APPARATUS AND METHOD TO RECORD LOG INFORMATION AT HIGH-SPEED IN A BUFFER DIVIDED INTO RECENT AND OLD LOG AREAS

摘要

An apparatus includes a buffer-area whose size is limited. The buffer-area includes element areas each configured to store a single piece of log-information, and is divided into a first log-area that stores recent log-information and a second log-area that stores old log-information. When recording a new piece of log-information to the buffer-area, the apparatus determines whether the new piece of log-information is to be recorded in the first or second log-area. The apparatus writes the new piece of log-information to the first and second log-areas when the new piece of log-information is determined to be recorded in the first and second log-areas, respectively. When there are no element areas available for the new piece of log-information left in the first or second log-area, the apparatus changes allocation information configured to allocate each element area in the buffer-area to one of the first and second log-areas.

主权项

1. An apparatus comprising:
a memory including a buffer area whose size is limited, the buffer area including element areas each configured to store a single piece of log information, the buffer area being configured to be divided into a first log area that stores recent log information and a second log area that stores old log information; and a processor coupled to the memory and configured to:
when recording a new piece of log information to the buffer area, determine whether the new piece of log information is to be recorded in the first log area or in the second log area,write the new piece of log information to the first log area when the new piece of log information is determined to be recorded in the first log area,write the new piece of log information to the second log area when the new piece of log information is determined to be recorded in the second log area, andwhen there are no element areas available for the new piece of log information left in the first log area or the second log area, change allocation information configured to allocate each element area in the buffer area to one of the first and second log areas.