Issue #6047 has been updated by mame (Yusuke Endoh).

Target version changed from 2.0.0 to next minor

My experience also shows that it is useless to open a ticket for a reminder to myself :-)

I'm setting to next minor tentatively, but if it is really just a performance improvement (i.e., it affects no external modules), you can commit it to 2.0.0 before code freeze.

-- 
Yusuke Endoh <mame / tsg.ne.jp>
----------------------------------------
Feature #6047: read_all: Grow buffer exponentially in generic case
https://bugs.ruby-lang.org/issues/6047#change-33749

Author: MartinBosslet (Martin Bosslet)
Status: Assigned
Priority: Normal
Assignee: MartinBosslet (Martin Bosslet)
Category: core
Target version: next minor


In the general case, read_all grows its buffer linearly by just the amount that is currently read from the underlying source. This results in a linear number of reallocs, It might turn out beneficial if the buffer were grown exponentially by multiplying with a constant factor (e.g. 1.5 or 2), thus resulting in only a logarithmic numver of reallocs.

I will provide a patch and benchmarks, but I'm already opening this issue so I won't forget.

See also https://bugs.ruby-lang.org/issues/5353 for more details.


-- 
http://bugs.ruby-lang.org/