mito2/memtable/
stats.rs

1// Copyright 2023 Greptime Team
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15//! Internal metrics of the memtable.
16
17use store_api::storage::SequenceNumber;
18
19/// Metrics of writing memtables.
20pub(crate) struct WriteMetrics {
21    /// Size allocated by keys.
22    pub(crate) key_bytes: usize,
23    /// Size allocated by values.
24    pub(crate) value_bytes: usize,
25    /// Minimum timestamp.
26    pub(crate) min_ts: i64,
27    /// Maximum timestamp
28    pub(crate) max_ts: i64,
29    /// Rows written.
30    pub(crate) num_rows: usize,
31    /// Max sequence number written.
32    pub(crate) max_sequence: SequenceNumber,
33}
34
35impl Default for WriteMetrics {
36    fn default() -> Self {
37        Self {
38            key_bytes: 0,
39            value_bytes: 0,
40            min_ts: i64::MAX,
41            max_ts: i64::MIN,
42            num_rows: 0,
43            max_sequence: SequenceNumber::MIN,
44        }
45    }
46}
mito2/memtable/stats.rs

mito2/memtable/
stats.rs
