Well your estimate for the graphics is way low. That's just a framebuffer
-- every window has its own buffer (and is actually double-buffered) as
well.
The modem is a lot more too. :)
Anyway, regardless of exactly what takes what, this is the RAM we end up
with on the device.
On Thu, Jul 9, 200
2MB framebuffer should be enough for a 480*320*16bpp device, (even
considering the virtual 960 width, and double buffer)
for camera, a 3M pixel camera, 6MB might be enough, or the worst 10MB
Modem, RAM for its execution, plus the AP-BP communication, 15M is
enough enough.
other driver's DMA buffer
On Wed, Jul 8, 2009 at 10:33 PM, tom wrote:
> yes, kernel need to reserve some for its text, data, mem_map, and
> other like FB etc.
> But, 192-101=91MB, does modem need 91MB?!
It also includes DMA buffers, graphics memory, etc.
--
Dianne Hackborn
Android framework engineer
hack...@android.co
2009/7/9 tom :
>
> yes, kernel need to reserve some for its text, data, mem_map, and
> other like FB etc.
>
> But, 192-101=91MB, does modem need 91MB?!
>
We argue HTC ram usage once.It's really hard to know ram detail layout.
--wxc200
>
> On Jul 9, 1:09 pm, wxc200 wrote:
>> On Jul 9, 11:51 am, D
yes, kernel need to reserve some for its text, data, mem_map, and
other like FB etc.
But, 192-101=91MB, does modem need 91MB?!
On Jul 9, 1:09 pm, wxc200 wrote:
> On Jul 9, 11:51 am, Dianne Hackborn wrote:> On Wed, Jul
> 8, 2009 at 7:25 PM, wxc200 wrote:
> > > Do you mean App-processor and o
On Jul 9, 11:51 am, Dianne Hackborn wrote:
> On Wed, Jul 8, 2009 at 7:25 PM, wxc200 wrote:
> > Do you mean App-processor and other Modem processors?
> > If so,that's right.App processor only use part of the total physical
> > memory.
> > BUt in my case, even "cat /proc/meminfo" doesnot match
On Wed, Jul 8, 2009 at 7:25 PM, wxc200 wrote:
> Do you mean App-processor and other Modem processors?
> If so,that's right.App processor only use part of the total physical
> memory.
> BUt in my case, even "cat /proc/meminfo" doesnot match app-usable
> memory.
Well what does it say? As the or
On Jul 6, 10:53 pm, Jean-Baptiste Queru wrote:
> There are other processors in the device that also need some RAM in
> order to be able to run.
Do you mean App-processor and other Modem processors?
If so,that's right.App processor only use part of the total physical
memory.
BUt in my case, eve
There are other processors in the device that also need some RAM in
order to be able to run.
JBQ
On Mon, Jul 6, 2009 at 12:51 AM, tom wrote:
>
> HTC hardware spec said there are 192MB RAM.
> But there is only 101MB available for kernel.
>
> What are the rest 91MB used for?
> Or did I miss someth
