id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
634	Implement a more efficient TArray	anonymous		"{{{Control.Concurrent.STM.TArray}}} is implemented as an immutable array of TVars.  This gives good parallelism, but isn't very efficient if you don't need that parallelism.

See: [http://www.haskell.org//pipermail/haskell-cafe/2005-December/012909.html]"	task	new	normal	_|_	Runtime System	6.4.1				Unknown/Multiple	Unknown/Multiple		Difficult (2-5 days)	N/A