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Bessere hashgröße für seenhash

This commit is contained in:
Enno Rehling 2006-02-14 23:03:49 +00:00
parent 7d856b43da
commit 61a6a52665
1 changed files with 22 additions and 22 deletions
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44
src/common/kernel/reports.c
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@ -968,7 +968,7 @@ get_addresses(report_context * ctx)
ctx->addresses = flist; ctx->addresses = flist;
} }
#define MAXSEEHASH 10007 #define MAXSEEHASH 0x3000
seen_region * reuse; seen_region * reuse;
seen_region ** seen_region **
@ -1005,13 +1005,13 @@ free_seen(void)
seen_region * seen_region *
find_seen(struct seen_region * seehash[], const region * r) find_seen(struct seen_region * seehash[], const region * r)
{ {
unsigned int index = reg_hashkey(r) % MAXSEEHASH; unsigned int index = reg_hashkey(r) & (MAXSEEHASH-1);
seen_region * find = seehash[index]; seen_region * find = seehash[index];
while (find) { while (find) {
if (find->r==r) return find; if (find->r==r) return find;
find=find->nextHash; find=find->nextHash;
} }
return NULL; return NULL;
} }
static void static void
@ -1037,21 +1037,21 @@ get_seen_interval(report_context * ctx)
boolean boolean
add_seen(struct seen_region * seehash[], struct region * r, unsigned char mode, boolean dis) add_seen(struct seen_region * seehash[], struct region * r, unsigned char mode, boolean dis)
{ {
seen_region * find = find_seen(seehash, r); seen_region * find = find_seen(seehash, r);
if (find==NULL) { if (find==NULL) {
unsigned int index = reg_hashkey(r) % MAXSEEHASH; unsigned int index = reg_hashkey(r) & (MAXSEEHASH-1);
if (!reuse) reuse = (seen_region*)calloc(1, sizeof(struct seen_region)); if (!reuse) reuse = (seen_region*)calloc(1, sizeof(struct seen_region));
find = reuse; find = reuse;
reuse = reuse->nextHash; reuse = reuse->nextHash;
find->nextHash = seehash[index]; find->nextHash = seehash[index];
seehash[index] = find; seehash[index] = find;
find->r = r; find->r = r;
} else if (find->mode >= mode) { } else if (find->mode >= mode) {
return false; return false;
} }
find->mode = mode; find->mode = mode;
find->disbelieves |= dis; find->disbelieves |= dis;
return true; return true;
} }
typedef struct report_type { typedef struct report_type {