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Re: Bash-4.0-rc1 available for FTP
From: |
Dan Nicolaescu |
Subject: |
Re: Bash-4.0-rc1 available for FTP |
Date: |
Mon, 2 Feb 2009 07:15:07 -0800 (PST) |
Nicolas <nikos42@gmail.com> writes:
> Hello,
>
> I ran some benchmarks of Bash 4.0-rc1. It is quite impressive! Here are the
> results.
> My computer is a Pentium M (running at 600 MHz for the test), running Linux
> 2.6.26 with libc6 version 2.7 and Debian bash-completion version 20080705.
> The figures are averages over 100 tests.
>
> Bash 3.2, without bash malloc:
> * eval `dircolors`: 0.636s
> * source /etc/bash_completion: 0.721s
>
> Bash 4.0, with bash malloc:
> * eval `dircolors`: 0.385s
> * source /etc/bash_completion: 41.651s (around 93% of the time is spent in
> function find_entry of lib/malloc/table.c)
>
> Bash 4.0, without bash malloc:
> * eval `dircolors`: 0.132s
> * source /etc/bash_completion: 0.703s
bash_completion is too slow because it does strange things: it parses
itself because it wants to emulate the behavior of "-o plusdirs".
See
https://bugzilla.redhat.com/show_bug.cgi?id=479936
for a preliminary patch.
- Re: Bash-4.0-rc1 available for FTP,
Dan Nicolaescu <=