我们的starRocks昨天执行查询任务后，内存一直徘徊在90%上线，即便是我们重启了starRocks集群也不行，依赖占据不释放，我清除了starRocks的全部数据，重启依然如此，想问下如何清理这个内存
Mem Limit: 24.64 GB
Mem Consumption: 378.56 MB
MALLOC: 397392640 ( 379.0 MiB) Bytes in use by application
MALLOC: + 22170796032 (21143.7 MiB) Bytes in page heap freelist
MALLOC: + 22143128 ( 21.1 MiB) Bytes in central cache freelist
MALLOC: + 5336064 ( 5.1 MiB) Bytes in transfer cache freelist
MALLOC: + 22247528 ( 21.2 MiB) Bytes in thread cache freelists
MALLOC: + 172097536 ( 164.1 MiB) Bytes in malloc metadata
MALLOC: ------------
MALLOC: = 22790012928 (21734.2 MiB) Actual memory used (physical + swap)
MALLOC: + 5935513600 ( 5660.5 MiB) Bytes released to OS (aka unmapped)
MALLOC: ------------
MALLOC: = 28725526528 (27394.8 MiB) Virtual address space used
MALLOC:
MALLOC: 49193 Spans in use
MALLOC: 268 Thread heaps in use
MALLOC: 8192 Tcmalloc page size