From: taeyoung <ty317.kim@samsung.com>
Date: Mon, 27 Jun 2016 12:21:52 +0000 (+0900)
Subject: gdbm: reduce cache size to 10
X-Git-Tag: submit/tizen/20160628.013526^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7e73c33ecbe3c8187cba3eab433c6ce6661c99ae;p=platform%2Fcore%2Fapi%2Fsystem-info.git

gdbm: reduce cache size to 10

- Before reducing cache size, HEAP size allocated
  was 428kB with test app.
- After reducing cache size, HEAP size allocated
  is decreased to 64kB.
- The performance to read data is not decreased.

Change-Id: I68809bbbe3e1345b726bfdba3d8bd39e807f9381
Signed-off-by: taeyoung <ty317.kim@samsung.com>
---

diff --git a/src/system_info.c b/src/system_info.c
index d61262e..ff4d7cf 100644
--- a/src/system_info.c
+++ b/src/system_info.c
@@ -35,6 +35,8 @@
 #define KEY_MAX 256
 #define STR_MAX 256
 
+#define GDBM_CACHE_SIZE 10 /* GDBM default == 100 */
+
 enum tag_type {
 	TAG_TYPE_PLATFORM,
 	TAG_TYPE_CUSTOM,
@@ -69,6 +71,7 @@ static int db_get_value(enum tag_type tag, const char *key,
 	datum d_data;
 	int ret;
 	char *tag_s;
+	int cache_size = GDBM_CACHE_SIZE;
 
 	if (!key || !type || !value)
 		return SYSTEM_INFO_ERROR_INVALID_PARAMETER;
@@ -90,6 +93,10 @@ static int db_get_value(enum tag_type tag, const char *key,
 		return SYSTEM_INFO_ERROR_IO_ERROR;
 	}
 
+	ret = gdbm_setopt(db, GDBM_CACHESIZE, &cache_size, sizeof(cache_size));
+	if (ret < 0)
+		_E("Failed to set cache size to (%d) (ret:%d)", cache_size, gdbm_errno);
+
 	if (strstr(key, KEY_PREFIX) == key)
 		snprintf(key_internal, sizeof(key_internal),
 				"%s:%s:%s", key, type, tag_s);
@@ -135,6 +142,7 @@ static int system_info_get_type(enum tag_type tag, const char *key,
 	datum d_data;
 	int ret, i;
 	char *tag_s;
+	int cache_size = GDBM_CACHE_SIZE;
 
 	if (!key || !type)
 		return SYSTEM_INFO_ERROR_INVALID_PARAMETER;
@@ -156,6 +164,10 @@ static int system_info_get_type(enum tag_type tag, const char *key,
 		return SYSTEM_INFO_ERROR_IO_ERROR;
 	}
 
+	ret = gdbm_setopt(db, GDBM_CACHESIZE, &cache_size, sizeof(cache_size));
+	if (ret < 0)
+		_E("Failed to set cache size to (%d) (ret:%d)", cache_size, gdbm_errno);
+
 	for (i = 0 ; i < ARRAY_SIZE(info_type); i++) {
 		if (strstr(key, KEY_PREFIX) == key)
 			snprintf(key_internal, sizeof(key_internal),