Sears Russell
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00cf4eb4ce
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fix bug in lru backoff, add flag for buffer manager stress testing, add support for buffer manager handles to concurrentBufferManager, fix support in bufferHash
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2010-09-28 23:50:07 +00:00 |
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Sears Russell
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ae04cee76c
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exponential backoff and power of two bucket flag for concurrenntWrapper (disabled by default)
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2010-09-27 00:11:34 +00:00 |
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Sears Russell
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9577aca365
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add missing #include
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2010-09-26 22:56:50 +00:00 |
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Sears Russell
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ba4e61e3d4
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avoid needless insertions of dirty pages into LRU in sequential write mode.
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2010-09-26 22:31:36 +00:00 |
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Sears Russell
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4fe5bcaa72
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Refactored doubleLinkedList and lruFast. The linked list API is now less insane, and lruFast is simpler. Added asserts to detect double insertion of nodes into the lists / lru
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2010-09-24 17:56:51 +00:00 |
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Sears Russell
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7815d2f792
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add assert to sequential-optimized write path
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2010-09-24 17:51:09 +00:00 |
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Sears Russell
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a3e7fc0fe2
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add hint: stasis_buffer_manager_hint_writes_are_sequential. if set to 1, then only one thread will write back at a time, which leads to greatly improved sequential write throughput
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2010-09-23 23:09:43 +00:00 |
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Sears Russell
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9a46882ae3
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port to new rbtree implementation (still buggy); performance tweaks for sequential throughput (this commit only changes non_blocking which is disabled by default, and in all sane runtime configurations)
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2010-09-23 22:51:13 +00:00 |
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Sears Russell
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9ffc06c824
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fix compilation on old boxes
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2010-09-23 22:48:23 +00:00 |
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Sears Russell
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cb31593d1f
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fix typo in disabled code
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2010-09-23 22:48:06 +00:00 |
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Sears Russell
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58c909a2ea
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add implementations of some more rblookup flags to the stl red black tree adapter
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2010-09-23 20:38:50 +00:00 |
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Sears Russell
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4a5d14f2c6
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more non_blocking fixes. now the unit test passes
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2010-09-23 19:52:54 +00:00 |
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Sears Russell
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774ccfb002
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whitespace and comment cleanup
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2010-09-23 18:24:03 +00:00 |
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Sears Russell
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1048109ab8
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initial checkin of buffer manager benchmark
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2010-09-23 17:47:06 +00:00 |
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Sears Russell
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d3c8c1c003
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remove overly-aggressive asserts from last checkin
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2010-09-23 00:31:37 +00:00 |
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Sears Russell
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546bb4c767
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fix rare latch corruption in concurrentBufferManager; add some asserts
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2010-09-23 00:21:04 +00:00 |
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Sears Russell
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62e7663c27
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fix + use macro
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2010-09-23 00:19:34 +00:00 |
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Sears Russell
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c3b9345bd2
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initial checkin of ruby bindings
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2010-09-20 16:09:44 +00:00 |
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Sears Russell
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aa8142d708
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remove apparent race in concurrentHash.c
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2010-09-17 01:38:40 +00:00 |
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Sears Russell
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889311a303
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un-rollback -r1403. It was not the source of the assert failure.
