Why Launching More Than 2 Avds Works Only Under Specific Conditions

I came across weird problem that I dont fully understand. I try to start more than 2 AVD from terminal. It works even for 4 AVDs but only on special conditions. There is a code I

Solution 1:

Problem is related to memory allowance set to HAXM. My HAXM RAM usage by default was 2gb. After reinstalling HAXM

https://software.intel.com/en-us/android/articles/intel-hardware-accelerated-execution-manager

and assigning 6gb of memory to it, I am able to start 4 AVDs in sequence.

My guess why it worked before was: because all AVDs were started at once - in the same moment, all of them passed memory limit check and because of that they were allowed to run.