top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

Mimimum RAM size required to run android?

0 votes
405 views

According to CDD document, it is stated below"Device implementations MUST have at least 340MB of memory available to the kernel and userspace. The 340MB MUST be in addition to any memory dedicated to hardware components such as radio, video, and so on that is not under the kernel's control."

MY understanding:
340 MB is required for both user and kernel space. 340 MB is for hardware components , So, in total minimum 680 MB (Please correct me if my understanding is wrong ?)

But, if i look at mobiles that are available in the market, they are not compliance with the requirement. (HTC ONE V , has 512 MB of RAM, but still runs android 4.0.3 , in which the requirement is 680MB.)

Considering above, how the OEM vendor passes compatibility test?

posted Jun 25, 2014 by Rameshwar

Share this question
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

+1 vote

No, the total required amount of RAM depends on how much of the available memory is dedicated to hardware components. So the HTC One V only has to have less than 172MB dedicated to its hardware components, inaccessible to kernel and userspace, to be compliant.

answer Jun 25, 2014 by Abhay Kulkarni
Similar Questions
+2 votes
Andorid JB 4.2.2 OMX Input Buffer Size Issue

I have an Open-MAX component which can decoder AVC/H264 streams. The component works fine for .MP4 clips and I am able to play without issues. Now when I switch to .ts clips (which are .h264/AVC with AAC audio (because android only support that)), I see that the input buffer size is never sufficient to push the data in to the hardware.

By default I have a buffer size of 32kb which is later increased to 64kb (by SetParameter Call). I see the failure in this case.

Then I change the buffer size to 256 kb then this size is retained and not changed by setParameter call. I see the above issue with 256kb input buffer size. Even in this case I see the failure (attached log below).

I get the following error : 

I/ATSParser( 2000): resizing buffer to 262144 bytes 
I/ATSParser( 2000): resizing buffer to 327680 bytes 
E/OMXCodec( 2000): [OMX.BCM.Video.decoder] Codec's input buffers are too small to accomodate buffer read from source (info->mSize = 262144, srcLength = 269076) 
E/MediaPlayer( 3598): error (1, -**********) 
E/MediaPlayer( 3598): Error (1,-**********) 
D/VideoView( 3598): Error: 1,-**********

Any input -

0 votes
How to check the instantaneous occupied amount of my RAM the similar way the task manager shows it on my Win server?

As far as I know , to check for the amount of installed RAM on my centos server I checked it as:

#more /proc/meminfo

Can you please let me know how can I check for the instantaneous occupied amount of my RAM the similar way the task manager shows it on my Win server?

0 votes
What is RAM?
+3 votes
Why cache memory is faster than RAM?

I have few questions about Cache Memory

1) My understanding of cache memory is, there are 3 type of cache memory,
1. Within RAM
2. Within CPU (L1,L2,L3)
3. Separate Hardware which is costlier than all others.

Please correct if I am wrong,

2) Who stores the data into cache? I mean, can we write a program which should use only cache memory? If yes then how to do it? if no then who manages that?
For example,
Cache memory within RAM, is it managed by Kernel?(Memory Management Unit)
Cache memory within CPU, is it managed by CPU itself?

3) Why cache memory is faster than RAM?

...