Sears Russell
6525949f56
add paranoid checks to concurrentHash and concurrentBufferManager; tightened up invariants maintained by concurrentHash
2010-09-30 19:27:18 +00:00
Sears Russell
00cf4eb4ce
fix bug in lru backoff, add flag for buffer manager stress testing, add support for buffer manager handles to concurrentBufferManager, fix support in bufferHash
2010-09-28 23:50:07 +00:00
Sears Russell
ae04cee76c
exponential backoff and power of two bucket flag for concurrenntWrapper (disabled by default)
2010-09-27 00:11:34 +00:00
Sears Russell
4fe5bcaa72
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
2010-09-24 17:56:51 +00:00
Sears Russell
a3e7fc0fe2
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
2010-09-23 23:09:43 +00:00
Sears Russell
58c909a2ea
add implementations of some more rblookup flags to the stl red black tree adapter
2010-09-23 20:38:50 +00:00
Sears Russell
bb904e85cf
add latch-free slotted pages, and a bug-fix in page.c
2010-09-17 01:10:42 +00:00
Sears Russell
b722adff8a
added DEBUG() statements
2010-08-05 23:07:52 +00:00
Sears Russell
7a27e39e5b
MAX_BUFFER_SIZE is now a runtime (pre-tinit) option; clean up some doxygen warnings
2010-07-16 16:52:08 +00:00
Sears Russell
e2ba421a53
cleaned up buffer manager comments, added some asserts
2010-07-13 18:17:25 +00:00
Sears Russell
ee7aaff9ec
add writeback starvation avoidance logic to concurrentBufferManager
2010-07-09 01:55:54 +00:00
Sears Russell
d4804bd926
add rwlc: A read-write lock that can wait on pthread conditions (assuming it holds the write lock)
2010-05-27 01:48:27 +00:00
Sears Russell
dc1f799a37
TarrayListAlloc() and TarrayListExtend() now generate O(1) bytes of log entries; they use the new multipage operation type.
2010-05-11 23:34:13 +00:00
Sears Russell
820f706faf
TarrayListExtend now zeros out the contents of the newly allocated records (this is implemented by having fixed.c zero out the records)
2010-05-11 23:27:22 +00:00
Sears Russell
2d645beb42
cleaned up multipage operations a bit; added stasis_segments_enabled flag
2010-05-11 22:01:37 +00:00
Sears Russell
07df7c064a
add support for multi-page operations
2010-05-11 00:17:07 +00:00
Sears Russell
31d045efba
add link to my dissertation
2010-05-05 19:27:27 +00:00
Sears Russell
85ad4dd316
updated getting started text
2010-05-05 18:54:45 +00:00
Sears Russell
ffa4f18283
add tryToWriteBackPage. concurrentBufferManager is now compatible with FORCE mode transactions.
2010-04-28 00:05:00 +00:00
Sears Russell
c7fa929e71
This fixes in Stasis issue 22.
...
Replacement policies now track the pin count of each page that they interact with. This behavior used to live in bufferHash, and had never been ported to concurrentBufferManager.
For various reasons, the pin counts have to be updated atomically with the LRU state. This would be very difficult to do inside of concurrentBufferManager, which sometimes needs to add and remove pages to replacement policies without holding any other latches.
2010-04-20 01:09:32 +00:00
Sears Russell
887832582c
expose stasis_handle_t up through the buffer manager; add sequential I/O hinting; fix stupid busy-wait in prefetch
2010-04-12 20:54:10 +00:00
Sears Russell
7c5eb2a7e9
added dup method to io handles
2010-04-08 23:50:01 +00:00
Sears Russell
ff2f2e9e1e
add TregionPrefetch()
2010-03-31 22:41:33 +00:00
Sears Russell
3c27ed566e
add prefetch primitives
2010-03-29 22:29:30 +00:00
Sears Russell
8a5bbd9a38
silence compiler warning
2010-03-29 22:28:32 +00:00
Sears Russell
6deb34f5b2
fix handling of loadPageForOperation during recovery; initialize rid.size in slottedLast
2010-03-22 19:56:55 +00:00
Sears Russell
5ffd1110e9
Added concept of "transaction fingerprints"
...
The region allocator marks freed regions "Condemned" before actually freeing them. Condemned regions are associated
with a transaction; before they can be reused / coalesced the transaction that condemned them must complete.
The region allocator used "TisActiveTransaction(xid)" to determine whether a given transaction had completed. The
problem is that Stasis now reuses transaction id's, and condemned regions were never reclaimed in practice. A transaction
fingerprint is a unique identifier (currently transaction id, rec_lsn) that can be used to distinguish transactions that
did not execute concurrently.
I considered an alternative design based upon end-of-transaction actions. This would have worked as well, but would
have been a more invasive change.
2010-02-18 19:12:46 +00:00
Sears Russell
4e100479d1
Add TarrayListDealloc() to arrayList. Remove one region allocation from each array list alloc. Add unit test for dealloc.
...
Also, removed some old compensations cruft.
2010-02-18 04:12:39 +00:00
Sears Russell
98e0cb1fab
implement TregionSize(), add TregionForce()
2010-02-12 16:44:28 +00:00
Sears Russell
0afb9177ac
C++ compatibility fix
2010-02-11 22:18:49 +00:00
Sears Russell
1ff9afb753
added new constant: INVALID_SIZE
2010-02-11 20:36:33 +00:00
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