tramp (2.0.22); when saving ssh consumes LOT of cpu under cygwin

[U-RELAX\\Sophana]

Enter your bug report in this message, including as much detail as you
possibly can about the problem, what you did to cause it and what the
local and remote machines are.

If you can give a simple set of instructions to make this bug happen
reliably, please include those.  Thank you for helping kill bugs in
TRAMP.

Another useful thing to do is to put (setq tramp-debug-buffer t) in
the ~/.emacs file and to repeat the bug.  Then, include the contents
of the *tramp/foo* buffer and the *debug tramp/foo* buffer in your bug
report.

--bug report follows this line--
I use tramp to ssh another machine in the local network.
I have a windows xp Pentium3 500mhz and ssh a linux redhat8 pentium3
500mhz

I can use tramp with no problem except one very annoying thing:
when saving about 500 lines, it takes about one minute to save. the
windows task manager shows that ssh consumes all the cpu during that
time.
do you know a workaround?

thanks

Sophana

please respond to address@hidden



Emacs  : XEmacs 21.4 (patch 11) "Native Windows TTY Support (Windows)" [Lucid] 
(i686-pc-cygwin) of Wed Jan  8 2003 on TSUNAMI
Package: tramp (2.0.22)

current state:
==============
(setq
 tramp-ls-command nil
 tramp-test-groks-nt nil
 tramp-file-exists-command nil
 tramp-current-multi-method nil
 tramp-current-method nil
 tramp-current-user nil
 tramp-current-host nil
 tramp-auto-save-directory nil
 tramp-default-method "ssh"
 tramp-rsh-end-of-line "\n"
 tramp-password-end-of-line "\n"
 tramp-remote-path '("/bin" "/usr/bin" "/usr/sbin" "/usr/local/bin"
                                         "/usr/ccs/bin" "/local/bin" 
"/local/freeware/bin"
                                         "/local/gnu/bin" "/usr/freeware/bin" 
"/usr/pkg/bin"
                                         "/usr/contrib/bin")
 tramp-login-prompt-regexp ".*ogin: *"
 tramp-password-prompt-regexp "^.*\\([pP]assword\\|passphrase.*\\):? *"
 tramp-wrong-passwd-regexp "^.*\\(?:Connection \\(?:closed\\|refused\\)\\|Host 
key verification failed\\.\\|Login \\(?:Incorrect\\|incorrect\\)\\|Name or 
service not known\\|Permission denied\\.\\|Sorry, try 
again\\.\\).*\\|^.*\\(Received signal [0-9]+\\).*"
 tramp-yesno-prompt-regexp "\\(?:Are you sure you want to continue connecting 
(yes/no)\\?\\)\\s-*"
 tramp-yn-prompt-regexp "\\(?:Store key in cache\\? (y/n)\\)\\s-*"
 tramp-temp-name-prefix "tramp."
 tramp-file-name-structure '("^/\\[\\(\\([a-zA-Z_0-9-]+\\)/\\)?\\(\\([^:@/      
]*\\)@\\)?\\([a-zA-Z0-9_.-]*\\)\\]\\(.*$\\)" 2 4 5 6)
 tramp-file-name-regexp "\\`/\\[.*\\]"
 tramp-multi-file-name-structure 
'("^/\\[\\(\\([a-zA-Z_0-9-]+\\)\\)?\\(\\(/%s\\)+\\)?\\]\\(.*$\\)" 2 3 -1)
 tramp-multi-file-name-hop-structure '("\\([a-zA-Z_0-9-]+\\):\\([^:@/   
]*\\)@\\([a-zA-Z0-9_.-]*\\)" 1 2 3)
 tramp-multi-methods '("multi" "multiu")
 tramp-multi-connection-function-alist '(("telnet" tramp-multi-connect-telnet
                                                                                
  "telnet %h%n")
                                                                                
 ("rsh" tramp-multi-connect-rlogin
                                                                                
  "rsh %h -l %u%n")
                                                                                
 ("ssh" tramp-multi-connect-rlogin
                                                                                
  "ssh %h -l %u%n")
                                                                                
 ("su" tramp-multi-connect-su
                                                                                
  "su - %u%n")
                                                                                
