Markus Armbruster
8f92fe40f4
Memory usage didn't include path (adp->path), neighbor cache (adp->neighbor_coords, adp->neighbor_nodes), and the hash table (adp->hashtab). While there, print path length. To get A* statistics on stderr, compile with AS_STATS defined.
88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
/*
|
|
* A* Search - A search library used in Empire to determine paths between
|
|
* objects.
|
|
* Copyright (C) 1990-1998 Phil Lapsley
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include "as.h"
|
|
|
|
/*
|
|
* Print statistics on algorithm performance to the file pointer "fp".
|
|
*/
|
|
void
|
|
as_stats(struct as_data *adp, FILE * fp)
|
|
{
|
|
int i;
|
|
int j;
|
|
int total_q;
|
|
int total_p;
|
|
int total_h;
|
|
size_t other;
|
|
struct as_queue *qp;
|
|
struct as_path *pp;
|
|
struct as_hash *hp;
|
|
|
|
fprintf(fp, "Statistics:\n");
|
|
|
|
fprintf(fp, "queue lengths:\n");
|
|
total_q = 0;
|
|
total_h = 0;
|
|
for (i = 0, qp = adp->head; qp; qp = qp->next)
|
|
i++;
|
|
fprintf(fp, "\tmain:\t%d\n", i);
|
|
total_q += i;
|
|
for (i = 0, qp = adp->tried; qp; qp = qp->next)
|
|
i++;
|
|
fprintf(fp, "\ttried:\t%d\n", i);
|
|
total_q += i;
|
|
for (i = 0, qp = adp->subsumed; qp; qp = qp->next)
|
|
i++;
|
|
fprintf(fp, "\tsubsumed:\t%d\n", i);
|
|
total_q += i;
|
|
for (i = 0, pp = adp->path; pp; pp = pp->next)
|
|
i++;
|
|
total_p = i;
|
|
fprintf(fp, "path length: %d\n", total_p);
|
|
fprintf(fp, "hash table statistics (size %d):\n", adp->hashsize);
|
|
for (i = 0; i < adp->hashsize; i++) {
|
|
for (j = 0, hp = adp->hashtab[i]; hp; hp = hp->next)
|
|
j++;
|
|
fprintf(fp, "\t%d\t%d\n", i, j);
|
|
total_h += j;
|
|
}
|
|
fprintf(fp, "\ttotal\t%d\n", total_h);
|
|
fprintf(fp, "approximate memory usage (bytes):\n");
|
|
fprintf(fp, "\tqueues\t%d\n",
|
|
(int)(total_q * sizeof(struct as_queue)));
|
|
fprintf(fp, "\tnodes\t%d\n", (int)(total_q * sizeof(struct as_node)));
|
|
fprintf(fp, "\tpath\t%d\n", (int)(total_p * sizeof(struct as_path)));
|
|
fprintf(fp, "\thash ents\t%d\n",
|
|
(int)(total_h * sizeof(struct as_hash)));
|
|
other = sizeof(struct as_data);
|
|
other += adp->maxneighbors * sizeof(struct as_coord);
|
|
other += (adp->maxneighbors + 1) * sizeof(struct as_node *);
|
|
other += adp->hashsize * sizeof(struct as_hash *);
|
|
fprintf(fp, "\tother\t%d\n", (int)other);
|
|
fprintf(fp, "\ttotal\t%d\n",
|
|
(int)(total_q * sizeof(struct as_queue) +
|
|
total_q * sizeof(struct as_node) +
|
|
total_p * sizeof(struct as_path) +
|
|
total_h * sizeof(struct as_hash) +
|
|
other));
|
|
}
|