From: Marek Vavruša <marek.vavrusa@nic.cz>
Date: Tue, 9 Jun 2015 17:06:16 +0000 (+0200)
Subject: daemon/worker: decommit memory every 1000nth pool delete
X-Git-Tag: v1.0.0-beta1~120^2~14
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=71db340cf1d4decb8a66c6d191aca1884acbba9c;p=thirdparty%2Fknot-resolver.git

daemon/worker: decommit memory every 1000nth pool delete
---

diff --git a/daemon/worker.c b/daemon/worker.c
index 06b165e56..fb97ac6a6 100644
--- a/daemon/worker.c
+++ b/daemon/worker.c
@@ -14,6 +14,7 @@
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <malloc.h>
 #include <uv.h>
 #include <libknot/packet/pkt.h>
 #include <libknot/internal/net.h>
@@ -137,6 +138,14 @@ static void qr_task_free(uv_handle_t *handle)
 		array_push(worker->pools, mp_context);
 	} else {
 		mp_delete(mp_context);
+#ifdef _GNU_SOURCE
+		/* Decommit memory every once in a while */
+		static int mp_delete_count = 0;
+		if (++mp_delete_count == 1000) {
+			malloc_trim(0);
+			mp_delete_count = 0;
+		}
+#endif
 	}
 }