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Igor Canadi 038a477b53 Make it easier to start using RocksDB 
Summary:
This diff is addressing multiple things with a single goal -- to make RocksDB easier to use:
* Add some functions to Options that make RocksDB easier to tune.
* Add example code for both simple RocksDB and RocksDB with Column Families.
* Rewrite our README.md

Regarding Options, I took a stab at something we talked about for a long time:
* https://www.facebook.com/groups/rocksdb.dev/permalink/563169950448190/

I added functions:
* IncreaseParallelism() -- easy, increases the thread pool and max_background_compactions
* OptimizeLevelStyleCompaction(memtable_memory_budget) -- the easiest way to optimize rocksdb for less stalls with level style compaction. This is very likely not ideal configuration. Feel free to suggest improvements. I used some of Mark's suggestions from here: https://github.com/facebook/rocksdb/issues/54
* OptimizeUniversalStyleCompaction(memtable_memory_budget) -- optimize for universal compaction.

Test Plan: compiled rocksdb. ran examples.

Reviewers: dhruba, MarkCallaghan, haobo, sdong, yhchiang

Reviewed By: dhruba

CC: leveldb

Differential Revision: https://reviews.facebook.net/D18621
 		2014-05-10 10:49:33 -07:00
..
.gitignore Make it easier to start using RocksDB 2014-05-10 10:49:33 -07:00
Makefile Make it easier to start using RocksDB 2014-05-10 10:49:33 -07:00
README.md Make it easier to start using RocksDB 2014-05-10 10:49:33 -07:00
column_families_example.cc Make it easier to start using RocksDB 2014-05-10 10:49:33 -07:00
simple_example.cc Make it easier to start using RocksDB 2014-05-10 10:49:33 -07:00

README.md

Compile RocksDB first by executing make static_lib in parent dir