mirror of
https://gitee.com/milvus-io/milvus.git
synced 2025-12-28 22:45:26 +08:00
45 lines
1.6 KiB
C++
45 lines
1.6 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
|
|
// or more contributor license agreements. See the NOTICE file
|
|
// distributed with this work for additional information
|
|
// regarding copyright ownership. The ASF licenses this file
|
|
// to you under the Apache License, Version 2.0 (the
|
|
// "License"); you may not use this file except in compliance
|
|
// with the License. You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing,
|
|
// software distributed under the License is distributed on an
|
|
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
// KIND, either express or implied. See the License for the
|
|
// specific language governing permissions and limitations
|
|
// under the License.
|
|
|
|
#pragma once
|
|
|
|
namespace milvus {
|
|
namespace engine {
|
|
namespace meta {
|
|
|
|
const size_t S_PS = 1UL;
|
|
const size_t MS_PS = 1000 * S_PS;
|
|
const size_t US_PS = 1000 * MS_PS;
|
|
const size_t NS_PS = 1000 * US_PS;
|
|
|
|
const size_t SECOND = 1UL;
|
|
const size_t M_SEC = 60 * SECOND;
|
|
const size_t H_SEC = 60 * M_SEC;
|
|
const size_t D_SEC = 24 * H_SEC;
|
|
const size_t W_SEC = 7 * D_SEC;
|
|
|
|
// This value is to ignore small raw files when building index.
|
|
// The reason is:
|
|
// 1. The performance of brute-search for small raw files could be better than small index file.
|
|
// 2. And small raw files can be merged to larger files, thus reduce fragmented files count.
|
|
// We decide the value based on a testing for small size raw/index files.
|
|
const size_t BUILD_INDEX_THRESHOLD = 5000;
|
|
|
|
} // namespace meta
|
|
} // namespace engine
|
|
} // namespace milvus
|