rising4월 26일· 2 sources
Breaking the 50ns Barrier: Optimizing Linux Timestamps for Ultra-Low Latency
50ns의 벽을 넘어라: 초정밀 저지연 시스템을 위한 Linux 타임스탬프 최적화
Why it matters
Even with vDSO optimizations, standard Linux clock syscalls can consume nearly 50ns, creating a significant bottleneck for microsecond-scale tracing. This deep dive explains why high-performance observability requires bypassing standard abstractions in favor of hardware-level counters to maintain sub-5% latency impact.
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c++clock_gettimelinuxlow-latencyopentelemetrytimestampsvdso