Фото: Министерство обороны РФ / РИА Новости
庞若鸣本科毕业于上海交通大学，并于2006年在普林斯顿大学拿下计算机科学博士学位。他的职业生涯同样亮眼。在谷歌深耕五年后，他于2021年成为苹果基础模型团队的领军人物，负责开发Apple Intelligence背后的核心系统。当时苹果在AI领域的进展相对缓慢，甚至不得不考虑引入Anthropic或OpenAI的模型来为Siri提供支持。这种对自身局限性的默许，反衬出庞若鸣在苹果内部突围行动中的关键价值。
。关于这个话题，Line官方版本下载提供了深入分析
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.
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France GP — May 10