MT4 tester requirements

Hi guys, is there anyone who could please explain me what is the hardware bottleneck of my pc while using a few instances of MT4 strategy tester?

I'm running on Intel Xeon E5620 Processor with 12GB of RAM. I used SSD for a while but it caused some issued so I went back to standard HDD.

Unfortunately because of lack of time I didn’t have time to compare the drives, so I'm not sure if SSD gives me a big improvement. Of course it works faster, loaded system and apps faster but that's not something I care about. What I want to obtain is getting the MT4 tester results ASAP.

I realize MT4 cannot take advantage of multicore, but I'm using simultaneously a few MT4 instances each on different core.

Anyway guys, my PC starts to be really slow when a few test are running at the same time. CPU usage is lower than 50%, RAM usage is lower than 80%, resource monitor usually shows usage of HDD below 40%, what is the problem then?

My PC get so slow that it takes ages to open any app when the tests are running.

I'm not really an IT guy so the problem is that I don't get how the MT4 is using the hardware, what it really needs, and how to improve its performance.

Is there anyone who could give me some tips and explain a little bit how it works and how to solve my problem?

Thank you in advance.

So... no one knows or know one wants to help?

cookerx-
How many is a few?
Difficult to tell not knowing what indis you are running, plus there are other variables.
Add to that most people don't give much credibility to the Strategy Tester if your goal is to optimize the EA on historical data.

Hi cyber1, thanks for your answer.

A few means up to 10, usually 6. It doesn't matter if I'm using a fancy indicators, the same problem occurs while testing the EAs which are not using any inidi at all, so it would looks like the problem with reading the data from the HDD but as I mentioned before the resource monitor shows the HDD is not fully occupied.

Also if the indicators would be the problem then the CPU usage would be 100% right?
Do you know a good tool to identify the bottleneck of the PC running under windows? Maybe my readings are not correct.

Why did the SSD cause you issues? And what SSD did you use? On my system I've got an Intel Core i5 CPU with 8GB RAM and 2x 128GB SSDs (one is Crucial, the other Samsung I think), running Windows 10. I've not had any issues with MT4 and the SSD.

The easiest way to find out what's using up the CPU usage is by opening task manager and looking at the Processes tab. On Windows 10, it gives you a detailed breakdown. You might find something else is happening in the background that's slowing your system down, like anti-virus running a scan or something?

Mt4 is monocore and 32bits. You can't use more 2gb and one cpu