9 Commits

Author	SHA1	Message	Date
Stephen Atherton	61558eea04	Implemented page preloading on BTree cursor seeks to enable hiding latency on soon-to-be-read sibling pages. Added random scans with various preload sizes to the set performance unit test. ObjectCache now tracks hits, misses, and pages which were preloaded but then never used prior to eviction. BTree pages no longer store flags because height is sufficient. Removed virtual specifier in classes not designed to be further inherited. Removed old prototype code (PrefixTree, IndirectShadowPager, MemoryPager) as some interface changes are incompatible and they are no longer worth maintaining.	2019-11-11 09:54:22 -08:00
Stephen Atherton	6a57fab431	Bug fixes in lazy subtree deletion, queue pushFront(), queue flush(), and advancing the oldest pager version. CommitSubtree no longer forces page rewrites due to boundary changes. IPager2 and IVersionedStore now have explicit async init() functions to avoid returning futures from some frequently used functions.	2019-10-22 17:17:29 -07:00
Stephen Atherton	44175e0921	COWPager will no longer expire read Snapshots that are still in use.	2019-10-18 01:27:00 -07:00
Stephen Atherton	24e03a55ad	Some code cleanup and updated TODOs.	2019-09-28 13:27:00 -07:00
Stephen Atherton	2801298ae8	Checkpointing incomplete and correctness-breaking progress on adding single-version mode to VersionedBTree.	2019-04-29 17:00:29 -07:00
Robert Escriva	268093a96d	Adjust all includes to be relative to the root. ... Remove the use of relative paths. A header at foo/bar.h could be included by files under foo/ with "bar.h", but would be included everywhere else as "foo/bar.h". Adjust so that every include references such a header with the latter form. Signed-off-by: Robert Escriva <rescriva@dropbox.com>	2018-10-19 17:35:33 +00:00
Stephen Atherton	25f958ac3b	Bug fixes. Finished backward iteration on Cursor. Correctness range verification now also reads the range in reverse and verifies the result.	2017-09-17 04:38:01 -07:00
Stephen Atherton	125d8168b4	Checkpointing progress on range reads (ordered iteration of user visible kv pairs via cursor). Added InternalCursor class which is used for all seeks and reads and sees the multi version, fragmented kv pairs and clears. Fixed a bug in commit which was discovered by the range read test where kv pairs (full or partial) could be missing from the tree but only for versions where they did not change. The write verification test did not find this because it only verifies exactly the changed versions of each key. The range test is not finished yet.	2017-09-15 05:19:39 -07:00
Stephen Atherton	b65ad3563c	Merge branch 'master' into feature-redwood ... # Conflicts: # fdbserver/fdbserver.vcxproj # fdbserver/fdbserver.vcxproj.filters	2017-06-09 14:56:41 -07:00