Breaking news from the Linux world, and this is the kind of update that makes systems engineers sit up straight.
A new technique called CRAM compresses data directly inside RAM, and early results show up to a 452x speedup compared to current methods.
Let's break it down simply. Back in the 90s, people dreamed of compressing RAM the same way you'd zip a file with PKZIP. That dream became real, and Linux got tools like zswap and ZRAM to do exactly that.
The catch was that both of those tools worked through something called the swap layer. Think of it like needing to walk to a storage room down the hall just to grab something you could've kept right next to you.
CRAM removes that extra trip. Compressed data stays directly inside RAM, with no detour through the swap layer at all.
The result is a massive jump in read performance, reaching up to 452x faster than ZRAM in certain benchmarks.
For servers and systems that live and die by memory efficiency, this could mean squeezing far more out of the same RAM, without the latency tax older compression methods used to charge.
It's still early days for CRAM, but the lesson here is clear: sometimes the biggest performance leap doesn't come from better hardware. It comes from simply shortening the road your data has to travel.
🔗 Original Source & Reference: https://www.tomshardware.com/software/linux/new-linux-tech-compresses-memory-in-ram-as-ram-for-452x-speedup-new-cram-method-offers-giant-boost-to-compressed-memory-reads
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