While this is almost surely a good idea, note that userspace caching and suballocation substantially improves Mesa performance even on PCIe systems. This is mostly due to the unavoidable overhead of kernel calls and pagetable modifications, as well as the avoidable linear search the kernel currently does to find an empty space in virtual address space, as well as the additional pagefaults.
Userspace caching and suballocation mean that you just have to compute a pointer, which you cannot beat with any kernel-space solution. This is also the way glibc allocates normal memory with malloc(), for the same reason. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
