mirror of
https://github.com/XRPLF/rippled.git
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2836c20649
b02bfa754 Tag open source release 1.1.7.
824e6718b Add a loop alignment directive to work around a performance regression.
55924d110 Add GNUInstallDirs to CMake configuration.
632cd0f12 Use 64-bit optimized code path for ARM64.
77c12adc1 Add unistd.h checks back to the CMake build.
c8049c582 Replace getpagesize() with sysconf(_SC_PAGESIZE).
18e2f220d Add guidelines for opensource contributions.
f0d3237c3 Use _BitScanForward and _BitScanReverse on MSVC.
71b8f8688 Add SNAPPY_ prefix to PREDICT_{TRUE,FALSE} macros.
be6dc3db8 Redo CMake configuration.
e4de6ce08 Small improvements to open source CI configuration.
c756f7f5d Support both static and shared library CMake builds.
038a3329b Inline DISALLOW_COPY_AND_ASSIGN.
a8b239c3d snappy: Remove autoconf build configuration.
27671c6ae Clean up CMake header and type checks.
548501c98 zippy: Re-release snappy 1.1.5 as 1.1.6.
513df5fb5 Tag open source release 1.1.5.
5bc9c82ae Set minimum CMake version to 3.1.
e9720a001 Update Travis CI config, add AppVeyor for Windows CI coverage.
f24f9d2d9 Explicitly copy internal::wordmask to the stack array to work around a compiler optimization with LLVM that converts const stack arrays to global arrays. This is a temporary change and should be reverted when https://reviews.llvm.org/D30759 is fixed.
82deffcde Remove benchmarking support for fastlz.
18488d621 Use 64 bit little endian on ppc64le.
7b9532b87 Improve the SSE2 macro check on Windows.
7dadceea5 Check for the existence of sys/uio.h in autoconf build.
83179dd8b Remove quicklz and lzf support in benchmarks.
c8131680d Provide a CMakeLists.txt.
ed3b7b242 Clean up unused function warnings in snappy.
8b60aac4f Remove "using namespace std;" from zippy-stubs-internal.h.
7d7a8ec80 Add Travis CI configuration to snappy and fix the make build.
1cd3ab02e Rename README to README.md. It already in markdown, we might as well let github know so that it renders nicely.
597fa795d Delete UnalignedCopy64 from snappy-stubs since the version in snappy.cc is more robust and possibly faster (assuming the compiler knows how to best copy 8 bytes between locations in memory the fastest way possible - a rather safe bet).
039b3a7ac Add std:: prefix to STL non-type names.
3c706d223 Make UnalignedCopy64 not exhibit undefined behavior when src and dst overlap.
d3c6d20d0 Add compression size reporting hooks.
626e1b9fa Use #ifdef __SSE2__ for the emmintrin.h include, otherwise snappy.cc does not compile with -march=prescott.
2d99bd14d 1.1.4 release.
8bfb028b6 Improve zippy decompression speed.
818b58338 adds std:: to stl types (#061)
27c5d8652 Re-work fast path for handling copies in zippy decompression.
4a7409408 Speed up Zippy decompression in PIE mode by removing the penalty for global array access.
38a5ec5fc Re-work fast path that emits copies in zippy compression.
094c67de8 Speed up the EmitLiteral fast path, +1.62% for ZFlat benchmarks.
fce661fa8 Speed up zippy decompression by removing some zero-extensions.
e788e527d Avoid calling memset when resizing the buffer.
32d6d7d8a Merge pull request #6 from deviance/provide-pkg-config-data
971613510 Add #ifdef to guard against macro redefinition if this is included in another Google project that also defines this.
0000f997d Merge pull request #13 from huachaohuang/patch-1
d53de1879 Make heuristic match skipping more aggressive.
2b9152d9c Default to glibtoolize instead of libtoolize if it exists, and also make it customizable through the environment variable $LIBTOOLIZE.
