The Hidden Value of CPU-Intensive Compression on Modern Hardware

  • Thread starter Thread starter Umair Khurshid
  • Start date Start date
Compression in the storage stack is usually treated with quiet suspicion, and it is assumed that compression is an expensive luxury that consumes CPU cycles needed elsewhere.

This idea rests on a particular hierarchy of constraints in which the processor is scarce and I/O is comparatively expensive but secondary.
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I go with that, but figure my drive is faster than my CPU. I have i5-8400H (8th-gen Coffeelake) and a x4 Gen3 NVMe, and on Linux with initramfs I had fastest times with no compression (others were comparable/real-world the same though with notably smaller sizes)
 
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