The ArcPad Team Blog

Unofficial stuff from the team behind the World's leading mobile GIS platform

Thursday, January 10, 2008

Memory Indicator

Whilst developing ArcPad 7.1 we found that we were beginning to push the memory limits of some of our devices. To assist with testing and diagnosis, we introduced a memory indicator which monitors the remaining memory available for ArcPad to use.


The memory indicator can be accessed at any time from within ArcPad by double clicking/tapping the 'rocker status'... i.e. the 'Z' on the right hand side of the status bar.

You may see 1 or 2 bar graphs.

You will see 1 bar graph if the physical available memory is greater than the memory required by ArcPad. That is there is more memory than the current ArcPad design can use. (ie more than 32MB free memory).

If you see 2 bar graphs ( the 2nd will have a ‘V’ for ’virtual’ on the icon), then you see how much physical memory is available and how much virtual memory is available. The physical will be less than the virtual. The “Lo Mem” indicator will automatically appear (even if memory status is off) under the follow 3 conditions :
Less than 1MB free : RED bar
Less than 2MB free : Orange bar
Less than 3MB free : Yellow bar



Red indicates critical level due to low memory and efforts should be made to make more memory available i.e close other applications.


To see what your total memory is, look in the System Info of the About page in ArcPad:



You should note that on a CE device the total virtual memory for a process (ie ArcPad) is always currently 32MB.
















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6 Comments:

  • At Friday, January 11, 2008 2:06:00 am, Anonymous Anonymous said…

    Good to know. There is a forum post on this topic, that the 'Lo Mem' message appears when using Street Map, and functionality is restricted. Can you take a look and respond?

    Thanks~

    http://forums.esri.com/Thread.asp?c=34&f=2365&t=242175&mc=7

     
  • At Friday, January 11, 2008 4:30:00 am, Blogger J.T. said…

    This comment has been removed by the author.

     
  • At Wednesday, February 17, 2016 7:11:00 am, Blogger John O'Connell said…

    I am running ArcPad 10.2.3 on Windows Emb. Mobile 6.5. I'm at 18MB remaining out of 32 when I open a blank map, turn off the GPS, disable all extensions and have no data. How is that when you are showing over 18 with some shapefiles with many features on them?

    When I add a 4 blank shapefiles, 1 simple polygon shapefile (Natl. Wetland Inventory) and 1 background tiff, all clipped to 1.5 km square, I drop to 6-8MB. Edit one of those, and it drops to 3. And that's before we have data.

    What am I doing wrong? Please help as I just dropped several $k and am about to switch back to using handheld recreational GPS.

     
  • At Wednesday, February 17, 2016 9:01:00 am, Blogger Marika said…

    Although memory consumption is a long running battle with ArcPad and WM devices the numbers you describe are quite high. Does your device have a high resolution (QVGA) screen by any chance? We have observed that these amplify the problem significantly.

     
  • At Wednesday, February 17, 2016 9:09:00 am, Blogger John O'Connell said…

    OK. I'm glad to hear that I'm not crazy. It sure seemed to me that others are having better luck on RAM than I am, even when they have data. The screen specs are:

    Active viewing area: 4.3" (109 mm) WVGA LCD TFT (800x480)

    It's a Juniper Archer2. Brand new and not running any other software when we are running ArcPad.

    PS. Thanks for the rapid response! I must say that I figured based on the dates for blog posts that it was a shot in the dark to post here, but you proved me wrong!

     
  • At Wednesday, February 17, 2016 9:45:00 am, Blogger Marika said…

    Yes the device you describe does have a high resolution screen and that will contribute to the memory differences you are seeing. Saying that, there are a ways to make the most of the memory you have, please contact Esri Tech support for more help.

    The responses here are aimed to point people to tech support or other suitable online resources.

     

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