0800b1e4c Work around an issue where some compilers interpret <:: as a trigraph. Also correct the namespace name.
e7d2818d1 Unbreak the open-source build for ARM due to missing ATTRIBUTE_PACKED declaration.
7525a1600 Fix an issue where the ByteSource path (used for parsing std::string) would incorrectly accept some invalid varints that the other path would not, causing potential CHECK-failures if the unit test were run with --write_uncompressed and a corrupted input file.
ef5598aa0 Make UNALIGNED_LOAD16/32 on ARMv7 go through an explicitly unaligned struct, to avoid the compiler coalescing multiple loads into a single load instruction (which only work for aligned accesses).
b8cd908a8 Allow to compile in nested packages.
96a2e340f Update URLs in the Snappy README to reflect the move to GitHub.
0852af760 Move the logic from ComputeTable into the unit test, which means it's run automatically together with the other tests, and also removes the stray function ComputeTable() (which was never referenced by anything else in the open-source version, causing compiler warnings for some) out of the core library.
d80342922 Fix signed-vs.-unsigned comparison warnings.
d2cb73b6a Provide pkg-config data
efb39e81b Release Snappy 1.1.3; getting the new Uncompress variant in a release is nice, and it's also good to finally get an official release out after the migration to GitHub.
eb66d8176 Initialized members of SnappyArrayWriter and SnappyDecompressionValidator. These members were almost surely initialized before use by other member functions, but Coverity was warning about this. Eliminating these warnings minimizes clutter in that report and the likelihood of overlooking a real bug.
b2312c4c2 Add support for Uncompress(source, sink). Various changes to allow Uncompress(source, sink) to get the same performance as the different variants of Uncompress to Cord/DataBuffer/String/FlatBuffer.
b2ad96006 Changes to eliminate compiler warnings on MSVC
e7a897e18 Fixed unit tests to compile under MSVC.
86eb8b152 Change a few branch annotations that profiling found to be wrong. Overall performance is neutral or slightly positive.
11ccdfb86 Sync with various Google-internal changes.
22acaf438 Change some internal path names.
git-subtree-dir: src/snappy/snappy
git-subtree-split: b02bfa754ebf27921d8da3bd2517eab445b84ff9
181 lines
5.6 KiB
Plaintext
181 lines
5.6 KiB
Plaintext
Snappy v1.1.7, August 24th 2017:
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* Improved CMake build support for 64-bit Linux distributions.
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* MSVC builds now use MSVC-specific intrinsics that map to clzll.
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* ARM64 (AArch64) builds use the code paths optimized for 64-bit processors.
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Snappy v1.1.6, July 12th 2017:
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This is a re-release of v1.1.5 with proper SONAME / SOVERSION values.
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Snappy v1.1.5, June 28th 2017:
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This release has broken SONAME / SOVERSION values. Users of snappy as a shared
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library should avoid 1.1.5 and use 1.1.6 instead. SONAME / SOVERSION errors will
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manifest as the dynamic library loader complaining that it cannot find snappy's
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shared library file (libsnappy.so / libsnappy.dylib), or that the library it
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found does not have the required version. 1.1.6 has the same code as 1.1.5, but
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carries build configuration fixes for the issues above.
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* Add CMake build support. The autoconf build support is now deprecated, and
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will be removed in the next release.
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* Add AppVeyor configuration, for Windows CI coverage.
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* Small performance improvement on little-endian PowerPC.
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* Small performance improvement on LLVM with position-independent executables.
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* Fix a few issues with various build environments.
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Snappy v1.1.4, January 25th 2017:
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* Fix a 1% performance regression when snappy is used in PIE executables.
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* Improve compression performance by 5%.
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* Improve decompression performance by 20%.
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Snappy v1.1.3, July 6th 2015:
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This is the first release to be done from GitHub, which means that
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some minor things like the ChangeLog format has changed (git log
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format instead of svn log).
