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memory footprint improvements.

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git-svn-id: file:///svn/unbound/trunk@778 be551aaa-1e26-0410-a405-d3ace91eadb9
This commit is contained in:
Wouter Wijngaards
2007-11-27 15:52:41 +00:00
parent 9d3b5fa30d
commit f64778a893
4 changed files with 21 additions and 38 deletions
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testcode/memstats.c
+14 -35
View File
@@ -60,14 +60,8 @@ struct codeline {
uint64_t alloc;
/** number of bytes freed */
uint64_t free;
};
/**
* Other allocation stats
*/
struct alloc_misc {
/** number of region allocs */
uint64_t region_alloc;
/** number allocations and frees */
uint64_t calls;
};
/** print usage and exit */
@@ -101,18 +95,6 @@ match(char* line)
return 0;
}
/** read up the region stats */
static void
read_region_stat(char* line, struct alloc_misc* misc)
{
long num = 0;
if(sscanf(line+50, "%ld", &num) != 1) {
printf("%s\n%s\n", line, line+50);
fatal_exit("unhandled region");
}
misc->region_alloc += num;
}
/** find or alloc codeline in tree */
static struct codeline*
get_codeline(rbtree_t* tree, char* key, char* func)
@@ -153,6 +135,7 @@ read_malloc_stat(char* line, rbtree_t* tree)
if(!cl)
fatal_exit("alloc failure");
cl->alloc += num;
cl->calls ++;
}
/** read up the calloc stats */
@@ -177,6 +160,7 @@ read_calloc_stat(char* line, rbtree_t* tree)
if(!cl)
fatal_exit("alloc failure");
cl->alloc += num*sz;
cl->calls ++;
}
/** get size of file */
@@ -192,7 +176,7 @@ get_file_size(const char* fname)
/** read the logfile */
static void
readfile(rbtree_t* tree, const char* fname, struct alloc_misc* misc)
readfile(rbtree_t* tree, const char* fname)
{
off_t total = get_file_size(fname);
off_t done = (off_t)0;
@@ -213,8 +197,6 @@ readfile(rbtree_t* tree, const char* fname, struct alloc_misc* misc)
if(!match(buf))
continue;
if(strncmp(buf+36, "region ", 7) == 0)
read_region_stat(buf, misc);
else if(strstr(buf+36, "malloc("))
read_malloc_stat(buf, tree);
else if(strstr(buf+36, "calloc("))
@@ -230,20 +212,19 @@ readfile(rbtree_t* tree, const char* fname, struct alloc_misc* misc)
/** print memory stats */
static void
printstats(rbtree_t* tree, struct alloc_misc* misc)
printstats(rbtree_t* tree)
{
struct codeline* cl;
uint64_t total = 0;
printf("%12lld in region alloc\n", (long long)misc->region_alloc);
total += misc->region_alloc;
uint64_t total = 0, tcalls = 0;
RBTREE_FOR(cl, struct codeline*, tree) {
printf("%12lld in %s %s\n", (long long)cl->alloc,
cl->codeline, cl->func);
printf("%12lld / %8lld in %s %s\n", (long long)cl->alloc,
(long long)cl->calls, cl->codeline, cl->func);
total += cl->alloc;
tcalls += cl->calls;
}
printf("------------\n");
printf("%12lld total in %ld code lines\n", (long long)total,
(long)tree->count);
printf("%12lld / %8lld total in %ld code lines\n", (long long)total,
(long long)tcalls, (long)tree->count);
printf("\n");
}
@@ -251,15 +232,13 @@ printstats(rbtree_t* tree, struct alloc_misc* misc)
int main(int argc, const char* argv[])
{
rbtree_t* tree = 0;
struct alloc_misc misc;
if(argc != 2) {
usage();
}
tree = rbtree_create(codeline_cmp);
if(!tree)
fatal_exit("alloc failure");
memset(&misc, 0, sizeof(misc));
readfile(tree, argv[1], &misc);
printstats(tree, &misc);
readfile(tree, argv[1]);
printstats(tree);
return 0;
}