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Intelligent Storage Acceleration Library

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Statistics on isa-l

Number of watchers on Github 191
Number of open issues 10
Average time to close an issue 1 day
Main language C
Average time to merge a PR 2 days
Open pull requests 0+
Closed pull requests 5+
Last commit over 1 year ago
Repo Created over 3 years ago
Repo Last Updated over 1 year ago
Size 1.03 MB
Organization / Author01org
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Intel(R) Intelligent Storage Acceleration Library

Build Status

ISA-L is a collection of optimized low-level functions targeting storage applications. ISA-L includes:

  • Erasure codes - Fast block Reed-Solomon type erasure codes for any encode/decode matrix in GF(28).
  • CRC - Fast implementations of cyclic redundancy check. Six different polynomials supported.
    • iscsi32, ieee32, t10dif, ecma64, iso64, jones64.
  • Raid - calculate and operate on XOR and P+Q parity found in common RAID implementations.
  • Compression - Fast deflate-compatible data compression.
  • De-compression - Fast inflate-compatible data compression.

Also see:

Building ISA-L


  • Assembler: nasm v2.11.01 or later (nasm v2.13 or better suggested for building in AVX512 support) or yasm version 1.2.0 or later.
  • Compiler: gcc, clang, icc or VC compiler.
  • Make: GNU 'make' or 'nmake' (Windows).
  • Optional: Building with autotools requires autoconf/automake packages.


To build and install the library with autotools it is usually sufficient to run:

sudo make install


To use a standard makefile run:

make -f Makefile.unx


On Windows use nmake to build dll and static lib:

nmake -f Makefile.nmake

Other make targets

Other targets include:

  • make check : create and run tests
  • make tests : create additional unit tests
  • make perfs : create included performance tests
  • make ex : build examples
  • make other : build other utilities such as compression file tests
  • make doc : build API manual
isa-l open issues Ask a question     (View All Issues)
  • over 2 years Build fails with clang on OS X El Capitain
  • over 2 years Build fails on Mac OS/X Sierra
  • over 2 years corrupted fragment on decode
  • over 2 years LARGE_WINDOW 32kb windows
  • over 2 years Erasure code support for PowerPC
  • over 3 years x32 compatibility
isa-l list of languages used
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