Memory management of data processing systems
Techniques for memory management of a data processing system are described herein. According to one embodiment, a memory usage monitor executed by a processor of a data processing system monitors memory usages of groups of programs running within a memory of the data processing system. In response to determining that a first memory usage of a first group of the programs exceeds a first predetermined threshold, a user level reboot is performed in which one or more applications running within a user space of an operating system of the data processing system are terminated and relaunched. In response to determining that a second memory usage of a second group of the programs exceeds a second predetermined threshold, a system level reboot is performed in which one or more system components running within a kernel space of the operating system are terminated and relaunched.
1. A non-transitory machine-readable medium having instructions stored therein, which when executed by a data processing system, cause the data processing system to perform a method for memory management, the method comprising:
monitoring, by a state monitor executed by a data processing system, an operating state of a program;
in response to determining that the program transitions from an inactive state into an active state, tracking a period of time during which the program remains active; and
in response to determining that the time period exceeds a predetermined threshold that is associated with the program, performing a predetermined memory usage reduction action associated with the program,
wherein when the program is active, the program maintains an inter-process call (IPC) transaction with a kernel component of an operating system.
2. The non-transitory machine-readable medium of claim 1 , wherein performing a predetermined memory usage reduction action comprises forcing the program to transition from the active state to the inactive state.
3. The non-transitory machine-readable medium of claim 1 , wherein the method further comprises:
monitoring activities of the program while the program is active; and
in response to detecting a predetermined event performed by the program, resetting a counter recording the time period to a predetermined level.
4. The non-transitory machine readable medium of claim 1 , wherein the program, in the inactive state, operates and uses memory.
5. The non-transitory machine readable medium of claim 4 , wherein the program transitions in response to a predetermined type of transaction performed by the program.
6. The non-transitory machine readable medium of claim 5 , wherein the predetermined type of transaction is an inter-process call initiated by the program.
7. The non-transitory machine readable medium of claim 6 , wherein the inter-process call is a call to a component of an operating system.
8. The non-transitory machine readable medium of claim 6 , wherein the predetermined memory usage reduction action comprises forcing the program to transition from the active state to the inactive state.
9. The non-transitory machine readable medium of claim 1 , wherein the program in the inactive state operates with less memory than when the program is in the active state.
10. A computer-implemented method for memory management, the method comprising:
monitoring, by a state monitor executed by a data processing system, an operating state of a program;
in response to determining that the program transitions from an inactive state into an active state, tracking a period of time during which the program remains active; and
in response to determining that the time period exceeds a predetermined threshold that is associated with the program, performing a predetermined memory usage reduction action associated with the program
wherein when the program is active, the program maintains an inter-process call (IPC) transaction with a kernel component of an operating system.
11. The method of claim 10 , wherein performing a predetermined memory usage reduction action comprises forcing the program to transition from the active state to the inactive state.
12. The method of claim 10 , further comprising:
monitoring activities of the program while the program is active; and in response to detecting a predetermined event performed by the program, resetting a counter recording the time period to a predetermined level.
13. The method of claim 10 , wherein the program, in the inactive state, operates and uses memory.
14. The method of claim 13 , wherein the transition occurs in response to a predetermined type of transaction performed by the program.
15. The method of claim 14 , wherein the predetermined type of transaction is an interprocess call initiated by the program.
16. The method of claim 15 , wherein the inter-process call is a call to a component of an operating system.
17. The method of claim 15 , wherein the predetermined memory usage reduction action comprises forcing the program to transition from the active state to the inactive state.
18. The method of claim 10 , wherein the program in the inactive state operates with less memory than when the program is in the active state.