gmane.os.netbsd.ports.mac68k

Re: Using pkgsrc with low RAM

John Klos — 2013-05-11T17:07:43

Hi,


I have an almost identical SIMM. I just trimmed the first two rows of the 
fingers on the heat sink:

http://www.ziaspace.com/~john/boobookitty/Pages/11.html

John

Re: Using pkgsrc with low RAM

James Stocks — 2013-05-11T17:02:33


If anyone's keeping score, the 128MB SIMM arrived and it is working.  The only problem: it's too tall to clear the heatsink on the 68040 by a few mm.  I ran it without the heatsink for a few minutes just to test and it wasn't getting particularly hot, but I expect I'll need to rig up a smaller heatsink from my box of bits.  Especially before I ask it to chew on pkgsrc again.  But, so far so good!

456MB RAM in a Qadra 650, no hardware mods, only NetBSD needed

Karsten Kruse — 2013-04-13T14:12:32

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Hi,

i thought you might be interested in this:

<--QUOTE-->
Using 128MB SIMMs on NetBSD with a stock ROM, stock everything centris
650:

Using tmpfs:
Code:
c650# df -hl
Filesystem         Size       Used      Avail %Cap Mounted on
/dev/sd0a          3.7G       749M       2.8G  20% /
kernfs             1.0K       1.0K         0B 100% /kern
ptyfs              1.0K       1.0K         0B 100% /dev/pts
procfs             4.0K       4.0K         0B 100% /proc
tmpfs              1.3G       400M       936M  29% /mnt

Code:
load averages:  0.28,  0.96,  0.96;               up 0+00:25:12
 01:17:12
19 processes: 18 sleeping, 1 on CPU
CPU states:  0.7% user,  0.0% nice,  1.0% system,  0.0% interrupt,
98.3% idle
Memory: 419M Act, 4608K Exec, 7252K File, 12M Free
Swap: 922M Total, 922M Free

That's 400MB of tmpfs (RAMdisk in MacOS terms. :) ), and a total of
456MB physical RAM being used. It's not 520MB because I couldn't touch
the first 2 banks (interleaving means if it to

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Re: Using pkgsrc with low RAM

James Stocks — 2013-04-07T10:27:22

On 7 Apr 2013, at 00:15, Brian <cymraegish< at >gmail.com> wrote:


Thanks for the offer but I've already bought this:

http://www.ebay.co.uk/itm/310410644920

Hopefully it will work, but if not I will re-ebay it.  Just have to wait a week or so for it to find its way across the Atlantic now!

Re: Using pkgsrc with low RAM

Hauke Fath — 2013-04-07T10:15:51

ISTR (most) Macs are doing fine with EDO RAMs which tend to be cheaper than
FPM, especially in bigger sizes. My Quadra 650s have EDO memory; I'd have
to check the Performa 475.

hauke


--
"It's never straight up and down"     (DEVO)

Re: Using pkgsrc with low RAM

Brian — 2013-04-06T23:15:55

Make sure the SIMM is FPM and double sided single banked. For 64MB would be same but single sided. 

If you want I could look for a part number. Right now tho I can't get to it it's buried under some other equipment that is busy working. 


On Apr 6, 2013, at 1:02 AM, James Stocks <stocksy< at >stocksy.co.uk> wrote:

Re: Using pkgsrc with low RAM

Karsten Kruse — 2013-04-05T14:42:25

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On 04.04.2013 20:03, James Stocks wrote:


Maybe you could get rid of the -pipe option in addition to the other
suggestions, that should free up some more memory.

MFG,

Karsten Kruse


- -- 
  ()
 <\/>   "TEPCO in Japan is turning a possible Chernobyl into
 _/\_   a mere Three Mile Island."
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Re: Using pkgsrc with low RAM

James Stocks — 2013-04-06T08:02:28


Thanks for the responses everyone.  I will take a punt on a 128 MB SIMM, there are a few on eBay for not too much money.  Of course I will report any success or failure.

Incidentally, I'm really happy with how well NetBSD works on this old Mac, it was the first BSD system I set up and it's been running NetBSD 2.0 since around 2006.  Having half-forgotten about it since then, I finally did an upgrade from 2.0 to 6.0.1 last weekend and it went really smoothly.  Impressive.

James.

Re: Using pkgsrc with low RAM

David Brownlee — 2013-04-05T07:58:57

I believe last option (standing) wins :)

Re: Using pkgsrc with low RAM

Hauke Fath — 2013-04-05T06:41:21

The interesting question here is what "cc -O0 -O2" will do...

hauke


--
"It's never straight up and down"     (DEVO)

Re: Using pkgsrc with low RAM

Brian — 2013-04-04T22:09:52

As far as optimizer goes. I have had people tell me that optimizing for size is often faster on these machines. At least helps at runtime with low RAM. 



