ERPC Completes http Migration for Solana Geyser gRPC and Shreds Across All Regions — Achieves Over 120ms P99 Latency Reduction Through Communication Overhead Elimination

ERPC, operated by ELSOUL LABO B.V. (Headquarters: Amsterdam, the Netherlands; CEO: Fumitake Kawasaki) together with Validators DAO, announces the completion of the http migration for all Solana Geyser gRPC and Direct Shreds (Shredstream) endpoints across every available region.

This update represents the culmination of a series of speed optimization initiatives following the recent AMD EPYC 5th Generation upgrade and tuning improvements, achieving over 120ms of P99 latency reduction for both gRPC and Shreds endpoints.

Background and Technical Rationale for http Migration

Why TLS Was Removed

Solana blockchain data is public data — there is no confidential information in the data delivered via gRPC and Shreds. Under the previous TLS (HTTPS) configuration, encryption overhead affected the entire communication path, continuously increasing latency not only during the initial handshake but throughout the duration of the stream.

Continuing to encrypt data that contains no confidential information only adds latency without providing meaningful security benefits. Based on this assessment, ERPC made the decision to migrate to http.

Transition to IP-Based Access Control

As part of the http migration, ERPC built an access authentication and control system based on IP addresses, eliminating dependence on tokens or API keys. This removes authentication-related overhead and strips away all unnecessary processing from the communication path.

This transition was not achieved overnight. It is the result of sustained R&D efforts to minimize communication overhead while maintaining robust security checks, connection management, and protection against unauthorized access.

Performance Improvement Results

Geyser gRPC Endpoints

As the cumulative effect of the full update series (AMD EPYC 5th Gen upgrade, R&D-driven tuning improvements, and http migration):

P99: Over 120ms latency reduction achieved

Direct Shreds (Shredstream) Endpoints

Through comprehensive improvements including node reinforcement, configuration optimization, full hardware throttle release, path optimization, and http migration:

P99: Over 120ms latency reduction achieved

Target Regions

This update has been applied to endpoints across all regions served by ERPC: Frankfurt, Amsterdam, London, New York, Tokyo, and Singapore.

Endpoint Migration Guide

If you were using the previous https endpoints, simply change https to http in your URL to begin using the faster new endpoints.

Structural Advantages of Communication Overhead Elimination

The Impact of TLS on gRPC Streaming

In typical HTTP requests, TLS overhead is concentrated during the initial connection handshake. However, in streaming communication such as gRPC, connections are maintained over extended periods and every data frame is subject to encryption and decryption. This means TLS costs accumulate not just at connection time but across the entire stream.

In high-throughput environments like Geyser gRPC and Shredstream, where data flows at high frequency, this continuous encryption processing has a pronounced impact on tail latency (P95/P99). By eliminating this structural bottleneck through http migration, ERPC has achieved significant improvements in both stability and latency, particularly during peak load periods.

Synergy with Zero-Distance Architecture

ERPC deploys endpoints within data centers that host the highest concentration of Solana stake, enabling zero-distance communication with major validators. The elimination of communication overhead through http migration maximizes the advantages of this zero-distance architecture, embodying a design philosophy that reduces latency to its absolute minimum through both physical proximity and communication efficiency.

ERPC's Infrastructure Quality Standard

Across all product tiers — including standard configurations — ERPC selects only first-class resources. The latest generation AMD EPYC processors, always-on full turbo operation, placement within high-stake data centers, and the thorough elimination of communication overhead achieved in this update — all are designed for users where performance translates directly into value.

Future Outlook

ERPC will continue its R&D efforts as a top-tier Solana RPC provider, pursuing further latency reduction and quality improvements. Our mission is to maintain a stable, high-performance platform through continuous load observation and responsive network reinforcement and configuration optimization.

Your feedback continues to be a major driving force behind our platform improvements. Thank you as always.

Contact

For questions or support, please create a support ticket via the Validators DAO official Discord.

Validators DAO Official Discord: https://discord.gg/C7ZQSrCkYR

For official information and plan details, please visit the ERPC website.

ERPC Official Website: https://erpc.global/en

We sincerely thank all users for their continued support of ERPC.