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Re: Announcing Dolt, a drop-in Libtool replacement which cuts build time


From: Eric Blake
Subject: Re: Announcing Dolt, a drop-in Libtool replacement which cuts build times in half
Date: Wed, 09 Apr 2008 18:08:48 -0600
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According to Bob Friesenhahn on 4/9/2008 11:15 AM:
| On Wed, 9 Apr 2008, Josh Triplett wrote:
|>
|> I tested against 1.5.26.  I'll give 2.2.2 a shot and see what I find.
|> However, when I looked at 2.2.2, it still seems to have a
|> multi-thousand-line shell script; do you just expect the benefit to
|> come from the new shell-specific optimizations?
|
| Since shell scripts are not compiled, the size of a shell script has
| very little to do with its execution time.

On the other hand, recent improvements in autoconf 2.62 proved that we
were able to speed up testsuite performance by more than 10% by merely
refactoring Autotest output to avoid shell parsing of code that would not
be executed.  In other words, the time the shell spends on parsing its
input, whether or not that input is executed, is not trivial.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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