Using a plurality of sub-buffers and a free segment list to allocate segments to a plurality of threads to use for writing data

摘要

Provided are a computer program product, system, and method for using a plurality of sub-buffers and a free segment list to allocate segments to a plurality of threads to use for writing data. Groups of threads are assigned to sub-buffers. At least one segment of data is indicated in each of the sub-buffers. The threads assigned to one of the sub-buffers write to the at least one segment indicated in the sub-buffer to which the threads are assigned. A free segment list indicates segments which are not indicated in one of the sub-buffers. In response to one of the segments in a containing sub-buffer comprising one of the sub-buffers becoming a full segment having less than a threshold amount of free space, the indication of the full segment in the containing sub-buffer is replaced with one of the segments indicated in the free segment list.

主权项

1. A computer program product for managing data written by multiple threads executed by at least one processing unit, the computer program product comprising a computer readable storage medium having computer readable program code embodied therein that when executed performs operations, the operations comprising:
indicating groups of threads assigned to sub-buffers; indicating at least one segment of data in each of the sub-buffers, wherein the threads assigned to one of the sub-buffers write to the at least one segment of data indicated in the sub-buffer to which the threads are assigned; indicating segments in a free segment list which are not indicated in one of the sub-buffers; and in response to one of the segments in a containing sub-buffer comprising one of the sub-buffers becoming a full segment having less than a threshold amount of free space, replacing the indication of the full segment in the containing sub-buffer with one of the segments indicated in the free segment list.