Speed up indicator and EA calculations

Hi all,

Lately I figured a big discrepancy in my model vs actual performance, due to my VPS running slow.
I suppose too many instances of MT4 are overloading the VPS, handling transformation of incoming data + custom Renko + indicators calculations.

I've also noticed that MT4 warns me with the message "xxx indicator is too slow(i.e "5000ms") please rewrite the indicator"

After looking around for solutions I am considering the following options:

- Modifying the 3 indicators I use per EA to calculate only on WindowBarPerChart()
- Tell my Renko block builder to only build on the last "x" tick data and not look back too far

Given that my indicators cannot calculate on Close only but need to recalculate on every tick, what would you advise?

Thanks

For the same reasons I am using 5 dedicated servers + 1 VPS. The dedicated servers are with 12, 16 and 24 CPU cores. All with 32 or 48 GB of RAM. I do set an affinity for each terminal. One CPU core per terminal. I also do set the affinity for all other programs to just one CPU core and the servers are... flying. Sort of.

Here are two links that might work for you:

Simple tips to reduce MT4 memory use

Improve MT4 Trade Copier speed on multi-core CPU machines

Also, the developer I am working with, mentioned something about arrays. All my EAs are now with improved performance, many, many, many, many, many times faster than what they were performing previously. Due to those arrays in the memory.

I am just a plain stupid and I do not have a clue what the arrays are, but if you understand arrays, you might want to research it deeper.

Hi MoneyZilla!

Thank you for you reply I really appreciate.
That's basically what I was on the verge of doing, however as I am mostly in a forward testing phase the cost efficiency of the whole rig would basically be negative.
How high are your expenses server related all together if not too personnal?
(PS: I can remember Ronald Raygun saying he was spending 50k a month on his server bay and maintenance haha)

You will need to look very closely at your indicators and streamline as much as possible. There will be code that can be optimised and even eliminated, so check carefully as most code grows with error fixes and work arounds.

Another simple solution might be to skip every second tick and so lessen the load on the CPU. You might find that rather than using ticks, use the OnTimer function instead and so call your calcs every few seconds rather than every tick.

I run a web hosting business with my brother. We have plenty of servers we have to replace and they must be scrapped. I take the scrapped ones! And they are FLYING! No VPS, money can buy, is coming closer to their performance. I do keep two VPSes. One with eUKhost (£65/month) and one with SWVPS (£50/month). Just to compare the commercial VPSes to my scrap dedicated servers. The VPSes are SLOW. VERY VERY SLOW. Complete crap, I would say. Worthless.

I do know why exactly the commercial VPSes are so badly performing. Because the hosting companies just oversell them. Too many clients on the physical machine...