Meta develops CRAM to access compressed memory directly in Linux

The approach lets software access compressed RAM using standard memory semantics rather than treating it as a block device. According to Phoronix, CRAM uses hardware-assisted compression while preserving access to individual bytes and cache lines, and Meta engineers are developing it amid memory shortages, high prices and growing capacity needs.

• Tom's Hardware reports a 452-fold speedup.
• Phoronix describes CRAM as an improvement over ZRAM and Zswap.

Covered by 2 publishers within 30 hours of the first report.

• Phoronix: Meta Developing Compressed RAM "CRAM" For Linux: Better Than ZRAM & Zswap
• Latest 12:20 PM ET Tom's Hardware: New Linux tech compresses memory in RAM, as RAM, for 452x speedup

Reporting2

PHX Phoronix Meta Developing Compressed RAM "CRAM" For Linux: Better Than ZRAM & Zswap · Michael Larabel 6:23 AM

TH Tom's Hardware New Linux tech compresses memory in RAM, as RAM, for 452x speedup · Zak Killian 12:20 PM

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Topics Meta