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27 commits

Author SHA1 Message Date
Russell Sears
3d707c71b6 fix casts; add missing BEGIN_C_DECLS; designated initializers; libstasis.so now builds + runs under both g++ and gcc! 2013-02-08 18:51:38 -08:00
Gregory Burd
3a559a3b3c merge in changes from svn[r1572..r1601] 
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r1601 | sears.russell@gmail.com | 2012-03-20 18:43:00 -0400 (Tue, 20
Mar 2012) | 1 line

commit bLSM bloom filter to stasis/util, which is where it really
belongs
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r1600 | sears.russell@gmail.com | 2012-03-04 01:58:38 -0500 (Sun, 04
Mar 2012) | 1 line

fix memory leak in skiplist unit test (now it is valgrind clean)
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r1599 | sears.russell@gmail.com | 2012-03-04 01:58:05 -0500 (Sun, 04
Mar 2012) | 1 line

fix typo in finalize type
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r1598 | sears.russell@gmail.com | 2012-03-04 00:59:59 -0500 (Sun, 04
Mar 2012) | 1 line

add comparator and finalizer parameters to skiplist constructor
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r1597 | sears.russell@gmail.com | 2012-03-03 18:23:16 -0500 (Sat, 03
Mar 2012) | 1 line

bugfixes for skiplist
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r1596 | sears.russell@gmail.com | 2012-03-02 15:05:07 -0500 (Fri, 02
Mar 2012) | 1 line

updated concurrentSkipList.  Seeing strange crashes
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r1595 | sears.russell@gmail.com | 2012-03-01 16:51:59 -0500 (Thu, 01
Mar 2012) | 1 line

add progress reports
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r1594 | sears.russell@gmail.com | 2012-02-28 13:17:05 -0500 (Tue, 28
Feb 2012) | 1 line

experimental support for automatic logfile preallocation
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r1593 | sears.russell@gmail.com | 2012-02-28 12:10:01 -0500 (Tue, 28
Feb 2012) | 1 line

add histogram reporting to rawIOPS benchmark
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r1592 | sears.russell@gmail.com | 2012-02-24 16:31:36 -0500 (Fri, 24
Feb 2012) | 1 line

userspace raid 0 implementation
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r1591 | sears.russell@gmail.com | 2012-02-12 01:47:25 -0500 (Sun, 12
Feb 2012) | 1 line

add skiplist unit test, fix compile warnings
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r1590 | sears.russell@gmail.com | 2012-02-12 00:52:52 -0500 (Sun, 12
Feb 2012) | 1 line

fix compile error
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r1589 | sears.russell@gmail.com | 2012-02-12 00:50:21 -0500 (Sun, 12
Feb 2012) | 1 line

fix some bugs in hazard.h surrounding thread list management and
overruns of R under high contention
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r1588 | sears.russell@gmail.com | 2012-02-11 14:23:10 -0500 (Sat, 11
Feb 2012) | 1 line

add hazard pointer for get_lock.  It was implicitly blowing away the
hazard pointer protecting y in the caller
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r1587 | sears.russell@gmail.com | 2012-02-10 18:51:25 -0500 (Fri, 10
Feb 2012) | 1 line

fix null pointer bug
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r1586 | sears.russell@gmail.com | 2012-02-10 18:03:39 -0500 (Fri, 10
Feb 2012) | 1 line

add simple refcounting scheme to concurrentSkipList.  This solves the
problem where a deleted node points to another deleted node, and we
only have a hazard pointer for the first node.
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r1585 | sears.russell@gmail.com | 2012-02-10 14:19:14 -0500 (Fri, 10
Feb 2012) | 1 line

add hazard pointers for update using the smallest free slot first.  The
old method left a race condition, since hazard_scan stops at the first
null pointer.
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r1584 | sears.russell@gmail.com | 2012-02-10 02:45:30 -0500 (Fri, 10
Feb 2012) | 1 line

add hazard pointers for update array
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r1583 | sears.russell@gmail.com | 2012-02-10 00:04:50 -0500 (Fri, 10
Feb 2012) | 1 line

skiplist update: concurrent, but broken
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r1582 | sears.russell@gmail.com | 2012-02-09 17:44:27 -0500 (Thu, 09
Feb 2012) | 1 line

skip list implementation.  Not concurrent yet.
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r1581 | sears.russell@gmail.com | 2012-02-08 13:33:29 -0500 (Wed, 08
Feb 2012) | 1 line

