System and method for managing operating systems

• US 20030079205A1
• Filed: 07/05/2002
• Published: 04/24/2003
• Est. Priority Date: 10/22/2001
• Status: Abandoned Application

• Current Assignee: Hirokazu Kasashima, Hiroshi Ohno, Masahiko Saito, Tadashi Kamiwaki, Takeshi Miyao, Taro Inoue, Tomoaki Nakamura
• Original Assignee: Hirokazu Kasashima, Hiroshi Ohno, Masahiko Saito, Tadashi Kamiwaki, Takeshi Miyao, Taro Inoue, Tomoaki Nakamura
• Inventors: Ohno, Hiroshi, Nakamura, Tomoaki, Saito, Masahiko, Kamiwaki, Tadashi, Inoue, Taro, Kasashima, Hirokazu, Miyao, Takeshi
• Application Number:
  US10/189,181
• Publication Number:
  US 20030079205A1
• Time in Patent Office: Days
• US Class Current: 717/128
• CPC Class Codes: G06F 11/323 Visualisation of programs or trace data
• CPC Class Codes: G06F 11/3636 by tracing the execution of the program
• CPC Class Codes: G06F 9/45533 Hypervisors; Virtual machine monitors

Abstract

If a plurality of operating systems are running in one computer and each of those operating systems has its own managed time, which is different from others, then trace log information items collected by those operating systems and merged in order of their generated times may not be as they are generated actually. In order to avoid such a problem, therefore, the present invention provides an operating system management system with recording means for storing a check point trace in the operation trace information of each of those operating systems, thereby finding the correspondence among those check point traces by searching the operation trace information item of each operating system, then adding such additional information as a time difference, a counter value, etc. to the operation trace information. Thus, even when each operating system has its own managed time different from others, it is possible to manage the sequence of events recorded in those operating systems correctly, thereby finding the sequence in which the trace information items of those operating systems are actually generated.

Claims

1. An operating system management method for managing a plurality of operating systems, comprising the steps of:

enabling each of a plurality of said operating systems to record its operation information item corresponded to operation information items of other operating systems and to be assumed as a reference of operation information items of those other operating systems, regarded to have been generated approximately at the same time;

finding the correspondence of an operation information item to be assumed as a reference of said approximately same times from operation information items recorded by said other operating systems; and

finding a sequence of operation information items recorded by said other operating systems according to said found correspondence.

2. An operating system management method for managing a plurality of operating systems, comprising the steps of:

enabling each of a plurality of said operating systems to record its operation information item corresponded to operation information items of said other operating systems and to be assumed as a reference of said other operation information items regarded to have been generated approximately at the same time with reference to a counter value to be updated when an operation information item of said operating system is recorded; and

finding a sequence of recorded operation information items in order they are generated with use of a size of said counter value added to said operation information of each of a plurality of said operating systems.

3. An operating system management method comprising the steps of:

recording operative information connected with the operative circumstances of another operating system;

acquiring from said recorded operative information operative information which becomes a reference for time; and

performing operating management on the basis of said acquired information.