Re: PHP Performance/Scalability

Hello 1. Concurrent php requests/sec is 150. 2. Average Response Time for PHP pages is 2-3 seconds for 1500 concurrent users (150 requests/sec). If we increase the load beyond 1500 concurrent users, the response time goes up to 10 seconds for 2000+ concurrent users. We also start getting 500 errors as we increase the load beyond 2000 concurrent users. 3. For Java, the response times are in milliseconds even for 6000+ concurrent users (for the same functionality) Cheers! Deepak "The greatness of a nation can be judged by the way its animals are treated - Mahatma Gandhi" +91 73500 12833 deicool@gmail.com Facebook: https://www.facebook.com/deicool LinkedIn: www.linkedin.com/in/deicool "Plant a Tree, Go Green" Make In India : http://www.makeinindia.com/home On Tue, Oct 26, 2021 at 3:28 PM shiplu <shiplu.net@gmail.com> wrote: > Hello Deepak, > > 1500 as concurrency is very very high. It means there are 1500 *ongoing* > HTTP requests. They started and didn't finish yet at the same time. This > can only happen when your average response time is high. What is your > average response time? > > ― > Shiplu.Mokadd.im > Senior Unix Hacker > > Meeting Calendar: https://calendar.x.ai/shiplu > > *Innovation distinguishes between follower and leader* > — Steve Jobs > > > *An expert is a person who has made all the mistakes that can be made in a > very narrow field.*— Niels Bohr > > > On Tue, Oct 26, 2021 at 11:55 AM Deepak Goel <deicool@gmail.com> wrote: > >> Hello >> >> I have a very simple PHP application which I develop on >> Apache-Web-Server. However the application does not scale beyond 1500 >> concurrent users (150 requests/sec), even though there is plenty of >> hardware available (CPU is getting utilized 15%, Memory is getting utilized >> 15%). >> >> On a similar note, when I develop the same application in Java, it scales >> to more than 6000 concurrent users (600 requests/sec) on the same hardware. >> >> Any pointers on how to address this scalability issue? >> >> Thanks! >> >> Deepak >> "The greatness of a nation can be judged by the way its animals are >> treated - Mahatma Gandhi" >> >> +91 73500 12833 >> deicool@gmail.com >> >> Facebook: https://www.facebook.com/deicool >> LinkedIn: www.linkedin.com/in/deicool >> >> "Plant a Tree, Go Green" >> >> Make In India : http://www.makeinindia.com/home >> >