Hi, On 6/12/19 6:42 AM, Baodong Chen wrote:
Swap function can be used when calling sort(). or else, the default swap function generic_swap() is used, which is a little inefficient.
I am not entirely convince this will be more efficient. mmio_handler does not fit in 64 bit, so the compiler may decide to do either multiple load or replace with a memcpy.
So at best this feels some micro-optimization. But then, this is only call a limited number of time at each domain build. Is it really worth it?
On a side note, I have noticed you are sending a lot of optimization/clean-up patch. What is your end goal here?
If it is to improve the performance, then there are much bigger fish to fry within Xen code base. I am happy to point some of them based on where you are looking to improve.
Cheers, -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
