Re: [Xen-devel] [PATCH] common/domain_page: Drop domain_mmap_cache infrastructure

2017-08-10 Thread Jan Beulich
>>> On 09.08.17 at 20:21, wrote: > This infrastructure is used exclusively by the x86 do_mmu_update() hypercall. > Mapping and unmapping domain pages is probably not the slow part of that > function, but even with an opencoded caching implementation, Bloat-o-meter >

[Xen-devel] [PATCH] common/domain_page: Drop domain_mmap_cache infrastructure

2017-08-09 Thread Andrew Cooper
This infrastructure is used exclusively by the x86 do_mmu_update() hypercall. Mapping and unmapping domain pages is probably not the slow part of that function, but even with an opencoded caching implementation, Bloat-o-meter reports: function old new