311376 |
05-Jan-2017 |
sephe |
MFC 310048,310101,310239
310048 hyperv: Implement "enlightened" time counter, which is rdtsc based.
Reviewed by: kib Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8763
310101 hyperv: Allow userland to ro-mmap reference TSC page
This paves way to implement VDSO for the enlightened time counter.
Reviewed by: kib Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8768
310239 hyperv: Implement userspace gettimeofday(2) with Hyper-V reference TSC
This 6 times gettimeofday performance, as measured by tools/tools/syscall_timing
Reviewed by: kib Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8789 |