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😀 Use Apache Bench to benchmark your HTTP requests


ab is a tool to benchmark your HTTP server capability. It tells you how many HTTP requests your server can handle per second as well as providing you some useful benchmarking metrics.

ab -n 10000 -c 100

ab is by default installed on your mac. But on a Mac it would freeze at some numbers when doing load testing. The reason is Mac is running out of sockets and the socket cannot be reused for another 15 seconds.

Once you pass -k flag (HTTP Keep-Alive header) the problem would go away.

ab -k -n 10000 -c 100

An output looks like this:

You can also use it to benchmark a post request like the following:

ab -k -p post.txt -T application/json -H ‘Authorization: Token abcd1234’ -c 1000 -n 20000

-H specifies the request header

post.txt is like this:

{"userId":"59dc2bf534b4eba2207a1145", "targetId":"59dd5d870d28f0e62c015bb6", "image":"hey" }


01 Sep 2017