On all my PCs, I have known how much storage space is at my disposal. But not on the Universal.
The user manual states that the device has
ROM: 128 Mb RAM: 64 Mb
But using Settings -> System -> Memory, I get the information that the space is 43.72 Mb for storage and 47.93 Mb for programs.
That makes almost 91 Mb. What is the relationship between these 91 Mb and the ROM and RAM? And when I use File Explorer (or Total Commander), I cannot see any distinction between areas for storage and programs.
Can anybody remove my confusion?
Welcome to the world of Windows Mobile 5...
128 MB ROM is divided into space for the operating system (+- 64 MB) and persistent storage (this is where you have 43.72 MB available). Persistent storage will preserve your data even when the battery is flat.
The RAM is no longer user controllable, and you cannot (easily) store anything there. So the 47.93 MB for programs is purely informational. No more slider where you can shift between storage and program memory.
obviously you are new... but please, research and read the existing thousands of discussion and contributions by hundreds of people on this same topic.
it is expired, old and tedium when the answers are here, over and over and over again.
there is a search function, it works try it.
Here's how it goes:
he Universal comes with 128MB ROM and 64MB RAM as compared to its predecessors who had the exact opposite.
The 128MB ROM is divided into 2 parts:
1) OS + Extended ROM (around 84MB)
2) Storage (remaining 43.5MB as shown above
The 64MB RAM is 90% available to run programs. As with the earlier version of the OS, there is no longer a provision to alter the memory allocated between storage and program memory. Of the 64MB RAM, around 15MB RAM is used for running the OS while the rest (47.93 MB) is left for running installed programs. This is more than enough to do multi-tasking without hiccups.
Hope this helps If you still have any queries about it, please feel free to ask.
hansof feel free to ask anything you want, we arent all smart arses like simon_dreary. In my experience the search function is rubbish.
Dear All,
I run the O2 XDA as is w/ 4 heavy add applications, Navi, PIM, Wallet and Blackberry.
I start w/ 50% RAM usage after soft-reset. After some days I see 75%
There is either a memory leak in the applications, or DLLs are sitting there and are not unloaded from mem.
IS THERE ANYWHERE A TOOL TO MANAGE AND REVIEW THE DYNAMIC MEMORY ALLOCATION (RAM) ??
Thank you for info.
Regards
Hans Kurscheidt
lve0200 said:
Dear All,
I run the O2 XDA as is w/ 4 heavy add applications, Navi, PIM, Wallet and Blackberry.
I start w/ 50% RAM usage after soft-reset. After some days I see 75%
There is either a memory leak in the applications, or DLLs are sitting there and are not unloaded from mem.
IS THERE ANYWHERE A TOOL TO MANAGE AND REVIEW THE DYNAMIC MEMORY ALLOCATION (RAM) ??
Thank you for info.
Regards
Hans Kurscheidt
Click to expand...
Click to collapse
I am not aware of one. The Sktools application has some useful clean-out stuff and has an option to manage running processes. It does not sadly show their %Ram usage figures.
Mike
Ram usage
Hi, thank you for your reply.
May be somebody else from the R&D side has something to say.
I recognised that the sum of RAM usage, as indikated by tools like SK or Taskmanager does not at all come close to the RAM usage indicated by System resources.
Hans Kurscheidt
Sorry to post to myself,
but I found out that after soft reset, Task manager tool and mem maid show significantly different memory allocation for the processes running after reset. For example filesys 2,85 Mb versus 2,4 Mb.
What to believe ??
All in all, I come close to 8 Mb mem usage for the processes. with 49 Mb free, I count 56 Mb. If the total RAM is 64Mb, where are the other 8 Mb? Can this be other code, copied into RAM for execution ?
Does somebody know, if the display has its own memory ?
Rgds
hk.
lve0200 said:
Sorry to post to myself,
but I found out that after soft reset, Task manager tool and mem maid show significantly different memory allocation for the processes running after reset. For example filesys 2,85 Mb versus 2,4 Mb.
What to believe ??
All in all, I come close to 8 Mb mem usage for the processes. with 49 Mb free, I count 56 Mb. If the total RAM is 64Mb, where are the other 8 Mb? Can this be other code, copied into RAM for execution ?
Does somebody know, if the display has its own memory ?
Rgds
hk.
Click to expand...
Click to collapse
Might be worth reading here:
http://forum.xda-developers.com/showthread.php?t=286313
Mike
Thanks,
have done that before I opend the new thread, but there was no answer to my questions in there.
