Adding More Ram Via Sd Card

[austintb]

Originally Posted by cellguyn91

On the hardware side, it cannot be done because the processor is not designed to do this. The processor knows where it's memory location is and that is all it will use. As for virtual memory, I've never thought about this for a phone but I don't see anyone coding this for windows mobile. Is there really a need? The device you buy is designed to operate a specific OS and it does it well (most of them anyway). It's not until you start tinkering with things that you run into mem issues. Besides that, looking at the stats on the new hardware available for the mobile platform in the next year, I don't see us having many issues with lag anymore. 1.5 dual core processors, separate GPU's and devices showing 1+ gigs of RAM. I think overall that we will be okay without virtual memory.

True and also the processors on our phones dont support cross-over memory allocation to even allow memory virtualization, which no phones support that memory feature. Heres what im talking about. This is what our phones need on a larger scale to be able to reallocate the physical memory from our SD cards to our RAM scale.

[CellGuy]

Originally Posted by livejazz

Kind of like it wasn't possible for decades through all the previous versions of Windows until Vista came out. Alot of reasons.

matt

What? Windows 3.1 used Virtual Memory. It used the HDD not an SD card but it's still virtual memory.

[austintb]

Originally Posted by cellguyn91

What? Windows 3.1 used Virtual Memory. It used the HDD not an SD card but it's still virtual memory.

Thats true as well. But what he probably means is the fact that now the user can limit the ammount of memory you want to "pull" from the removable device.

[CellGuy]

Originally Posted by austintb

True and also the processors on our phones dont support cross-over memory allocation to even allow memory virtualization, which no phones support that memory feature. Heres what im talking about. This is what our phones need on a larger scale to be able to reallocate the physical memory from our SD cards to our RAM scale.

Too many big words in that thread, I glanced at it and got a headache. I only have a minor understanding of programming and how the information is sent to the processor which in return allocates X space of RAM to hold the information until it is called by the program. But even with my basic knowledge I can safely say it is not possible to allocate space on the SD card as system memory on the hardware side. Are you saying that it is also not possible to do so software side?

[austintb]

Originally Posted by cellguyn91

Too many big words in that thread, I glanced at it and got a headache. I only have a minor understanding of programming and how the information is sent to the processor which in return allocates X space of RAM to hold the information until it is called by the program. But even with my basic knowledge I can safely say it is not possible to allocate space on the SD card as system memory on the hardware side. Are you saying that it is also not possible to do so software side?

LOL. Sorry man. Ill simplify it in a diagram:

INPUT ---> KERNEL DEBUGGER ---> CODE > BINARY > DATA ---> PROCESSOR ---> RAM=CACHE ---> OUTPUT

Thats how the basic computing works. And say you have a 2.3GHz CPU speed, it will do all of that at 2.3GHz. Plus, when you pull free unallocated memory from a different source, it pages into the RAM cache bin. Sorry if thats to confusing, but thats about the most simple way I can put memory virtualization on mobile phones.

And no, even with software, its utterly impossible. Theres litterally no way of getting around it. I can guarentee that the new Snapdragon 1.0GHz mobile CPU's will support better memory virtualization. If you have any more questions about hardware or software, feel free to ask. I am A+ cert.

[CellGuy]

Originally Posted by austintb

LOL. Sorry man. Ill simplify it in a diagram:

INPUT ---> KERNEL DEBUGGER ---> CODE > BINARY > DATA ---> PROCESSOR ---> RAM=CACHE ---> OUTPUT

Thats how the basic computing works. And say you have a 2.3GHz CPU speed, it will do all of that at 2.3GHz. Plus, when you pull free unallocated memory from a different source, it pages into the RAM cache bin. Sorry if thats to confusing, but thats about the most simple way I can put memory virtualization on mobile phones.

And no, even with software, its utterly impossible. Theres litterally no way of getting around it. I can guarentee that the new Snapdragon 1.0GHz mobile CPU's will support better memory virtualization. If you have any more questions about hardware or software, feel free to ask. I am A+ cert.

No that's not confusing at all. You dumbed it down just the right amount. Thanks, makes sense now.

[austintb]

Originally Posted by cellguyn91

No that's not confusing at all. You dumbed it down just the right amount. Thanks, makes sense now.

Excellent. And thank you too.