apache spark performance tuning

Performance Comparison Between Nginx + PHP and Apache + PHP The test tool http_load has the same dynamic page for testing. With the same hardware resources, nginx + php has worse performance than apache + php and has the same concurrency and number of requests, in addition, if the request pressure is greater than the

See the recommendations of http://blog.phusion.nl/2013/03/12/tuning-phusion-passengers-concurrency-settings/ , It is intended to test the performance improvement of the passenger using the worker mpm.Experiment Settings:Subjects: Web service written by railsLab Tools: http://gatling.io/-based performance test code written by yourself in ScalaTwo experimental grou

Brief introductionStress testing is an essential part of the performance tuning process. It is only when the server is under high pressure that it can truly reflect the problems exposed by the various settings.Performance testing tools are now most commonly found in the following categories: AB, Http_load, Webbench, siege.AB's Principle?? The AB command creates multiple concurrent access threads, simulating