--- Begin Message ---
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Subject: |
23.0.60; 600 MB memory not freed after keyboard-quit |
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Date: |
Mon, 29 Sep 2008 21:20:00 +0200 |
Hi,
I am not sure if this is a real bug...
I run this function for ~1.5 hours without stopping:
(defun yyy (n k &optional tup)
(if (< 0 k)
(mapcar (lambda (x)
(when (or (null tup)
(> x (car (last tup))))
(yyy n (1- k) (append tup (list x)))))
(number-sequence 1 n))
;(message "%S" tup) <- yes, this was commented out
))
;; I started yyy this way:
(progn
(message "start: %s" (current-time-string))
(yyy 90 5)
(message "end: %s" (current-time-string)))
((I know mapc should be used above instead of mapcar; but think this
is a test program. It caused Emacs22 to give a "Warning! Memory limit
exceeded" on Windows2000 with 4GB memory, after running for ~20
minutes... -- now I tried to reproduce this on Linux with Emacs23 with
1 GB memory. The warning didn't come, but the following happened: ))
Emacs eat up all of the memory + a big chunk of the swap: Emacs itself
used ~620MB memory after 1.5 hours (not really increasing after some
time). Then I decided to stop it. Went to Emacs and typed C-g. Nothing
happened for a while, but after that buffer content was redrawn and I
could move the point (with the arroy keys): I thought yyy-process is
stopped and I can use Emacs again. But after a while Emacs again
stopped responding. Even the buffer content was not redrawn. I tried
C-g again and again, but nothing happened. I hoped just memory freeing
takes a long time, so left my PC for some minutes. This didn't helped
either. But after a while I could again use Emacs: killed the buffer
(containing yyy) and moved around the point just to see it works. But
memory still was occupied: Emacs used ~600MB. Later I killed Emacs
(with C-x C-c) and got back the memory.
I think Emacs should free the memory if I stop the process (with C-g)
what filled up the memory...at least after some minutes garbage
collection should work? Or is this behaviour described above a feature
of (keyboard-)quit?
Thanks,
P
----------
In GNU Emacs 23.0.60.1 (i686-pc-linux-gnu, GTK+ Version 2.12.9)
of 2008-09-03 on ubuntu-tury
Windowing system distributor `The X.Org Foundation', version 11.0.10400090
configured using `configure '--with-xft=no''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: nil
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: hu_HU.UTF-8
value of $XMODIFIERS: nil
locale-coding-system: utf-8-unix
default-enable-multibyte-characters: t
Major mode: Emacs-Lisp
Minor modes in effect:
savehist-mode: t
which-function-mode: t
show-paren-mode: t
recentf-mode: t
iswitchb-mode: t
icomplete-mode: t
display-time-mode: t
desktop-save-mode: t
tooltip-mode: t
mouse-wheel-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
global-auto-composition-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
column-number-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <menu-bar>
<file> <Open Recent> <emacs-lisp (5)> </home/xxx/emacs/trials/lotto2.el>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <menu-bar> <help-menu>
<send-emacs-bug-report>
Recent messages:
Loading info...done
uncompressing parted.info.gz...done
uncompressing parted.info.gz...done
uncompressing parted.info.gz...done
Loading vc-cvs...done
Loading cc-mode...done
hellow.java has auto save data; consider M-x recover-this-file
Wrote /home/xxx/.emacs.desktop.lock
Desktop: 6 buffers restored.
For information about GNU Emacs and the GNU system, type C-h C-a.
--- End Message ---
--- Begin Message ---
|
Subject: |
Re: bug#1053: 23.0.60; 600 MB memory not freed after keyboard-quit |
|
Date: |
Sat, 09 Jul 2011 13:56:26 -0400 |
|
User-agent: |
Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) |
I don't see a need to keep open this particular report, which was marked
"wontfix" some time ago.
Stefan Monnier wrote:
> Releasing such memory is surprisingly difficult, so you may indeed end
> up with a large Emacs process with a large heap that takes a long time
> to GC, so every time Emacs calls the GC your Emacs appears frozen.
--- End Message ---