CockroachDB developers have implemented several optimizations to address performance issues associated with Go's garbage collection, focusing on memory management and reducing allocations. By embedding structs, using sync.Pool, and reusing backing arrays, they have minimized memory allocations and garbage collection overhead. The use of a getBuffer struct allows for bundling multiple data objects and an array, reducing allocations from four to one, while sync.Pool facilitates the reuse of memory allocations across garbage collection cycles. Additionally, they employ gogoprotobuf, a fork of Google's protobuf library, which supports marshalling into byte slices backed by arrays and allows for embedding messages without additional allocations, providing a significant performance boost compared to the standard library. These optimizations collectively enhance the efficiency of CockroachDB's operations, with further memory profiling results to be shared in future updates.