Reduce the number of experiments in qps scans...

experiments/memcached_qps_scan.sh

 source "$EXP_ROOT/experiments/memcached.shared.sh"
 
-QPS_START_PER_THREAD=30000
-QPS_END_PER_THREAD=120000
-QPS_STEP_PER_THREAD=3000
+QPS_START_PER_THREAD=45000
+QPS_END_PER_THREAD=110000
+QPS_STEP_PER_THREAD=5000
 
 pre_start() {
     memcached_pre_start