Commit of a bunch of new, unused code: KISS random number generator,
Hazard Pointers, SUX latches (untested) and bit twiddling for
concurrent b-tree
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r1580 | sears.russell@gmail.com | 2012-01-17 19:17:37 -0500 (Tue, 17
Jan 2012) | 1 line

fix typo
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r1579 | sears.russell@gmail.com | 2012-01-11 18:33:31 -0500 (Wed, 11
Jan 2012) | 1 line

static build fixes for linux.  hopefully these do not break macos...
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r1578 | sears.russell@gmail.com | 2012-01-09 19:13:34 -0500 (Mon, 09
Jan 2012) | 1 line

fix cmake under linux
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r1577 | sears.russell@gmail.com | 2012-01-09 18:37:15 -0500 (Mon, 09
Jan 2012) | 1 line

fix linux static binary compilation bugs
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r1576 | sears.russell | 2012-01-09 18:00:08 -0500 (Mon, 09 Jan 2012) |
1 line

port to macos x
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r1575 | sears.russell | 2012-01-09 17:39:43 -0500 (Mon, 09 Jan 2012) |
1 line

add missing _ from sync call name
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r1574 | sears.russell@gmail.com | 2012-01-09 14:26:31 -0500 (Mon, 09
Jan 2012) | 1 line

add -rt flag to static builds
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r1573 | sears.russell@gmail.com | 2011-12-20 23:38:29 -0500 (Tue, 20
Dec 2011) | 1 line

Simple makefile geared toward building libstasis.so and libstasis.a
(and nothing else)
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r1572 | sears.russell@gmail.com | 2011-12-20 22:37:54 -0500 (Tue, 20
Dec 2011) | 1 line

add some missing #include<config.h> lines
 2012-04-21 12:52:31 -04:00
Sears Russell
b126b45bcc Improve sequential write performance of buffer manager. 
This patch adds support for "asyncForce" which forces all pages to disk that
were dirtied before the *previous* call call to asyncForce.  This method
only applies to dirty pages in the Linux file cache (not in the Stasis buffer
pool), and is used by new writeback logic that bounds the amount of such
backlog that exists at any given time.

This patch also changes writeback behavior; the dirty page table now sorts
pages by pageid instead of LSN when it is invoked by writeback.  When it is
invoked by log truncation, it still sorts by LSN.
 2011-10-08 22:01:04 +00:00
Sears Russell
08c8be07b1 add support for fallocate(); enable it by default if it is available at build time. 2011-08-25 21:29:51 +00:00
Sears Russell
9083bca1c3 Implement CLOCK replacement policy, and set it to be the default. Add flags to configure the default replacement policy. 2011-08-23 18:25:26 +00:00
Sears Russell
e692682cf8 remove questionable truncate and append api from handle.c 2011-07-26 19:15:14 +00:00
Sears Russell
1b71865b7d minor log fixes. add stasis_log_chunk_name flag. 2011-04-20 21:50:56 +00:00
Sears Russell
2f664271b4 partial implementation of filePool log format. force and truncate are unimplemented, as is attempting to read unflushed data. 2011-04-18 20:31:19 +00:00
Sears Russell
0a461faa04 add "raid1" a simple mirroring I/O handle implementation 2010-12-03 03:51:24 +00:00
Sears Russell
c7e07c5c5d cleaned up initialization code for stasis handles; it is no longer possible to instantiate the (long broken) non-blocking handle implementation 2010-12-03 02:18:56 +00:00
Sears Russell
36546b3a2d add factory methods for log implementation 2010-11-05 18:53:10 +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
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
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
2d645beb42 cleaned up multipage operations a bit; added stasis_segments_enabled flag 2010-05-11 22:01:37 +00:00
Sears Russell
3c27ed566e add prefetch primitives 2010-03-29 22:29:30 +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
4689582cb5 improve log performance by disabling O_SYNC by default (and use fdatasync instead) 2009-09-12 16:20:13 +00:00
Sears Russell
87218ad929 yet another refactoring; broke groupForce into its own module, removed more static variables and namespace violations 2009-05-13 18:04:53 +00:00
Sears Russell
4b07b538a6 Renamed some methods; fixed bug that caused recovery to create potentially unbounded numbers of concurrent, active transactions. 
(Note: this commit contains quite a few instances of auto-cleaned whitespace....)
 2009-04-11 17:17:42 +00:00
Sears Russell
95e9158847 checkin partially implemented log based on file pool so that svn will compile 2009-01-05 21:57:33 +00:00
Sears Russell
2dcc6598d2 added support for softcommit, and for compile / runtime configuration of stasis log + storefile locations 2008-12-01 22:45:32 +00:00
Sears Russell
b167b98085 * Remove spurious warnings messages from tests that intentionally crash stasis. 
* Move and rename lladd_autoTruncation flag to stasis_truncation_automatic in flags.c
 2007-10-23 23:16:58 +00:00
Sears Russell
c9bbf3af94 Converted page.h to follow new naming convention; documented new page api; begun stasis documentation cleanup. 2007-10-02 00:18:33 +00:00
Sears Russell
519bd515f4 New access method for the buffer manager; write coalescing; runtime bufferManager selection and a few bufferManager bugfixes. 2007-08-20 16:25:08 +00:00