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134 commits

Author SHA1 Message Date
Gregory Burd
4ae8ffb4cd Update debugging messages a bit. Fix a bug in the signature function. 2013-06-18 13:49:25 -04:00
Gregory Burd
34e88c9234 Add some debugging output. 2013-06-18 13:12:10 -04:00
Gregory Burd
50e24d0f48 Add a longer, multi-table test. Use a release version of WiredTiger from now on. 2013-06-18 09:21:58 -04:00
Gregory Burd
53307e8c01 A great deal of cleanup. EUnit and EQC tests pass. 2013-06-14 16:57:53 -04:00
Gregory Burd
ff7d1d6e20 WIP: further simplifying context cache 2013-06-14 10:52:45 -04:00
Gregory Burd
7952358781 WIP: cache wasn't returning items found 2013-06-12 09:08:09 -04:00
Gregory Burd
4460434db1 WIP: remove potential for infinite loops with CAS and fix a few issues in async 2013-06-12 08:09:51 -04:00
Gregory Burd
110b482962 Some paranoia and a few fixes 2013-06-11 12:13:06 -04:00
Gregory Burd
8ea866bf20 Logic inversion on CAS() operation. 2013-06-10 16:18:55 -04:00
Gregory Burd
2a4b8ee7d2 WIP: simplify the cache from hash-of-lists to list; use a CAS() operation to protect the most-recently-used (mru) list. 2013-06-10 14:31:59 -04:00
Gregory Burd
b2c0b65114 Fixes for OS/X and whitespace cleanup. 2013-06-06 15:16:50 -04:00
Gregory Burd
0fef28de92 WIP: basho_bench tests are running fine now, need more work to ensure cache is functioning properly. 2013-06-05 11:41:41 -04:00
Gregory Burd
778ba20352 WIP: a bit of cleanup fixes a few mistakes 2013-06-04 17:21:50 -04:00
Gregory Burd
f1b7d8322d WIP: replcae the kbtree with khash, we don't need the tree features (yet, if ever) and hash is faster; add a most-recently-used stash for contexts as it's highly likely that worker threads will do many operations with the same shape/signature of session/cursors/tables/config and that path can be lock-free as well making it much faster (one would hope); somewhere something is stepping on read-only ErlNifBinary data and so a crc check is failing and causing the runtime to abort, that's the latest item to find/fix. 2013-06-04 14:45:23 -04:00
Gregory Burd
b002294c4e WIP: all tests (but drop) passing again, need to fix that and valgrind next. 2013-05-31 20:32:02 -04:00
Gregory Burd
9468870e1f WIP: use a log2 histogram to track how long items live in the cache, evict items which have been in cache greater than the mean time. 2013-05-30 17:10:51 -04:00
Gregory Burd
15fbc71ea7 WIP: pieces in place, need to work out the kinks now. 2013-05-30 14:21:34 -04:00
Gregory Burd
f0d5baeb0e WIP: more caching work, still not done. 2013-05-29 14:57:35 -04:00
Gregory Burd
a2cd1d562c WIP: devising a better way to cache/reuse session/cursor pairs. 2013-05-28 16:14:19 -04:00
Gregory Burd
013251e6d9 Update WiredTiger statistics less frequently and fix a build script 
mistake preventing checking out by branch name.
 2013-05-14 13:51:44 -04:00
Gregory Burd
786142ce73 Add a bit of statistics tracking for two reasons, a) to help inform 
where a request should be enqueded and b) to track request latency.
 2013-05-01 22:02:37 -04:00
Gregory Burd
ae64a5e26f Move async nif struct definition back to where it belongs. 2013-05-01 22:02:21 -04:00
Gregory Burd
d1d648af1e Now matches against proper library name and prevents rebuilding when unnecessary. 2013-05-01 22:00:43 -04:00
Gregory Burd
7c9c3b78db Remove this vestige of bzip2 support. 2013-05-01 21:59:54 -04:00
Gregory Burd
12fd9134fa Add a few placeholders for missing functions. 2013-05-01 21:59:12 -04:00
Gregory Burd
d93f0bc162 A more friendly approach to make clean in c_src. 2013-04-26 18:57:17 -04:00
Gregory Burd
bfc180eeb3 Merge branch 'master' of github.com:basho-labs/wterl 
Conflicts:
	c_src/wiredtiger-build.patch
 2013-04-26 10:37:06 -04:00
Gregory Burd
f1cb6f8c61 Remove support for bzip2. Change build_deps.sh to only remove the 
build files from wiredtiger when cleaning rather than all the files.
 2013-04-26 10:34:57 -04:00
Gregory Burd
eafee02865 Only start 2 * num_queues worker threads initially. num_queues is generally 
equal to the number of cores reported by Erlang (info.scheduler_threads) which
is either determined automatically by the Erlang BEAM runtime or via the +S
flag.  The minimum num_queues is 2, so the minimum number of workers is 4.  The
maximum number of workers is ASYNC_NIF_MAX_WORKER_QUEUE_SIZE (currently set to
128), but that would only happen if there were 64 cores (or you set +S 64:64 at
startup).
 2013-04-26 10:15:15 -04:00
Gregory Burd
c410312c40 Switch to the develop branch. 2013-04-26 10:07:10 -04:00
Gregory Burd
3a51afcc20 Copy paste error in patch file prevented proper build arguments for bzip2. 2013-04-25 16:36:17 -04:00
Gregory Burd
422dcfda89 Return 'eagain' when request queue is full and then try the request again. 
In the worst case is the request queue remains full and we loop between
the NIF and Erlang forever trying over and over to enqueue the request. If
that happens we shouldn't take schedulers offline as the NIF calls are fast
and we shouldn't run out of memory as that is bounded.  CPU will show a lot
of activity, but progress will continue in Erlang.
 2013-04-25 15:18:23 -04:00
Gregory Burd
6b393ac47c Keep allocated req and ErlNifEnv around for reuse rather than re-alloc'ing them on each request should save us some overhead on the hot path. 2013-04-25 11:30:11 -04:00
Gregory Burd
46243ff54a Remove debug compiler flags. 2013-04-23 15:00:44 -04:00
Gregory Burd
fc59ae3f90 WIP: Finished transitioning to a gen_server and a few other tasks. This works 
except that when trying to enif_send a bunch of messages eventually one causes
a segv just after reporting: size_object: bad tag for 0x80
 2013-04-22 17:45:48 -04:00
Gregory Burd
652771003e WIP: a good start, I need to switch over wterl_event_handler to be a 
gen_server and I need to add a way to set the pid of the message handler
process to the NIF API.
 2013-04-22 09:52:21 -04:00
Gregory Burd
ac59cd69dd Check return from kn_init. WiredTiger truncate doesn't require you to position cursors for the range to be truncated. 2013-04-21 11:14:48 -04:00
Gregory Burd
fae6831580 Ensure that the env is clear when signaling shutdown. 2013-04-21 11:11:17 -04:00
Gregory Burd
bfe56136d8 * Be sure to release the reqs mutext on shutdown. 2013-04-20 08:28:38 -04:00
Gregory Burd
3310129918 * Check to make sure that all ASYNC_NIF_REPLY() calls are at the end of their 
blocks, just before return and after releasing any local resources or locks.

