System and method for managing system resources in a network environment

• US 7,925,748 B2
• Filed: 10/24/2008
• Issued: 04/12/2011
• Est. Priority Date: 10/24/2008
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Moribayashi, Akira
• Primary Examiner(s): Abdullahi; Salad
• Application Number:
  US12/257,483
• Publication Number:
  US 20100106818A1
• Time in Patent Office: 900 Days
• Field of Search: 709223-224, 709226-228, 709/232, 370/352
• US Class Current: 709/224
• CPC Class Codes: H04L 43/0852 Delays
• CPC Class Codes: H04L 43/106 using time related information in packets, e.g. by adding timestamps
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/826 Involving periods of time
• CPC Class Codes: H04L 47/83 based on usage prediction

Abstract

A method for managing system resources in a network environment. The method begins by reading from a first log timestamp T_i for i=1, 2, . . . , I, where each T_i comprises a timestamp corresponding to a unique request to utilize system resources. After reading timestamps, calculating estimated response E_i for i=1, 2, . . . , I, according to a function. After calculating estimated responses, the method continues by calculating actual response R_i for i=1, 2, . . . , I, according to a function R_i=E_i−T_i. After calculating all actual responses; storing each actual response in a second log. The second log comprising both timestamp T_i and actual response R_i for i=1, 2, . . . , I.

Claims

1. A method for managing system resources in a network environment, said method comprising:

reading from a first log timestamp T_i for i=1, 2, . . . , I, each said T_i comprising a timestamp corresponding to a unique request to utilize said system resources, said I corresponding to the total number of timestamps residing in said first log, said index I being a positive integer having a value greater than 1;

after said reading, calculating estimated response E_i for i=1, 2, . . . , I, according to a function E_i=max (T_x|1<

x<

i);

calculating actual response R_i for i=1, 2, . . . , I, according to a function R_i=E_i−

T_i, wherein if said R_i is equal to a negative number then R_i is changed to being equal to 0; and

storing actual response R_i for I=1, 2, . . . , I, in a second log, said second log comprising both timestamp T_i and actual response R_i for i=1, 2, . . . , I.

2. The method of claim 1, said method further comprising:

comparing a threshold value to each said actual response R_i for i=1, 2, . . . , I, said threshold value being a positive integer having a value greater than 1; and

sending a message to an output device if said comparing determines that at least one said actual response R_i has a value greater than said threshold value.

3. The method of claim 2, wherein said threshold value is both provided by an administrator and received prior to said comparing.

4. The method of claim 2, said message further comprising:

each of said at least one actual response R_i determined to have a value greater than said threshold value; and

each timestamp T_i corresponding to each said at least one actual response R_i determined to have a value greater than said threshold value.

5. The method of claim 1, wherein prior to said reading from said first log:

monitoring a network server for at least one said request to utilize said system resources;

monitoring said network server for at least one response, each response of said at least one response corresponding to a unique request of said at least one said request;

in response to having identified said at least one said request, recording a timestamp T corresponding to the time in which said at least one said request was identified; and

in response to having identified said at least one said response, storing said timestamp T in said first log.

6. A computer program product, comprising a computer readable storage device having a computer-readable program code stored therein, said computer-readable program code containing instructions that when executed by a processor of a computer system implement a method for managing system resources in a network environment, said method comprising:

reading from a first log timestamp T_i for i=1, 2, . . . , I, each said T_i comprising a timestamp corresponding to a unique request to utilize said system resources, said I corresponding to the total number of timestamps residing in said first log, said index I being a positive integer having a value greater than 1;

after said reading, calculating estimated response E_i for i=1, 2, . . . , I, according to a function E_i=max (T_x|1<

x<

i);

calculating actual response R_i for i=1, 2, . . . , I, according to a function R_i=E_i−

T_i, wherein if said R_i is equal to a negative number then R_i is changed to being equal to 0; and

storing actual response R_i for I=1, 2, . . . , I, in a second log, said second log comprising both timestamp T_i and actual response R_i for i=1, 2, . . . , I.

7. The computer program product of claim 6, said method further comprising:

comparing a threshold value to each said actual response R_i for i=1, 2, . . . , I, said threshold value being a positive integer having a value greater than 1; and

sending a message to an output device if said comparing determines that at least one said actual response R_i has a value greater than said threshold value.

8. The computer program product of claim 7, wherein said threshold value is both provided by an administrator and received prior to said comparing.

9. The computer program product of claim 7, said message further comprising:

each of said at least one actual response R_i determined to have a value greater than said threshold value; and

each timestamp T_i corresponding to each said at least one actual response R_i determined to have a value greater than said threshold value.

