Jeff Dean Anecdote: Diving into Assembly to Fix Async Training Bottlenecks
AndrewDai · x · 2026-08-08
A former Google employee shared an anecdote about Jeff Dean, praising his curiosity-driven and open research culture at Google Brain. In the pre-TensorFlow async training days, while typical engineers only read C++ code to investigate slow parameter updates, Dean dug all the way into the assembly code to find extraneous memory load/lock instructions. He also advised engineers to switch projects every few years to broaden their horizons.
Related event: Jeff Dean Anecdote Highlights Deep Debugging and Open Research Culture(2 posts)→
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