Method and system for tracking kernel resource usage
View Patent ↗A method and computer system for tracking kernel resource usage is disclosed that tracks kernel resources allocated to user processes called from the user level of the operating system. A tag of the user processes is generated, which allows a way to identify the user processes and associate allocated kernel resources to the user process. As a result, the user processes can be charged for kernel resources.
1. A method for tracking kernel resource usage comprising:
generating a tag to charge a process allocated with kernel resources wherein generating a tag further comprises:
determining whether a request for kernel resources is passed from an intermediate function using a worker thread;
finding at least one link between the worker thread and the process; and,
identifying the process that originated the request according to the found link between the worker thread and the process;
determining whether the process is a kernel process;
determining whether the process is a user process;
flagging the tag with a kernel flag to indicate whether the process has been determined to be a kernel process, the flagging further comprising:
generating a tag value to identify kernel resources allocated to a user process;
saving a type of kernel resources allocated to the tag; and,
saving a user process identifier to the tag to identify the process;
flagging the tag with a user flag to indicate whether the process has been determined to be a user process based upon the determination step wherein the tag value and the type of kernel resources are saved in a first word of the tag, and the user process identifier is saved in a second word of the tag;
determining whether the process is a first predefined process or a second predefined process;
saving an identifier to the tag to identify whether the process is a first predefined process or a second predefined process based upon the determination step;
determining whether the process has used more kernel usage than a threshold; and
if the process kernel usage is above a threshold, aborting the process.
2. The method of claim 1 wherein flagging the tag further comprises the steps of:
generating a tag value to identify the kernel resources allocated to a kernel process; and,
saving a driver identification to the tag value.
3. The method of claim 2 wherein the tag value with the driver identification is saved in a first word of the tag.
4. The method of claim 1 wherein flagging the tag further comprises:
generating a tag value to identify kernel resources allocated to a user process;
saving the tag value to a first word of the tag; and,
saving a user process identifier to identify the process to a second word of the tag.
5. A computer storage medium having computer-executable instructions to be executed by a processor for performing a method for tracking kernel resource usage comprising:
generating a tag to charge a process allocated with kernel resources wherein generating a tag further comprises:
determining whether a request for kernel resources is passed from an intermediate function using a worker thread;
finding at least one link between the worker thread and the process; and,
identifying the process that originated the request according to the found link between the worker thread and the process;
determining whether the process is a kernel process;
determining whether the process is a user process;
flagging the tag with a kernel flag to indicate whether the process has been determined to be a kernel process, the flagging further comprising:
generating a tag value to identify kernel resources allocated to a user process;
saving a type of kernel resources allocated to the tag; and,
saving a user process identifier to the tag to identify the process;
flagging the tag with a user flag to indicate whether the process has been determined to be a user process based upon the determination step wherein the tag value and the type of kernel resources are saved in a first word of the tag, and the user process identifier is saved in a second word of the tag;
determining whether the process is a first predefined process or a second predefined process;
saving an identifier to the tag to identify whether the process is a first predefined process or a second predefined process based upon the determination step;
determining whether the process has used more kernel usage than a threshold; and
if the process kernel usage is above a threshold, aborting the process.
6. The computer storage medium of claim 5 , wherein flagging the tag further comprises the steps of:
generating a tag value to identify the kernel resources allocated to a kernel process; and saving a driver identification to the tag value.
7. The computer storage medium of claim 6 , wherein the tag value with the driver identification is saved in a first word of the tag.
8. The computer storage medium of claim 7 , wherein flagging the tag further comprises of:
generating a tag value to identify kernel resources allocated to a user process;
saving the tag value to a first word of the tag; and
saving a user process identifier to identify the process to a second word of the tag.
9. The computer storage medium of claim 5 , further comprising:
saving a process identifier to identify the process allocated with the kernel resources; and
saving a type of kernel resources allocated to the process.