# Clean output: no thinking, no tools
Венесуэла подписала новые контракты на поставку нефти США08:58，这一点在电影中也有详细论述
Additional technical specifications, configure-to-order options, and accessories are available at apple.com/mac.，这一点在PDF资料中也有详细论述
BHR data showed specific interactions where my code hung - no apparent reason, never would have guessed. I refactored, and the hang graphs dropped. That feedback loop doesn't exist without telemetry being on in pre-release.。关于这个话题，heLLoword翻译官方下载提供了深入分析
Documents of products collection are intentionally designed to be more complex and larger than accounts - I want to see what happens, what is the performance penalty mainly, once individual documents are stored on multiple database pages. In Postgres, page size is 8 KB by default - in practice, the goal is to have at least 4 rows stored on a single page, so every record that is larger than 2 KB is put on two or more disk pages. It obviously reduces performance for both writes & reads - more disk pages to read from and write to. In Mongo it works slightly differently in details, but essentially in the same vein - larger documents are stored on more than one page, degrading performance for all operations. In both cases we are about to see - how much exactly.