Forces a Java garbage collection for the connector, recovering memory. An example of the memory used, garbage collection, and resulting memory usage below.
mysql>tungsten mem info;+-----------------------+-------------------------------------------------------+ | JVM Memory statistics | Value in bytes | +-----------------------+-------------------------------------------------------+ | Peak Thread Count | 18 | | Heap Memory | init = 67108864(65536K) used = 17437496(17028K) | | | committed = 64880640(63360K) max = 259522560(253440K) | | Non-heap Memory | init = 24313856(23744K) used = 13970024(13642K) | | | committed = 24313856(23744K) max = 224395264(219136K) | | Thread Count | 16 | +-----------------------+-------------------------------------------------------+ 4 rows in set (0.05 sec) mysql>tungsten gc;+-------------------------------+ | Message | +-------------------------------+ | Garbage collection successful | +-------------------------------+ 1 row in set (0.41 sec) mysql>tungsten mem info;+-----------------------+-------------------------------------------------------+ | JVM Memory statistics | Value in bytes | +-----------------------+-------------------------------------------------------+ | Peak Thread Count | 18 | | Heap Memory | init = 67108864(65536K) used = 4110088(4013K) | | | committed = 64946176(63424K) max = 259522560(253440K) | | Non-heap Memory | init = 24313856(23744K) used = 13970024(13642K) | | | committed = 24313856(23744K) max = 224395264(219136K) | | Thread Count | 16 | +-----------------------+-------------------------------------------------------+ 4 rows in set (0.00 sec)