Rgds
hk
hi, i would ask you, if there is any soft, that can do this:
my phone have 37 Storage and 49 Ram .. (have 27.5 storage and 28.5 Ram free)
so i want some program, that will make no 37MB-49MB but incrase it to "17MB storage (7 mMB free)-69 Ram ( 48 free) . is there some soft please?
Maximus-CZ said:
hi, i would ask you, if there is any soft, that can do this:
my phone have 37 Storage and 49 Ram .. (have 27.5 storage and 28.5 Ram free)
so i want some program, that will make no 37MB-49MB but incrase it to "17MB storage (7 mMB free)-69 Ram ( 48 free) . is there some soft please?
Click to expand...
Click to collapse
sibce wm5 there is no chance of changing the total ram and program storage. it is fixed by default. the only chance to get a little more free ram is to change pagepool.
I downloaded this application for pocket pc that does exactly what you are looking for, problem is it won't work for you herald. You can check it out anyway and see for yourself. Once installed you will have to edit the settings of the program to add the slider to the homescreen.
Yeah .. thx .. it realy do what i mean, but does not works for my herald. .. :-( i sad, becauswe have 2GB micro SD card and 20 MB free storage on mobile. ... i want some about 2 MB free storage .. but at last 30 MB of ram ... for some games.... :-(
Well, even if you get 30mb of ram, the ram demanding games will also demand processor power. My herald runs at 299Mhz but still most games that require 18-22mb ram require at least 400mhz processor. Even a game designed for a minimum 312 mhz pxa will run dead slow on a herald.
Requests/suggestions please for WM 6.1 cookers considering their next release:
- 64 MB Program Memory
- Absolute bare skeleton WM 6.1
- essential candidates for removal:
> customer feedback
> windows live
> any windows help & support related bloatware
> error reporting
> search
> windows media player
> any animated items, icons, etc..
> junk items under \windows; unnecessary gif,jpg,bmp,png
etc, text files
- single boot screen, no splash, animations etc..
minimize WM 6.1 boot time
- removal of other misc bloatware, vaporware that are not
core to the function, speed and stability of WM 6.1
======================================================
To the site Administrators:
-------------------------
- can we initiate a donation bucket in which people may contribute
and pool donations?
- 1 month period (or other) in which donations can be collected and
cookers may submit their best releases
- the people (users) vote during the period on what they find to be
the most efficient, stable, fast, clean and best performing rom.
- at the end of the period the donation pool is distributed to the top 3
most voted cookers, e.g. 60%/25%/15% respectively.
======================================================
Suggestions, ideas, recommendations, criticism etc certainly
welcome.
Thanks to all
--kara
64M program memory mean No WM.
why?
is there a maximum?
Thanks,
ks1781 said:
why?
is there a maximum?
Thanks,
Click to expand...
Click to collapse
you are really someone )
Trinity have only 64MB build in , how come it have 64MB program memory ? DId you have brain ?
--yes,
if the device has 64 MB SDRAM, why is it that most cooked roms
generally present approx. 50 MB of that?
is this a limitation or is missing 14 MB used for a special purpose?
Thanks for any advice.
?? because it takes up space to install the operating system.. even a 'bare bones' operating system is still an operating system..
did you ever wonder why there's space missing from your hard drive after you install windows xp?
http://www.htc.com/www/product.aspx?id=470
Memory ROM: 128 MB
RAM: 64 MB SDRAM
What is the ROM 128 MB designated for?
Thanks for your patience with me.
--kara
if i understand him correctly, he is referring to the program memory i.e. RAM not ROM. the 128MB ROM is meant for installation of OS (WM) where the 64MB RAM is the execution power. we normally get ~20MB-25MB RAM free out of 64MB total. i believed the rest (64MB - 25MB) was used for other services once WM started.
yes, that is what i'm trying to understand..
in this p3600 specification from HTC:
http://www.htc.com/www/product.aspx?id=470
it lists>
128 MB ROM
64 MB RAM
=================================================
for the 128 MB ROM
I assume the 128 MB ROM contains the OS installation, with
some component of this ROM hidden/reserved.
E.g. some cooked roms released have 'Big Storage'
~70 MB available to the user for NV storage
the remaining 58 MB comprises OS installation and a reserved
area.
=================================================
for the 64 MB RAM
This is the volatile memory available for the OS to boot & run, and
for program execution.
However, on most cooked roms I have used, under
Settings -> System -> Memory
'Program Total' is reported as ~50 MB.
