On Wed, 16 Aug 2017, Chris Brandt wrote: > I made an example once were all the graphics were RAW and uncompressed > and marked as XIP in AXFS. The result was a large saving of RAM because > as the graphics framework (DirectFB) would copy directly from Flash > whenever it needed to do a background erase or image re-draw (button press > animations). > > Same went for playing MP3 files. The MP3 files were XIP in flash, so > mpg123 pulled from flash directly. I wouldn't have expected mpg123 to mmap() its input files though. If you use read() and not mmap() then you don't get the full benefit. Nicolas -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
