Nov 10, 2025 · Cloud Computing

How Polar‑TCP Breaks Kernel Network Bottlenecks for Million‑IOPS Cloud Services

This article explains how traditional kernel network stacks struggle with modern cloud data‑center workloads and introduces Baidu Intelligent Cloud's Polar solution—Polar‑TCP and Polar‑RDMA—which combine user‑space DPDK drivers, a lightweight TCP stack, and an industrial‑grade RPC framework to achieve near‑RDMA performance while preserving ecosystem compatibility.

Cloud ComputingDPDKHigh‑Performance Networking

0 likes · 24 min read

How Polar‑TCP Breaks Kernel Network Bottlenecks for Million‑IOPS Cloud Services

Linux Kernel Journey

Mar 8, 2025 · Backend Development

Optimizing MPTCP Flow Selection and Exploring a User‑Space MPTCP Stack – ByteDance STE at Netdev 0x19

At Netdev 0x19, ByteDance's STE team presented two technical talks: a NUMA‑aware MPTCP flow‑selection strategy that boosts Redis benchmark throughput by up to 30% and cuts tail latency by 6%, and a DPDK‑based user‑space MPTCP stack that halves latency and doubles throughput in data‑center tests.

DPDKLinux networkingMPTCP

0 likes · 8 min read

Optimizing MPTCP Flow Selection and Exploring a User‑Space MPTCP Stack – ByteDance STE at Netdev 0x19

How Polar‑TCP Breaks Kernel Network Bottlenecks for Million‑IOPS Cloud Services

Optimizing MPTCP Flow Selection and Exploring a User‑Space MPTCP Stack – ByteDance STE at Netdev 0x19

Optimizing MPTCP Flow Selection and Exploring a User‑Space MPTCP Stack – ByteDance STE at Netdev 0x19