diff --git a/distribution/benchmark/runclass.sh b/distribution/benchmark/runclass.sh
index 13c58d198c179812374ea354a59ab1acdc348fd1..339e11a2e4351945cb6b10c92bf2aa26dca39e67 100644
--- a/distribution/benchmark/runclass.sh
+++ b/distribution/benchmark/runclass.sh
@@ -24,13 +24,41 @@ fi
 BASE_DIR=$(dirname $0)/..
 CLASSPATH=.:${BASE_DIR}/conf:${CLASSPATH}
 
+# The RAMDisk initializing size in MB on Darwin OS for gc-log
+DIR_SIZE_IN_MB=600
+
+choose_gc_log_directory()
+{
+    case "`uname`" in
+        Darwin)
+            if [ ! -d "/Volumes/RAMDisk" ]; then
+                # create ram disk on Darwin systems as gc-log directory
+                DEV=`hdiutil attach -nomount ram://$((2 * 1024 * DIR_SIZE_IN_MB))` > /dev/null
+                diskutil eraseVolume HFS+ RAMDisk ${DEV} > /dev/null
+                echo "Create RAMDisk /Volumes/RAMDisk for gc logging on Darwin OS."
+            fi
+            GC_LOG_DIR="/Volumes/RAMDisk"
+        ;;
+        *)
+            # check if /dev/shm exists on other systems
+            if [ -d "/dev/shm" ]; then
+                GC_LOG_DIR="/dev/shm"
+            else
+                GC_LOG_DIR=${BASE_DIR}
+            fi
+        ;;
+    esac
+}
+
+choose_gc_log_directory
+
 JAVA_OPT="${JAVA_OPT} -server -Xms1g -Xmx1g -Xmn256m -XX:PermSize=128m -XX:MaxPermSize=320m"
 JAVA_OPT="${JAVA_OPT} -XX:+UseConcMarkSweepGC -XX:+UseCMSCompactAtFullCollection -XX:CMSInitiatingOccupancyFraction=70 -XX:+CMSParallelRemarkEnabled -XX:SoftRefLRUPolicyMSPerMB=0 -XX:+CMSClassUnloadingEnabled -XX:SurvivorRatio=8 -XX:+DisableExplicitGC"
-JAVA_OPT="${JAVA_OPT} -verbose:gc -Xloggc:/dev/shm/rmq_srv_gc.log -XX:+PrintGCDetails"
+JAVA_OPT="${JAVA_OPT} -verbose:gc -Xloggc:${GC_LOG_DIR}/rmq_run_class_gc_%p_%t.log -XX:+PrintGCDetails"
 JAVA_OPT="${JAVA_OPT} -XX:-OmitStackTraceInFastThrow"
 JAVA_OPT="${JAVA_OPT} -Djava.ext.dirs=${BASE_DIR}/lib"
-JAVA_OPT="${JAVA_OPT}  -XX:-UseLargePages"
-JAVA_OPT="${JAVA_OPT}  -XX:+PerfDisableSharedMem"
+JAVA_OPT="${JAVA_OPT} -XX:-UseLargePages"
+JAVA_OPT="${JAVA_OPT} -XX:+PerfDisableSharedMem"
 #JAVA_OPT="${JAVA_OPT} -Xdebug -Xrunjdwp:transport=dt_socket,address=9555,server=y,suspend=n"
 JAVA_OPT="${JAVA_OPT} -cp ${CLASSPATH}"
 
diff --git a/distribution/bin/runbroker.sh b/distribution/bin/runbroker.sh
index df962b4a275fdef8c62b729f6c53b7df6c037668..0ccbf7725c229fd1f9300c98b19ce00884081655 100644
--- a/distribution/bin/runbroker.sh
+++ b/distribution/bin/runbroker.sh
@@ -36,9 +36,37 @@ export CLASSPATH=.:${BASE_DIR}/conf:${CLASSPATH}
 #===========================================================================================
 # JVM Configuration
 #===========================================================================================
+# The RAMDisk initializing size in MB on Darwin OS for gc-log
+DIR_SIZE_IN_MB=600
+
+choose_gc_log_directory()
+{
+    case "`uname`" in
+        Darwin)
+            if [ ! -d "/Volumes/RAMDisk" ]; then
+                # create ram disk on Darwin systems as gc-log directory
+                DEV=`hdiutil attach -nomount ram://$((2 * 1024 * DIR_SIZE_IN_MB))` > /dev/null
+                diskutil eraseVolume HFS+ RAMDisk ${DEV} > /dev/null
+                echo "Create RAMDisk /Volumes/RAMDisk for gc logging on Darwin OS."
