Charities say the figures are likely to underestimate the true scale of the issue, as only those sleeping rough on one single night in the autumn are counted.
Максим Габриелян (ведущий редактор отдела «Мир»)
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The work, he adds, is less about a single crisis than about enduring change. Every year presents something different, but SpeedPro’s concept and service have been in demand irrespective of whatever the company has faced, he says.
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.