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2010-09-17 01:16:46 +00:00 |
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Sears Russell
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bb904e85cf
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add latch-free slotted pages, and a bug-fix in page.c
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2010-09-17 01:10:42 +00:00 |
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Sears Russell
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e6067ae60b
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rollback -r1403, which was leading to tmp == p->TLS assertion failures
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2010-09-02 17:59:00 +00:00 |
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Sears Russell
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00e474e3fe
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Fix bug in LinearHashNTA: inserting over an old key, then aborting set deleted the old key instead of restoring it to its original value
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2010-09-01 04:01:20 +00:00 |
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Sears Russell
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3b8679d09b
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call loadUninitializedPage in sequential throughput benchmark
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2010-08-27 19:43:33 +00:00 |
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Sears Russell
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c2cb334506
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add comment to explain mysterious policy in concurrentWrapper
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2010-08-25 16:37:05 +00:00 |
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Sears Russell
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9b0ee8e856
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get rid of deadlock in concurrentBufferManager writeBackPage. The deadlock was due to concurrent reads in higher level code
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2010-08-19 23:16:02 +00:00 |
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Sears Russell
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52055aa20f
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whitespace cleanup
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2010-08-19 17:48:39 +00:00 |
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Sears Russell
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e5528ce218
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relaxed page latching requirements; page.c, and dirtyPageTable no longer check / rely on holding rwlatch; removed (now) unnecessary latching from unit tests
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2010-08-06 00:19:19 +00:00 |
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Sears Russell
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b722adff8a
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added DEBUG() statements
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2010-08-05 23:07:52 +00:00 |
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Sears Russell
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0c37a4bccc
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fix performance-degrading typo
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2010-07-26 23:56:05 +00:00 |
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Sears Russell
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ad0fe63c2e
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implement writeBackPage for bufferHash.c
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2010-07-26 23:55:43 +00:00 |
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Sears Russell
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7a27e39e5b
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MAX_BUFFER_SIZE is now a runtime (pre-tinit) option; clean up some doxygen warnings
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2010-07-16 16:52:08 +00:00 |
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Sears Russell
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e2ba421a53
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cleaned up buffer manager comments, added some asserts
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2010-07-13 18:17:25 +00:00 |
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Sears Russell
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ee7aaff9ec
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add writeback starvation avoidance logic to concurrentBufferManager
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2010-07-09 01:55:54 +00:00 |
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Sears Russell
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f376d46090
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pull multiops outside of the log latch. (how embarassing...)
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2010-06-15 23:12:38 +00:00 |
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Sears Russell
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d4804bd926
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add rwlc: A read-write lock that can wait on pthread conditions (assuming it holds the write lock)
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2010-05-27 01:48:27 +00:00 |
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Sears Russell
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97a2fdd600
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fix null pointer dereference when recovering loser transaction that makes use of multipage operations
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2010-05-19 01:22:40 +00:00 |
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Sears Russell
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71292538e8
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Amortize bucket initialization costs for linear hash tables. The best case improvement (~ 20%) is seen with hashes with fixed length key/value pairs and insert-only workloads
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2010-05-12 17:51:20 +00:00 |
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Sears Russell
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dc1f799a37
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TarrayListAlloc() and TarrayListExtend() now generate O(1) bytes of log entries; they use the new multipage operation type.
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2010-05-11 23:34:13 +00:00 |
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Sears Russell
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820f706faf
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TarrayListExtend now zeros out the contents of the newly allocated records (this is implemented by having fixed.c zero out the records)
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2010-05-11 23:27:22 +00:00 |
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Sears Russell
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75ae7103fc
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fix crash in recovery redo that was caused by multipage operations
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2010-05-11 23:17:09 +00:00 |
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Sears Russell
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2d645beb42
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cleaned up multipage operations a bit; added stasis_segments_enabled flag
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2010-05-11 22:01:37 +00:00 |
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Sears Russell
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07df7c064a
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add support for multi-page operations
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2010-05-11 00:17:07 +00:00 |
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Sears Russell
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31d045efba
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add link to my dissertation
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2010-05-05 19:27:27 +00:00 |
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Sears Russell
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85ad4dd316
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updated getting started text
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2010-05-05 18:54:45 +00:00 |
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Sears Russell
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ffa4f18283
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add tryToWriteBackPage. concurrentBufferManager is now compatible with FORCE mode transactions.
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2010-04-28 00:05:00 +00:00 |
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Sears Russell
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ee6d0768d3
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Fix failing assert by replacing trywritelock with writelock in concurrentBufferManager. Revision -r1380 relaxed an invariant, causing the trylock to sometimes contend with other threads
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2010-04-26 04:07:38 +00:00 |
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Sears Russell
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74803d354e
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fix latch ordering in concurrent buffer manager. It no longer does a lock(p->loadlatch) while holding a hashtable bucket latch. Instead, it trylocks, then compensates for in progress changes if the latch fails.
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2010-04-23 23:51:12 +00:00 |
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Sears Russell
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04de939e42
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fix null pointer derefence in lruFast.c; add unit tests to check for this bug
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2010-04-21 21:34:00 +00:00 |
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Sears Russell
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87ba38adb7
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fix compilation when CONCURRENT_LRU is defined; make it the default (since it is only used by concurrentBufferManager)
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2010-04-20 03:56:47 +00:00 |
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