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bug#13677: 24.2.50; workng on remote hosts with eshell is not very enjoy


From: Andreas Politz
Subject: bug#13677: 24.2.50; workng on remote hosts with eshell is not very enjoyable
Date: Sun, 10 Feb 2013 18:25:43 +0100

emacs -Q
M-x eshell
cd /ssh:somehost.com:
stat .
stat .
...

Every stat command starts a new tramp process, which, in my case, takes
about 3-4 seconds to get going and renders eshell fairly useless for
this kind of work. 

Can this be changed such that eshell uses start-file-process only if the
command results in a background process and use process-file otherwise ?

This seems to be a follow up to bug #3957.

Andreas




In GNU Emacs 24.2.50.1 (x86_64-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2012-10-13 on cw-bkp0, modified by Debian
 (emacs-snapshot package, version 2:20121009-1+squeeze)
Windowing system distributor `The X.Org Foundation', version 11.0.10707000
System Description:     Debian GNU/Linux 6.0.6 (squeeze)

Configured using:
 `configure '--build' 'x86_64-linux-gnu' '--host' 'x86_64-linux-gnu'
 '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib'
 '--localstatedir=/var' '--infodir=/usr/share/info'
 '--mandir=/usr/share/man' '--with-pop=yes'
 
'--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/24.2.50/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.2.50/site-lisp:/usr/share/emacs/site-lisp'
 '--without-compress-info' '--with-crt-dir=/usr/lib//' '--with-x=yes'
 '--with-x-toolkit=gtk' '--with-imagemagick=yes'
 'build_alias=x86_64-linux-gnu' 'host_alias=x86_64-linux-gnu'
 'CFLAGS=-DDEBIAN -DSITELOAD_PURESIZE_EXTRA=5000 -g -O2' 'LDFLAGS=-g
 -Wl,--as-needed -znocombreloc' 'CPPFLAGS=''

Important settings:
  value of $LC_COLLATE: C
  value of $LC_MESSAGES: C
  value of $LANG: de_DE.UTF-8
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: EShell

Minor modes in effect:
  ispell-track-input-method: t
  idle-help-selwin-mode: t
  idle-help-mode: t
  tblc-mode: t
  emacs-interactive-mode: t
  show-paren-mode: t
  recentf-mode: t
  yas/global-mode: t
  window-numbering-mode: t
  shell-dirtrack-mode: t
  scroll-other-window-mode: t
  savehist-mode: t
  iswitchb-mode: t
  TeX-PDF-mode: t
  ekey-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-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:
C-/ C-/ C-/ C-/ C-/ C-/ C-/ C-/ C-/ C-/ C-/ C-/ C-/ 
C-/ C-/ C-/ C-/ C-/ C-/ C-/ C-/ C-/ C-/ C-/ C-/ C-/ 
C-/ C-/ C-M-x C-x o M-p <return> C-M-x g g <return> 
M-p <return> <return> M-p DEL <return> M-p <return> 
M-p M-h s l e e p SPC 1 m & <return> C-x m C-y C-/ 
C-n C-e C-y C-p C-y M-b M-b M-b DEL DEL DEL DEL @ C-e 
C-n C-n C-n C-n C-n <return> T h i s SPC s e e m s 
SPC t o SPC b e SPC M-! b z M-p <return> C-x o M-! 
M-p <return> C-x o M-h h a v e SPC b e e n SPC a d 
d r e s s e d SPC i n SPC M-b C-k f o r SPC s o m e 
M-b M-b M-b C-e SPC t i m e SPC n o w . M-q C-p C-p 
C-p C-p C-p C-p C-M-b C-M-b C-M-b C-M-b C-k C-n C-n 
C-n C-n C-n C-n C-a C-k C-x k <return> y M-x r e p 
o r t <return> b u g <return> e s h e l l SPC o <backspace> 
c o m m a n d s SPC o n SPC r e m o t e SPC h o s t 
s C-M-b C-M-b C-M-b C-M-b C-e SPC M-b M-b M-b M-b M-d 
M-b M-d w o r k n g M-SPC C-e w i t h SPC e s h e l 
l SPC i s SPC n o t SPC v e r y SPC e n j o y a b l 
e <return> C-x k <return> y M-x c d <return> C-g c 
d SPC / <return> M-x M-x M-x <return>

