Claude Code Processes Found Consuming 30GB RAM Across Developer's Terminal Sessions

Simon Willison found Claude Code processes collectively consuming ~30GB of RAM across terminal windows on his Mac, with one process alone hitting 4.9GB.

Simon Willison reported on X that Claude Code processes running across multiple terminal windows on his Mac were collectively consuming ~30GB of memory, with the largest single process reaching 4.9GB. Willison noted he was using default settings and had not enabled any new agents features.

The observation highlights a practical consideration for developers who run concurrent Claude Code sessions — a common pattern when working across multiple projects or repositories. As agentic coding assistants become part of standard developer workflows, their RAM footprint becomes a meaningful variable in day-to-day machine performance, particularly on laptops or memory-constrained systems. The disclosure also raises open questions about resource management in long-running AI coding agents, which typically maintain large context windows and model state to support multi-step autonomous tasks.

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