+            fi
+            GC_LOG_DIR="/Volumes/RAMDisk"
+        ;;
+        *)
+            # check if /dev/shm exists on other systems
+            if [ -d "/dev/shm" ]; then
+                GC_LOG_DIR="/dev/shm"
+            else
+                GC_LOG_DIR=${BASE_DIR}
+            fi
+        ;;
+    esac
+}
+
+choose_gc_log_directory
+
 JAVA_OPT="${JAVA_OPT} -server -Xms8g -Xmx8g -Xmn4g"
 JAVA_OPT="${JAVA_OPT} -XX:+UseG1GC -XX:G1HeapRegionSize=16m -XX:G1ReservePercent=25 -XX:InitiatingHeapOccupancyPercent=30 -XX:SoftRefLRUPolicyMSPerMB=0"
-JAVA_OPT="${JAVA_OPT} -verbose:gc -Xloggc:/dev/shm/mq_gc_%p.log -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCApplicationStoppedTime -XX:+PrintAdaptiveSizePolicy"
+JAVA_OPT="${JAVA_OPT} -verbose:gc -Xloggc:${GC_LOG_DIR}/rmq_broker_gc_%p_%t.log -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCApplicationStoppedTime -XX:+PrintAdaptiveSizePolicy"
 JAVA_OPT="${JAVA_OPT} -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=5 -XX:GCLogFileSize=30m"
 JAVA_OPT="${JAVA_OPT} -XX:-OmitStackTraceInFastThrow"
 JAVA_OPT="${JAVA_OPT} -XX:+AlwaysPreTouch"
diff --git a/distribution/bin/runserver.sh b/distribution/bin/runserver.sh
index 908c79df9467ee4cf4f80387260fbbb324ac1c43..d2bbdedbceafc8164a99509e007d829dad41a506 100644
--- a/distribution/bin/runserver.sh
+++ b/distribution/bin/runserver.sh
@@ -36,11 +36,40 @@ export CLASSPATH=.:${BASE_DIR}/conf:${CLASSPATH}
 #===========================================================================================
 # JVM Configuration
 #===========================================================================================
+# The RAMDisk initializing size in MB on Darwin OS for gc-log
+DIR_SIZE_IN_MB=600
+
+choose_gc_log_directory()
+{
+    case "`uname`" in
+        Darwin)
+            if [ ! -d "/Volumes/RAMDisk" ]; then
+                # create ram disk on Darwin systems as gc-log directory
+                DEV=`hdiutil attach -nomount ram://$((2 * 1024 * DIR_SIZE_IN_MB))` > /dev/null
+                diskutil eraseVolume HFS+ RAMDisk ${DEV} > /dev/null
+                echo "Create RAMDisk /Volumes/RAMDisk for gc logging on Darwin OS."
+            fi
+            GC_LOG_DIR="/Volumes/RAMDisk"
+        ;;
+        *)
+            # check if /dev/shm exists on other systems
+            if [ -d "/dev/shm" ]; then
+                GC_LOG_DIR="/dev/shm"
+            else
+                GC_LOG_DIR=${BASE_DIR}
+            fi
+        ;;
+    esac
+}
+
+choose_gc_log_directory
+
 JAVA_OPT="${JAVA_OPT} -server -Xms4g -Xmx4g -Xmn2g -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m"
 JAVA_OPT="${JAVA_OPT} -XX:+UseConcMarkSweepGC -XX:+UseCMSCompactAtFullCollection -XX:CMSInitiatingOccupancyFraction=70 -XX:+CMSParallelRemarkEnabled -XX:SoftRefLRUPolicyMSPerMB=0 -XX:+CMSClassUnloadingEnabled -XX:SurvivorRatio=8  -XX:-UseParNewGC"
-JAVA_OPT="${JAVA_OPT} -verbose:gc -Xloggc:/dev/shm/rmq_srv_gc.log -XX:+PrintGCDetails"
+JAVA_OPT="${JAVA_OPT} -verbose:gc -Xloggc:${GC_LOG_DIR}/rmq_srv_gc_%p_%t.log -XX:+PrintGCDetails"
+JAVA_OPT="${JAVA_OPT} -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=5 -XX:GCLogFileSize=30m"
 JAVA_OPT="${JAVA_OPT} -XX:-OmitStackTraceInFastThrow"
-JAVA_OPT="${JAVA_OPT}  -XX:-UseLargePages"
+JAVA_OPT="${JAVA_OPT} -XX:-UseLargePages"
 JAVA_OPT="${JAVA_OPT} -Djava.ext.dirs=${JAVA_HOME}/jre/lib/ext:${BASE_DIR}/lib"
 #JAVA_OPT="${JAVA_OPT} -Xdebug -Xrunjdwp:transport=dt_socket,address=9555,server=y,suspend=n"
 JAVA_OPT="${JAVA_OPT} ${JAVA_OPT_EXT}"