On 11/28/2017 09:44 PM, Rebecca Cran wrote: > I’ve not followed the whole discussion, but I did some tests a couple > of months ago replacing the calls to memcpy in the memmap engine with > a new fio_memcpy function, rebuilding fio with the -ftree-vectorize > flag along with -msse2, -mavx etc. I saw an improvement of a few > hundred MB/sec on my openSUSE system. Care to send a patch for that? I think it'd be nice for fio to pack it's own, especially when the performance varies so wildly and is platform (and even version) dependent. -- Jens Axboe -- 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