I have a question regarding OpenGL ES context size. I have two OpenGL contexts running on iPad retina using GLKView. The view is configured to have no depth / stencil / multisampling but only a 32 bit framebuffer. A single buffer takes 12MB (2048*1536*4 bytes). Profiling my application reveals I have 3 IOKit allocations of 12MB plus one allocation of 12MB from Core Animation. I suspect they are all related. My guess is that Core animation caches the resulting frame buffer which explains the one 12MB coming from it.Also, I'm calling deleteDrawable on the GLKView which is hidden, which means that I would have expected a single 12MB buffer from IOKit and maybe another one from Core Animation. Does anyone have any experience with OpenGL memory consumption, how to reduce it and why do I see three IOKit allocations although I have only a single GLView at any given time?
iOS OpenGL context memory consumption
397 Views Asked by idan At
1
There are 1 best solutions below
Related Questions in IOS
- Impose component restriction to a series of parsys-CQ
- Wrong xml being inflated android
- Shorten the XSD
- Writing/Overwriting to specific XML file from ASP.NET code behind
- Magento custom block. Can't get block's file
- Layout not shifting up when keyboard is open
- CSV to XML XSLT: How to quote excape
- Getting deeply embedded XML element values
- Saving FileSystemInfo Array to File
- how to apply templates within xsl:for-each
Related Questions in OPENGL-ES
- Impose component restriction to a series of parsys-CQ
- Wrong xml being inflated android
- Shorten the XSD
- Writing/Overwriting to specific XML file from ASP.NET code behind
- Magento custom block. Can't get block's file
- Layout not shifting up when keyboard is open
- CSV to XML XSLT: How to quote excape
- Getting deeply embedded XML element values
- Saving FileSystemInfo Array to File
- how to apply templates within xsl:for-each
Related Questions in MEMORY-CONSUMPTION
- Impose component restriction to a series of parsys-CQ
- Wrong xml being inflated android
- Shorten the XSD
- Writing/Overwriting to specific XML file from ASP.NET code behind
- Magento custom block. Can't get block's file
- Layout not shifting up when keyboard is open
- CSV to XML XSLT: How to quote excape
- Getting deeply embedded XML element values
- Saving FileSystemInfo Array to File
- how to apply templates within xsl:for-each
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular # Hahtags
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
I believe that iOS devices use triple buffering internally, which would explain the extra allocations. This was mentioned by John Carmack in an email printed here.