JPH05189275A - Memory managment system and memory dump collecting system - Google Patents

Abstract

PURPOSE:To reduce the capacity of a secondary storage part in a memory management system by providing a storage part to store data and an update time storage part to store time when a byte is updated lastly in accordance with every one byte of the storage part. CONSTITUTION:A computer 5 adopting a memory dump collecting system is constituted so as to include a temporary storage part 1 and a time limit designating part 2, and further, it is constituted so as to include the secondary storage part 3 of the collecting destination of memory dump and an arithmetic part 4. The time limit designating part 2 is a part to designate the standard time of a memory dump collected object, and the contents of the storage part updated after the time designated by this part are made the collected object of the memory dump. Then, since only the byte or the block of the storage part updated after the designated time is made the collected objected of the memory dump, the capacity of the secondary storage part can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer memory management system and a memory dump collection system.

[0002]

2. Description of the Related Art In a conventional memory dump collection method, all the memories of a computer are targeted for memory dump collection without considering whether or not a part of the memory has been updated after a specified time.

[0003]

In this conventional memory dump collecting method, since all the memory of the computer memory is targeted for collecting the memory dump, a large amount of the secondary storage unit which is the collection destination of the memory dump is required. There was a problem that

It is an object of the present invention to provide a memory dump sampling system which can reduce the capacity of the secondary storage unit.

[0005]

According to the present invention, in a memory management system of a memory used in a computer, a storage unit for storing data, and each byte of the storage unit is last updated in correspondence with each byte. And an update time storage unit that stores the time that is set.

Further, the present invention relates to a memory management system of a memory used in a computer, corresponding to each storage block for storing data and each block of a storage block configured as a set of a plurality of bytes in the storage block. And a block update time storage unit that stores a time when any byte of the block was last updated.

The present invention further includes a primary storage unit having a storage unit for storing data and an update time storage unit for storing the time at which the byte was last updated for each byte of the storage unit, It includes a time specification unit that specifies a specified time, an arithmetic unit that performs a memory dump collection process, and a secondary storage unit that is a memory dump collection destination. When collecting a memory dump, each byte of the primary storage unit When the time of the update time storage unit is later than the time specified by the time limit specification unit, the memory dump of the byte is taken, and when it is earlier, the memory dump of the byte is not taken.

Further, according to the present invention, one of the bytes of the block is last updated in correspondence with each block of the storage unit configured to store data and a plurality of bytes of the storage unit. A primary storage unit having a block update time storage unit for storing time, a time limit designating unit for designating a designated time, an arithmetic unit for performing a memory dump collection process, and a secondary storage unit as a memory dump collection destination. When collecting the memory dump, if the time in the block update time storage unit of each block in the primary storage unit is later than the time specified by the time limit specification unit, it acts to collect the memory dump of the byte, and if it is earlier Is characterized in that a memory dump of the byte is not collected.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a memory configuration diagram of a computer according to an embodiment of the memory management system of the present invention. It is configured to include a storage unit that stores data, and an update time storage unit that stores, for each byte of the storage unit, a time when the byte was last updated.

FIG. 2 is a memory configuration diagram of a computer of another embodiment of the memory management system of the present invention. Block update time storage that stores the time when any byte of the storage unit that stores data and each block of the storage block configured as a collection of 3 bytes of the storage unit is last updated And is configured to include a section.

FIG. 3 is a block diagram showing an embodiment of a computer adopting the memory dump collecting method of the present invention.

A computer 5 adopting the memory dump collection method of the present invention is configured to include a primary storage unit 1 and a time limit designation unit 2, and further, a secondary storage unit 3 which is a memory dump collection destination. The calculation unit 4 is included.

The primary storage unit 1 is similar to that described with reference to FIG. 1, and stores a storage unit for storing data and an update for storing the time at which the byte was last updated for each byte of the storage unit. And a time storage unit.

The time limit designating section 2 is a section for designating a reference time of a memory dump collection target, and the contents of the storage section updated after the time designated in this section are the memory dump collection target.

