diff --git a/hack/benchmark/README.md b/hack/benchmark/README.md
deleted file mode 100644
index 6a09c5302..000000000
--- a/hack/benchmark/README.md
+++ /dev/null
@@ -1,14 +0,0 @@
-## Usage
-
-Benchmark 3-member etcd cluster to get its read and write performance.
-
-## Instructions
-
-1. Start 3-member etcd cluster on 3 machines
-2. Update `$leader` and `$servers` in the script
-3. Run the script in a separate machine
-
-## Caveat
-
-1. Set environment variable `GOMAXPROCS` as the number of available cores to maximize CPU resources for both etcd member and bench process.
-2. Set the number of open files per process as 10000 for amounts of client connections for both etcd member and benchmark process.
diff --git a/hack/benchmark/bench.sh b/hack/benchmark/bench.sh
deleted file mode 100755
index d72efd3e2..000000000
--- a/hack/benchmark/bench.sh
+++ /dev/null
@@ -1,65 +0,0 @@
-#!/bin/bash -e
-
-leader=http://localhost:2379
-# assume three servers
-servers=( http://localhost:2379 http://localhost:22379 http://localhost:32379 )
-
-keyarray=( 64 256 )
-
-for keysize in ${keyarray[@]}; do
-
-  echo write, 1 client, $keysize key size, to leader
-  ./hey -m PUT -n 10 -d value=`head -c $keysize < /dev/zero | tr '\0' '\141'` -c 1 -T application/x-www-form-urlencoded $leader/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
-
-  echo write, 64 client, $keysize key size, to leader
-  ./hey -m PUT -n 640 -d value=`head -c $keysize < /dev/zero | tr '\0' '\141'` -c 64 -T application/x-www-form-urlencoded $leader/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
-
-  echo write, 256 client, $keysize key size, to leader
-  ./hey -m PUT -n 2560 -d value=`head -c $keysize < /dev/zero | tr '\0' '\141'` -c 256 -T application/x-www-form-urlencoded $leader/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
-
-  echo write, 64 client, $keysize key size, to all servers
-  for i in ${servers[@]}; do
-    ./hey -m PUT -n 210 -d value=`head -c $keysize < /dev/zero | tr '\0' '\141'` -c 21 -T application/x-www-form-urlencoded $i/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo &
-  done
-  # wait for all heys to start running
-  sleep 3
-  # wait for all heys to finish
-  for pid in $(pgrep 'hey'); do
-    while kill -0 "$pid" 2> /dev/null; do
-      sleep 3
-    done
-  done
-
-  echo write, 256 client, $keysize key size, to all servers
-  for i in ${servers[@]}; do
-    ./hey -m PUT -n 850 -d value=`head -c $keysize < /dev/zero | tr '\0' '\141'` -c 85 -T application/x-www-form-urlencoded $i/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo &
-  done
-  sleep 3
-  for pid in $(pgrep 'hey'); do
-    while kill -0 "$pid" 2> /dev/null; do
-      sleep 3
-    done
-  done
-
-  echo read, 1 client, $keysize key size, to leader
-  ./hey -n 100 -c 1 $leader/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
-
-  echo read, 64 client, $keysize key size, to leader
-  ./hey -n 6400 -c 64 $leader/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
-
-  echo read, 256 client, $keysize key size, to leader
-  ./hey -n 25600 -c 256 $leader/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
-
-  echo read, 64 client, $keysize key size, to all servers
-  # bench servers one by one, so it doesn't overload this benchmark machine
-  # It doesn't impact correctness because read request doesn't involve peer interaction.
-  for i in ${servers[@]}; do
-    ./hey -n 21000 -c 21 $i/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
-  done
-
-  echo read, 256 client, $keysize key size, to all servers
-  for i in ${servers[@]}; do
-    ./hey -n 85000 -c 85 $i/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
-  done
-
-done