Recent messages:
Tramp: Opening connection for ssh.fh-trier.de using ssh...
Tramp: Sending command `exec ssh   -e none ssh.fh-trier.de'

Tramp: Waiting for prompts from remote shell
Tramp: Sending command `exec ssh   -e none ssh.fh-trier.de'
Tramp: Found remote shell prompt on `ssh.fh-trier.de'
Tramp: Opening connection for ssh.fh-trier.de using ssh...done
Quit
Buffer *unsent mail to address@hidden modified; kill anyway? (y or n)  y
Quit

Load-path shadows:
/home/politza/.emacs.d/scratch hides /home/politza/.emacs.d/plugins/jedi/scratch
/home/politza/.emacs.d/plugins/haskell-mode/haskell-cabal hides 
/home/politza/.emacs.d/plugins/haskell/haskell-cabal
/home/politza/.emacs.d/plugins/haskell-mode/haskell-decl-scan hides 
/home/politza/.emacs.d/plugins/haskell/haskell-decl-scan
/home/politza/.emacs.d/plugins/haskell-mode/haskell-doc hides 
/home/politza/.emacs.d/plugins/haskell/haskell-doc
/home/politza/.emacs.d/plugins/haskell-mode/ghc-core hides 
/home/politza/.emacs.d/plugins/haskell/ghc-core
/home/politza/.emacs.d/plugins/haskell-mode/haskell-mode hides 
/home/politza/.emacs.d/plugins/haskell/haskell-mode
/home/politza/.emacs.d/plugins/haskell-mode/haskell-c hides 
/home/politza/.emacs.d/plugins/haskell/haskell-c
/home/politza/.emacs.d/plugins/haskell-mode/haskell-indentation hides 
/home/politza/.emacs.d/plugins/haskell/haskell-indentation
/home/politza/.emacs.d/plugins/haskell-mode/haskell-site-file hides 
/home/politza/.emacs.d/plugins/haskell/haskell-site-file
/home/politza/.emacs.d/plugins/haskell-mode/haskell-ghci hides 
/home/politza/.emacs.d/plugins/haskell/haskell-ghci
/home/politza/.emacs.d/plugins/haskell-mode/inf-haskell hides 
/home/politza/.emacs.d/plugins/haskell/inf-haskell
/home/politza/.emacs.d/plugins/haskell-mode/haskell-indent hides 
/home/politza/.emacs.d/plugins/haskell/haskell-indent
/home/politza/.emacs.d/plugins/haskell-mode/haskell-hugs hides 
/home/politza/.emacs.d/plugins/haskell/haskell-hugs
/home/politza/.emacs.d/plugins/haskell-mode/haskell-font-lock hides 
/home/politza/.emacs.d/plugins/haskell/haskell-font-lock
/home/politza/.emacs.d/plugins/haskell-mode/haskell-simple-indent hides 
/home/politza/.emacs.d/plugins/haskell/haskell-simple-indent
/home/politza/.emacs.d/plugins/tblc/tblc hides 
/home/politza/.emacs.d/plugins/tblc
/home/politza/.emacs.d/plugins/haskell-mode/haskell-cabal hides 
/usr/share/emacs/site-lisp/haskell-mode/haskell-cabal
/home/politza/.emacs.d/plugins/haskell-mode/haskell-doc hides 
/usr/share/emacs/site-lisp/haskell-mode/haskell-doc
/home/politza/.emacs.d/plugins/haskell-mode/haskell-mode hides 
/usr/share/emacs/site-lisp/haskell-mode/haskell-mode
/home/politza/.emacs.d/plugins/haskell-mode/haskell-c hides 
/usr/share/emacs/site-lisp/haskell-mode/haskell-c
/home/politza/.emacs.d/plugins/haskell-mode/haskell-indentation hides 
/usr/share/emacs/site-lisp/haskell-mode/haskell-indentation
/home/politza/.emacs.d/plugins/haskell-mode/haskell-site-file hides 
/usr/share/emacs/site-lisp/haskell-mode/haskell-site-file
/home/politza/.emacs.d/plugins/haskell-mode/haskell-ghci hides 
/usr/share/emacs/site-lisp/haskell-mode/haskell-ghci
/home/politza/.emacs.d/plugins/haskell-mode/inf-haskell hides 
/usr/share/emacs/site-lisp/haskell-mode/inf-haskell
