milvus/cpp/src/cache/CpuCacheMgr.cpp
jinhai 9433bf81cc MS-554 Change license to apache 2.0
Former-commit-id: e09b7dd7872372fa0ece9f5d18ec4c316b89cbe8
2019-09-17 10:51:48 +08:00

62 lines
1.9 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.
#include "CpuCacheMgr.h"
#include "server/ServerConfig.h"
#include "utils/Log.h"
namespace zilliz {
namespace milvus {
namespace cache {
namespace {
constexpr int64_t unit = 1024 * 1024 * 1024;
}
CpuCacheMgr::CpuCacheMgr() {
server::ConfigNode& config = server::ServerConfig::GetInstance().GetConfig(server::CONFIG_CACHE);
int64_t cap = config.GetInt64Value(server::CONFIG_CPU_CACHE_CAPACITY, 16);
cap *= unit;
cache_ = std::make_shared<Cache<DataObjPtr>>(cap, 1UL<<32);
double free_percent = config.GetDoubleValue(server::CACHE_FREE_PERCENT, 0.85);
if(free_percent > 0.0 && free_percent <= 1.0) {
cache_->set_freemem_percent(free_percent);
} else {
SERVER_LOG_ERROR << "Invalid cache_free_percent: " << free_percent <<
", defaultly set to " << cache_->freemem_percent();
}
}
CpuCacheMgr* CpuCacheMgr::GetInstance() {
static CpuCacheMgr s_mgr;
return &s_mgr;
}
engine::VecIndexPtr CpuCacheMgr::GetIndex(const std::string& key) {
DataObjPtr obj = GetItem(key);
if(obj != nullptr) {
return obj->data();
}
return nullptr;
}
}
}
}