[email protected] wrote: > > d) compile the delta set into the client program.
That works, but 1) It requires more work from the VM system on each invocation of the client program, which is now 1.x MB instead of 4K. 2) If a deployment wants to change the image set, it needs a compiler toolchain instead of a (small) delta-encoding program. Speed-wise, (d) might be a wash, or perhaps even a slight win. It depends on how efficient the VM system is, and the effectiveness of the filesystem buffer cache at preventing re-reads of the client process image (paging directly from JFFS2 is not possible). The framebuffer hack avoids numerous assumptions about the effectiveness of clever but complex subsystems (e.g. the VM system, the filesystem buffer cache, the shared library mechanisms, zlib, JFFS2 compression, ...). _______________________________________________ Devel mailing list [email protected] http://lists.laptop.org/listinfo/devel
