Method for measuring quantity of usage of CPU
View Patent ↗The present invention relates to a method for measuring a quantity of usage of a CPU, in particular to a method for measuring a quantity of usage of a CPU which is capable of getting a credible quantity of usage of a CPU without amending an algorithm in order to adapt it to the an operating system, e.g., MS-Windows System, or requiring a complicated code. The method uses various algorithms provided by the operating system on the behalf of a registry storing a quantity of usage of a CPU inside a system. Accordingly the present invention can measure a quantity of usage of a CPU easily without lowering a performance of the operating system.
1. A method for measuring processing resource utilization in a personal computer, comprising:
providing an operating system registry containing a processor usage information of a processor in a computer system;
reading execution times of threads during a predetermined timer time interval using one or more manager functions, wherein the threads are executed by the processor;
adding execution time values for each thread that is not a system thread to get a first total;
determining a quantity of usage of the processor using the first total; and
updating the processor usage information in the operating system registry.
2. A method for measuring processing resource utilization in a personal computer, comprising:
providing a personal computer executable process algorithm for monitoring the usage of a processor;
reading execution times of threads during a predetermined timer time interval using one or more manager functions, wherein the threads are executed by the processor;
adding execution time values for each thread that is not a system thread to get a first total; and
determining a quantity of usage of the processor using the first total, wherein the quantity of usage is used by the personal computer.
3. A method for measuring CPU usage, the CPU executing threads, comprising:
reading the execution times of all threads except for a system thread during a prescribed timer time interval;
adding the values of the execution times to obtain a first sum;
subtracting a second sum of previously executed and stored thread execution times from the first sum to obtain a result; and
calculating a CPU usage by dividing the result by the prescribed timer time interval, wherein the CPU usage is stored in a memory.
4. A method for updating a resource utilization value in an updatable usage value register contained in a processing resource circuit, comprising:
reading execution times of a first subset of threads executing during a time interval, the first subset excluding system threads;
adding the read execution times of the first subset of threads to obtain a first total;
calculating a current resource utilization information based on a calculation involving the first total and the time interval; and
updating the updatable usage value register with the current resource utilization information.
5. An article including a machine-readable storage medium containing instructions, said instructions, when executed, cause a personal computer to:
provide an operating system registry containing a processor usage information of a processor;
read execution times of threads during a predetermined timer time interval using one or more manager functions when the threads are executed by the processor;
add execution time values for each thread that is not a system thread to get a first total;
determine a quantity of usage of the processor using the first total; and
update the processor usage information in the operating system registry.
6. An article including a machine-readable storage medium containing instructions, said instructions, when executed, cause a personal computer to:
provide a personal computer executable process algorithm to monitor the usage of a processor;
read execution times of threads during a predetermined timer time interval using one or more manager functions when the threads are executed by the processor;
add execution time values for each thread that is not a system thread to get a first total;
determine a quantity of usage of the processor using the first total; and
store the quantity of usage of the processor in the personal computer.
7. An article including a machine-readable storage medium containing instructions, said instructions, when executed, cause a computer system to:
read the execution times of all threads except for a system thread during a prescribed timer time interval;
add the values of the execution times to obtain a first sum;
subtract a second sum of previously executed and stored thread execution times from the first sum to obtain a result; and
calculate a CPU usage by dividing the result by the prescribed timer time interval; and
use the CPU usage in the computer system.