On Apr 4, 2013, at 11:03 AM, James Stocks <stocksy< at >stocksy.co.uk> wrote:

Re: Using pkgsrc with low RAM

Brian — 2013-04-04T22:06:50

Despite official limits on RAM being 32MB there are 64 and even 128 MB cards that work. I have  a 64 in my 475 and have also used a 128 which is in my quadra 630 presently. Some of the
630s have 2 slots and will take up to 192MB. 

Back maybe 4 years ago I paid less than $30 for the 2 cards. 


On Apr 4, 2013, at 11:03 AM, James Stocks <stocksy< at >stocksy.co.uk> wrote:

Re: Using pkgsrc with low RAM

David Brownlee — 2013-04-04T18:59:59

I suspect pcre may use C++, which uses CXX flags.

Could you try adding the following to mk.conf:

CFLAGS+=-O1    # for c
CXXFLAGS+=-O1  # for c++
MAKE_FLAGS+=-O1  # For imake

In each case the line is adding (the +=) "-O1" to the existing compiler options.

The default compiler optimisation option is -O2 (For optimise very
hard, and trade off large quantities of memory and time compiling for
small runtime gains).

-O1 is optimise relatively well, but do not spend large quantities of
memory and compile time

-O0 is do not optimise at all, which gives the fastest compile, but
definitely worse runtime performance.

Re: Using pkgsrc with low RAM

Hauke Fath — 2013-04-04T18:29:41

The assumption is that the optimizer uses a lot of memory. But you'd need
to replace the packages' default optimization level to see an effect.


First and best thing you could do is probably looking for a 64 MB SIMM (I
don't know if 72 pin SIMMs ever came in 128 MB a piece). Borrowing from an
old Volkswagen saying, memory is irreplaceable, except by more memory.

Second, you could grow your swap partition, or add a second disk with
another swap partition. But swap is slow, and at twice the RAM size, you
are looking at diminishing returns.

Let us know how it's going.

HTH,
hauke


--
"It's never straight up and down"     (DEVO)

Using pkgsrc with low RAM

James Stocks — 2013-04-04T18:03:14

Hi,

I'm trying to build lighttpd from pkgsrc on my Mac LC 475 which has 32MB RAM and 50MB swap.  I get as far as building pcre, where the build stops.  From this log message:

UVM: pid 29033 (cc1), uid 0 killed: out of swap

I gather that I'm running out of available memory.  I read somewhere that putting CFLAGS+=-O0 in /etc/mk.conf would help, but it didn't have any effect (and I don't understand what it would do).

I realise that this probably isn't a mac68k specific problem, but I reasoned that many people on this list will have systems with small amounts of RAM and might be willing to offer advice.

Regards,
James.

Re: Netbooting mac68k

Karsten Kruse — 2013-04-01T22:22:53

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On 01.04.2013 13:16, Martin Husemann wrote:


Some people have suggested (offlist) to use the MacOS network floppy
and put booter+kernel on a network share with netatalk. :o)


Right. All i need now is to tell the kernel the name, path and
filesystem options of the NFS share.

MFG,

Karsten Kruse

- -- 
  ()
 <\/>   Ich glaube ich habe einen Tinitus in den Augen, ich seh
 _/\_   lauter Pfeifen.
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Re: Netbooting mac68k

Hauke Fath — 2013-04-02T08:03:51

If you are talking about the Booter, it is BOOTP, although http might be an
idea.


Make that ae0 (most Nubus ethernet cards), sn0 (most on-board ethernet
adapters except the Quadra 840), or sm0.

hauke




--
"It's never straight up and down"     (DEVO)

Re: Netbooting mac68k

Hauke Fath — 2013-04-02T08:00:41

Almost.

Given a proper dhcpd configuration, the Booter will fetch a kernel image
over the network, which can then mount its root over NFS. The mac68k list
archive should have instructions; www.netbsd.org has details on how to set
up the server side for netbooting.


You don't, unless somebody teaches the booter to work with System 6. Even a
pared-down System 7 with MacTCP and the Booter is too big for a 1.4 MB
floppy.

Note that OpenTransport (v1.3 is the last version to run on mac68k) is
considerably faster for netbooting than MacTCP.

HTH,
hauke


--
"It's never straight up and down"     (DEVO)

Re: Duo 270c

Martin Husemann — 2013-04-01T12:51:59

I don't qualify as the former, but I guess you may want to look at the
call to check_video() in src/sys/arch/mac68k/mac68k/machdep.c (whichever
of those you hit, or maybe you need to add another case for your machine).

Martin

Re: Netbooting mac68k

Martin Husemann — 2013-04-01T11:16:56

IIRC the bootloader can load the kernel via http (but its been some time
since I fought with it). So you'd only need a OS 7 or 8 with the bootloader
on floopy, a dhcp server and the kernel on a local web server somewhere.

The kernel can do dhcp/NFS itself if configured for "root on le0 type nfs".

Martin