id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	lang	patch	platform
1749	readall method on open FileHandle is inefficient	pmichaud		"Using readall on an open filehandle appears to be extremely inefficient.  Some simple tests reading a 10,000 line file
can end up taking several seconds to complete.  Notably, reading the filehandle line-at-a-time via 'read' is far more efficient than 'readall'.

Looking at the filehandle.pmc code, it appears that 'readall'
turns on line buffering on the input filehandle, and then does
successive string concatenations to produce the resulting string.
That involves a lot of string allocations, iiuc, which is probably part of the slowness.

I'm not sure why it chooses to use line buffering -- it seems like
some other strategy would be far more efficient.

Pm"	bug	closed	normal		core	2.6.0	medium	fixed