/home/politza/.emacs.d/plugins/haskell-mode/haskell-hugs hides 
/usr/share/emacs/site-lisp/haskell-mode/haskell-hugs
/home/politza/.emacs.d/plugins/haskell-mode/haskell-font-lock hides 
/usr/share/emacs/site-lisp/haskell-mode/haskell-font-lock
/home/politza/.emacs.d/plugins/haskell-mode/haskell-simple-indent hides 
/usr/share/emacs/site-lisp/haskell-mode/haskell-simple-indent
/home/politza/.emacs.d/plugins/haskell-mode/haskell-decl-scan hides 
/usr/share/emacs/site-lisp/haskell-mode/haskell-decl-scan
/home/politza/.emacs.d/plugins/haskell-mode/haskell-indent hides 
/usr/share/emacs/site-lisp/haskell-mode/haskell-indent
/home/politza/.emacs.d/plugins/haskell-mode/haskell-decl-scan hides 
/usr/share/emacs/24.2.50/site-lisp/haskell-mode/haskell-decl-scan
/home/politza/.emacs.d/plugins/haskell-mode/haskell-c hides 
/usr/share/emacs/24.2.50/site-lisp/haskell-mode/haskell-c
/home/politza/.emacs.d/plugins/haskell-mode/haskell-ghci hides 
/usr/share/emacs/24.2.50/site-lisp/haskell-mode/haskell-ghci
/home/politza/.emacs.d/plugins/haskell-mode/haskell-doc hides 
/usr/share/emacs/24.2.50/site-lisp/haskell-mode/haskell-doc
/home/politza/.emacs.d/plugins/haskell-mode/haskell-indent hides 
/usr/share/emacs/24.2.50/site-lisp/haskell-mode/haskell-indent
/home/politza/.emacs.d/plugins/haskell-mode/haskell-mode hides 
/usr/share/emacs/24.2.50/site-lisp/haskell-mode/haskell-mode
/home/politza/.emacs.d/plugins/haskell-mode/haskell-hugs hides 
/usr/share/emacs/24.2.50/site-lisp/haskell-mode/haskell-hugs
/home/politza/.emacs.d/plugins/haskell-mode/haskell-site-file hides 
/usr/share/emacs/24.2.50/site-lisp/haskell-mode/haskell-site-file
/home/politza/.emacs.d/plugins/haskell-mode/haskell-cabal hides 
/usr/share/emacs/24.2.50/site-lisp/haskell-mode/haskell-cabal
/home/politza/.emacs.d/plugins/haskell-mode/inf-haskell hides 
/usr/share/emacs/24.2.50/site-lisp/haskell-mode/inf-haskell
/home/politza/.emacs.d/plugins/haskell-mode/haskell-font-lock hides 
/usr/share/emacs/24.2.50/site-lisp/haskell-mode/haskell-font-lock
/home/politza/.emacs.d/plugins/haskell-mode/haskell-simple-indent hides 
/usr/share/emacs/24.2.50/site-lisp/haskell-mode/haskell-simple-indent
/home/politza/.emacs.d/plugins/haskell-mode/haskell-indentation hides 
/usr/share/emacs/24.2.50/site-lisp/haskell-mode/haskell-indentation
/usr/share/emacs/24.2.50/site-lisp/cscope/xcscope hides 
/usr/share/emacs/site-lisp/xcscope
/usr/share/emacs/24.2.50/site-lisp/debian-startup hides 
/usr/share/emacs/site-lisp/debian-startup
/home/politza/.emacs.d/plugins/term hides /usr/share/emacs/24.2.50/lisp/term
/home/politza/.emacs.d/plugins/pdf-isearch/startup hides 
/usr/share/emacs/24.2.50/lisp/startup
/usr/share/emacs/site-lisp/rst hides /usr/share/emacs/24.2.50/lisp/textmodes/rst
/usr/share/emacs/site-lisp/remember-el/remember hides 
/usr/share/emacs/24.2.50/lisp/textmodes/remember
/home/politza/.emacs.d/plugins/python/python/python hides 
/usr/share/emacs/24.2.50/lisp/progmodes/python
/home/politza/.emacs.d/plugins/el-get/.dir-locals hides 
/usr/share/emacs/24.2.50/lisp/gnus/.dir-locals
/home/politza/.emacs.d/calc hides /usr/share/emacs/24.2.50/lisp/calc/calc
/home/politza/.emacs.d/plugins/python/python/sym-comp hides 
/usr/share/emacs/24.2.50/lisp/obsolete/sym-comp

