- 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
- 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

halfcrazy/sqlalchemy,elelianghh/sqlalchemy,inspirehep/sqlalchemy,ThiefMaster/sqlalchemy,itkovian/sqlalchemy,davidfraser/sqlalchemy,bdupharm/sqlalchemy,dstufft/sqlalchemy,bootandy/sqlalchemy,Akrog/sqlalchemy,graingert/sqlalchemy,davidjb/sqlalchemy,WinterNis/sqlalchemy,brianv0/sqlalchemy,elelianghh/sqlalchemy,pdufour/sqlalchemy,j5int/sqlalchemy,EvaSDK/sqlalchemy,wfxiang08/sqlalchemy,zzzeek/sqlalchemy,sqlalchemy/sqlalchemy,bootandy/sqlalchemy,inspirehep/sqlalchemy,graingert/sqlalchemy,hsum/sqlalchemy,ThiefMaster/sqlalchemy,wfxiang08/sqlalchemy,wujuguang/sqlalchemy,sandan/sqlalchemy,wujuguang/sqlalchemy,epa/sqlalchemy,monetate/sqlalchemy,hsum/sqlalchemy,halfcrazy/sqlalchemy,sandan/sqlalchemy,j5int/sqlalchemy,davidfraser/sqlalchemy,olemis/sqlalchemy,bdupharm/sqlalchemy,WinterNis/sqlalchemy,monetate/sqlalchemy,brianv0/sqlalchemy,robin900/sqlalchemy,davidjb/sqlalchemy,epa/sqlalchemy,robin900/sqlalchemy,EvaSDK/sqlalchemy,pdufour/sqlalchemy,olemis/sqlalchemy,itkovian/sqlalchemy,276361270/sqlalchemy,dstufft/sqlalchemy,276361270/sqlalchemy,Akrog/sqlalchemy