diff --git a/liblog/log_is_loggable.c b/liblog/log_is_loggable.c
index 79a5670..bd8d5af 100644
--- a/liblog/log_is_loggable.c
+++ b/liblog/log_is_loggable.c
@@ -63,7 +63,6 @@
 
 static void refresh_cache(struct cache *cache, const char *key)
 {
-    uint32_t serial;
     char buf[PROP_VALUE_MAX];
 
     if (!cache->pinfo) {
@@ -71,13 +70,8 @@
         if (!cache->pinfo) {
             return;
         }
-        cache->serial = -1;
     }
-    serial = __system_property_serial(cache->pinfo);
-    if (serial == cache->serial) {
-        return;
-    }
-    cache->serial = serial;
+    cache->serial = __system_property_serial(cache->pinfo);
     __system_property_read(cache->pinfo, 0, buf);
     switch(buf[0]) {
     case 't': case 'T':
diff --git a/liblog/tests/liblog_test.cpp b/liblog/tests/liblog_test.cpp
index 329898f..6aa4fb7 100644
--- a/liblog/tests/liblog_test.cpp
+++ b/liblog/tests/liblog_test.cpp
@@ -1277,7 +1277,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_FALSE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_FALSE(__android_log_is_loggable(
                         levels[i].level, tag, levels[j].level));
                 }
@@ -1286,7 +1286,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_TRUE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_TRUE(__android_log_is_loggable(
                         levels[i].level, tag, levels[j].level));
                 }
@@ -1318,7 +1318,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_FALSE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_FALSE(__android_log_is_loggable(
                         levels[i].level, tag, ANDROID_LOG_DEBUG));
                 }
@@ -1327,7 +1327,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_TRUE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_TRUE(__android_log_is_loggable(
                         levels[i].level, tag, ANDROID_LOG_DEBUG));
                 }
@@ -1347,7 +1347,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_FALSE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_FALSE(__android_log_is_loggable(
                         levels[i].level, tag, ANDROID_LOG_DEBUG));
                 }
@@ -1356,7 +1356,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_TRUE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_TRUE(__android_log_is_loggable(
                         levels[i].level, tag, ANDROID_LOG_DEBUG));
                 }
@@ -1378,7 +1378,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_FALSE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_FALSE(__android_log_is_loggable(
                         levels[i].level, tag, ANDROID_LOG_DEBUG));
                 }
@@ -1387,7 +1387,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_TRUE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_TRUE(__android_log_is_loggable(
                         levels[i].level, tag, ANDROID_LOG_DEBUG));
                 }
@@ -1407,7 +1407,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_FALSE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_FALSE(__android_log_is_loggable(
                         levels[i].level, tag, ANDROID_LOG_DEBUG));
                 }
@@ -1416,7 +1416,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_TRUE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_TRUE(__android_log_is_loggable(
                         levels[i].level, tag, ANDROID_LOG_DEBUG));
                 }
@@ -1452,7 +1452,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_FALSE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_FALSE(__android_log_is_loggable(
                         levels[i].level, tag, ANDROID_LOG_DEBUG));
                 }
@@ -1461,7 +1461,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_TRUE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_TRUE(__android_log_is_loggable(
                         levels[i].level, tag, ANDROID_LOG_DEBUG));
                 }
@@ -1481,7 +1481,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_FALSE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_FALSE(__android_log_is_loggable(
                         levels[i].level, tag, ANDROID_LOG_DEBUG));
                 }
@@ -1490,7 +1490,7 @@
                     fprintf(stderr, "\n");
                 }
                 EXPECT_TRUE(android_log_is_loggable);
-                for(size_t k = 1000; k; --k) {
+                for(size_t k = 10; k; --k) {
                     EXPECT_TRUE(__android_log_is_loggable(
                         levels[i].level, tag, ANDROID_LOG_DEBUG));
                 }