So my question is - where is the remaining 14 MB RAM??
as dum as it sounds i've wondered about that too
even formatting issues aside (like how hard drive capacity is always lower than reported), 14MB seems like a lot to 'go missing'.
why doesnt WM even report it? because its being used by the system for services? so then why does it ALSO report itself using around 20MB of what's left?
that way, it's like 14 MB used (hidden) + approx. 20MB reported (shown) = approx. 34MB total? :/ hmm
ks1781 said:
So my question is - where is the remaining 14 MB RAM??
Click to expand...
Click to collapse
OK - You have a PC with 1GB of RAM say. Once say windows xp has booted up - your AV started etc. you probably have 684MB say of RAM left, so Where did the other 340MB of RAM go to?
Think about it.
wtf i still don't get it... dont be mad
i mean mine reports 2096236 KB... a full 2048MB of RAM
BUT of course 100-300 minimum will always be in use for the system itself
whereas in WM, it reports like 48MB total, AND say approx. 20MB in use
ok so the 20MB minimum in use will ALWAYS be in use because of windows mobile itself. FINE.
but why does it only represent 48MB as available?
and if that is the case, there's that missing unreported 12MB, PLUS that minimum 20MB always in use
that's what im curious about
Just think that Windows XP takes 250/300 mb of ram space....
PS: Please edit your title... Someone could understand that you really have a 64mb free ram rom......
joncgde2 said:
wtf i still don't get it... dont be mad
i mean mine reports 2096236 KB... a full 2048MB of RAM
BUT of course 100-300 minimum will always be in use for the system itself
whereas in WM, it reports like 48MB total, AND say approx. 20MB in use
ok so the 20MB minimum in use will ALWAYS be in use because of windows mobile itself. FINE.
but why does it only represent 48MB as available?
and if that is the case, there's that missing unreported 12MB, PLUS that minimum 20MB always in use
that's what im curious about
Click to expand...
Click to collapse
Maybe it is for the Radio Rom etc...or maybe Microsoft are stealing Ram and stockpiling it....lol
This is actually a valid question.
The system has 64MB of ram, some how 14MB of this ram is allocated away before the OS loads. This leaves 50MB of ram left for the OS, which uses about 20 MB and leaves 30 MB of ram for applications.
I think everyone understands this part.
The question is, what part of the phone is pre-allocating 14MB of ram.
My only guess is the videocard, if not that then it might be the pagefile.
tetsuo55 said:
This is actually a valid question.
The system has 64MB of ram, some how 14MB of this ram is allocated away before the OS loads. This leaves 50MB of ram left for the OS, which uses about 20 MB and leaves 30 MB of ram for applications.
I think everyone understands this part.
The question is, what part of the phone is pre-allocating 14MB of ram.
My only guess is the videocard, if not that then it might be the pagefile.
Click to expand...
Click to collapse
Does it really matter where it goes? Obviously if that memory hasn't been exploited yet by the excellent cookers etc in here....then it can't be of any benefit.
I concur with tetsuo55.
The reasoning proposed by Andych and others still does not quite
correlate.
i.e. 64 = 14 (OS) + ~20 (progs) + ~30 free
the ~20 is supposedly attributed to basic progs,
e.g. phone, filesys, mail etc..
A listing of such process summates to approx. 8 MB total.
That still leaves 12 MB of unaccounted for basic function
and userland process consumption.
Regarding the ATI video chip, general investigation and
settings check of tcpmp would suggest at best it is a
4 MB chip (whether dedicated or shared)
I cant see the 'remaining ~14 MB' that I'm searching for
being used for paging. Paging is part of overall virtual memory,
and involves page outs/ins to a location on some type
of physical media. Additionally, with the usual ~ 30 MB
ram free, in the context of these devices, a swap requirement
is unlikely given the 'free' memory available.
Although 14 MB may seem peanuts compared to standard desktop
ram configurations today - with a p3600 + WM, recovering the
14 MB (if possible) would provide a much welcomed bonus to
the trinity.
--kara
ahh now we're onto something good work ks1781...
i fully agree with the need to just find out the answer to this... most likely it's something that will be perfectly explainable and make sense and we won't be able to do anything once we find out
but it sure would be nice to know
OK I have the 'answer' - straight from a Windows Mobile blog - I'll post it here cos it's all straight to the point and interesting (somewhat) Link is HERE
The Page Pool
Applications use RAM in two ways. There is code that runs, and there is data that is created while it is running. On a NOR device, the code can run directly from the ROM and not be loaded into RAM first. This process is called XIP (eXecute In Place). NAND devices can't XIP, so their code is loaded into RAM and executed from there. If you don't have a Page Pool, this code is loaded into normal RAM. The Page Pool is a mechanism to limit how much code is loaded into normal RAM. With a Page Pool, we can unload code that hasn't been used in a while and reload it later if we need to. We can't do that without a Page Pool.
