Mercurial > hg > xemacs-beta
view lisp/README @ 5160:ab9ee10a53e4
fix various problems with allocation statistics, track overhead properly
-------------------- ChangeLog entries follow: --------------------
lisp/ChangeLog addition:
2010-03-20 Ben Wing <ben@xemacs.org>
* diagnose.el (show-memory-usage):
* diagnose.el (show-object-memory-usage-stats):
Further changes to correspond with changes in the C code;
add an additional column showing the overhead used with each type,
and add it into the grand total memory usage.
src/ChangeLog addition:
2010-03-20 Ben Wing <ben@xemacs.org>
* alloc.c:
* alloc.c (init_lrecord_stats):
* alloc.c (free_normal_lisp_object):
* alloc.c (struct):
* alloc.c (clear_lrecord_stats):
* alloc.c (tick_lrecord_stats):
* alloc.c (COUNT_FROB_BLOCK_USAGE):
* alloc.c (COPY_INTO_LRECORD_STATS):
* alloc.c (sweep_strings):
* alloc.c (UNMARK_string):
* alloc.c (gc_sweep_1):
* alloc.c (finish_object_memory_usage_stats):
* alloc.c (object_memory_usage_stats):
* alloc.c (object_dead_p):
* alloc.c (fixed_type_block_overhead):
* alloc.c (lisp_object_storage_size):
* emacs.c (main_1):
* lisp.h:
* lrecord.h:
Export lisp_object_storage_size() and malloced_storage_size() even
when not MEMORY_USAGE_STATS, to get the non-MEMORY_USAGE_STATS
build to compile.
Don't export fixed_type_block_overhead() any more.
Some code cleanup, rearrangement, add some section headers.
Clean up various bugs especially involving computation of overhead
and double-counting certain usage in total_gc_usage. Add
statistics computing the overhead used by all types. Don't add a
special entry for string headers in the object-memory-usage-stats
because it's already present as just "string". But do count the
overhead used by long strings. Don't try to call the
memory_usage() methods when NEW_GC because there's nowhere obvious
in the sweep stage to make the calls.
* marker.c (compute_buffer_marker_usage):
Just use lisp_object_storage_size() rather than trying to
reimplement it.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Sat, 20 Mar 2010 20:20:30 -0500 |
| parents | 2cf5d151eeb9 |
| children |
line wrap: on
line source
The files in this directory contain source code for the core XEmacs facilities written in Emacs Lisp. *.el files are Elisp source, and *.elc files are byte-compiled versions of the corresponding *.el files. Byte-compiled files are architecture-independent. Functions used only by files in this directory are considered "internal" and are subject to change at any time. All commands, and most functions with docstrings, are part of the exported API. In particular, it is considered good style to use the Common Lisp facilities provided in cl*.el. (Yes, that's ambiguous. Sorry, we don't have a full specification of the API, as the Lispref is chronically incomplete. Anything described in the Lispref is part of the API, of course.) Libraries which implement applications and enhancements are placed in the "packages", which are distributed separately from the core sources. #### Someone please update this. #### Partially updated 2001-08-25 by sjt. Needs more work. Mike? When XEmacs starts up, it adds certain directories in various hierarchies containing Lisp libraries to `load-path' (the list of directories to be searched when loading files). These are: this directory, its subdirectory ./mule (in Mule-enabled XEmacs only), the site-lisp directory (deprecated), and all the lisp/PACKAGE subdirectories of the xemacs-packages, mule-packages, and site-packages hierarchies. See setup-paths.el. #### Is the following true or relevant any more? bogus> Directories whose names begin with "-" or "." are not added to bogus> the default load-path. Some files which you might reasonably want to alter when installing or customizing XEmacs at your site are: paths.el You may need to change the default pathnames here, but probably not. This is loaded before XEmacs is dumped. site-init.el #### obsolete and removed? To pre-load additional libraries into XEmacs and dump them in the executable, load them from this file. Read the instructions in this file for a description of how to do this. site-load.el #### description is obsolete This is like site-init.el, but if you want the docstrings of your preloaded libraries to be kept in the DOC file instead of in the executable, you should load them from this file instead. To do this, you must also cause them to be scanned when the DOC file is generated by editing ../src/Makefile.in.in and rerunning configure. #### new semantics This file will preload additional libraries listed in ../site-packages and dump them into XEmacs. ../site-packages List of additional libraries read by site-load.el. site-start.el This is loaded each time XEmacs starts up, before the user's .emacs file. (Sysadmin must create.) Can be inhibited for a given invocation with `--no-site-file'. default.el This is loaded each time XEmacs starts up, after the user's .emacs file, unless .emacs sets the variable inhibit-default-init to t. (Sysadmin must create.) Can be inhibited for a given invocation with `-q'. version.el This contains the version information for XEmacs. ======================================================================== Original text follows: The files in this directory contain source code for the XEmacs facilities written in Emacs Lisp. *.el files are Elisp source, and *.elc files are byte-compiled versions of the corresponding *.el files. Byte-compiled files are architecture-independent. #### Someone please update this. bogus> When XEmacs starts up, it adds all subdirectories of the bogus> site-lisp directory. The site-lisp directory normally exists bogus> only in installation trees. For more information about the bogus> site-lisp directory see the NEWS file. bogus> After XEmacs adds all subdirectories of the site-lisp bogus> directory, it adds all subdirectories of this directory to the bogus> load-path (the list of directories to be searched when loading bogus> files.) To speed up this process, this directory has been bogus> rearranged to have very few files at the top-level, so that bogus> emacs doesn't have to stat() several hundred files to find the bogus> dozen or so which are actually subdirectories. bogus> Directories whose names begin with "-" or "." are not added to bogus> the default load-path. The only files which remain at top-level are those which you might reasonably want to alter when installing or customizing XEmacs at your site. The files which may appear at top level are: paths.el You may need to change the default pathnames here, but probably not. This is loaded before XEmacs is dumped. site-init.el To pre-load additional libraries into XEmacs and dump them in the executable, load them from this file. Read the instructions in this file for a description of how to do this. site-load.el This is like site-init.el, but if you want the docstrings of your preloaded libraries to be kept in the DOC file instead of in the executable, you should load them from this file instead. To do this, you must also cause them to be scanned when the DOC file is generated by editing ../src/Makefile.in.in and rerunning configure. site-start.el This is loaded each time XEmacs starts up, before the user's .emacs file. default.el This is loaded each time XEmacs starts up, after the user's .emacs file, unless .emacs sets the variable inhibit-default-init to t. version.el This contains the version information for XEmacs.