Израиль нанес удар по Ирану09:28
Competitive threats to Google’s own services
。业内人士推荐同城约会作为进阶阅读
他写道:“与通常能够轻松应对行业波动的企业不同,英伟达相对于其盈利和现金流而言沉重的供应义务,使得市场低谷对英伟达而言构成更大的潜在风险。”,更多细节参见safew官方版本下载
Что думаешь? Оцени!
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.