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Re: Memory leaks and regexp


On Solaris 2.5.1, both Guile 1.2 and guile-core-19980514 appear to
leak memory in regexp-exec.  Below you can see output from ps and
(gc-stats) over time

 1. Fresh guile-core-19980514
 2. After 10000 calls to regexp-exec
 3. After 100000 calls to regexp-exec
 4. After (expt 10 6) calls to regexp-exec

  USER       PID %CPU %MEM   SZ  RSS TT       S    START  TIME COMMAND
1 kf        8639 10.2  3.8 2968 2380 pts/4    S 15:40:13  0:06 guile
2 kf        8639  0.1  4.4 3340 2780 pts/4    S 15:40:13  0:08 guile
3 kf        8639 27.0  8.9 6164 5604 pts/4    S 15:40:13  0:24 guile
4 kf        8639  1.2 43.43440427480 pts/4    S 15:40:13  3:04 guile

1 ((gc-time-taken . 114) 
   (cells-allocated . 59683) 
   (cell-heap-size . 98304) (bytes-malloced . 100081) 
   (gc-malloc-threshold . 150000) 
   (cell-heap-segments (428896 . 166752) (1098936 . 574648)))
2 ((gc-time-taken . 164) 
   (cells-allocated . 26660) 
   (cell-heap-size . 98304) (bytes-malloced . 339285) 
   (gc-malloc-threshold . 506290) 
   (cell-heap-segments (428896 . 166752) (1098936 . 574648)))
3 ((gc-time-taken . 374) 
   (cells-allocated . 71275) 
   (cell-heap-size . 98304) (bytes-malloced . 2499278) 
   (gc-malloc-threshold . 2563150)
   (cell-heap-segments (428896 . 166752) (1098936 . 574648)))
4 ((gc-time-taken . 2394) 
   (cells-allocated . 78698) 
   (cell-heap-size . 98304) (bytes-malloced . 24099306) 
   (gc-malloc-threshold . 29196388) 
   (cell-heap-segments (428896 . 166752) (1098936 . 574648)))

Hope this helps,
Roland