On Friday 18 January 2013 07:51 PM, Arnd Bergmann wrote: > On Friday 18 January 2013, Vineet Gupta wrote: >> TBD: do_csum still needs to be written in asm > Do you actually expect a lot of improvement in do_csum? > I would hope that gcc can actually generate a pretty > good version of it, unless you have some 64-bit add-with-carry > instruction or something else that you could make use of.
We do have 32bit add-with-carry and it has it's own set of micro-architectural hazards and stalls which deserve careful insn scheduling. So yes the mileage would vary but certainly deserves a try. > >> Signed-off-by: Vineet Gupta <vgu...@synopsys.com> > Acked-by: Arnd Bergmann <a...@arndb.de> Thanks, -Vineet -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
