I took the time to refine the previous code I had to make it use less disk
space and save more memory. This is provided with no guarantee and is
known to be incompatible with all existing OLC systems.
If you're serious about using this, it might be a good idea to not
fopen/fclose the file constantly as I do here. fopen() it once in the
world_init() function and fclose() it in the world_end() function. This
will reduce the overhead, but possibly increase the memory usage by a
little bit. If you do this, remember to fseek() to 0 where the current
fclose() calls are.
It is, of course, possible to extend this relatively easily...
ftp://ftp.circlemud.org/pub/CircleMUD/contrib/code/wldswp.patch
-------------------------------------------------------------------------------
Offline Room String Database
This patch places all room titles and descriptions in a separate file that
is accessed every time they are needed. This differs from the other patch
that unloads room descriptions when they aren't needed. This patch saved
about 600 KB on a stock CircleMUD. Profiling this code showed that the
new functions take little time compared to some of the other functions.
This patch is based on stock CircleMUD bpl14.
The SIZE field is the important one, in KB.
With this patch:
USER PID %CPU %MEM SIZE RSS TTY STAT START TIME COMMAND
greerga 13818 35.7 4.1 3352 2636 4 S 13:47 0:02 bin/circle
Stock CircleMUD:
USER PID %CPU %MEM SIZE RSS TTY STAT START TIME COMMAND
greerga 13864 47.2 5.1 3988 3276 4 S 14:04 0:01 bin/circle
All of the resulting strings are packed into the database as tightly as
possible, even without a terminating NUL. The stock CircleMUD one ends up
being 453,201 bytes large. The extra 150 KB savings I surmise to be from
the saved malloc() overhead and ~15 KB saved from removing the 'name' and
'description' pointers.
--
George Greer, greerga@circlemud.org | Genius may have its limitations, but
http://patches.van.ml.org/ | stupidity is not thus handicapped.
http://www.van.ml.org/CircleMUD/ | -- Elbert Hubbard
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