http_load

SITE:
http://www.acme.com/software/http_load/

http_load runs multiple http fetches in parallel, to test the throughput of a web server. However unlike most such test clients, it runs in a single process, so it doesn't bog down the client machine. It can be configured to do https fetches as well.
You give it a file containing a list of URLs that may be fetched, a flag specifying how to start connections (either by rate or by number of simulated users), and a flag specifying when to quit (either after a given number of fetches or a given elapsed time). There are also optional flags for checksums, throttling, random jitter, and progress reports.
Sample run:
% ./http_load -rate 5 -seconds 10 urls
49 fetches, 2 max parallel, 289884 bytes, in 10.0148 seconds
5916 mean bytes/connection
4.89274 fetches/sec, 28945.5 bytes/sec
msecs/connect: 28.8932 mean, 44.243 max, 24.488 min
msecs/first-response: 63.5362 mean, 81.624 max, 57.803 min
HTTP response codes:
  code 200 -- 49
See the manual entry for more details.


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