See the httperf man page for more on that. With this approach, CPU scheduling is trivial for the OS which mini-mizes the risk of excessive context switching and are you sure you are not running out of file descriptors? [[email protected] ~]$ httperf --server 192.168.1.10 --port 80 --uri /index.html --rate 300 --num-conn 30000 --num-call 1 --timeout 5. The --ssl option does what it says on the tin--you can use that to test HTTPS performance rather than HTTP. To obtain a: meaningful standard deviation, it is recommended to run tests long: enough so at least thirty samples are obtained. This flag should probably be omitted if generating load on the same box your application is running on. hi Jordi if it's repeatable, that's good. GitHub Gist: instantly share code, notes, and snippets. For example, httperf is designed to runasasingle-threaded processusingnon-blocking I/O to communicate with the server and with one process per client machine. Reply status: This shows the status code of the reply that httperf got from the server. $ httperf --server www.example.com --uri /index.php --print-request --print-reply -d10 If you see non-200 HTTP responses, like this 301 example response below, then you need to ensure you have the correct –uri parameter: This tells httperf to use as many TCP connections as possible, thus avoiding bottlenecks. The focus of httperf is not on implementing one particular benchmark but on providing a robust, high-performance tool that facilitates the construction of both micro- and macro-level benchmarks. how many file descriptors does httperf have access to? Caveat: this option is currently supported for session workloads only (see the−−wsessand−−wsesslog This shows the reply size in bytes. httperf(1) httperf(1) NAME httperf − HTTP performance measurement tool ... For example, with ‘‘−−failure−status=504’’ responses with an HTTP status of ‘‘504 GatewayTime−out’’would be considered failures. This corresponds to a: test duration of at least 150 seconds. The --timeout option also should be obvious--it tells httperf how long to wait for a server response. B httperf: collects a rate sample once every five seconds. Reply Time: This shows the time taken by the web server to respond to the request, and the time taken to receive this reply. httperf is a tool for measuring web server performance.It provides a flexible facility for generating various HTTP workloads and for measuring server performance. My problem is the same as this question and this question I basicly want trying to run httperf with 10000 connection in parallel like this [httperf --uri / --server 192.168.1.2 --port 8080 --num-... c benchmarking ubuntu-14.04 httperf c10k While my examples don't include this, using the "--hog" flag when running httperf on a host dedicated to generating load is a very good idea. Reply Size: This is similar to the request size. Install httperf from source on CentOS 6. 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