Welcome to XDA

Search to go directly to your device's forum

Register an account

Unlock full posting privileges

Ask a question

No registration required
Post Reply

why we need ion instad of pmem?

OP eyevol

5th January 2014, 05:37 AM   |  #1  
eyevol's Avatar
OP Junior Member
Thanks Meter: 0
 
7 posts
Join Date:Joined: Oct 2013
More
Android ION overview
ION is the memory manager of Android, it could be used by graphic and multimedia stacks to allocate buffers.
ION include a buffer sharing mechanism between process and drivers.
ION define opaque handles to manage underline buffers.
ION handles are only map in kernel if that is needed by drivers, it help to save logical address space.
In a same way ION handles aren't mmaped by default in userland but all helpers functions are provided.




i cant understand the things?
why need ion instad of pmem?
can some1 tell?
5th January 2014, 06:15 AM   |  #2  
Senior Member
Thanks Meter: 374
 
579 posts
Join Date:Joined: Mar 2013
More
ION is a new,unified memory allocator. Simple term: Make thing faster.
Newer driver now build for ION instead of PMEM. That's why ION is needed.
The Following 3 Users Say Thank You to Mark376 For This Useful Post: [ View ]
5th January 2014, 03:41 PM   |  #3  
Senior Member
Thanks Meter: 108
 
480 posts
Join Date:Joined: Apr 2011
More
nice and clear
Post Reply Subscribe to Thread
Previous Thread Next Thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes