Allocate a segment of a buffer to each of a plurality of threads to use for writing data

A system, comprising:

• at least one processor;
• a memory;
• a computer readable storage medium having computer readable program code embodied therein that when executed by the at least one processor performs operations, the operations comprising:
• providing segment information entries in the memory for segments in a buffer;
• providing an assignment of each of a plurality of threads to one of a plurality of segments in the buffer, wherein the threads write to the segment to which they are assigned;
• indicating segments in a free segment list which are not assigned to one of the threads, wherein each segment information entry of the segment information entries in the memory, for each of the segments indicted in the free segment list, indicates that the segment is assigned to the free segment list and a buffer location at which the segment is stored in the buffer;
• and
• in response to one of the segments assigned to one of the threads becoming a full segment having less than a threshold amount of free space, performing:
• indicating in the segment information entry for the full segment assigned to a thread that the segment is assigned to the free segment list, wherein data in the full segment indicated in the free segment list remains available for access until the full segment is reassigned from the free segment list to one of the threads and overwritten;
• and
• assigning one of the segments in the free segment list, different from the full segment, to the thread.

A method for managing data written by multiple threads executed by at least one processing unit in a computing system, comprising:

• providing segment information entries in a memory for segments in a buffer;
• providing an assignment of each of a plurality of threads to one of a plurality of segments in the buffer, wherein the threads write to the segment to which they are assigned;
• indicating segments in a free segment list which are not assigned to one of the threads, wherein each segment information entry of the segment information entries in the memory, for each of the segments indicted in the free segment list, indicates that the segment is assigned to the free segment list and a buffer location at which the segment is stored in the buffer;
• and
• in response to one of the segments assigned to one of the threads becoming a full segment having less than a threshold amount of free space, performing:
• indicating in the segment information entry for the full segment assigned to a thread that the segment is assigned to the free segment list, wherein data in the full segment indicated in the free segment list remains available for access until the full segment is reassigned from the free segment list to one of the threads and overwritten;
• and
• assigning one of the segments, different from the full segment, in the free segment list to the thread.