Sears Russell
c413203ec8
Talloc() now reuses space when possible. It still needs to call slottedCompact() intelligentally. Also, allocationPolicy should support an extra tier
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of pages, so it doesn't suggest ones that aren't already in the buffer pool unless it has to.
2006-07-29 00:56:54 +00:00
Sears Russell
745975112f
Removed an assert that assumed pages aren't reused.
2006-07-25 01:03:07 +00:00
Sears Russell
0725af91be
Fixed page leak in Talloc().
2006-07-21 01:07:09 +00:00
Sears Russell
ffd3bd960b
switched to region allocator, but TpageAlloc currently grabs its own region...
2006-07-20 01:29:39 +00:00
Sears Russell
d26263262b
Completely new blob implementation. Slower than the old one was supposed to be, but is correct, and extremeley
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simple. It simply writes the pre-image and post-image of each blob to the log using TpageSet.
2006-06-21 00:45:18 +00:00
Sears Russell
3e4cac0fe3
Continued cleaning up allocation code. It seems really slow all of a sudden, so this commit probably introduced a performance bug.
2006-06-17 00:25:09 +00:00
Sears Russell
209a6916e5
Updated some comments.
2006-06-16 00:27:02 +00:00
Sears Russell
dc8a3e5d60
Eliminated slottedPreRalloc
2006-06-16 00:05:44 +00:00
Sears Russell
50515ffd23
More steps toward factoring page allocation out of record allocation.
2006-06-15 05:31:20 +00:00
Sears Russell
59bd80a2a8
half-hearted attempt to fix -Wextra warnings...
2006-06-13 23:58:04 +00:00
Sears Russell
a11fbdd9e6
Did away with slottedPreRallocFromPage.
2006-06-13 20:00:46 +00:00
Sears Russell
08ceca11ce
Enabled compactPage in TallocFromPage()
2005-03-24 11:04:06 +00:00
Sears Russell
cf58e1fb72
Transitive closure working!
2005-03-24 04:43:22 +00:00
Sears Russell
890a7385d0
Fixeds cht test / finished error checking within LLADD, but haven't tested error handling yet.
2005-02-24 21:12:36 +00:00
Sears Russell
8bf6ea29ff
Added @todo that details requirements for next version of alloc.
2005-02-10 21:55:35 +00:00
Sears Russell
b8a67cbfb2
Numerous lock manager fixes; more realistic test case for lock manager, added support for optional page-level locking.(Still need to report deadlocks back up to the caller.)
2005-02-10 03:51:09 +00:00
Sears Russell
bb69197a65
Fixed blob implementation (it was impossible to distinguish between a blob and a record of length 12), removed jbhash, and ported cht to linearHashNTA.
2005-01-31 01:29:52 +00:00
Sears Russell
7cf5fdee6e
Re-implemented pageOrientedListNTA from scratch. It's now more flexible, but relies on features that are not provided by Talloc/Tdealloc, so performance isn't as good as it could be.
2005-01-29 01:17:37 +00:00
Sears Russell
17f76264aa
Implemented pageOrientedList, also did some bug fixing, and added some support functions to alloc.c
2005-01-28 03:32:17 +00:00
Sears Russell
b04e71360f
Documentation update.
2005-01-20 21:19:47 +00:00
Sears Russell
55b0ddf1b6
Fixed nasty bug that was causing the LLADD header to be lost (!!)
2004-12-06 01:20:48 +00:00
Sears Russell
443a90ad7c
Implemented TrecordType()
2004-12-01 01:26:25 +00:00
Sears Russell
ec1276f26f
Preliminary version of logical logging linear hash. (No latching yet, and there are some bugs re-opening a closed hash.)
2004-10-18 18:24:54 +00:00
Sears Russell
5064e3fac2
Implemented pages that store fixed sized records efficiently, and a java-style ArrayList data structure that efficiently supports (relatively) clustered, O(1) access time expandable arrays. (This will be used for the hash implementation...)
2004-10-06 06:08:09 +00:00
Sears Russell
96e7af92a4
Added test cases for Tprepare(), implemented some redo-only operations, and started to clean up record allocation/deallocation.
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Also, numerous bugfixes.
2004-10-02 07:29:34 +00:00
Sears Russell
811bc5c710
Implemented a freespace manager that should safely allocate space, even in the face of crashes, and can reclaim unused space (unless an application opens more than one simultaneous transaction that performs allocations)
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Fixed some blob bugs (by adding extra fdatasync() calls).
Began factoring out the page management code so that it is an extenstion, and a less integral part of lladd.
2004-08-21 00:03:30 +00:00
Sears Russell
b4d7883f66
Fixed regressions, major update of page / slotted interfaces in anticipation of moving LLADD towards a generic transactional page system.
2004-08-17 01:46:17 +00:00
Sears Russell
82e3fdb53a
Added (untested) support for whole-page operations, lladdhash now works.
2004-08-03 02:04:56 +00:00
Sears Russell
8cb59f0c23
Blobs are now re-entrant.
2004-07-26 20:37:04 +00:00
Sears Russell
422198418a
bufferMananger is (really!) re-entrant now, performed big refactoring to prevent deadlocks, check_transactional2 ran overnight without coring, w/ 25 threads, and 10000 allocate/write/reads per thread. (The whole test suite was run in a loop...)
2004-07-23 20:21:44 +00:00
Sears Russell
0ce77903fb
Continuing work on multi-threading. r/w access to buffer manager getting close, but still buggy.
2004-07-20 03:40:57 +00:00
Sears Russell
9712e291e6
Moved page.h and some of the logging headers out of the public API.
2004-07-14 21:25:59 +00:00
Sears Russell
2b42451280
Cleaning up bufferManager / page for locking. Want to limit access to the Page struct.
2004-07-14 20:49:18 +00:00
Sears Russell
e1d3bf7a0c
Ported LLADD to Fedora, cleaned up autoconf setup, and numerouse #includes that were problematic.
2004-07-06 01:22:18 +00:00
Sears Russell
f8015a5687
Documentation update, added latch profiling tools.
2004-07-04 00:46:49 +00:00
Sears Russell
af152bd08e
Logwriter can now handler partial log entries correctly (it ignores them)
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Buffer Mananger no longer steals pages pre-maturely
Alloc is an operation, and correct.
Caching broken out into a new module
Wrote a utility to translate a log file into human-readable ascii.
2004-06-30 01:09:57 +00:00
Sears Russell
c4fac084b8
Cleaned out old cruft, such as commented out code, dead data structures, and dead files. sloccount went from $75,000 to $50,000 on src/lladd. ;)
2004-06-28 22:48:02 +00:00
Sears Russell
fab0e6cbbd
Bugfixes ; blobs pass regression. Next stop: Delete old cruft.
2004-06-28 21:10:10 +00:00
Sears Russell
d1f76f0b4a
Initial revision
2004-06-24 21:10:31 +00:00
