diff --git a/sysbench.sh b/sysbench.sh
index 444c91b..9823b6e 100644
--- a/sysbench.sh
+++ b/sysbench.sh
@@ -1,54 +1,36 @@
 #!/bin/bash
 
-if [ ! -f /etc/apt/sources.list.d/akopytov_sysbench.list ];then
-echo "#################################" 
-echo "installing sysbench" 
-echo "#################################"
-wget -qO sysbench-install.sh https://packagecloud.io/install/repositories/akopytov/sysbench/script.deb.sh
-chmod +x sysbench-install.sh
-./sysbench-install.sh > /dev/null 2>&1
-apt-get install -y  sysbench
+if [ ! -f /etc/apt/sources.list.d/akopytov_sysbench.list ]; then
+    echo "#################################"
+    echo "installing sysbench"
+    echo "#################################"
+    {
+        curl -sL https://packagecloud.io/install/repositories/akopytov/sysbench/script.deb.sh | bash
+        apt update && apt install -y sysbench
+    } >/dev/null 2>&1
 fi
 
-echo "" > sysbench.log
+echo "" >sysbench.log
 
-
-{
-echo "#################################" 
-echo "CPU Benchmark" 
+echo "#################################"
+echo "CPU Benchmark"
 echo "#################################"
 echo ""
-} >> sysbench.log
 
 echo "starting CPU Benchmark"
 
-sysbench cpu --cpu-max-prime=20000 run >> sysbench.log
+sysbench cpu --cpu-max-prime=20000 run
 
 echo "CPU Benchmark : [OK]"
 
-{
 echo ""
-echo "#################################" 
-echo "RAM Benchmark" 
+echo "#################################"
+echo "Disk Benchmark"
 echo "#################################"
 echo ""
-} >> sysbench.log
-
-echo "starting RAM Benchmark"
-sysbench memory --memory-block-size=1K --memory-total-size=100G  run >> sysbench.log
-
-echo "RAM Benchmark : [OK]"
-
-{
-echo ""
-echo "#################################" 
-echo "Disk Benchmark" 
-echo "#################################"
-echo ""
-} >> sysbench.log
 echo "starting Disk Benchmark"
 sysbench fileio --file-total-size=5G prepare &>/dev/null
-sysbench fileio --file-total-size=5G --file-test-mode=rndrw --time=300 --max-requests=0 run >> sysbench.log
+sysbench fileio --file-total-size=5G --file-test-mode=rndrw --time=300 --max-requests=0 run >>sysbench.log
 sysbench fileio --file-total-size=5G cleanup &>/dev/null
 
 echo "Disk Benchmark : [OK]"