On a typical NAND-based WM5 device, the Page Pool is 4.5M.
The Radio Stack
Devices with a Cellular Radio have a complicated bunch of code to make their radios talk to cell towers. On some devices, the radio is a self-contained module with its own RAM and ROM. On others, the radio code is stored in the normal system flash. If so, it either needs to XIP, or it needs to be run in RAM. If it's run in RAM, that RAM is taken away from the system.
A typical radio stack takes 4M.
DMA Buffers
Some hardware can write directly into RAM without using the CPU to do it. This is called "Direct Memory Access" or DMA. DMA is very efficient and lets you get a lot more data transferred in the same amount of time, usually for less power. But it's best to set aside your DMA buffers before the system boots. This guarantees that they're there when you need them. PocketPCs have been doing this for a decade. But, back in the old days, the main use for DMA was audio capture. Audio data is small, so the DMA buffers are also small. Video, on the other hand, is big. More data requires bigger DMA buffers.
An OEM will tune the size of the pre-allocated DMA buffers based on what the device is intended to do. If the main goal is still photos, you can use a much smaller buffer. If the goal is recording video, it needs a much larger buffer. If the goal is video conferencing, it needs a bigger buffer still.
DMA buffers range in size between 300K and 6M. For a video capture device, it's likely to use around 4M.
XIPKernel
There are portions of the deepest parts of the OS that have to XIP. If you're on NOR, that code just XIPs like everything else. Not so on NAND. For a NAND system to boot, it needs to load this code into RAM first and then run it from there. When the system is running, it can't really tell if it's running from RAM or ROM, so it assumes it's running from ROM and doesn't count this space.
The XIPKernel region tends to be between 1.5 and 2M.
The Frame Buffer
There is a chunk of RAM set aside to hold everything that's on the screen. (If you want to know more about it, read this.) On most devices, every dot on the screen needs two bytes. A typical Pocket PC has 240x320 dots. That would be 300K. If you have a 640x480 screen, it's 600K. Sometimes, for performance reasons, devices will have two frame buffers. So this could take up to 1.2M.
Click to expand...
Click to collapse
Thanks joncgde2 - good find which provides a sufficient explanation as to the 'hidden' 14 MB.
There is still another question.
WM reports ~24 MB in use (per earlier screen captures) - where 'in use'
is attributed to running applications.
Checking a process listing via task manager shows the total
apparent RAM in use by these 'running applications' to be ~8 MB.
Can anyone provide an explanation to account for the
remaining ~16 MB??
hello
is there any hack to bypass or increase the 32 MB memory limit in WM 5 , 6 , 6.1 Or 6.5?
I am using a program that stops at 32 MB memory usage and It needs around 40+ MB to complete?
I seriously doubt it, as each application gets a 32MB "slot" of virtual memory to use, so there's a 32MB per process limit.
Are you using QEMU?
However, maybe this is possible.
We'll know if it's possible as soon as I try to run QEMU and install WindowsXP on my HTC HD2
If the WinXP installation will be fine and taking over 32MB of RAM, then it's possible even on other devices.
Why I'm talking about HD2?
This is simple.
The HD2 got a lot of RAM and this is a new device.. and maybe HTC has removed this limit. If this will work, I hope the limitation isn't in the NativeKernel!
The limitation is in the native kernel. It doesn't matter how many RAM your device actually got. The whole memory management is build up on it. I doubt you could change that with a little hack. Actually I guess there's a lot more behind it than only a merely "if size >= 32K"....
Wait for WM 7 which is based on Windows CE 6 (or later) which doesn't have that limitation anymore, since they completely rewrote the native kernel therefore.
I guess you could use multiple processes... It sucks, but I don't see another choice. The limit per process is 32 Mb. There is no limit on an app per-se afaik...
charge1313 said:
I guess you could use multiple processes... It sucks, but I don't see another choice. The limit per process is 32 Mb. There is no limit on an app per-se afaik...
Click to expand...
Click to collapse
Solution.
With a 32MB page per process, your only choice is to develop your app in multiple processes.
Sorry!