FPSTATE VSO has a wide range of applications across various industries:
Traditionally, reading the system clock or finding the current CPU core requires a software interrupt or a syscall instruction. This forces a context switch from user mode to kernel mode. Context switches are expensive because they invalidate CPU caches, flush pipelines, and cost hundreds of nanoseconds. fpstate vso
to ensure that if the signal handler performs its own floating-point math, the original program's calculations aren't lost. The FPSTATE VSO has a wide range of applications