741MB RAM?

Raspberry Pi 2

741MB RAM?

Postby ryano88 » Fri Feb 06, 2015 5:12 pm

I just installed archlinux arm on my pi 2 using the instructions here: http://archlinuxarm.org/platforms/armv7 ... berry-pi-2

It boots up fine, but when I use the command: free -m, it says that the total memory is 741MB

Why is it not showing the full amount of RAM?
ryano88
 
Posts: 7
Joined: Fri Feb 06, 2015 5:09 pm

Re: 741MB RAM?

Postby WarheadsSE » Fri Feb 06, 2015 7:14 pm

See your config.txt in /boot/

It is the gpu/cpu memory split.
Core Developer
Remember: Arch Linux ARM is entirely community donation supported!
WarheadsSE
Developer
 
Posts: 6807
Joined: Mon Oct 18, 2010 2:12 pm

Re: 741MB RAM?

Postby ryano88 » Fri Feb 06, 2015 11:45 pm

The gpu_mem_1024 is set to 64 so shouldn't the RAM be about 960MB?
ryano88
 
Posts: 7
Joined: Fri Feb 06, 2015 5:09 pm

Re: 741MB RAM?

Postby ryano88 » Fri Feb 06, 2015 11:58 pm

I've also tried changing gpu_mem_1024 to 16, but I still get 741MB of RAM show up
ryano88
 
Posts: 7
Joined: Fri Feb 06, 2015 5:09 pm

Re: 741MB RAM?

Postby DonAlfredo » Sat Feb 07, 2015 11:09 am

New firmware (today) gives me 924MB !
Thanks !!!
DonAlfredo
 
Posts: 11
Joined: Fri Jan 24, 2014 6:48 am

Re: 741MB RAM?

Postby Patatra » Sat Feb 07, 2015 11:12 am

Maybe it has something to do with this : http://www.raspberrypi.org/forums/viewtopic.php?p=683804#p683804?

EDIT : just saw your last answer (cross post!) great news!
Patatra
 
Posts: 13
Joined: Fri Mar 08, 2013 9:18 am

Re: 741MB RAM?

Postby pinoverclock » Mon Feb 09, 2015 10:43 am

Hi am runing on the last firmware too and i have changed all gpu_mem_* to 16, but I still getting 741MB of RAM

[root@alarmpi ~]# uname -ar
Linux alarmpi 3.18.6-2-ARCH #1 SMP PREEMPT Sun Feb 8 09:40:23 MST 2015 armv7l GNU/Linux
[root@alarmpi ~]# free -m
total used free shared buff/cache available
Mem: 741 23 656 8 61 691
Swap: 0 0 0
pinoverclock
 
Posts: 15
Joined: Mon Dec 31, 2012 2:05 pm

Re: 741MB RAM?

Postby pepedog » Mon Feb 09, 2015 11:38 am

pepedog
Developer
 
Posts: 2431
Joined: Mon Jun 07, 2010 3:30 pm
Location: London UK

Re: 741MB RAM?

Postby pinoverclock » Mon Feb 09, 2015 12:16 pm

I see:
$this->bbcode_second_pass_quote('', 'H')ighmem support is broken so you're only going to get a maximum of 740MB usable RAM, regardless of setting gpu_mem < 256.


Is there any plans to fix it in the near future?

Thank you very much
pinoverclock
 
Posts: 15
Joined: Mon Dec 31, 2012 2:05 pm

Re: 741MB RAM?

Postby pepedog » Mon Feb 09, 2015 12:59 pm

You must ask on raspberrypi forum or github
pepedog
Developer
 
Posts: 2431
Joined: Mon Jun 07, 2010 3:30 pm
Location: London UK

Next

Return to Broadcom

Who is online

Users browsing this forum: No registered users and 4 guests