150 lines
4.1 KiB
Plaintext
150 lines
4.1 KiB
Plaintext
v2.19 Intel Intelligent Storage Acceleration Library Release Notes
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==================================================================
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RELEASE NOTE CONTENTS
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1. KNOWN ISSUES
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2. FIXED ISSUES
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3. CHANGE LOG & FEATURES ADDED
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1. KNOWN ISSUES
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----------------
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* Perf tests do not run in Windows environment.
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* 32-bit lib is not supported in Windows.
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2. FIXED ISSUES
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---------------
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v2.19
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* Fix erasure code test that violates rs matrix bounds.
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* Fix 0 length file and looping errors in igzip_inflate_test.
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v2.18
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* Mac OS X/darwin systems no longer require the --target=darwin config option.
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The autoconf canonical build should detect.
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v2.17
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* Fix igzip using 32K window and a shared object
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* Fix igzip undefined instruction error on Nehalem.
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* Fixed issue in crc performance tests where OS optimizations turned cold cache
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tests into warm tests.
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v2.15
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* Fix for windows register save in gf_6vect_mad_avx2.asm. Only affects windows
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versions of ec_encode_data_update() running with AVX2. A GP register was not
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properly restored resulting in corruption on return.
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v2.14
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* Building in unit directories is no longer supported removing the issue of
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leftover object files causing the top-level make build to fail.
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v2.10
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* Fix for windows register save overlap in gf_{3-6}vect_dot_prod_sse.asm. Only
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affects windows versions of erasure code. GP register saves/restore were
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pushed to same stack area as XMM.
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3. CHANGE LOG & FEATURES ADDED
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------------------------------
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v2.19
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* Igzip improvements
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- Add optimized Adler-32 checksum.
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- Implement zlib compression format.
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- Add stateful dictionary support.
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- Add struct reset functions for both deflate and inflate.
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* Reflected IEEE format CRC32 is released out. Function interface is named
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crc32_gzip_refl.
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* Exact work condition of Erasure Code Reed-Solomon Matrix is determined by new
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added program gen_rs_matrix_limits.
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v2.18
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* New 2-pass fully-dynamic deflate compression (level -1). ISA-L fast deflate
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now has two levels. Level 0 (default) is the same as previous generations.
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Setting to level 1 will switch to the fully-dynamic compression that will
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typically reach higher compression ratios.
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* RAID AVX512 functions.
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v2.17
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* New fast decompression (inflate)
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* Compression improvements (deflate)
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- Speed and compression ratio improvements.
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- Fast custom Huffman code generation.
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- New features:
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* Run-time option of gzip crc calculation and headers/trailer.
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* Choice of static header (BTYPE 01) blocks.
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* LARGE_WINDOW, 32K history, now default.
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* Stateless full flush mode.
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* CRC64
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- Six new 64-bit polynomials supported. Normal and reflected versions of ECMA,
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ISO and Jones polynomials.
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v2.16
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* Units added: crc, raid, igzip (deflate compression).
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v2.15
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* Erasure code updates. New AVX512 versions.
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* Nasm support. ISA-L ported to build with nasm or yasm assembler.
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* Windows DLL support. Windows builds DLL by default.
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v2.14
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* Autoconf and autotools build allows easier porting to additional systems.
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Previous make system still available to embedded users with Makefile.unx.
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* Includes update for building on Mac OS X/darwin systems. Add --target=darwin
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to ./configure step.
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v2.13
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* Erasure code improvments
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- 32-bit port of optimized gf_vect_dot_prod() functions. This makes
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ec_encode_data() functions much faster on 32-bit processors.
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- Avoton performance improvements. Performance on Avoton for
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gf_vect_dot_prod() and ec_encode_data() can improve by as much as 20%.
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v2.11
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* Incremental erasure code. New functions added to erasure code to handle
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single source update of code blocks. The function ec_encode_data_update()
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works with parameters similar to ec_encode_data() but are called incrementally
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with each source block. These versions are useful when source blocks are not
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all available at once.
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v2.10
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* Erasure code updates
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- New AVX and AVX2 support functions.
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- Changes min len requirement on gf_vect_dot_prod() to 32 from 16.
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- Tests include both source and parity recovery with ec_encode_data().
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- New encoding examples with Vandermonde or Cauchy matrix.
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v2.8
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* First open release of erasure code unit that is part of ISA-L.
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