JPH0520133A - Data collecting system - Google Patents

Abstract

PURPOSE:To efficiently collect trace data by a small storage capacity by providing a secondary storage circuit. CONSTITUTION:A control circuit 4 outputs transmitting data to a transmitting buffer 5, and inputs receiving data stored in a receiving buffer 6. Also, whenever, transmission and reception are executed, trace data is written in a primary storage circuit 1. A selecting circuit 2 inputs the trace data from the primary storage circuit 1, selects the trace data in accordance with a selecting condition given from the control circuit 4, and stores it in a secondary storage circuit 3. In the case of transmitting and receiving data in multiple to and from plural terminal equipments through a transmission line 20 connected to a communication controller, a selecting condition is given so that to the primary storage circuit 1, the trace data is written whenever transmission and reception are executed, and to the selecting circuit 2, only transmission and reception related to a certain specific terminal equipment are selected. Based on the given selecting condition, the selecting circuit 2 fetches only the trace data related to the specific terminal equipment from the primary storage circuit, and writes it in the secondary storage circuit 3.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a data collection system,
In particular, it relates to a data collection method for collecting trace data that traces an event that occurs in the device.

[0002]

2. Description of the Related Art In the conventional data collecting method, the state of an event occurring in the device or the state changed by an external factor is stored in one memory circuit in the order of occurrence of the event, and the memory area of the memory circuit becomes full. Then, the earliest event among the stored events was erased, or the last event that occurred was stored on top of the earliest event.

[0003]

Since the conventional data collection method has only one storage circuit, when a failure occurs in the information processing apparatus due to a certain event, the event causing the failure is detected. Therefore, even if the trace data collection is stopped when a failure is detected, if the time from the occurrence of the causal event to the detection of the failure becomes long, the data indicating the causal event will be rewritten by the new event. However, there is a drawback that it is difficult to catch the event that causes the failure.

In addition, when trying to record all events,
There was a drawback that a large storage capacity commensurate with the time was required.

An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a data collection method capable of efficiently collecting trace data with a small storage capacity.

[0006]

According to the data collection method of the present invention, an event that occurs inside the information processing apparatus,
Alternatively, only event data including predetermined data is selected from the first memory circuit that captures a state changed by an external factor and stores it as event data, and the event data stored in the first memory circuit. Selection circuit and a second storage circuit for storing the event data selected by the selection circuit.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. The embodiment of FIG. 1 shows an example applied to a communication control device.

The control circuit 4 performs the main control of the communication control device, outputs the transmission data to the transmission buffer 5, and inputs the reception data stored in the reception buffer 6. Further, each time transmission / reception is executed, the trace data is written in the primary storage circuit 1 as the first storage circuit. The selection circuit 2 receives the trace data from the primary storage circuit 1 and selects the trace data according to the selection condition given by the control circuit 4,
The data is stored in the secondary storage circuit 3 serving as the storage circuit of.

When a plurality of terminal devices are connected via a transmission line 20 connected to the communication control device and data is transmitted and received in a multiplex manner with the plurality of terminal devices, trace data is transmitted to the primary storage circuit 1 each time transmission and reception are executed. The writing / selecting circuit 2 is provided with a selection condition so as to select only transmission / reception for a specific terminal device. The selection circuit 2 takes out only the trace data relating to the specific terminal device from the primary storage circuit 1 and writes it in the secondary storage circuit 3 based on the given selection condition.

[0011]

As described above, the present invention is particularly necessary for the secondary storage circuit by providing the primary storage circuit for storing all trace data and the secondary storage circuit for selecting and storing the trace data. It is possible to leave only the trace data to be used and to leave the same trace data as the conventional one in the primary storage circuit, and it is possible to efficiently store the trace data with a small storage capacity.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

[Explanation of symbols]

 1 Primary Storage Circuit 2 Selection Circuit 3 Secondary Storage Circuit 4 Control Circuit 5 Transmission Buffer 6 Reception Buffer 20 Transmission Line

Claims (1)

Claim: What is claimed is: 1. A first storage circuit, which stores an event data that captures an event occurring inside the device itself or a state changed due to an external factor in an information processing device, and stores the event data. Of the event data stored in the memory circuit, and a second memory circuit for storing the event data selected by the selection circuit. A data collection method for an information processing device, characterized in that