$(cpicName) Help - Memory Preferences

Memory preferences control how works with your system's memory. should function normally at it's default settings, but you can adjust these to take advantage of extra memory on your system, or scale them back if you encounter problems. To open the Memory preferences, click on the 'Memory' link on the left side of the Preferences window. | --></phtml>

Memory Preferences Virtual Memory Options
Virtual memory - defines how much memory should always try to leave available on your system (in bytes).

This option should always be set to at least 3MB (three megabytes) to prevent the operating system from running out of space with which to work. If this value is too low under Windows 3.1, Windows 95 and Windows 98, the memory allocator in the operating system will become unstable. Photodex has tested and confirmed that this is the case.

Bitmap Memory Options
has it's own sophisticated virtual bitmap processor, which can read in images of extraordinary sizes. If you know what you are doing, you can use these options to tune 's performance. stores bitmaps in chunks called 'tiles'. Because of this, can read in images of any size, and can efficiently process images which are larger than the amount of available virtual memory.

Maximum virtual bitmap chunk width - this is the maximum pixel width of each tile of a bitmap. This value should almost always be lower than 8192. Do not set this option lower than 256.

Maximum virtual bitmap chunk length - this is the maximum number of bytes allowed in each tile of a bitmap. This value should always be lower than 63488 to be compatible with most video drivers. Some video drivers will malfunction if this number is above 30,000, and still some other drivers malfunction if this number is above 15,000. Do not set this number below 512.

Total virtual bitmap RAM cache length - this is the maximum number of bytes that will use to store bitmap data. This includes ALL image data in use by at any given time, including batch conversions, user interface images and images being viewed and modified. Normally, this should roughly two thirds of the total physical RAM in the system. Systems with low amounts of RAM should use less than two thirds. It is impossible to set this value below 2MB (2097152), or larger than 1GB (1073741824.)

Thumbnail Storage Options
Total thumbnail RAM cache length - determines how much RAM can be used to cache thumbnails. This storage is secondary to bitmap storage in general, so thumbnails will always be cleared from the thumbnail cache before image data is virtualized onto disk.

Related Topics

- Preferences