google/leveldb v1.6

Release 1.6

on GitHub

Highlights

• Mmap at most 1000 files on Posix to improve performance for large databases.
• Support for more architectures (thanks to Alexander K.)

Building and porting

• HP/UX support (issue #132)
• AtomicPointer for ia64 (issue #129)
• Sparc v9 support (issue #130)
• Atomic ops for powerpc
• Use -fno-builtin-memcmp only when using g++
• Simplify IOS build rules (issue #120)
• Use CXXFLAGS instead of CFLAGS when invoking C++ compiler (issue #124)
• Fix snappy shared library problem (issue #100)
• Fix shared library installation path regression
• Endian-ness detection tweak for FreeBSD

Bug fixes

• Stop ignoring FLAGS_open_files in db_bench
• Make bloom test behavior agnostic to endian-ness

Performance

• Limit number of mmapped files to 1000 to improve perf for large dbs
• Do not delay for 1 second on shutdown path (issue #131)

Misc

• Make InMemoryEnv return a no-op logger
• C binding now has a wrapper for free (issue #123)
• Add thread-safety annotations
• Added an in-process lock table (issue #126)
• Make RandomAccessFile and SequentialFile non-copyable