Simple curl benchmarking - http://notes.webutvikling.org/quick-http-benchmarking-with-curl/

benchmark.sh

# Simple curl benchmarking
#
# Example: 10 (sequential) calls towards google.com
#   sh benchmark.sh 10 http://google.com
#
# Output:
# Running 10 iterations for curl https://google.com
# .....
# Averaged 63.8024 ms in 10 iterations


#!/bin/sh
iterations=$1
url=$2

echo "Running $iterations iterations for curl $url"
totaltime=0.0

for run in $(seq 1 $iterations)
do
 time=$(curl $url -s -o /dev/null -w "%{time_starttransfer}\n")
 totaltime=$(echo "$totaltime" + "$time" | bc)
done

avgtimeMs=$(echo "scale=4; 1000*$totaltime/$iterations" | bc)

echo "Averaged $avgtimeMs ms in $iterations iterations"