The Speed of Time
Brendan Gregg
SEPTEMBER 25, 2021
As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. As (C) looked like a kernel rebuild, I started with (D) and (E). ## 5. Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? But I'm not completely sure.
Let's personalize your content