt to change the bufmemtype if partitions are setup under OS3.9.

I just had a look a minute ago in HDToolBox under OS3.9. I looked around and found no similar field to bufmemtype. Is it changeable using OS3.9? I don't know.

I have noticed the "bufmemtype" field in some mountlists before. I see no reason why this can't be edited to change the bufmemtype for a device with a mountlist.

I hope this helps...