Provides information about the fragmentation in a generation.
check-fragmentation gen-num => total-free, total-small-blocks, total-large-blocks
0 for the most recent generation, 1 for the most recent two generations, and so on up to a maximum (usually 3). Numbers outside this range signal an error.
Total free space in the generation.
Amount of free space in the generation which is available in blocks of 512 bytes or larger.
Amount of free space in the generation which is available in blocks of 4096 bytes or larger.
The latter two values give indication of the level of fragmentation in the generation. This information can be used, for example, to decide whether to call
LispWorks Reference Manual - 25 Jul 2003