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- Implemented Get() directly instead of building on top of a full merging iterator stack. This speeds up the "readrandom" benchmark by up to 15-30%. - Fixed an opensource compilation problem. Added --db=<name> flag to control where the database is placed. - Automatically compact a file when we have done enough overlapping seeks to that file. - Fixed a performance bug where we would read from at least one file in a level even if none of the files overlapped the key being read. - Makefile fix for Mac OSX installations that have XCode 4 without XCode 3. - Unified the two occurrences of binary search in a file-list into one routine. - Found and fixed a bug where we would unnecessarily search the last file when looking for a key larger than all data in the level. - A fix to avoid the need for trivial move compactions and therefore gets rid of two out of five syncs in "fillseq". - Removed the MANIFEST file write when switching to a new memtable/log-file for a 10-20% improvement on fill speed on ext4. - Adding a SNAPPY setting in the Makefile for folks who have Snappy installed. Snappy compresses values and speeds up writes. git-svn-id: https://leveldb.googlecode.com/svn/trunk@32 62dab493-f737-651d-591e-8d6aee1b9529
14 lines
494 B
Plaintext
14 lines
494 B
Plaintext
ss
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- Stats
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db
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- Maybe implement DB::BulkDeleteForRange(start_key, end_key)
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that would blow away files whose ranges are entirely contained
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within [start_key..end_key]? For Chrome, deletion of obsolete
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object stores, etc. can be done in the background anyway, so
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probably not that important.
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After a range is completely deleted, what gets rid of the
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corresponding files if we do no future changes to that range. Make
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the conditions for triggering compactions fire in more situations?
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