Hi I am running few websites. I have purchased big web hosting plan (4,000 GB) from a company. My sites have good traffic. I want to know below things. 1. Since I am using one hosting for all of my sites (using wordpress), will it interrupt loading time for each of the site? I mean if one site has more online users, will the other site be slower? 2. I want to see whether my site can server to many people at one time i.e. say 500 users at one time. How can I check this? Since I don't have 100+ users at a single time. Is there any way to create fake online users to site serving capacity? Thanks for the help.
4000 GB is the physical Space or Traffic? In a shared web hosting that doesn't matter - you just got a single hosting account for managing all other your websites. Please make sure how much private memory is allocated for your account. That will shared for all your websites. If one of the website consumes almost full then other websites would obviously have impact. There are stress test tools available in market which could simulate the users on your website to see the load. make sure your web host might have flood control to prevent such accidents. Confirm with your web host to see if that is possible. You may end-up suspension of account if it is not allowed.
No, the performance of one site should not hurt your others as long as long as you don't use up all of your resources. I've contact your host to get an idea of what kind of performance you can expect. I would check with your host.