On Tue, Jan 07, 2020 at 09:33:34AM -0500, Peter Xu wrote:
On Mon, Dec 16, 2019 at 01:38:54PM -0800, Ben Gardon wrote:
While userfaultfd, KVM's demand paging implementation, is not specific to KVM, having a benchmark for its performance will be useful for guiding performance improvements to KVM. As a first step towards creating a userfaultfd demand paging test, create a simple memory access test, based on dirty_log_test.
Signed-off-by: Ben Gardon bgardon@google.com
It's fine to start with x86-only for this test, but imho it would be better to mention that in cover letter, or reply to reviewer comments on that you removed aarch64 from previous post.
I'd also prefer that if it's x86-only that it be put in the x86_64 subdirectory and drop the arch #ifdefs. The question is why is it x86-only for now though? Will it take a lot of work to port it to other architectures? Or does it just need testing by someone with the hardware?
Thanks, drew