End-of-year CI budget report
First of all, thanks all who have contributed to help XGBoost development going. I'd like to post the end-of-year summary of how your donation has been used.
I had estimated the cloud cost to be 1000 USD/month, but thanks to active contributions over the year, the average cost has been greater, at 1600 USD/month. As a result, the 12k AWS credit ran out 3 months earlier than what I expected. See the detailed breakdown of costs at https://github.com/dmlc/xgboost/issues/5176.
I am reaching out to AWS again for another round of donation. Absent additional funding, we will need to take drastic cost-saving measures. For the coming month (Jan 2020), I will personally chip in 2k so that we can push out 1.0 release.