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don't use separate memory contexts for res buckets without threads

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Download because it doesn't have any benefit and requires more memory.
(RT #17898)
This commit is contained in:
Tatuya JINMEI 神明達哉
2008-03-28 17:19:11 +00:00
parent f703353673
commit e0258ba438
1 changed files with 11 additions and 1 deletions
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12
lib/dns/resolver.c
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@@ -15,12 +15,13 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: resolver.c,v 1.359 2008/01/18 23:46:58 tbox Exp $ */
/* $Id: resolver.c,v 1.360 2008/03/28 17:19:11 jinmei Exp $ */
/*! \file */
#include <config.h>
#include <isc/platform.h>
#include <isc/print.h>
#include <isc/string.h>
#include <isc/random.h>
@@ -6349,12 +6350,21 @@ dns_resolver_create(dns_view_t *view,
goto cleanup_buckets;
}
res->buckets[i].mctx = NULL;
#ifdef ISC_PLATFORM_USETHREADS
/*
* Use a separate memory context for each bucket to reduce
* contention among multiple threads. Do this only when
* enabling threads because it will be require more memory.
*/
result = isc_mem_create(0, 0, &res->buckets[i].mctx);
if (result != ISC_R_SUCCESS) {
isc_task_detach(&res->buckets[i].task);
DESTROYLOCK(&res->buckets[i].lock);
goto cleanup_buckets;
}
#else
isc_mem_attach(view->mctx, &res->buckets[i].mctx);
#endif
snprintf(name, sizeof(name), "res%u", i);
isc_task_setname(res->buckets[i].task, name, res);
ISC_LIST_INIT(res->buckets[i].fctxs);