Monero- What would happen if I run two CPU miners at once

[Shova]

I'm mining monero with my CPU.
I tried xmr-stack-cpu and xmrig miners.
Xmr-stack gives a slightly better hash but still my CPU is quite and my PC fast.
So, what if  I ran both at once? Will they share my CPU alternately or will they parallely use my CPU?

On, doing so, I think I'm getting better hashes, but not sure yet, need to try for some period.

[blevotron]

Nothing bad, for sure. They will share your cpu, and mine... Total mining speed will be little slower rather then running 1 miner, so generally it's not a good idea

[BlomBaster]

Honestly, I did not try to run two miners at the same time. But the logic suggests that there will be no profit from this.

[Ambros]

This approach sometimes leads to better performance with low optimised version of GPU miners. Where resources are not used, so that more program can run almost indipendently.

This does not work when your current CPU miner is using your processor or it's caches at full capacity. Running more than one would just decrease performance. Even though It's not easy to estimate the performance decrease.

That being said, you cannot harm any component doing this. So If you have doubts and do not trust us, it's worth a try.

[Shova]

After mining in same pool than different, what I realized is my total hashrate is not greater than while mining with one.
What I missed is it's not just the CPU usage that determines the hash. There seems to be other factors.
Whether my CPU use is 40% or 70%, my hash-rate are same.