Features:
(shadow emacsbug vc-bzr cc-langs cc-mode cc-fonts cc-guess cc-menus
cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs mule-util
reposition tramp-cmds tramp-cache tramp-sh misearch multi-isearch
dired-aux scroll-hide-empty-lines jka-compr pp em-unix em-term term
ehelp electric ange-ftp em-script em-prompt em-ls em-hist em-pred
em-glob em-dirs em-cmpl em-basic em-banner em-alias esh-var esh-io
esh-cmd esh-opt esh-ext esh-proc esh-arg esh-groups eshell esh-module
esh-mode esh-util mailalias smtpmail sendmail qp ispell quail sort
smiley gnus-cite mail-extr gnus-async gnus-bcklg gnus-ml vc-dispatcher
vc-svn disp-table two-column iso-transl nndraft nnmh utf-7 gnutls
network-stream starttls nnimap parse-time tls utf7 netrc nnfolder nnnil
gnus-agent gnus-srvr gnus-score score-mode nnvirtual gnus-msg gnus-art
mm-uu mml2015 epg-config mm-view mml-smime smime dig mailcap nntp
gnus-cache gnus-sum nnoo gnus-group gnus-undo nnmail mail-source
gnus-start gnus-spec gnus-int gnus-range message rfc822 mml mml-sec
mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045
ietf-drums mailabbrev gmm-utils mailheader gnus-win gnus gnus-ems
nnheader mail-utils imenu plugin-autoloads emacs-customizations
nogroup-customizations wp-customizations view-customizations
tex-customizations reftex-customizations
reftex-miscellaneous-configurations-customizations
reftex-label-support-customizations
reftex-referencing-labels-customizations
reftex-defining-label-environments-customizations AUCTeX-customizations
preview-customizations preview-latex-customizations
preview-appearance-customizations TeX-parse-customizations
TeX-file-customizations TeX-command-customizations
TeX-view-customizations LaTeX-customizations LaTeX-macro-customizations
LaTeX-math-customizations LaTeX-indentation-customizations
table-customizations table-hooks-customizations outlines-customizations
programming-customizations tools-customizations vc-customizations
semantic-customizations makefile-customizations etags-customizations
ediff-customizations diff-mode-customizations languages-customizations
matlab-customizations sh-customizations python-customizations rx
haskell-customizations c-customizations multimedia-customizations
image-customizations help-customizations ekey-customizations
info-lookup-customizations info-customizations customize-customizations
custom-buffer-customizations apropos-customizations help-mode
files-customizations uniquify-customizations uniquify
sunrise-customizations recentf-customizations find-file-customizations
backup-customizations faces-customizations
highlight-symbol-customizations font-lock-customizations
external-customizations server-customizations processes-customizations
shell-customizations gud-customizations tooltip-customizations
grep-customizations compilation-customizations next-error-customizations
comint-customizations SQL-customizations man-customizations
environment-customizations windows-customizations
minibuffer-customizations savehist-customizations completion-spelling
menu-customizations keyboard-customizations chistory-customizations
initialization-customizations frames-customizations
ediff-window-customizations dired-customizations dired-x-customizations
dired-x dired-details-customizations editing-customizations
yasnippet-customizations matching-customizations
paren-matching-customizations paren-showing-customizations
isearch-customizations bookmark-customizations killing-customizations
indent-customizations fill-customizations emulations-customizations
editing-basics-customizations development-customizations
lisp-customizations re-builder-customizations
inferior-lisp-customizations ielm-customizations ert-customizations
edebug-customizations bytecomp-customizations advice-customizations
