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Date:	Mon, 27 Feb 2006 06:33:48 -0700
From:	Eric Blake <ebb9 AT byu DOT net>
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Subject:	Re: bash slow on first 'up-arrow'
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According to Frank Greco on 2/26/2006 1:39 PM:
> 
> When I hit 'up-arrow' for the first time, there's a long delay (at least 30 
> secs) and the disk spins like crazy.  Then it seems to work fine, so it seems to 
> be looking for something the very first 'up-arrow'.  

I've never seen anything like this, but wonder what your history settings
are at.  If you have a huge HISTFILESIZE and HISTSIZE, it might just be
that bash is spending a lot of time reading the history file into memory,
possibly triggering some severe page swapping.  'man bash' provides more
information about tailoring your history.  You could also use strace to
see what bash is doing in response to the first up-arrow, including any
files it is opening, although I will admit that reading an strace is not
the easiest thing to decipher.

- --
Life is short - so eat dessert first!

Eric Blake             ebb9 AT byu DOT net
volunteer cygwin bash maintainer
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