10. The computer program product of claim 6, wherein prior to said reading from said first log:

monitoring a network server for at least one said request to utilize said system resources;

monitoring said network server for at least one response, each response of said at least one response corresponding to a unique request of said at least one said request;

in response to having identified said at least one said request, recording a timestamp T corresponding to the time in which said at least one said request was identified; and

in response to having identified said at least one said response, storing said timestamp T in said first log.

11. A computing system comprising a processor coupled to a computer-readable memory unit, said memory unit comprising a software application, said software application comprising instruction that when executed by said processor, implement a method for managing system resources in a network environment, said method comprising:

reading from a first log timestamp T_i for i=1, 2, . . . , I, each said T_i comprising a timestamp corresponding to a unique request to utilize said system resources, said I corresponding to the total number of timestamps residing in said first log, said index I being a positive integer having a value greater than 1;

after said reading, calculating estimated response E_i for i=1, 2, . . . , I, according to a function E_i=max (T_x|1<

x<

i);

calculating actual response R_i for i=1, 2, . . . , I, according to a function R_i=E_i−

T_i, wherein if said R_i is equal to a negative number then R_i is changed to being equal to 0; and

storing actual response R_i for I=1, 2, . . . , I, in a second log, said second log comprising both timestamp T_i and actual response R_i for i=1, 2, . . . , I.

12. The computing system of claim 11, said method further comprising:

comparing a threshold value to each said actual response R_i for i=1, 2, . . . , I, said threshold value being a positive integer having a value greater than 1; and

sending a message to an output device if said comparing determines that at least one said actual response R_i has a value greater than said threshold value.

13. The computing system of claim 12, wherein said threshold value is both provided by an administrator and received prior to said comparing.

14. The computing system of claim 12, said message further comprising:

each of said at least one actual response R_i determined to have a value greater than said threshold value; and

each timestamp T_i corresponding to each said at least one actual response R_i determined to have a value greater than said threshold value.

15. The computing system of claim 11, wherein prior to said reading from said first log:

monitoring a network server for at least one said request to utilize said system resources;

monitoring said network server for at least one response, each response of said at least one response corresponding to a unique request of said at least one said request;

in response to having identified said at least one said request, recording a timestamp T corresponding to the time in which said at least one said request was identified; and

in response to having identified said at least one said response, storing said timestamp T in said first log.

16. A process for supporting computer infrastructure, said process comprising providing at least one support service for at least one of creating, integrating, hosting, maintaining, and deploying computer-readable code in a computing system, wherein said code in combination with the computing system is capable of implementing a method for managing system resources in a network environment, said method comprising:

reading from a first log timestamp T_i for i=1, 2, . . . , I, each said T_i comprising a timestamp corresponding to a unique request to utilize said system resources, said I corresponding to the total number of timestamps residing in said first log, said index I being a positive integer having a value greater than 1;

after said reading, calculating estimated response E_i for i=1, 2, . . . , I, according to a function E_i=max (T_x|1<

x<

i);

calculating actual response R_i for i=1, 2, . . . , I, according to a function R_i=E_i−

T_i, wherein if said R_i is equal to a negative number then R_i is changed to being equal to 0; and

storing actual response R_i for I=1, 2, . . . , I, in a second log, said second log comprising both timestamp T_i and actual response R_i for i=1, 2, . . . , I.

17. The process for supporting computer infrastructure of claim 16, said method further comprising:

comparing a threshold value to each said actual response R_i for i=1, 2, . . . , I, said threshold value being a positive integer having a value greater than 1; and

sending a message to an output device if said comparing determines that at least one said actual response R_i has a value greater than said threshold value.

18. The process for supporting computer infrastructure of claim 17, wherein said threshold value is both provided by an administrator and received prior to said comparing.

19. The process for supporting computer infrastructure of claim 17, said message further comprising:

each of said at least one actual response R_i determined to have a value greater than said threshold value; and

each timestamp T_i corresponding to each said at least one actual response R_i determined to have a value greater than said threshold value.

20. The process for supporting computer infrastructure of claim 16, wherein prior to said reading from said first log:

monitoring a network server for at least one said request to utilize said system resources;

monitoring said network server for at least one response, each response of said at least one response corresponding to a unique request of said at least one said request;

in response to having identified said at least one said request, recording a timestamp T corresponding to the time in which said at least one said request was identified; and

in response to having identified said at least one said response, storing said timestamp T in said first log.