Global optimization method based on maintenance charge and for two-tier software aging phenomenon

A technology for software aging and maintenance costs, applied in the field of global optimization based on maintenance costs, can solve problems such as system unavailability

Active Publication Date: 2015-04-22
HARBIN ENG UNIV
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Problems solved by technology

However, they seldom conduct research on the aging of two-tier software. However, the availability of the entire system is not only related to the availability of ...

Method used

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  • Global optimization method based on maintenance charge and for two-tier software aging phenomenon
  • Global optimization method based on maintenance charge and for two-tier software aging phenomenon
  • Global optimization method based on maintenance charge and for two-tier software aging phenomenon

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Experimental program
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Embodiment Construction

[0047] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0048] The present invention uses the analysis model of the system software update process and the accelerated test theory to test the life data of the two-layer software under accelerated conditions, and derives the availability probability distribution of the two-layer aging affected by the software aging phenomenon under normal levels, thereby obtaining The availability of the system is based on minimizing maintenance costs. This purpose can be achieved in the following steps, as figure 1 Shown:

[0049] Step 1: Build a two-layer software aging analysis model based on the update process. The software update process refers to reinitializing the internal state of the software and releasing the occupied memory resources.

[0050] Step 2: Define the threshold level of the system state.

[0051] Step 3: Analyze system availability. System availability refe...

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Abstract

The invention discloses a global optimization method based on the maintenance charge and for a two-tier software aging phenomenon. The method includes the following steps that the consumed memory Xi of an application tier within the time interval and the consumed memory Yi of an operation system tier within the time interval are monitored by a monitor; a two-tier software aging analysis model is built based on the updating process; the optimum value of an alarm threshold value of the operation system tier, the optimum value of the fatigue threshold value of the operation system tier and the optimum value of the alarm threshold value of the application tier are obtained according to the two-tier software aging analysis model; and the available maximum value of a two-tier software system is obtained. By means of the method, the overall availability can be improved effectively for a regeneration strategy method of the two-tier software.

Description

technical field [0001] The invention belongs to the field of software performance testing, and in particular relates to a maintenance cost-based global optimization method aimed at two-layer software aging phenomenon which can minimize maintenance cost. Background technique [0002] Software aging is a phenomenon in which software performance gradually declines due to the consumption of computer resources when the software is running for a long time. The possible consequences of this phenomenon are serious. It not only affects the operation of ordinary server software, but also may affect software used in key areas that require high reliability, such as business, finance, technology, and military. In a software environment with extremely high performance requirements, software aging may even cause personal injury or even reputation loss. In response to this phenomenon, scholars have proposed a method called "Software Rejuvenation", that is, by periodically restarting the se...

Claims

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Application Information

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IPC IPC(8): G06F11/36
Inventor 赵靖王延斌刘耀莉宁高容蔡开元
Owner HARBIN ENG UNIV
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