CPU hash rate falls down when GPU starts

[Zenonek]

Hello guys,
I have problem with my desktop miners. When I using only CPU for monero mining haste is 1200-1400h/s.
When Im starting other miner for gpu its fall down to 800-900h/s.
Same situation with gpu.
Gpu without cpu 1900h/s
With cpu 1700h/s.
Is it normal? If now how can I fix it?

[astraleureka]

It's normal, the GPU needs to be controlled so the CPU spends time doing other things. If there isn't enough CPU power to feed the GPU the GPU hashrate will drop too.

[slovakia]

 ... this is tutorial for fix it

task manager-propertiesi-running task-righ click-setup priority- highest 

[kimtaek]

Hello guys,
I have problem with my desktop miners. When I using only CPU for monero mining haste is 1200-1400h/s.
When Im starting other miner for gpu its fall down to 800-900h/s.
Same situation with gpu.
Gpu without cpu 1900h/s
With cpu 1700h/s.
Is it normal? If now how can I fix it?

It is normal that the hash rates will lower than the usual settings of the hardware and also the price of the BTC goes down so the price of Monero will also go down...

[shield132]

Hello guys,
I have problem with my desktop miners. When I using only CPU for monero mining haste is 1200-1400h/s.
When Im starting other miner for gpu its fall down to 800-900h/s.
Same situation with gpu.
Gpu without cpu 1900h/s
With cpu 1700h/s.
Is it normal? If now how can I fix it?

Which CPU and GPU do you use? Sincr you use your pc for mining, don't use whole CPU for it, clear up one core for backround tasks. That setting of high priority in task manager won't help, at least I have never seen any improve with that but after dedicating one core for bg tasks, try it if your GPU hashrate dropped on CPU/GPU mining.

[VasilyS]

When GPU miner is working, the power of the processor is used for the verification of shares and other purposes. Therefore, it is not necessary to load all the processor cores and its cache memory, because the hashrate of video cards that generate more revenue will suffer from this.