vivo Internet Technology

Sep 14, 2022 · Backend Development

Performance Optimization Practices in Vivo Push Recommendation Service

The Vivo Push recommendation service was dramatically accelerated by replacing regex‑based String.split with a custom utility, converting massive String‑key maps to long keys, and moving large caches off‑heap, which together cut latency by about 32%, boosted throughput roughly 45% and nearly doubled overall performance.