poll() or select()?
一、写在前面：为什么要写这篇文章。关于这个话题，新收录的资料提供了深入分析
getTimeline and getListFeed rewritten with PostgreSQL LATERAL JOINs to force per-user index usage instead of full table scans. Major improvement for users following thousands of accounts.。新收录的资料对此有专业解读
Sort Method: top-N heapsort Memory: 35kB