Optimal gpu_mem_512 setting

[mariosangiorgio]

Hello,

I have a Raspberry PI model B with 512MB of RAM memory.

In my /boot/config.txt file I have the following settings for the GPU memory. I think they are the default settings.
$this->bbcode_second_pass_code('', '
gpu_mem_512=316
gpu_mem_256=128
')

I am not using the Raspberry PI for doing anything graphical at all so I think that I could give the GPU less memory.

Not that my system is particularly RAM hungry, as you can see in my free output.
$this->bbcode_second_pass_code('', '
mario@alarmpi> free -h ~
total used free shared buffers cached
Mem: 184M 135M 49M 320K 30M 72M
-/+ buffers/cache: 32M 152M
Swap: 511M 0B 511M
')
I just think that since I'm only running a few services and that I'm only connecting to the box via ssh it would be more beneficial to have more available RAM rather than more memory allocated to the GPU.

[kotrfa]

Hello.

I have headless server on Archlinux ARM with just nginx, two simple django sites and using only SSH to connect. Here is what is uncommented in my /boot/config.txt:
$this->bbcode_second_pass_code('', '
##Turbo
arm_freq=1000
core_freq=500
sdram_freq=500
over_voltage=6

gpu_mem=16
')
16 GPU MB is perfectly fine - I have then 482 MB RAM and activelly using about 100 MB.

[mariosangiorgio]

Thanks for your answer!

I see you are running it in turbo mode. Is the speed improvement noticeable? What about the power consumption and the device heating?

I don't think I'm going to use my Raspberry PI in turbo mode, but I'm curious to know more about it.