Benchmarks on dedicated and VM instances, any statistics to share?

(Salman, Freelance Developer) #1

Has anyone done any benchmarks regarding requests per second on both bare metal servers and VM’s?

I’m interested to know also when performing benchmarks, are certain pages cached by default? If yes, is there a way to disable caching just to see how things perform w/o caching so all requests go through the entire rails pipeline and code base.

Ofcourse knowing the numbers with caching is also important, but I am just curious as how things will behave without cache. Actually one important thing to note is say the cache gets cleared, your server could potentially go down if it can’t handle the load w/o caching in place.

(Salman, Freelance Developer) #2

@codinghorror or @sam must have some interesting numbers to share, especially on the dedicated server side of things. Would love to hear some real life stats :slight_smile:

(Sam Saffron) #3

with xen I saw close perf (1-2% off), but no turboboost.

with kvm we saw 20% off. Of course YMMV, stuff may have change since, etc.

Perhaps you should try this, we have discourse bench, you can compare.

(Salman, Freelance Developer) #4

Thanks, but unfort. I don’t have access to a dedicated server. I did fireup a ec2 instance a long time back but was more interested in how a dedicated box performs.

Thanks the discourse bench looks interesting.