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= rails_analyzer_tools Tools for analyzing the performance of web sites. Rails Analyzer Tools contains Bench, a simple web page benchmarker, Crawler, a tool for beating up on web sites, RailsStat, a tool for monitoring Rails web sites, and IOTail, a tail(1) method for Ruby IOs. http://seattlerb.rubyforge.org/rails_analyzer_tools Bug reports: http://rubyforge.org/tracker/?func=add&group_id=1513&atid=5921 == Bench Bench lets you benchmark the performance of a particular page. Simply give the URL, the number of requests to run and the number of threads to run in parallel. You really, really, really don't want to run bench against a live website. $ bench -u http://coop.robotcoop.com/ -r 50 -c 2 50....45....40....35....30....25....20....15....10....5.... Total time: 10.7073893547058 Average time: 0.214147787094116 == Crawler Crawler lets you exercise a server by crawling it really fast. It picks URLs at random from the returned page and always stays on the same host. When you kill it with a ^C it prints out a summary. You really, really, really don't want to run crawl against a live website. $ crawl -u http://coop.robotcoop.com/ -c 2 >>> http://coop.robotcoop.com/ GET / HTTP/1.0 Host: coop.robotcoop.com User-Agent: RubyCrawl ... ^C Total time: 0.355171680450439 Requests: 3 Average time: 0.118390560150146 == RailsStat RailsStat displays the approximate number of requests, queries, and lines logged per second in 10 (or whatever) second intervals. Simply give it the path to your production log for a live Rails site and you're done: $ rails_stat /var/log/production.log ~ 2.1 req/sec, 23.0 queries/sec, 32.8 lines/sec == IOTail IOTail tails a file like the tail system utility. This lets you collect data from a live log file.
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