Which is the best Opcache Operator?

[snakev]

Hello,

I own my dedicated server so i could install any Opcache Operator, which one is the best for speed and server load?.

I installed vB Optimise pro yesterday and i tested it with XCache and now with Memcached, the pages speed is very good but i don't see any difference in load, with/out vB Optimise.

I'm using vB 3.8.5 and vB Optimise: Guest Full Page Caching is in 3 minutes.

These are the memcached stats:

 

[Deceptor]

Hey snakev,

On a dedicated single server XCache might be a better choice, but honestly it makes little difference which you use (unless you can find through load times/memory usage which performs better over a timed/recorded period). As for load averages not shifting, how many users do you usually have online and what is your current load average?

If you're forum is receiving enough traffic to stress the server in anyway then vB Optimise will do little impact. An example of this can be seen here: http://www.dragonbyte-tech.com/vboptimisesites.php, notice PinStack.com had a very high period, then low, then today high again (the low period was due to a component being disabled as they help test our WinCache extension on a large platform). You'll see the raw queries saved (and with guest caching raw php is saved too) are much higher than this site and others that have opted into the chart due to activity. As such vB Optimise makes a greater impact, another way of looking at it is if with/out vB Optimise your load is fine you can technically cut costs on hardware (which a couple of customers have done as a result).

 

[snakev]

Thanks for your reply.

I have 7000 online users in peak time, with a 900 seconds timeout cookie.
The server is on acceptable numbers in load, normally it is in 8 or 10, it's a big server with 24 cores and 48 GB of RAM.

The Guest Full Caching how exactly works?, because i have near 1 millon of threads and is possible that the process of caching and update of the HTML outpot could be the problem with load.

 

[Deceptor]

Thanks for your reply.

I have 7000 online users in peak time, with a 900 seconds timeout cookie.
The server is on acceptable numbers in load, normally it is in 8 or 10, it's a big server with 24 cores and 48 GB of RAM.

The Guest Full Caching how exactly works?, because i have near 1 millon of threads and is possible that the process of caching and update of the HTML outpot could be the problem with load.

Seems like the server is more than capable of handling 7k, you should be able to push 15-20k easily with that setup Given the RAM MySQL will probably never lock-up. The full guest cache works "on-demand", so as a guest if you visit the homepage and it's not cached, it displays as normal, then that content is cached for X minutes (based on your setting), so if you reload you'll be getting the cached page served which is dont at the earliest point viable within vBulletin, which removes around 80% MySQL/PHP processing. You may find with memcache your cache size grows and grows with guest caching due to Memcache's inability to "delete" items through it's flush, this issue has been addressed in the next release however (restarting the memcached server will reset your cache size to 0).

So we don't go ahead and look-up all threads and cache them, because it would be pretty crazy