https://bugzilla.novell.com/show_bug.cgi?id=662127
https://bugzilla.novell.com/show_bug.cgi?id=662127#c1 Michael Hutchinson <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |[email protected] --- Comment #1 from Michael Hutchinson <[email protected]> 2011-01-03 21:08:04 UTC --- I have been developing a Mono.Simd-accelerated version of the XNA maths classes, and I found the following problems: * the JIT handling of aligment is poor; sometimes randomly makes functions 10x slower * Mono.Simd needs ref overloads for *everything* (including operators) else fallbacks are unnecessarily forced to be much slower * the JIT does not deal well with trivial indirection, e.g. Vector4 struct with single Vector4f struct field. op_Multiply is 5x slower than using Vector4f directly. * on x86 the JIT uses x87 FPU, so comparisons to SSE are not fair * JIT doesn't seem to inline trivial methods that simply call another method or intrinsic, e.g. operator overloads calling static method version, so I had to inline a lot by hand -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the QA contact for the bug. _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
