Struct tikv_jemalloc_ctl::stats::mapped

pub struct mapped;

Total number of bytes in active extents mapped by the allocator.

This does not include inactive extents, even those that contain unused dirty pages, so there is no strict ordering between this and the value returned by resident. This is a multiple of the page size, and is larger than the value returned by active.

This statistic is cached, and is only refreshed when the epoch is advanced. See the crate::epoch type for more information.

This corresponds to stats.mapped in jemalloc’s API.

Examples

use tikv_jemalloc_ctl::{epoch, stats};
let e = epoch::mib().unwrap();
let mapped = stats::mapped::mib().unwrap();

e.advance().unwrap();
let size = mapped.read().unwrap();
println!("{} bytes of total mapped data", size);

Implementations

impl mapped

pub fn mib() -> Result<mapped_mib>

Returns Management Information Base (MIB)

This value can be used to access the key without doing string lookup.

pub fn name() -> &'static Name

Key crate::keys::Name.

impl mapped

pub fn read() -> Result<size_t>

Reads value using string API.