Next, the operation of this embodiment will be described.

FIG. 4 is a block diagram of the arithmetic unit 4 of the embodiment shown in FIG.
6 is a flowchart showing the processing procedure of the memory dump collection processing of FIG.

First, the initial value is set (step 1
1). Next, the update time of the byte for determining the next memory dump collection is input from the primary storage unit 1 (step 1
2). Therefore, when step 12 is executed after step 11, the update time of the first byte for determining the memory dump collection is input.

In step 13, it is determined whether or not the update time input in step 12 is after the specified time specified by the time specifying part 2 (step 13). The judgment result is YES
In this case, a memory dump of the byte data is collected in the secondary storage unit 3 (step 14). If the determination result is NO, the process directly proceeds to step 15.

In step 15, it is judged whether or not all the memory dump collection processing has been completed. Judgment result is NO
In the case of, the process returns to step 12 again, and thereafter, similarly, steps 12 to 15 are repeated until the memory dump collecting process is completed. If the determination result in step 15 is YES, the process ends.

In the embodiment shown in FIGS. 3 and 4, the primary storage unit 1 of the computer is similar to that described in FIG.
Although the description is given with a configuration including a storage unit that stores data and an update time storage unit that stores the time at which the byte was last updated for each byte of the storage unit.
As in the case described with reference to FIG. 2, the primary storage unit 1 of the computer corresponds to each of the storage unit for storing data and the block of the storage block configured as a collection of a plurality of bytes of the storage unit. It is obvious that the same effect can be obtained when the primary storage unit 1 including the block update time storage unit that stores the update time of any byte is replaced.

[0022]

As described above, according to the present invention, only the bytes or blocks of the storage unit that have been updated after the designated time are subject to the memory dump collection, so the capacity of the secondary storage unit can be reduced. There is an effect.

[Brief description of drawings]

FIG. 1 is a memory configuration diagram of a computer according to an embodiment of a memory management system of the present invention.

FIG. 2 is a memory configuration diagram of a computer of another embodiment of the memory management system of the present invention.

FIG. 3 is a configuration diagram showing an embodiment of a computer adopting the memory dump collecting method of the present invention.

FIG. 4 is a flowchart showing a processing procedure of a memory dump collecting process of the calculating means of the embodiment shown in FIG.

[Explanation of symbols]

 1 Primary Storage Section 2 Timed Designation Section 3 Secondary Storage Section 4 Computing Section 5 Computers 11-15 Processing Steps

Claims (4)

[Claims] 1. A memory management system for a memory used in a computer, a storage unit for storing data, and an update time for storing the time at which the byte was last updated for each byte of the storage unit. A memory management method comprising: a storage unit. 2. A memory management system for a memory used in a computer, wherein a storage unit for storing data and a storage block configured as a set of a plurality of bytes in the storage unit correspond to each of the blocks. And a block update time storage unit that stores a time when the byte was last updated. 3. A storage unit for storing data and one of the storage units
A primary storage unit having an update time storage unit that stores the time when the byte was last updated corresponding to each byte, a time limit designation unit that designates a designated time, and an arithmetic unit that performs a memory dump collection process, When a memory dump is collected, the update time of each byte in the primary storage unit is later than the time specified by the time limit specification unit when the memory dump is collected. A memory dump collecting method, which operates to collect a memory dump of, and does not collect a memory dump of the byte if it is early. 4. A storage unit for storing data and a storage block configured as a set of a plurality of bytes in the storage unit, for each block, stores the time when any byte of the block was last updated. A primary storage unit having a block update time storage unit, a time limit designating unit for designating a designated time, an arithmetic unit for performing a memory dump collection process, and a secondary storage unit that is a memory dump collection destination are provided. When collecting the dump, when the time of the block update time storage of each block of the primary storage is later than the time specified by the time limit specification, it operates to collect the memory dump of the byte, and when it is earlier, A memory dump collection method characterized by not collecting a memory dump.