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Kris Kumar
Contributing Editor
Joined: 02 Jul 2003
Posts: 3405
Location: Rochester, NY, USA
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 Posted: Mon Jan 16, 2006 7:00 am Post subject: Limit the Pocket IE Cache Size and Avoid Having Low Storage |
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Do you surf the Internet a lot on your Smartphone's Pocket Internet Explorer browser? It is just a matter of time before you will run into the low storage memory alert. I know I did. Thanks to the sharp QVGA screen and EDGE speeds, I am browsing a lot. The first time I ran into the low storage memory error message, I thought that it was because of my overflowing Hotmail Inbox. But it turned out to be the Pocket Internet Explorer cache, which was holding about 4MB worth of temporary files.
The moment the pIE cache was cleared, my low memory problem was solved. Now I wanted to find out a way to put the pIE on a diet. Mike suggested a quick and simple registry tweak that limits the size of the pIE cache to a manageable level.
| Code: |
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content]
"CacheLimit"=dword:00001536 |
The default CacheLimit setting on my Cingular 2125 had a DWORD value 6126, which meant the maximum cache size was set to 6126KB, approximately 6MB.  I lowered it to DWORD value 1536, which represents 1536KB (1.5MB). I would recommend a value between 1024KB (1MB) and 2048KB (2MB). Do not set a value lower than 512KB, because then the cache will not be effective. This tip works on both the Windows Mobile 2003 SE and the Windows Mobile 5.0 based devices. And is highly recommended to our readers who have recently enabled the keypad shortcuts in the pIE browser.  Since this change involves editing the registry, I must warn our readers, please take care and backup the data if possible.
Source: Pocket PC Thoughts
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martyh1
Smartphone Neophyte
Joined: 17 Jun 2005
Posts: 3
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| Posted: Mon Jan 16, 2006 9:30 am Post subject: |
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This has been discussed many times in several different forums. This registry tweak wont stick after a soft reset on many pocket pcs and smartphones. For some reason, after a reset, the setting returns to its default. You might want to try a search on brighthand's forums.
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John Cody
Smartphone Intellectual
Joined: 30 Jun 2003
Posts: 135
Location: Long Island, NY
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| Posted: Mon Jan 16, 2006 9:45 am Post subject: |
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| martyh1 wrote: |
| This has been discussed many times in several different forums. This registry tweak wont stick after a soft reset on many pocket pcs and smartphones. For some reason, after a reset, the setting returns to its default. You might want to try a search on brighthand's forums. |
On my MPX-220, I did a soft-reset (via a utility), and a power off/on, and it remembered the setting 
I also have my IE temp folder pointed over to my storage card so I don't use up any main memory, but I doubt this would be why it remembers the cache setting.
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-John Cody
Last edited by John Cody on Mon Jan 16, 2006 10:10 am; edited 1 time in total
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John Cody
Smartphone Intellectual
Joined: 30 Jun 2003
Posts: 135
Location: Long Island, NY
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| Posted: Mon Jan 16, 2006 9:49 am Post subject: |
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I also noticed that no matter what I set this cache value to (I knew about this reg key a little while back), it doesn't seem to do much 
Meaning, if I load a page, then click on a link on that page to go to another page, then press the back button, it seems like it takes just as long to load the first page as it did the first time it was loaded.
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-John Cody
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Kris Kumar
Contributing Editor
Joined: 02 Jul 2003
Posts: 3405
Location: Rochester, NY, USA
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Kris Kumar
Contributing Editor
Joined: 02 Jul 2003
Posts: 3405
Location: Rochester, NY, USA
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| Posted: Mon Jan 16, 2006 8:53 pm Post subject: |
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The settings are preserved between reboots on my 2125. I did read the readers' comments in the PPCT thread regarding the soft-reset problem. How can I soft-reset my device?
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Mike Temporale
Managing Editor
Joined: 07 Jul 2003
Posts: 6518
Location: Toronto, Canada
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| Posted: Mon Jan 16, 2006 8:56 pm Post subject: |
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| Kris Kumar wrote: |
| I believe if you use the storage card then the browsing would be slow. Isn't the storage card slower than the built-in storage memory? |
Yes, flash memory is slower. I'm not sure how much this translates into what John is talking about though. I have noticed that Pocket IE doesn't seem to pull from the cache - ever. 
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Mike Temporale
Managing Editor
Joined: 07 Jul 2003
Posts: 6518
Location: Toronto, Canada
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| Posted: Mon Jan 16, 2006 8:59 pm Post subject: |
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| Kris Kumar wrote: |
| How can I soft-reset my device? |
Well, powering off and on the device is considered doing a soft reset. The only difference in what John is doing, is that it doesn't halt the phone. Once powered down, it will start booting up. I don't think there is anything technically different in the processes that are done.
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"I have no special talents, I am only passionately curious" - Albert Einstein
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John Cody
Smartphone Intellectual
Joined: 30 Jun 2003
Posts: 135
Location: Long Island, NY
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| Posted: Mon Jan 16, 2006 9:00 pm Post subject: |
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| Kris Kumar wrote: |
| The settings are preserved between reboots on my 2125. I did read the readers' comments in the PPCT thread regarding the soft-reset problem. How can I soft-reset my device? |
As far as I know, turning off, then back on your smartphone is a "soft-reset" - because it actually goes through a "boot" sequence when powered on before you can use it. Whereas turning off a pocket PC just puts it into a suspend mode, and that's why it's instantly ready to use when you press the power ON button- and the way to soft-reset a PocketPC is typically done by inserting your stylus into a special "reset" hole on the device.
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-John Cody
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John Cody
Smartphone Intellectual
Joined: 30 Jun 2003
Posts: 135
Location: Long Island, NY
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| Posted: Mon Jan 16, 2006 9:03 pm Post subject: |
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| Kris Kumar wrote: |
| I believe if you use the storage card then the browsing would be slow. Isn't the storage card slower than the built-in storage memory? |
I just recently pointed the IE temp folder to my storage card so I would have max free main memory on my device. But, when it was pointed to the main memory, the cache still didn't seem to speed up anything
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-John Cody
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