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* Add support for Uncompress() from a Source to a Sink.
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* Various minor changes to improve MSVC support; in particular,
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the unit tests now compile and run under MSVC.
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Snappy v1.1.2, February 28th 2014:
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This is a maintenance release with no changes to the actual library
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source code.
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* Stop distributing benchmark data files that have unclear
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or unsuitable licensing.
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* Add support for padding chunks in the framing format.
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Snappy v1.1.1, October 15th 2013:
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* Add support for uncompressing to iovecs (scatter I/O).
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The bulk of this patch was contributed by Mohit Aron.
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* Speed up decompression by ~2%; much more so (~13-20%) on
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a few benchmarks on given compilers and CPUs.
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* Fix a few issues with MSVC compilation.
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* Support truncated test data in the benchmark.
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Snappy v1.1.0, January 18th 2013:
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* Snappy now uses 64 kB block size instead of 32 kB. On average,
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this means it compresses about 3% denser (more so for some
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inputs), at the same or better speeds.
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* libsnappy no longer depends on iostream.
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* Some small performance improvements in compression on x86
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(0.5–1%).
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* Various portability fixes for ARM-based platforms, for MSVC,
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and for GNU/Hurd.
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Snappy v1.0.5, February 24th 2012:
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* More speed improvements. Exactly how big will depend on
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the architecture:
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- 3–10% faster decompression for the base case (x86-64).
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- ARMv7 and higher can now use unaligned accesses,
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and will see about 30% faster decompression and
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20–40% faster compression.
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- 32-bit platforms (ARM and 32-bit x86) will see 2–5%
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faster compression.
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These are all cumulative (e.g., ARM gets all three speedups).
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* Fixed an issue where the unit test would crash on system
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with less than 256 MB address space available,
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e.g. some embedded platforms.
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* Added a framing format description, for use over e.g. HTTP,
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or for a command-line compressor. We do not have any
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implementations of this at the current point, but there seems
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to be enough of a general interest in the topic.
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Also make the format description slightly clearer.
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* Remove some compile-time warnings in -Wall
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(mostly signed/unsigned comparisons), for easier embedding
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into projects that use -Wall -Werror.
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Snappy v1.0.4, September 15th 2011:
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* Speeded up the decompressor somewhat; typically about 2–8%
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for Core i7, in 64-bit mode (comparable for Opteron).
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Somewhat more for some tests, almost no gain for others.
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* Make Snappy compile on certain platforms it didn't before
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(Solaris with SunPro C++, HP-UX, AIX).
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* Correct some minor errors in the format description.
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Snappy v1.0.3, June 2nd 2011:
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* Speeded up the decompressor somewhat; about 3-6% for Core 2,
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6-13% for Core i7, and 5-12% for Opteron (all in 64-bit mode).
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* Added compressed format documentation. This text is new,
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but an earlier version from Zeev Tarantov was used as reference.
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* Only link snappy_unittest against -lz and other autodetected
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libraries, not libsnappy.so (which doesn't need any such dependency).
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* Fixed some display issues in the microbenchmarks, one of which would
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frequently make the test crash on GNU/Hurd.
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Snappy v1.0.2, April 29th 2011:
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* Relicense to a BSD-type license.
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* Added C bindings, contributed by Martin Gieseking.
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* More Win32 fixes, in particular for MSVC.
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* Replace geo.protodata with a newer version.
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* Fix timing inaccuracies in the unit test when comparing Snappy
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to other algorithms.
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Snappy v1.0.1, March 25th 2011:
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This is a maintenance release, mostly containing minor fixes.
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There is no new functionality. The most important fixes include:
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* The COPYING file and all licensing headers now correctly state that
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Snappy is licensed under the Apache 2.0 license.
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* snappy_unittest should now compile natively under Windows,
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as well as on embedded systems with no mmap().
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* Various autotools nits have been fixed.
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Snappy v1.0, March 17th 2011:
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* Initial version.
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