Slowness on remote server

[murphytalk]

When I run emacs (25) on a remote server (tried both Linux and Solaris) in a X11 terminal (via X11 forwarded ssh), smex becomes very slow, it could stall for as long as 10 seconds to respond to a keystroke.

No such problem at all on local PC, only happens on remote server (through fast corp network to a DC only a few kilometers away, does not look like a network issue). My home directory on remote server is mounted on NFS, could that be the reason?

Here's the profiling.

    - command-execute                                           20233  61%
     - call-interactively                                       20233  61%
      - funcall-interactively                                   20233  61%
       - smex                                                   19767  60%
        - if                                                    19767  60%
         - smex-read-and-run                                    19342  59%
          - let*                                                19342  59%
           - smex-completing-read                               19311  59%
            - let                                               19311  59%
             - ido-completing-read                              19311  59%
              - ido-read-internal                               19311  59%
               - apply                                          19311  59%
                + ad-Advice-ido-read-internal                   19311  59%

[paulbrodersen]

I have the same problem (NFS server and a very, very similar cpu profile). Did you resolve your issue by any chance, @murphytalk ?

[murphytalk]

@paulbrodersen Well, I gave up and have been using local emacs + Tramp ever since ...

[paulbrodersen]

@murphytalk Thanks for the heads up!