internal-customizations alloc-customizations extensions-customizations
eldoc-customizations cust-print-customizations data-customizations
save-place-customizations convenience-customizations
imenu-tree-customizations tags-tree-customizations
company-customizations window-numbering-customizations
pabbrev-customizations kmacro-customizations imenu-customizations
ibuffer-customizations ibuf-macs hl-line-customizations
hippie-expand-customizations file-cache-customizations
ffap-customizations completion-customizations iswitchb-customizations
auto-complete-customizations browse-kill-ring-customizations
auto-revert-customizations auto-insert-customizations
comm-customizations tramp-customizations browse-url-customizations
applications-customizations mediawiki-customizations w3m-customizations
package-customizations mail-customizations smtpmail-customizations
sendmail-customizations gnus-customizations gnus-summary-customizations
gnus-summary-various-customizations gnus-summary-exit-customizations
gnus-start-customizations gnus-server-customizations
gnus-message-customizations message-customizations
gnus-exit-customizations ispell-customizations eshell-customizations
edebug doc-view-customizations calendar-customizations
org-customizations org-structure-customizations
org-plain-lists-customizations org-edit-structure-customizations
org-startup-customizations org-link-customizations
org-latex-customizations org-appearance-customizations
calculator-customizations calc-customizations server idle-help tblc
pcase hl-line read-interactively paren recentf tree-widget
.plugin-autoloads yasnippet dropdown-list window-numbering w3m
browse-url timezone w3m-hist w3m-e23 w3m-ccl ccl w3m-fsf w3m-favicon
w3m-image w3m-proc w3m-util view tramp tramp-compat tramp-loaddefs shell
track-last-window scroll-other-window saveplace savehist reftex
reftex-vars pabbrev thingatpt org ob-tangle ob-ref ob-lob ob-table
org-footnote org-src ob-comint ob-keys org-pcomplete pcomplete org-list
org-faces org-entities noutline outline org-version ob-emacs-lisp ob
org-compat org-macs ob-eval format-spec find-func cal-menu calendar
cal-loaddefs lib-edit lib-window lib-isearch lib-buffer reveal iswitchb
lib-basic lib-lispext latex easy-mmode tex-style tex info-look ibuffer
hippie-exp grep compile filecache edit-minibuffer eldoc-eval ekey assoc
dired-details+ warnings advice advice-preload dired dired-details
cool-prefix-bindings do-text lib-kbd comint-history comint ansi-color
ring anticus edmacro kmacro derived cl-macs gv ffap url-parse
auth-source eieio byte-opt bytecomp byte-compile cconv gnus-util mm-util
mail-prsvr password-cache url-vars eldoc help-fns cus-edit cus-start
cus-load wid-edit cl cl-lib auctex-autoloads tex-site info easymenu
browse-kill-ring-autoloads c-eldoc-autoloads cl-format-autoloads
company-autoloads eldoc-eval-autoloads highlight-symbol-autoloads
trie-autoloads heap-autoloads tNFA-autoloads queue-autoloads
undo-tree-autoloads package remember-autoloads planner-autoloads
w3m-load muse-autoloads time-date tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt
fringe tabulated-list newcomment lisp-mode register page menu-bar
rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax
facemenu font-core frame cham georgian utf-8-lang misc-lang vietnamese
tibetan thai tai-viet lao korean japanese hebrew greek romanian slovak
czech european ethiopic indian cyrillic chinese case-table epa-hook
jka-cmpr-hook help simple abbrev minibuffer loaddefs button faces
cus-face macroexp files text-properties overlay sha1 md5 base64 format
env code-pages mule custom widget hashtable-print-readable backquote
make-network-process dbusbind dynamic-setting font-render-setting
move-toolbar gtk x-toolkit x multi-tty emacs)





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