The physics of squeaking sneakers

· · 来源:stat资讯

Git packfiles use delta compression, storing only the diff when a 10MB file changes by one line, while the objects table stores each version in full. A file modified 100 times takes about 1GB in Postgres versus maybe 50MB in a packfile. Postgres does TOAST and compress large values, but that’s compressing individual objects in isolation, not delta-compressing across versions the way packfiles do, so the storage overhead is real. A delta-compression layer that periodically repacks objects within Postgres, or offloads large blobs to S3 the way LFS does, is a natural next step. For most repositories it still won’t matter since the median repo is small and disk is cheap, and GitHub’s Spokes system made a similar trade-off years ago, storing three full uncompressed copies of every repository across data centres because redundancy and operational simplicity beat storage efficiency even at hundreds of exabytes.

《唐诗传》:赵柏田著;山东文艺出版社出版。

Adam Driver。业内人士推荐safew官方下载作为进阶阅读

2012 年 3G 手机出货量是 2.65 亿部,比去年同期增长了 81.4%,到了 2014 年,3G 手机下滑,4G 手机销量暴涨。

19:37, 27 февраля 2026Культура

The Pulse 2/27

Ранее глава Минфина Антон Силуанов признал, что из-за падения нефтегазовых доходов властям придется несколько скорректировать закон о федеральном бюджете в части расходов.