 ("sudo" tramp-multi-connect-su
                                                                                
  "sudo -u %u -s%n")
                                                                                
 )
 tramp-methods '(("rcp" (tramp-connection-function tramp-open-connection-rsh)
                                  (tramp-rsh-program "rsh") (tramp-rcp-program 
"rcp")
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
nil)
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
"-p")
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("scp" (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "ssh") (tramp-rcp-program 
"scp")
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
("-e" "none"))
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
"-p")
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("scp1" (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "ssh") (tramp-rcp-program 
"scp")
                                  (tramp-remote-sh "/bin/sh")
                                  (tramp-rsh-args ("-1" "-e" "none")) 
(tramp-rcp-args ("-1"))
                                  (tramp-rcp-keep-date-arg "-p") 
(tramp-su-program nil)
                                  (tramp-su-args nil) (tramp-telnet-program nil)
                                  (tramp-telnet-args nil))
                                 ("scp2" (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "ssh") (tramp-rcp-program 
"scp")
                                  (tramp-remote-sh "/bin/sh")
                                  (tramp-rsh-args ("-2" "-e" "none")) 
(tramp-rcp-args ("-2"))
                                  (tramp-rcp-keep-date-arg "-p") 
(tramp-su-program nil)
                                  (tramp-su-args nil) (tramp-telnet-program nil)
                                  (tramp-telnet-args nil))
                                 ("scp1-old"
                                  (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "ssh1") (tramp-rcp-program 
"scp1")
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
("-e" "none"))
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
"-p")
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("scp2-old"
                                  (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "ssh2") (tramp-rcp-program 
"scp2")
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
("-e" "none"))
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
"-p")
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("rsync"
                                  (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "ssh") (tramp-rcp-program 
"rsync")
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
("-e" "none"))
                                  (tramp-rcp-args ("-e" "ssh")) 
(tramp-rcp-keep-date-arg "-t")
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("rsh" (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "rsh") (tramp-rcp-program 
nil)
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
nil)
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
nil)
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("ssh" (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "ssh") (tramp-rcp-program 
nil)
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
("-e" "none"))
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
nil)
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("ssh1" (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "ssh") (tramp-rcp-program 
nil)
                                  (tramp-remote-sh "/bin/sh")
                                  (tramp-rsh-args ("-1" "-e" "none")) 
(tramp-rcp-args ("-1"))
                                  (tramp-rcp-keep-date-arg nil) 
(tramp-su-program nil)
                                  (tramp-su-args nil) (tramp-telnet-program nil)
                                  (tramp-telnet-args nil))
                                 ("ssh2" (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "ssh") (tramp-rcp-program 
nil)
                                  (tramp-remote-sh "/bin/sh")
                                  (tramp-rsh-args ("-2" "-e" "none")) 
(tramp-rcp-args ("-2"))
                                  (tramp-rcp-keep-date-arg nil) 
(tramp-su-program nil)
                                  (tramp-su-args nil) (tramp-telnet-program nil)
                                  (tramp-telnet-args nil))
                                 ("ssh1-old"
                                  (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "ssh1") (tramp-rcp-program 
nil)
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
("-e" "none"))
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
nil)
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("ssh2-old"
                                  (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "ssh2") (tramp-rcp-program 
nil)
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
("-e" "none"))
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
nil)
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("telnet"
                                  (tramp-connection-function 
tramp-open-connection-telnet)
                                  (tramp-rsh-program nil) (tramp-rcp-program 
nil)
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
nil)
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
nil)
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program "telnet") 
(tramp-telnet-args nil))
                                 ("su" (tramp-connection-function 
tramp-open-connection-su)
                                  (tramp-rsh-program nil) (tramp-rcp-program 
nil)
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
nil)
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
nil)
                                  (tramp-su-program "su") (tramp-su-args ("-" 
"%u"))
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("sudo" (tramp-connection-function 
tramp-open-connection-su)
                                  (tramp-rsh-program nil) (tramp-rcp-program 
nil)
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
nil)
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
nil)
                                  (tramp-su-program "sudo") (tramp-su-args 
("-u" "%u" "-s"))
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("multi"
                                  (tramp-connection-function 
tramp-open-connection-multi)
                                  (tramp-rsh-program nil) (tramp-rcp-program 
nil)
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
nil)
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
nil)
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("scpx" (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "ssh") (tramp-rcp-program 
"scp")
                                  (tramp-remote-sh "/bin/sh")
                                  (tramp-rsh-args ("-e" "none" "-t" "-t" 
"/bin/sh"))
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
"-p")
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("sshx" (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "ssh") (tramp-rcp-program 
nil)
                                  (tramp-remote-sh "/bin/sh")
                                  (tramp-rsh-args ("-e" "none" "-t" "-t" 
"/bin/sh"))
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
nil)
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("krlogin"
                                  (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "krlogin") 
(tramp-rcp-program nil)
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
("-x"))
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
nil)
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("plink"
                                  (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "plink") 
(tramp-rcp-program nil)
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
("-ssh"))
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
nil)
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("pscp" (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "plink") 
(tramp-rcp-program "pscp")
                                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args 
("-ssh"))
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
"-p")
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 ("fcp" (tramp-connection-function 
tramp-open-connection-rsh)
                                  (tramp-rsh-program "fsh") (tramp-rcp-program 
"fcp")
                                  (tramp-remote-sh "/bin/sh -i") 
(tramp-rsh-args ("sh" "-i"))
                                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg 
"-p")
                                  (tramp-su-program nil) (tramp-su-args nil)
                                  (tramp-telnet-program nil) (tramp-telnet-args 
nil))
                                 )
 tramp-end-of-output "/////"
 tramp-coding-commands '(("mimencode -b" "mimencode -u -b"
                                                  base64-encode-region 
base64-decode-region)
                                                 ("mmencode -b" "mmencode -u 
-b" base64-encode-region
                                                  base64-decode-region)
                                                 ("recode data..base64" "recode 
base64..data"
                                                  base64-encode-region 
base64-decode-region)
                                                 ("uuencode xxx" "uudecode -o 
-" tramp-uuencode-region
                                                  uudecode-decode-region)
                                                 ("uuencode xxx" "uudecode -p" 
tramp-uuencode-region
                                                  uudecode-decode-region)
                                                 ("uuencode xxx" 
"tramp_uudecode"
                                                  tramp-uuencode-region 
uudecode-decode-region)
                                                 ("tramp_encode_with_module"
                                                  "tramp_decode_with_module" 
base64-encode-region
                                                  base64-decode-region)
                                                 ("tramp_encode" "tramp_decode" 
base64-encode-region
                                                  base64-decode-region)
                                                 )
 tramp-actions-before-shell '((tramp-password-prompt-regexp
                                                           
