How are security and performance related to each other?

Today a lot of monitor vendors are on the market, most of the time they focus on a particular area, for example, APM (Application Performance Monitoring) or Infrastructure monitoring. Is this enough to detect and fix all problems?

Now our landscape is changing rapidly. In the past, we had to deal with one system. Today we are dealing with many systems in different locations. For example, your own data center called on-premise. Next, we have on-premise and for example AWS, and now we get on-premise and AWS and Azure and it doesn't stop. Now hackers have more locations and a better chance to find a weak spot in the chain, also if performance slows down, where is the problem. 

Because of this, you need many different monitoring tools also they don't monitor your application or OS parameter settings. For example, I have a webserver and it has a parameter to set the number of concurrent users to 30, a monitor tool will probably tell you more memory is required, you ad more expensive memory and you get the same result more memory, while the real solution is to adjust those parameter settings. 

We had several applications running for years while the total number of end users is rapidly growing, now most people don't adjust the parameters because they are not aware of they exist and the right value. 

How are performance and security related to each other, if they compromise systems as well you will see unusual behavior in performance? For example, a performance drop and more CPU will be allocated. For this, you need monitors capable of looking holistic to the complete environment, checking parameter settings and alert on unusual behavior also look for one single dashboard to check your environment including the cloud. Don't look at a sexy dashboard but more important a functional dashboard. Important is the tool capable and give it advise on what to do or is it to tell you there is a problem in the database but it doesn't tell you the buffer setting on DB xxx needs to be adjusted from 2400 Mb to 4800 MB

If we have the right settings, performance will increase and better performance is more transactions. More transactions mean more selling and more business.