Method for processing cpu frequency and electronic device

An electronic device, comprising:

• one or more processors;
• and
• one or more memories, wherein the one or more processors are coupled to the one or more memories, the one or more memories are configured to store computer program code, the computer program code comprises computer instructions, and when the one or more processors execute the computer instructions, the electronic device is enabled to perform:
• running at a first CPU frequency when N tasks run in a foreground, wherein N is an integer greater than 1;
• switching M tasks in the N tasks to a background for running, wherein M is an integer greater than 0 and less than N;
• and
• running at a second CPU frequency in a mixed task running scenario in which the M tasks run in the background and N-M tasks run in the foreground, wherein the second CPU frequency is less than the first CPU frequency.

A chip system, wherein the chip system is used in an electronic device, the chip system comprises one or more processors, and the one or more processors are configured to invoke computer instructions so that the electronic device performs:

• running at a first CPU frequency when N tasks run in a foreground, wherein N is an integer greater than 1;
• switching M tasks in the N tasks to a background for running, wherein M is an integer greater than 0 and less than N;
• and
• running at a second CPU frequency in a mixed task running scenario in which the M tasks run in the background and N-M tasks run in the foreground, wherein the second CPU frequency is less than the first CPU frequency.