pezkuwichain
b6d35f6faf
Updated 4763 files with dual copyright: - Parity Technologies (UK) Ltd. - Dijital Kurdistan Tech Institute
54 lines
1.7 KiB
Rust
54 lines
1.7 KiB
Rust
// Copyright (C) Parity Technologies (UK) Ltd. and Dijital Kurdistan Tech Institute
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// This file is part of Pezkuwi.
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// Pezkuwi is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Pezkuwi is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Pezkuwi. If not, see <http://www.gnu.org/licenses/>.
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use tikv_jemalloc_ctl::stats;
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#[derive(Clone)]
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pub struct MemoryAllocationTracker {
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epoch: tikv_jemalloc_ctl::epoch_mib,
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allocated: stats::allocated_mib,
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resident: stats::resident_mib,
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}
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impl MemoryAllocationTracker {
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pub fn new() -> Result<Self, tikv_jemalloc_ctl::Error> {
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Ok(Self {
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epoch: tikv_jemalloc_ctl::epoch::mib()?,
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allocated: stats::allocated::mib()?,
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resident: stats::resident::mib()?,
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})
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}
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pub fn snapshot(&self) -> Result<MemoryAllocationSnapshot, tikv_jemalloc_ctl::Error> {
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// update stats by advancing the allocation epoch
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self.epoch.advance()?;
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let allocated = self.allocated.read()?;
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let resident = self.resident.read()?;
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Ok(MemoryAllocationSnapshot { allocated, resident })
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}
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}
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/// Snapshot of collected memory metrics.
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#[non_exhaustive]
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#[derive(Debug, Clone)]
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pub struct MemoryAllocationSnapshot {
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/// Total resident memory, in bytes.
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pub resident: usize,
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/// Total allocated memory, in bytes.
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pub allocated: usize,
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}
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