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bug#24720: Performance impact of -no-pie

From: Paul Eggert
Subject: bug#24720: Performance impact of -no-pie
Date: Mon, 17 Oct 2016 13:18:51 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0

(The rest of this message is copied from Alex's email archived at <http://lists.gnu.org/archive/html/emacs-devel/2016-10/msg00451.html>.)

After being forced to add -no-pie to my CFLAGS in order to build Emacs with a 
recent GCC, my startup time for my whole config (with -nw) has increased from 
~1 second to ~2 seconds.

The startup time for `emacs -Q -nw` went up from about 0.07s to 0.14s; again 
it's about twice as slow.

The -Q time doesn't worry me, but the extra second for my main configuration 
isn't pleasant.

Is such a performance impact expected? If so, is there a plan to regain the old 

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