LevelDB_KV_Sep

作者：韩晨旭 10225101440 李畅 10225102463

Cronologia

gabor@google.com 7263023651 Bugfixes: for Get(), don't hold mutex while writing log. - Fix bug in Get: when it triggers a compaction, it could sometimes mark the compaction with the wrong level (if there was a gap in the set of levels examined for the Get). - Do not hold mutex while writing to the log file or to the MANIFEST file. Added a new benchmark that runs a writer thread concurrently with reader threads. Percentiles ------------------------------ micros/op: avg median 99 99.9 99.99 99.999 max ------------------------------------------------------ before: 42 38 110 225 32000 42000 48000 after: 24 20 55 65 130 1100 7000 - Fixed race in optimized Get. It should have been using the pinned memtables, not the current memtables. git-svn-id: https://leveldb.googlecode.com/svn/trunk@50 62dab493-f737-651d-591e-8d6aee1b9529		13 anni fa
..
builder.cc	A number of smaller fixes and performance improvements:	13 anni fa
builder.h	A number of smaller fixes and performance improvements:	13 anni fa
c.cc	Bugfix for issue 33; reduce lock contention in Get(), parallel benchmarks.	13 anni fa
c_test.c	C binding for leveldb, better readseq benchmark for SQLite.	13 anni fa
corruption_test.cc	Small tweaks and bugfixes for Issue 18 and 19.	13 anni fa
db_bench.cc	Bugfixes: for Get(), don't hold mutex while writing log.	13 anni fa
db_impl.cc	Bugfixes: for Get(), don't hold mutex while writing log.	13 anni fa
db_impl.h	Bugfixes: for Get(), don't hold mutex while writing log.	13 anni fa
db_iter.cc	Bugfixes for iterator and documentation.	13 anni fa
db_iter.h	reverting disastrous MOE commit, returning to r21	13 anni fa
db_test.cc	Bugfixes: for Get(), don't hold mutex while writing log.	13 anni fa
dbformat.cc	A number of smaller fixes and performance improvements:	13 anni fa
dbformat.h	Sun Studio support, and fix for test related memory fixes.	13 anni fa
dbformat_test.cc	@20776309	13 anni fa
filename.cc	@20776309	13 anni fa
filename.h	Sun Studio support, and fix for test related memory fixes.	13 anni fa
filename_test.cc	@20776309	13 anni fa
log_format.h	Sun Studio support, and fix for test related memory fixes.	13 anni fa
log_reader.cc	Small tweaks and bugfixes for Issue 18 and 19.	13 anni fa
log_reader.h	sync with upstream @ 21409451	13 anni fa
log_test.cc	Update from upstream @21551990	13 anni fa
log_writer.cc	sync with upstream @ 21409451	13 anni fa
log_writer.h	reverting disastrous MOE commit, returning to r21	13 anni fa
memtable.cc	A number of smaller fixes and performance improvements:	13 anni fa
memtable.h	A number of smaller fixes and performance improvements:	13 anni fa
repair.cc	Speed up Snappy uncompression, new Logger interface.	13 anni fa
skiplist.h	reverting disastrous MOE commit, returning to r21	13 anni fa
skiplist_test.cc	Sun Studio support, and fix for test related memory fixes.	13 anni fa
snapshot.h	sync with upstream @ 21409451	13 anni fa
table_cache.cc	reverting disastrous MOE commit, returning to r21	13 anni fa
table_cache.h	reverting disastrous MOE commit, returning to r21	13 anni fa
version_edit.cc	Sun Studio support, and fix for test related memory fixes.	13 anni fa
version_edit.h	A number of smaller fixes and performance improvements:	13 anni fa
version_edit_test.cc	@20776309	13 anni fa
version_set.cc	Bugfixes: for Get(), don't hold mutex while writing log.	13 anni fa
version_set.h	Bugfixes: for Get(), don't hold mutex while writing log.	13 anni fa
version_set_test.cc	Small tweaks and bugfixes for Issue 18 and 19.	13 anni fa
write_batch.cc	sync with upstream @ 21409451	13 anni fa
write_batch_internal.h	Small tweaks and bugfixes for Issue 18 and 19.	13 anni fa
write_batch_test.cc	sync with upstream @ 21409451	13 anni fa