4 commits

Author	SHA1	Message	Date
Abhishek Kona	d29f181923	Fix all the lint errors. ... Summary: Scripted and removed all trailing spaces and converted all tabs to spaces. Also fixed other lint errors. All lint errors from this point of time should be taken seriously. Test Plan: make all check Reviewers: dhruba Reviewed By: dhruba CC: leveldb Differential Revision: https://reviews.facebook.net/D7059	2012-11-28 17:18:41 -08:00
Dhruba Borthakur	aa42c66814	Fix all warnings generated by -Wall option to the compiler. ... Summary: The default compilation process now uses "-Wall" to compile. Fix all compilation error generated by gcc. Test Plan: make all check Reviewers: heyongqiang, emayanke, sheki Reviewed By: heyongqiang CC: MarkCallaghan Differential Revision: https://reviews.facebook.net/D6525	2012-11-06 14:07:31 -08:00
Dhruba Borthakur	d11b637f34	bits_per_key is already configurable. It defines how many bloom bits will be used for every key in the database. ... My change in this patch is to make the Hash code that is used for blooms to be confgurable. In fact, one can specify a modified HashCode that inspects only parts of the Key to generate the Hash (used by booms). Test Plan: none Differential Revision: https://reviews.facebook.net/D4059	2012-07-09 23:06:07 -07:00
Sanjay Ghemawat	85584d497e	Added bloom filter support. ... In particular, we add a new FilterPolicy class. An instance of this class can be supplied in Options when opening a database. If supplied, the instance is used to generate summaries of keys (e.g., a bloom filter) which are placed in sstables. These summaries are consulted by DB::Get() so we can avoid reading sstable blocks that are guaranteed to not contain the key we are looking for. This change provides one implementation of FilterPolicy based on bloom filters. Other changes: - Updated version number to 1.4. - Some build tweaks. - C binding for CompactRange. - A few more benchmarks: deleteseq, deleterandom, readmissing, seekrandom. - Minor .gitignore update.	2012-04-17 08:36:46 -07:00