* Check the return value of when setting up cursor caches so as not to miss an
ENOMEM or other error.

*Cleanup and free resources when closing a connection handle.

* Add a few missing mutex unlock calls on error paths.

* Ensure all resources are free'd/released/closed during truncate error paths.

* Free up alloc'ed copies of keys, cursor handles and sessions on unload.
 2013-04-20 07:38:11 -04:00
Gregory Burd
01a79a08c0 Add a comment and remove an mutext unlock on error because this function is not 
where the lock is acquired.
 2013-04-20 06:13:41 -04:00
Gregory Burd
b936b99531 Minor fix. 2013-04-19 15:00:57 -04:00
Gregory Burd
d505f7f9c8 Whitespace. Call wterl:drop not truncate for drop calls and set force 
to true when calling so that we ignore ENOENT.  Change the session estimate
down a bit.
 2013-04-19 14:55:32 -04:00
Gregory Burd
40bdda15bb Create links for bzip2 shared libraries. 2013-04-19 12:33:20 -04:00
Gregory Burd
7b1dcb507d Need to copy shared library links for bzip2 as well (duh). 2013-04-19 11:14:03 -04:00
Gregory Burd
01a8926160 Shared libs and files linking to them must be copied into our priv 
dir so that at runtime we can find the correct files.
 2013-04-19 11:03:40 -04:00
Gregory Burd
8d8ceecc8b enif_get_string can return < 1 when it copies less than the buffer size 
you pass into it, that'd result in a non-zero (aka true) test when in fact
it's a problem if the argument isn't passed completely (however unlikely
that is).

enif_alloc_env() requires that later you enif_free_env() which I wasn't doing,
this seems to keep memory steady in test runs.
 2013-04-19 09:11:41 -04:00
Gregory Burd
95d8a28453 Remove unused num_contexts count. Cleanup the session/cursor cache 
init process.
 2013-04-18 13:36:24 -04:00
Gregory Burd
728d2281e0 Ensure that we init the shared cache when asking for a cursor before 
asking for a session.
 2013-04-18 12:24:49 -04:00
Gregory Burd
846f7f72ba Must compile before commit, must compile before commit... 2013-04-18 12:01:34 -04:00