Re: X performance suffers under emacs 21.1.1

[Gerd Moellmann]

Richard Stallman <address@hidden> writes:

>     _Immediately_ after stopping the emacs gnus and completely exiting
>     the emacs session (but leaving the X settion up!) ... I get the
>     following memory usage:
> 
>     X memory usage went from *185MB* down to *10MB*!!!
> 
>     last pid:  7956;  load averages:  0.18,  0.52,  0.56  up 1+02:45:59    
> 00:33:53
>     25 processes:  1 running, 24 sleeping
> 
>     Mem: 9596K Active, 5140K Inact, 11M Wired, 1148K Cache, 14M Buf, 34M Free
>     Swap: 300M Total, 5244K Used, 295M Free, 1% Inuse
> 
> 
>       PID USERNAME PRI NICE  SIZE    RES STATE    TIME   WCPU    CPU COMMAND
>      7956 ortmann   33   0  1892K   932K RUN      0:00  9.00%  0.44% top
>       258 root       2   0  9612K  5284K select  91:54  0.00%  0.00% XF86_S3
> 
> Gerd, could Emacs be creating lots of objects in the X server, and
> never deleting them?  What sort of objects might they be?

I can think only think of two server-side objects of significant size:
Pixmaps and fonts.  What was the user doing when he saw the memory
usage go up?

> Daniel, how many frames did you use?  Did you make and then delete
> many frames?
> 
> Does Emacs display any new images during the session (i.e., not at the
> very beginning but only later)?

If it were many images, what's the effect of calling clear-image-cache?