tramp-action-password)
                                                          
(tramp-login-prompt-regexp tramp-action-login)
                                                          (shell-prompt-pattern 
tramp-action-succeed)
                                                          
(tramp-shell-prompt-pattern tramp-action-succeed)
                                                          
(tramp-wrong-passwd-regexp
                                                           
tramp-action-permission-denied)
                                                          
(tramp-yesno-prompt-regexp tramp-action-yesno)
                                                          
(tramp-yn-prompt-regexp tramp-action-yn))
 tramp-multi-actions '((tramp-password-prompt-regexp
                                                tramp-multi-action-password)
                                           (tramp-login-prompt-regexp 
tramp-multi-action-login)
                                           (shell-prompt-pattern 
tramp-multi-action-succeed)
                                           (tramp-shell-prompt-pattern 
tramp-multi-action-succeed)
                                           (tramp-wrong-passwd-regexp
                                                
tramp-multi-action-permission-denied)
                                           )
 tramp-terminal-type "dumb"
 tramp-shell-prompt-pattern "^[^#$%>\n]*[#$%>] *"
 shell-prompt-pattern "^[^#$%>\n]*[#$%>] *"
 backup-by-copying nil
 backup-by-copying-when-linked nil
 backup-by-copying-when-mismatch nil
 nil nil
 file-name-handler-alist '(("^/\\([[][^]]*\\)?$" .
                                                        
tramp-completion-file-name-handler)
                                                   ("\\`/\\[.*\\]" . 
tramp-file-name-handler)
                                                   ("^/[^/:]+:" . 
remote-path-file-handler-function))
 )