How much RAM to accommodate 500 users online all the time?

Gmeister4

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#1
Hello,

How much RAM is required for hosting a website which can accommodate 500 users online all the time?

I am consider a VPS or a dedicated server
RAM: 6GB or 8 GB?
Bandwidth: 5000GB
Website type: php based site site. Nicek are funny pictures and stories

Maximum visitor at a time if I promote on ad networks or social networks: 600 to 900

Thanks.
 

VirtuBox

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#2
Hello Gmeister4,
There are many parameter I have to know to answer :

1) What type of php site ? WordPress, another CMS, custom ?

2) More request by users to browse on the site, or more bandwith with assets delivery ?

3) What do you want to use ? A control panel or a light web server ?
 

Marc A

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#3
Yes, I would agree with leto12. We need what your website/ideas are.
 

macklong

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#4
If 500 users online all the time I suggest you to use 4GB RAM with a dedicated server - minimum.

Why? because a dedicated server serves only you and the 4GB RAM also helps you to update your site if you need it any time.

8GB or 16GB server will be over kill. But if you are using CLOUD HOSTING or VPS then you need it. Now you decide where you should go!

Thanks
 
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#5
I would like to recommend you to go with minimum 8G RAM and upgrade it, if you face any high resource usage issue and make sure that you are using higher E3 or E5 processor
 

Gmeister4

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#6
Hello Gmeister4,
There are many parameter I have to know to answer :

1) What type of php site ? WordPress, another CMS, custom ?

2) More request by users to browse on the site, or more bandwith with assets delivery ?

3) What do you want to use ? A control panel or a light web server ?
Some custom sites and wordpress sites. Of course I want to use cPanel, I am familiar to this hosting panel.

If 500 users online all the time I suggest you to use 4GB RAM with a dedicated server - minimum.

Why? because a dedicated server serves only you and the 4GB RAM also helps you to update your site if you need it any time.

8GB or 16GB server will be over kill. But if you are using CLOUD HOSTING or VPS then you need it. Now you decide where you should go!

Thanks
I have not seen any dedicated server with 4GB of RAM.

You mean If I use a cloud hosting then I need 8GB or 16GB

I would like to recommend you to go with minimum 8G RAM and upgrade it, if you face any high resource usage issue and make sure that you are using higher E3 or E5 processor
Good advice!

what is exact GHz for E3 or E5 processor?
 

RDO Servers

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#10
E3, or even a older L5420 processor would be fine for you. What you need the most is RAM.

Think about it:

If you have a super fast processor and a moderate amount of ram, your processor will be able to process a lot of requests as they come in.
However, the server still depends on having a adequate amount of RAM for php & MySQL to function properly.

How, if you have a lower end processor, but 8-16Gb of Ram, you can store most of your content in Cache/Ram. As requests come in, your server can serve the content from cache so reprocessing is not necessary. (Cache is ALWAYS faster then reprocessing info, which relies on CPU, disk IO, etc)
 

Luxin Host

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#11
hi @Gmeister4
I would say 8GB RAM should be more than enough if you go for a stable and reliable hosting provider. As was mentioned above 16GB is over kill.

Also please consider if your wordpress theme gets messed up with php 7 you may face slower load times than you would with php 7.
As RDO mentioned also deeply look into integrate good caching system as that can heavily boost your website response time.

Regards
Luxin
 
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#12
For 500 user 4GB or more if site without "crazy code"
I recommended servers configuration nginx apache and fast hard drive
 

bknights

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#14
For 500 user 4GB or more if site without "crazy code"
I recommended servers configuration nginx apache and fast hard drive
if its heavy website then 4GB RAM, plus caching could be a little short of the RAM he needs.
Why everyone always recommend nginx and caching for server, do they really help to decrease loadings for webpages or hosting?
 
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#16
You should end up choosing a mid-point between all the recommendations here, 6GB should do the work since 4GB is just enough for 500 users, but just in case this number increases you don't have to add new memory to your servers.

Cheers
 
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