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188 commits

Author SHA1 Message Date
Sears Russell
49979ffa52 unit test for libredblack 2010-01-21 23:48:43 +00:00
Sears Russell
dbf253275f fix nested top action log race; because of a refactoring mistake, it was releasing a mutex without acquiring it... 2010-01-21 20:27:35 +00:00
Sears Russell
250223086c reordered includes for compatibility with gcc3 2010-01-21 00:03:17 +00:00
Sears Russell
f1f1d888e4 avoid use of -Wno-variadic-macros, which causes an error with gcc 3. 2010-01-20 23:51:54 +00:00
Sears Russell
b1f7d1947a more log refactoring. safeWrites now holds a latch across reserve_entry, write_entry, and write_entry_done 2010-01-19 02:14:09 +00:00
Sears Russell
c8cc188b71 unsigned int -> uint32_t 2010-01-19 01:47:13 +00:00
Sears Russell
d71e248291 removed freeLogEntry 2010-01-11 20:41:59 +00:00
Sears Russell
c30aaa3a1a fix compiler warning; -1 is not comparable to entry->type 2010-01-07 21:50:17 +00:00
Sears Russell
1af589dd18 remove malloc and memcpy from the in_memory_log read path 2009-12-31 23:25:56 +00:00
Sears Russell
1409a9eb27 more refactoring; log handles now manage their log entries memory 2009-12-31 23:01:37 +00:00
Sears Russell
a5788688c8 refactor getUpdateArgs; remove a bunch of casts, fix a bunch of warnings 2009-12-31 20:20:47 +00:00
Sears Russell
9aa1d9d652 pull memcpy out of allocUpdateEntry() 2009-12-31 19:30:40 +00:00
Sears Russell
32e40c949d added log modes to sequentialThroughput benchmark, added methods for concurrent appends to log api (and stubbed them out) 2009-12-31 19:02:34 +00:00
Sears Russell
7ff80f37ef add deferred, end of transaction callbacks. addresses issue 15 2009-12-15 06:30:37 +00:00
Sears Russell
efc6a0eabd add missing function declaration 2009-12-10 01:53:15 +00:00
Sears Russell
cd8c63889d clarify documentation 2009-12-09 19:55:27 +00:00
Sears Russell
83a0ec68fe fix rose bit rot, have unintialized page clear the impl pointer (for tidyness), remove some resolved @todos. 2009-12-04 19:33:09 +00:00
Sears Russell
7d1b702239 revert part of opensolaris patch--pack recordids again 2009-11-30 01:01:30 +00:00
Sears Russell
2ff421bff0 initial opensolaris port 2009-11-29 03:22:36 +00:00
Sears Russell
2535f69fbc switch the concurrent hash to use lru->getStaleAndRemove; fix crashes due to partial leak of thread local pages on thread shutdown 2009-11-24 01:43:36 +00:00
Sears Russell
38b999dfed add missing stlredblack.h header 2009-11-24 01:41:55 +00:00
Sears Russell
675bdce24a wrote some wrappers that emulate redblack; default to stl tree for now 2009-11-24 00:24:18 +00:00
Sears Russell
1b0c10b37b clean up handling of uninitialized pages (removes some special case code) 2009-11-09 23:02:27 +00:00
Sears Russell
795e044ab9 documentation fix 2009-11-09 22:58:37 +00:00
Sears Russell
b4a0f2436b concurrent lru implementation for new buffer manager 2009-11-09 20:53:05 +00:00
Sears Russell
8bd0616f97 new concurrent buffer manager 2009-11-09 19:50:00 +00:00
Sears Russell
f5e3ab2d91 concurrent hashtable seems to be working; still need to work out atomicity primitives (eg; options to leave the bucket locked on success) 2009-10-19 21:55:25 +00:00
Sears Russell
1cf16f62f2 add optional support for gcc atomics to transaction table 2009-10-15 22:46:25 +00:00
Sears Russell
e6a718a7f9 improved concurrency for transaction table 2009-10-15 20:11:43 +00:00
Sears Russell
331f680c09 partial rewrite of transaction table to reduce thread contention 2009-10-15 02:33:08 +00:00
Sears Russell
4565aff9de more refactoring; no more globals in transactionTable.c 2009-10-14 21:22:50 +00:00
Sears Russell
dbe3ecf0d0 refactoring transaction table; moved implementation into its own file. still need to remove globals 2009-10-14 18:57:50 +00:00
Sears Russell
20ef74b104 use pthread_rwlock instead of rwlock userspace emulation of it 2009-10-13 00:29:35 +00:00
Sears Russell
20a3fe9df5 add support for soft commits, and making prior soft commits durable 2009-10-12 19:16:41 +00:00
Sears Russell
942ba7fffc bugfixes + support for hard limits on log size 2009-10-08 22:48:58 +00:00
Sears Russell
6a02f2f159 buffer manager implementation is now determined by an overridable factory method 2009-10-05 22:39:09 +00:00
Sears Russell
24650fa190 buffer manager refactoring; started work on new dirty page table writeback interface (to avoid circular dependencies) 2009-10-05 21:19:01 +00:00
Sears Russell
4689582cb5 improve log performance by disabling O_SYNC by default (and use fdatasync instead) 2009-09-12 16:20:13 +00:00
Sears Russell
c4e80b41b5 more include cleaning on alloc, begin cleaning of bufferHash 2009-08-22 21:29:27 +00:00
Sears Russell
1ce1496226 dependency cleanups; removed compenastions from alloc.c 2009-08-22 00:01:02 +00:00
Sears Russell
94c542f8b1 Increase dirtyPageTable concurrency 
Add special-casing of lhtable; special case for buffer manager.
 2009-08-14 06:31:13 +00:00
Sears Russell
dd0bcae074 add thread synchronization logic to ensure that only one thread is performing writeback at a time. This fixes weird I/O interleavings on some machines 2009-08-13 23:18:49 +00:00
Sears Russell
0154f7d29d IMPORTANT API CHANGE: stasis_dirty_page_table_flush_range() no longer force writes to disk. You now need to call forcePageRange() after flush page range returns. 
This commit should significantly improve sequential write thoughput.

I found a segfault bug this morning, but cannot reproduce.  Could be a heisenbug, or could have been a hardware fault (gojira repeatedly kernel paniced, then both problems went away...)
 2009-08-13 05:53:48 +00:00
Sears Russell
0cc65aefaf Remove LRU-ordered writeback. Instead, writeback pages sequentially once some fraction of the page file is dirty. Also. further simplifies writeback code. 2009-08-11 17:23:43 +00:00
Sears Russell
907a24b68e dirty page table flush was pinning pages, then asserting they were not pinned; updated page writeback api to allow correct usage 2009-08-08 01:43:03 +00:00
Sears Russell
c92ee87c32 improved behavior for sequential I/O performance, fixed races during writeback 2009-08-07 18:27:52 +00:00
Sears Russell
a6aa8ed942 added method to access dirtyPageTable 2009-08-05 20:02:33 +00:00
Sears Russell
5b10bcc63b Reimplemented allocationPolicy.c; updated API + added more cases to the unit tests. 2009-08-05 06:35:11 +00:00
Sears Russell
c961b34903 forgot to commit b-tree source files 2009-07-29 21:04:08 +00:00
Sears Russell
ebd6b14dbf single-page btrees are working 2009-07-29 21:03:16 +00:00