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Google Cloud’s U4 machines bring hardware-level networking to low-latency trading

cloud.google.com by Disha Chopra, Yarden Halperin 7 min read Editor score 7/10

Google Cloud’s ULL solution combines hardware-based multicast with network traffic capture timed at hardware level. Deterministic networking and replayable traffic are useful patterns for latency-sensitive distributed systems.

What: Google Cloud’s Ultra Low Latency Solution includes U4 machines for running high-frequency trading workflows in the cloud.
How: Hardware-level multicast sends market data to trading applications, while Firefly enables sub-10-nanosecond network timestamping.
Why it matters: Bare metal compute, isolated feeds, and telemetry are designed to support predictable execution and auditing for financial markets.

Market data flows through dedicated adapters to low-latency trading applications. Sketched from the article's own text.

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