[optimization] improve massive write performance by optimizing hooks selection
profiling on some massive deletion showed up that 2/3 of the time was spent
in hooks selection. Those changes make it much more acceptable (through
selection is still not negligeable):
* use one registry for each event, so we've much less hooks to check
when emiting an event as well as no more need for the match_event
selector. This required ability to put one appobject
into several registries, using a __registries__ class attribute.
* check for deprecated .enabled at registry initialization time instead
of at selection time
A very simple HooksManager class has been reintroduce to choose the
right registry on call_hooks.
Those optimisations leads to a ~x3 factor of time necessary to delete
16000 entities.
from cubicweb import toolsutils
from cubicweb.devtools import DEFAULT_SOURCES, BaseApptestConfiguration
class RealDatabaseConfiguration(BaseApptestConfiguration):
init_repository = False
sourcesdef = DEFAULT_SOURCES.copy()
def sources(self):
"""
By default, we run tests with the sqlite DB backend.
One may use its own configuration by just creating a
'sources' file in the test directory from wich tests are
launched.
"""
self._sources = self.sourcesdef
return self._sources
def buildconfig(dbuser, dbpassword, dbname, adminuser, adminpassword, dbhost=None):
"""convenience function that builds a real-db configuration class"""
sourcesdef = {'system': {'adapter' : 'native',
'db-encoding' : 'UTF-8', #'ISO-8859-1',
'db-user' : dbuser,
'db-password' : dbpassword,
'db-name' : dbname,
'db-driver' : 'postgres',
'db-host' : dbhost,
},
'admin' : {'login': adminuser,
'password': adminpassword,
},
}
return type('MyRealDBConfig', (RealDatabaseConfiguration,),
{'sourcesdef': sourcesdef})
def loadconfig(filename):
"""convenience function that builds a real-db configuration class
from a file
"""
return type('MyRealDBConfig', (RealDatabaseConfiguration,),
{'sourcesdef': toolsutils.read_config(filename)})