Dask performance benchmarking put to the test: Fixing a pandas bottleneck

Jun 23, 2023 4m read Patrick Hoefler, Hendrik Makait Getting notified of a significant performance regression the day before release sucks, but quickly identifying and resolving it feels great! We were getting set up at our booth at JupyterCon 2023 when we received a notification: An engineer on our team had spotted a significant performance regression in Dask. With an impact of 40% increased runtime, it blocked the release planned for the next day!