[Sqlalchemy-commits] commit/sqlalchemy: 5 new changesets

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5 new commits in sqlalchemy:

https://bitbucket.org/zzzeek/sqlalchemy/commits/9afe585f4599/
Changeset:   9afe585f4599
Branch:      None
User:        zzzeek
Date:        2015-03-09 18:36:23+00:00
Summary:     - pick around gaining modest dings in callcounts here and there

Affected #:  7 files

https://bitbucket.org/zzzeek/sqlalchemy/commits/611d88d23431/
Changeset:   611d88d23431
Branch:      None
User:        zzzeek
Date:        2015-03-09 19:19:49+00:00
Summary:     - add a callers option

Affected #:  1 file

https://bitbucket.org/zzzeek/sqlalchemy/commits/adaa00330035/
Changeset:   adaa00330035
Branch:      None
User:        zzzeek
Date:        2015-03-09 19:24:01+00:00
Summary:     - reduce some callcounts related to the lightweight tuple,
basically by caching them.
- improve LRUCache so that size management only proceeds
in one thread, add a real get() method

Affected #:  1 file

https://bitbucket.org/zzzeek/sqlalchemy/commits/b8a39b8636c8/
Changeset:   b8a39b8636c8
Branch:      None
User:        zzzeek
Date:        2015-03-09 19:24:37+00:00
Summary:     - fix a potential race condition where the per-mapper LRUCache used by
persistence.py could theoretically hit the limit of the cache
(100 items by default) and at some points fail to have a key that
we check for, due to the cleanup.   This has never been observed
so its likely that so far, the total number of INSERT, UPDATE and
DELETE statement structures in real apps has not exceeded 100
on a per-mapper basis; this could happen for apps that run a
very wide variety of attribute modified combinations into the unit
of work, *and* which have very high concurrency going on.
This change will be a lot more significant when we open up
use of LRUCache + compiled cache with the baked query extension.

Affected #:  1 file

https://bitbucket.org/zzzeek/sqlalchemy/commits/26d598348936/
Changeset:   26d598348936
Branch:      None
User:        zzzeek
Date:        2015-03-09 20:02:55+00:00
Summary:     - updated counts

Affected #:  1 file

Repository URL: https://bitbucket.org/zzzeek/sqlalchemy/

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