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Slabbed hash table. Drops contention on hash table main lock.

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git-svn-id: file:///svn/unbound/trunk@194 be551aaa-1e26-0410-a405-d3ace91eadb9
This commit is contained in:
Wouter Wijngaards
2007-03-23 15:17:11 +00:00
parent 2092d6535a
commit f559c3c2ca
11 changed files with 711 additions and 12 deletions
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testcode/checklocks.c
+8 -2
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@@ -51,6 +51,11 @@
*/
#ifdef USE_THREAD_DEBUG
/** How long to wait before lock attempt is a failure. */
#define CHECK_LOCK_TIMEOUT 15 /* seconds */
/** How long to wait before join attempt is a failure. */
#define CHECK_JOIN_TIMEOUT 120 /* seconds */
/** if key has been created */
static int key_created = 0;
/** we hide the thread debug info with this key. */
@@ -326,10 +331,11 @@ checklock_destroy(enum check_lock_type type, struct checked_lock** lock,
/* contention, look at fraction in trouble. */
if(e->history_count > 1 &&
1000*e->contention_count/e->history_count > contention_interest) {
log_info("lock created %s %s %d has contention %u of %u",
log_info("lock created %s %s %d has contention %u of %u (%d%%)",
e->create_func, e->create_file, e->create_line,
(unsigned int)e->contention_count,
(unsigned int)e->history_count);
(unsigned int)e->history_count,
100*e->contention_count/e->history_count);
}
/* delete it */