3 ms·

> ASIC accelerated filesystems is just crazy What?

• dijit 9y ago
  You should read his comment, he's talking about all the ASICs involved in the underlying filesystem.
  • lorenzhs 9y ago
    let me rephrase gbrown_'s question: which part of my CPU is specific to ZFS? Because that's what ASIC means. The acronym stands for Application-specific integrated circuit.
• anoother 9y ago
  I guess this refers specifically to the following bullets: * Vectorized RAIDZ - Hardware optimized RAIDZ which reduces CPU usage. Supported SIMD instructions: sse2, ssse3, avx2, avx512f, and avx512bw, neon, neonx2 * Vectorized checksums - Hardware optimized Fletcher-4 checksums which reduce CPU usage. Supported SIMD instructions: sse2, ssse3, avx2, avx512f, neon * GZIP compression offloading - Hardware optimized GZIP compression offloading with QAT accelerator. All use vector and/or SIMD instructions on the CPU, thoughh QuickAssist (QAT above) is available on dedicated add-in card also.
  • gbrown_ 9y ago
    Yeah I don't equate SIMD instructions to being ASIC's.
    • lorenzhs 9y ago
      Yeah an ASIC is an Application-specific integrated circuit. SIMD instructions are not application-specific.
      • gigatexal 9y ago
        Thanks for correcting me. I was wrong. But it is nice to see acceleration in the FS space using SIMD intrinsics on the chips we already own.
  • gigatexal 9y ago
    Yeah quick assist cards is what I was referencing.