> On Sep 6, 2017, at 2:20 PM, Sitsofe Wheeler <sitsofe@xxxxxxxxx> wrote: > Does that mean your assembly copy is better than memcpy on generic > data going memory-memory or is is it just in relation to copying to > block devices? I'm testing memory-based filesystems (mounted with DAX) using the mmap ioengine - either against an NVDIMM-N DDR4 module or on FreeBSD against an md device. Both my code using assembly intrinsincs and standard loops optimized with -ftree-vectorize are better than generic memcpy. -- Rebecca -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
