Any way to optimize the memory usage of Era?

[windycrypto]

Team or Project

No response

Module Affected

• System contracts (era-system-contracts)
• Smart contracts (era-contracts)
• zkEVM (era-zk_evm)
• Server (zksync-era)
• Prover (era-boojum)
• Fee withdrawer (era-fee-withdrawer)
• Block Explorer (clock-explorer)
• Portal - Wallet + Bridge (dapp-portal)
• Other (please specify below)

Rust Version

nightly-2024-08-01

Operating System

• Ubuntu
• MacOS
• Windows
• Other (Please specify below)

Issue Description

We are running the external nodes for Era, seems the external node consumes lots of memory (>30GB), is there a way to optimize the memory usage of the external node. We have external node for cronos zkevm, zklink and the Zero chain too, these chains cost 4-8GB memory, so could we have a technical answer where does the >30GB memory consumes in Era?

Expected Behavior

the external node cost much less memory

Current Behavior

the external node cost >30GB memory

Repository Link (if applicable)

No response

Additional Details

No response

Prior Research

• Yes, I searched for similar issues and did not find any matching ones.

[gleenai[bot]]

The high memory usage of the ZKsync Era external node, often exceeding 30GB, is primarily due to the complex operations and data structures required to support the zkEVM and its associated functionalities. Unlike simpler EVM-based chains, ZKsync Era's architecture involves more intensive computation and state management to ensure the security and efficiency of zero-knowledge proofs.

Here are a few technical insights into why ZKsync Era nodes may require more memory:

• State Size and Management: ZKsync Era nodes handle a larger state size due to the additional data required for zero-knowledge proofs.
• Batch Processing: Nodes may need to process and store large batches of transactions efficiently, which requires significant memory.
• Data Structures: Advanced data structures that are optimized for fast access and updates can also consume more memory.

Currently, there isn't a documented method to significantly reduce the memory usage without potentially compromising performance or security. However, you can ensure that your node is running on an optimized configuration and that unnecessary services or processes are disabled to minimize memory usage.

For more detailed technical support and potential optimizations, you might want to engage directly with the ZKsync developers community on GitHub discussions. They could provide more specific advice or updates on memory optimization efforts.

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