Case Study: NVIDIA cuts code review time from 24+ hours to 6 with Greptile

Nvidia cuts time to merge from 24+ hours to 6 with Greptile

NVIDIA, a global leader in computing, faced significant challenges with the efficiency of its code review process. The engineering team, particularly within hardware infrastructure, was overwhelmed by the volume of pull requests, leading to extensive review times and difficulty maintaining coding standards across its large, complex codebases written in C++, Python, and CUDA. To address this, they turned to the vendor Greptile and its AI-powered code review tool.

Greptile implemented a solution that uniquely indexes the entire codebase, providing context across files rather than just reviewing isolated diffs. This approach, combined with custom rules for NVIDIA-specific standards, allowed the tool to catch logic errors and enforce patterns effectively. As a result, one NVIDIA team dramatically reduced its average time to merge code from over 24 hours to just 6 hours. Since implementation, Greptile has reviewed approximately 395,000 pull requests across NVIDIA, significantly boosting developer productivity and code quality.

Nvidia