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## Prerequisites
-Most of the http benchmarks require [`wrk`][wrk] and [`ab`][ab] being installed.
-These are most often available through your preferred package manager.
+Most of the http benchmarks require [`wrk`][wrk] and [`ab`][ab] (ApacheBench) being installed.
+These may be available through your preferred package manager.
+
+If they are not available:
+- `wrk` may easily built [from source](https://github.com/wg/wrk) via `make`.
+- `ab` is sometimes bundled in a package called `apache2-utils`.
[wrk]: https://github.com/wg/wrk
[ab]: http://httpd.apache.org/docs/2.2/programs/ab.html