Researcher publishes the factors of RSA-896
Two 448-bit primes, published on a one-page post dated 19 September. The multiplication verifies in a second; the method is not described at all.
Measured, not assumed
Claims in this industry travel further than the measurements behind them. These notes are the ones where somebody did the arithmetic instead: a benchmark that reports what it cannot support, a memory saving proved with a chart before and after, a cache rewritten and timed on a real schema, a factorisation anyone can verify in a line. We check what is checkable before publishing, and we say which half of a story we could not check.
New benchmark compares ZFS, Btrfs and bcachefs under failures
ext4, XFS, ZFS, Btrfs and bcachefs across single and multi-device layouts, run continuously in CI — and the caveats are stated as loudly as the numbers.
Cloudflare cuts 100TB of RAM from its load balancers
A load balancer was holding 100,000 hash points per server. The maths said the last 90,000 bought a 0.7% accuracy gain, and 32-bit hashes made them worse than useless.
Rails loads a JSON schema cache 22x faster than YAML
Point schema_cache_path at a .json file and Active Record stops paying the YAML cost at boot. A new herb:check task compiles every ERB template and fails the build.