[benchmark] lttng-ust with membarrier system call

Hi, Here is a benchmark update of LTTng-UST [1] tracing lots of events [2] from a single core to a flight recorder ring buffer. It has improved from 200ns per event to 150ns per event on x86-64 [3] by enabling the membarrier [4, 5] system call. This is a saving of 25 ns for each of the two memory

[benchmark] lttng-ust with membarrier system call

Hi, Here is a benchmark update of LTTng-UST [1] tracing lots of events [2] from a single core to a flight recorder ring buffer. It has improved from 200ns per event to 150ns per event on x86-64 [3] by enabling the membarrier [4, 5] system call. This is a saving of 25 ns for each of the two memory