Re: Fixxed buffer size for eshell

[Eli Zaretskii <eliz@gnu.org>]

> Date: Mon, 1 May 2017 15:15:45 +0300
> From: Anast Gramm <anastasis.gramm2@gmail.com>
> Cc: help-gnu-emacs@gnu.org
> 
> On Sun, Apr 30, 2017 at 10:21:03PM +0300, Eli Zaretskii wrote:
> > All I can say is that I cannot reproduce this here.  I've ran this
> > command
> > 
> >   $ od prog
> > 
> > where prog is a 13MB executable program.  That filled the Eshell
> > buffer with 190,000 lines, and I still didn't see any slowdown.  Not
> > sure why you do see Emacs getting slower (I tried C-b and C-p).  Is
> > this similar to what you do in your case?
> 
> Ok, I just run
> 
> od /bin/mixxx in eshell.
> 
> ( mixxx is 11.6 MB binary and od /bin/mixxx | wc -l gave me ~750000 lines )
> 
> Emacs freezes when the buffer is at ~6500 lines,
> the whole daemon stoped so I had to restart it to write this email.

That's nowhere near what I see here.  Some factor must be at work
here, but I have no idea what that could be.

> MPD started glitching the music that was on, and firefox crashed.
> Also my network manager restarted at that point.
> 
> I managed to open a terminal and type pkill emacs, and everything went back
> to normal.
> 
> Is it possible that memory depletion is causing this? I got 8gb...

Unlikely: my testing was on a 4GB machine.

But it's possible that your settings of virtual memory are
sub-optimal.  Did Emacs start paging just before it froze?  What does
the 'free' command displays on your system?