Method and apparatus for collecting performance data, and system for managing performance data

A performance data collection apparatus comprising one or plural processors configured to perform a procedure including:

• collecting performance data that is obtained by measuring a characteristic value of a logical processor of a processor core when the logical processor executes a process, the logical processor corresponding to a unit of execution and being provided in plurality;
• comparing the collected performance data of the plurality of logical processors with each other, forming a group of logical processors whose performance data falls within a predetermined range of approximation, selecting a representative processor of the group, and generating grouping information that indicates the logical processors of the group and the representative processor of the group in association with identification information of the group;
• and
• transmitting, to another computer, the performance data of the representative processor of the group at specified transmission intervals, and the performance data of logical processors other than the representative processor of the group at transmission intervals that are longer than the specified transmission intervals, with reference to the generated grouping information.

A computer-readable, non-transitory medium encoded with a computer program, the computer program causing a computer to perform a procedure comprising:

• collecting performance data that is obtained by measuring a characteristic value of a logical processor of a processor core when the logical processor executes a process, the logical processor corresponding to a unit of execution and being provided in plurality;
• comparing the collected performance data of the plurality of logical processors with each other, forming a group of logical processors whose performance data falls within a predetermined range of approximation, selecting a representative processor of the group, and generating grouping information that indicates the logical processors of the group and the representative processor of the group in association with identification information of the group;
• and
• transmitting, to another computer, the performance data of the representative processor of the group at specified transmission intervals, and the performance data of logical processors other than the representative processor of the group at transmission intervals that are longer than the specified transmission intervals, with reference to the generated grouping information.

A performance data management system comprising:

• a first computer configured to perform a first procedure including:
• collecting performance data that is obtained by measuring a characteristic value of a logical processor of a processor core when the logical processor executes a process, the logical processor corresponding to a unit of execution and being provided in plurality;
• comparing the collected performance data of the plurality of logical processors with each other, forming a group of logical processors whose performance data falls within a predetermined range of approximation, selecting a representative processor of the group, and generating grouping information that indicates the logical processors of the group and the representative processor of the group in association with identification information of the group;
• and
• transmitting, with reference to the generated grouping information, the performance data of the representative processor of the group at specified transmission intervals, and the performance data of logical processors other than the representative processor of the group at transmission intervals that are longer than the specified transmission intervals;
• and
• a second computer configured to perform a second procedure including:
• receiving the performance data that is transmitted from the first computer;
• receiving a read request for the performance data, identifying the representative processor of the group with reference to the grouping information when a target logical processor specified in the read request is not the representative processor of the group and a target time period specified in the read request includes a blank period during which the performance data of the target logical processor was not acquired;
• and
• reproducing the performance data of the target logical processor of the blank period by using the performance data of the identified representative processor of the group collected during the blank period.