ceph/src/isa-l/Release_notes.txt

   1 =============================================================================
   2 v2.16 Intel Intelligent Storage Acceleration Library Release Notes
   3       Open Source Version
   4 =============================================================================
   5
   6 =============================================================================
   7 RELEASE NOTE CONTENTS
   8 =============================================================================
   9 1. KNOWN ISSUES
  10 2. FIXED ISSUES
  11 3. CHANGE LOG & FEATURES ADDED
  12
  13 =============================================================================
  14 1.  KNOWN ISSUES
  15 =============================================================================
  16
  17 * Only erasure code unit included in open source version at this time.
  18
  19 * Perf tests do not run in Windows environment.
  20
  21 * 32-bit lib is not supported in Windows.
  22
  23 =============================================================================
  24 2. FIXED ISSUES
  25 =============================================================================
  26 v2.15
  27
  28 * Fix for windows register save in gf_6vect_mad_avx2.asm.  Only affects windows
  29   versions of ec_encode_data_update() running with AVX2.  A GP register was not
  30   properly restored resulting in corruption on return.
  31
  32 v2.14
  33
  34 * Building in unit directories is no longer supported removing the issue of
  35   leftover object files causing the top-level make build to fail.
  36
  37 v2.10
  38
  39 * Fix for windows register save overlap in gf_{3-6}vect_dot_prod_sse.asm. Only
  40   affects windows versions of erasure code.  GP register saves/restore were
  41   pushed to same stack area as XMM.
  42
  43 =============================================================================
  44 3. CHANGE LOG & FEATURES ADDED
  45 =============================================================================
  46 v2.16
  47
  48 * Units added: crc, raid, igzip (deflate compression).
  49
  50 v2.15
  51
  52 * Erasure code updates. New AVX512 versions.
  53
  54 * Nasm support.  ISA-L ported to build with nasm or yasm assembler.
  55
  56 * Windows DLL support.  Windows builds DLL by default.
  57
  58 v2.14
  59
  60 * Autoconf and autotools build allows easier porting to additional systems.
  61   Previous make system still available to embedded users with Makefile.unx.
  62
  63 * Includes update for building on Mac OS X/darwin systems. Add --target=darwin
  64   to ./configure step.
  65
  66 v2.13
  67
  68 * Erasure code improvments
  69   - 32-bit port of optimized gf_vect_dot_prod() functions.  This makes
  70     ec_encode_data() functions much faster on 32-bit processors.
  71   - Avoton performance improvements.  Performance on Avoton for
  72     gf_vect_dot_prod() and ec_encode_data() can improve by as much as 20%.
  73
  74 v2.11
  75
  76 * Incremental erasure code.  New functions added to erasure code to handle
  77   single source update of code blocks.  The function ec_encode_data_update()
  78   works with parameters similar to ec_encode_data() but are called incrementally
  79   with each source block.  These versions are useful when source blocks are not
  80   all available at once.
  81
  82 v2.10
  83
  84 * Erasure code updates
  85   - New AVX and AVX2 support functions.
  86   - Changes min len requirement on gf_vect_dot_prod() to 32 from 16.
  87   - Tests include both source and parity recovery with ec_encode_data().
  88   - New encoding examples with Vandermonde or Cauchy matrix.
  89
  90 v2.8
  91
  92 * First open release of erasure code unit that is part of ISA-L.