System resource component utilization

Patent metadata

Field	Value
Publication number	US-10423516-B2
Application number	US-201816121552-A
Country	US
Kind code	B2
Filing date	Sep 4, 2018
Priority date	Nov 11, 2015
Publication date	Sep 24, 2019
Grant date	Sep 24, 2019

Abstract

A computer-implemented method according to one embodiment includes receiving, by one or more processors, a set of utilization metrics for a system comprising at least an average number of concurrent requests N to the system and a maximum concurrency c that the system is capable of supporting, computing, by one or more processors, a tipping point p, computing, by one or more processors, a utilization U according to a ratio of the average number of concurrent requests N to a function, where the function is defined as: c+f(f(N/p)) for N<p, and N+1+b*f(p/N) for N≥p, where b=c−p and f(y)=y−b*y*(1−y)+0.5*b*(b−1)*y*(1−y) 2 , and adjusting, by one or more processors, the system, utilizing the utilization U.

First claim

What is claimed is:

1. A computer implemented method, comprising:
receiving, by one or more processors, a set of utilization metrics for a system comprising at least an average number of concurrent requests N to the system and a maximum concurrency c that the system supports;
computing, by one or more processors, a tipping point p;
computing, by one or more processors, a utilization U according to a ratio of the average number of concurrent requests N to a function, where the function is defined as:
c+f ( f ( N/p )) for N<p , and
N+ 1+ b*f ( p/N ) for N≥p,
where b=c−p and f(y)=y−b*y*(1−y)+0.5*b*(b−1)*y*(1−y) 2 ; and

adjusting, by one or more processors, the system, utilizing the utilization U.

2. The method of claim 1 , wherein adjusting the system, utilizing the utilization U, comprises:
identifying, by one or more processors, components of the system that exhibit a predetermined utilization; and
adjusting, by one or more processors, the system to balance the utilization U across available components.

3. The method of claim 1 , wherein the maximum concurrency c corresponds to an entire computer system.

4. The method of claim 1 , wherein the maximum concurrency c corresponds to one or more applications of interest.

5. The method of claim 1 , further comprising analyzing the utilization U to determine if the system or individual components of the system are being over-utilized.

6. The method of claim 1 , further comprising:
identifying, by one or more processors, components of the system that exhibit a high utilization, and
adjusting, by one or more processors, the system to balance the utilization across available components.

7. The method of claim 1 , wherein adjusting the system includes introducing, by one or more processors, additional components to the system to help balance a workload.

8. The method of claim 1 , further comprising computing, by one or more processors, an extended harmonic number G(c) according to an equation G(c)=2*D{H [c+1] −1/(2*[c]+2.52)}+(1−2*D)*H d , wherein D is a distance between c and a nearest integer d, H d is a d th harmonic number, and [c] denotes a greatest integer function of c.

9. The method of claim 8 , wherein the tipping point p is computed according to an equation p=c−G(c+2)+G(3)+1.6/(c+7)−9.6/(c+47).

10. The method of claim 1 , wherein the function is represented by FixP D (N).

11. The method of claim 10 , wherein the utilization U is computed according to an equation U=N/FixP D (N).

12. A computer program product for computing a system utilization, the computer program product comprising:
one or more computer readable storage media and program instructions stored on the one or more computer readable storage media, the program instructions, executable by a computer, comprising instructions to:
receive, by one or more processors, a set of utilization metrics for a system comprising at least an average number of concurrent requests N to the system and a maximum concurrency c that the system supports;
compute, by one or more processors, a tipping point p;
compute, by one or more processors, a utilization U according to a ratio of the average number of concurrent requests N to a function, where the function is defined as:
c+f ( f ( N/p )) for N<p , and
N+ 1+ b*f ( p/N ) for N≥p,
where b=c−p and f(y)=y−b*y*(1−y)+0.5*b*(b−1)*y*(1−y) 2 ; and adjust, by one or more processors, the system, utilizing the utilization U.

13. The computer program product of claim 12 , wherein adjusting the system, utilizing the utilization U, comprises:
identifying, by one or more processors, components of the system that exhibit a predetermined utilization; and
adjusting, by one or more processors, the system to balance the utilization U across available components.

14. The computer program product of claim 12 , wherein the maximum concurrency c corresponds to an entire computer system.

15. The computer program product of claim 12 , wherein the maximum concurrency c corresponds to one or more applications of interest.

16. The computer program product of claim 12 , further comprising program instructions to analyze the utilization U to determine if the system or individual components of the system are being over-utilized.

17. The computer program product of claim 12 , further comprising:
program instructions to identify, by one or more processors, components of the system that exhibit a high utilization, and
program instructions to adjust, by one or more processors, the system to balance the utilization across available components.

18. The computer program product of claim 12 , wherein adjusting the system includes introducing, by one or more processors, additional components to the system to help balance a workload.

19. The computer program product of claim 12 , further comprising program instructions to compute, by one or more processors, an extended harmonic number G(c) according to an equation G(c)=2*D{H [c+1] −1/(2*[c]+2.52)}+(1−2*D)*H d , wherein D is a distance between c and a nearest integer d, H d is a d th harmonic number, and [c] denotes a greatest integer function of c.

20. A system, comprising one or more processors for:
receiving, by the one or more processors, a set of utilization metrics for a system comprising at least an average number of concurrent requests N to the system and a maximum concurrency c that the system supports;
computing, by the one or more processors, a tipping point p;
computing, by the one or more processors, a utilization U according to a ratio of the average number of concurrent requests N to a function, where the function is defined as:
c+f ( f ( N/p )) for N<p , and
N+ 1+ b*f ( p/N ) for N≥p,
where b=c−p and f(y)=y−b*y*(1−y)+0.5*b*(b−1)*y*(1−y) 2 ; and adjusting, by one or more processors, the system, utilizing the utilization U.

Assignees

• IBM

Inventors

• Mcnutt Bruce

Classifications

• G06F11/3409

  for performance assessment · CPC title

• G06F11/3452

  Performance evaluation by statistical analysis · CPC title

• G06F11/0754

  by exceeding limits · CPC title

• G06F11/0706 Primary

  the processing taking place on a specific hardware platform or in a specific software environment · CPC title

• G06F11/3495 Primary

  for systems · CPC title