http_load:add page (#3914)

pages/linux/http_load.md

@@ -0,0 +1,21 @@
+# http_load
+
+> A HTTP benchmarking tool.
+> Runs multiple HTTP fetches in parallel to test the throughput of a web server.
+> More information: <http://www.acme.com/software/http_load/>.
+
+- Emulate 20 requests based on a given URL list file per second for 60 seconds:
+
+`http_load -rate {{20}} -seconds {{60}} {{path/to/urls.txt}}`
+
+- Emulate 5 concurrent requests based on a given URL list file for 60 seconds:
+
+`http_load -parallel {{5}} -seconds {{60}} {{path/to/urls.txt}}`
+
+- Emulate 1000 requests at 20 requests per second, based on a given URL list file:
+
+`http_load -rate {{20}} -fetches {{1000}} {{path/to/urls.txt}}`
+
+- Emulate 1000 requests at 5 concurrent requests at a time, based on a given URL list file:
+
+`http_load -parallel {{5}} -fetches {{1000}} {{path/to/urls.txt}}`