The system checks GC time of the Loader process every 60 seconds. The alarm is generated when GC time of the Loader process exceeds the threshold (default value: 12 secon
US5933840 * 1997年5月19日 1999年8月3日 International Business Machines Corporation Garbage collection in log-structured information storage systems using age threshold selection of segmentsUS5933840 * May 19, 1997 Aug 3, 1999 International Business Machines Corporation Garbage collection in log-...
An information storage system selects target segments for garbage collection only if their age in the information storage system exceeds an age threshold value and, once past the age threshold, in the order of least utilized segments first. The system determines the age of a segment by ...
Maintenance costs increase when accumulated garbage exceeds a threshold level. That is, to remove fragmentation from storage areas, garbage collection is made at time T or at the N-th update. The expected cost rate of this model is obtained and optimal time T* and number N*, which minimize...
determining a number of valid pages in the victim block; comparing the determined number of valid pages in the victim block to a valid page threshold; and based on the number of valid pages in the victim block being less than the valid page threshold, issuing a garbage collection request for...
1998. An age-threshold algorithm for garbage collection in log-structured arrays and file systems. In High Performance Computing Systems and Applications, J. Schaeffer, Ed. Vol. 478. Springer US, 119-132.J. Menon and L. Stockmeyer, "An age-threshold algo- rithm for garbage collection in ...
by identifying a full memory block, determining whether a block life of the full memory block exceeds a threshold value, and upon determining that the block life of the full memory block exceeds the threshold value, selecting the full memory block as a target block for garbage collection. The...