diff --git a/scripts/install.sh b/scripts/install.sh
index 1fd97b4..c767b3d 100755
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -2,6 +2,10 @@
 
 FULL="$1"
 
+pushd $(dirname "$0") > /dev/null
+SCRIPTPATH=$(pwd -P)
+popd > /dev/null
+
 function install_apt() {
     apt-get install -y python-openssl python-novaclient python-cinderclient \
                        python-keystoneclient python-glanceclient python-faulthandler \
@@ -15,8 +19,8 @@
 
 function install_yum() {
     yum -y install pyOpenSSL python-novaclient python-cinderclient \
-                   python-keystoneclient python-glanceclient
-                   python-pip
+                   python-keystoneclient python-glanceclient \
+                   python-pip python-ecdsa
 
     if [ "$FULL" == "--full" ] ; then
         yum -y install scipy numpy python-matplotlib python-psutil
@@ -34,7 +38,7 @@
     fi
 fi
 
-pip install -r requirements.txt
+pip install -r "$SCRIPTPATH/../requirements.txt"
 
 if [ "$FULL" == "--full" ] ; then
     pip install oktest iso8601==0.1.10
diff --git a/wally/fuel_rest_api.py b/wally/fuel_rest_api.py
index a0eb1ef..728ac94 100644
--- a/wally/fuel_rest_api.py
+++ b/wally/fuel_rest_api.py
@@ -351,7 +351,8 @@
         creds['tenant_name'] = access['tenant']['value']
 
         version = FuelInfo(self.__connection__).get_version()
-        if version >= [7, 0]:            #only HTTPS since 7.0
+        # only HTTPS since 7.0
+        if version >= [7, 0]:
             creds['insecure'] = "True"
             creds['os_auth_url'] = "https://{0}:5000/v2.0".format(
                 self.get_networks()['public_vip'])
diff --git a/wally/suits/io/fio.py b/wally/suits/io/fio.py
index 5945ab7..a3f0fe3 100644
--- a/wally/suits/io/fio.py
+++ b/wally/suits/io/fio.py
@@ -745,8 +745,8 @@
 
                     time.sleep(self.retry_time)
 
-                    wait(pool.submit(reconnect, node.connection, node.conn_url)
-                         for node in self.config.nodes)
+                    wait([pool.submit(reconnect, node.connection, node.conn_url)
+                             for node in self.config.nodes])
 
                 fname = "{0}_task.fio".format(pos)
                 with open(os.path.join(self.config.log_directory, fname), "w") as fd:
diff --git a/wally/suits/io/rrd.cfg b/wally/suits/io/rrd.cfg
index d6c04a0..131688f 100644
--- a/wally/suits/io/rrd.cfg
+++ b/wally/suits/io/rrd.cfg
@@ -1,12 +1,18 @@
-[global]
-include defaults.cfg
+[test]
+buffered=0
+group_reporting=1
+iodepth=16
+unified_rw_reporting=1
+norandommap=1
+thread=1
+time_based=1
+wait_for_previous=1
+filename=/dev/rbd1
+size=4G
 ramp_time=15
 runtime=3600
-numjobs=60
+numjobs=30
 direct=1
-
-# ---------------------------------------------------------------------
-[test_{TEST_SUMM}]
 blocksize=60k
 rw=randwrite
-sync=1
+direct=1
diff --git a/wally/suits/io/test.cfg b/wally/suits/io/test.cfg
index 296da06..2977d1a 100644
--- a/wally/suits/io/test.cfg
+++ b/wally/suits/io/test.cfg
@@ -1,20 +1,19 @@
 [test1]
+ioengine=libaio
 buffered=0
 group_reporting=1
-iodepth=1
+iodepth=16
 unified_rw_reporting=1
 norandommap=1
 thread=1
 time_based=1
 wait_for_previous=1
-# this is critical for correct results in multy-node run
 randrepeat=0
 filename=/dev/rbd1
-size=10G
+size=4G
 ramp_time=10
-runtime=30
-numjobs=160
-sync=1
+runtime=300
+numjobs=16
 direct=1
 blocksize=60k
 rw=randwrite