impala_tcmalloc_pageheap_unmapped_bytes metric
CDP Private Cloud Data Service metrics for impala_tcmalloc_pageheap_unmapped_bytes.
impala_tcmalloc_pageheap_unmapped_bytes metric
- Name
- impala_tcmalloc_pageheap_unmapped_bytes
- Description
- Number of bytes in free, unmapped pages in page heap. These are bytes that have been released back to the OS, possibly by one of the MallocExtension "Release" calls. They can be used to fulfill allocation requests, but typically incur a page fault. They always count towards virtual memory usage, and depending on the OS, typically do not count towards physical memory usage.
- Type
- GAUGE
- Labels
- Unit
- Aggregates
- Meta
-
- Category: dwx
- Deployment: coordinator
- Additional Notes
- null
- Version
- null
