yah01 dd5f896dc8
Load batch by batch (#25212)
This will significantly reduce the memory usage while loading
- 1x memory usage and MBs overhead for buffer (memory mode)
- only MBs overhead for buffer (mmap mode)

Signed-off-by: yah01 <yang.cen@zilliz.com>
2023-07-06 13:58:27 +08:00

92 lines
2.9 KiB
C++

// Licensed to the LF AI & Data foundation 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
#include <string>
#include <memory>
#include <oneapi/tbb/concurrent_queue.h>
#include "storage/FieldDataInterface.h"
#include "common/Channel.h"
namespace milvus::storage {
template <typename Type>
class FieldData : public FieldDataImpl<Type, true> {
public:
static_assert(IsScalar<Type> || std::is_same_v<Type, PkType>);
explicit FieldData(DataType data_type, int64_t buffered_num_rows = 0)
: FieldDataImpl<Type, true>::FieldDataImpl(
1, data_type, buffered_num_rows) {
}
};
template <>
class FieldData<std::string> : public FieldDataStringImpl {
public:
static_assert(IsScalar<std::string> || std::is_same_v<std::string, PkType>);
explicit FieldData(DataType data_type, int64_t buffered_num_rows = 0)
: FieldDataStringImpl(data_type, buffered_num_rows) {
}
};
template <>
class FieldData<Json> : public FieldDataJsonImpl {
public:
static_assert(IsScalar<std::string> || std::is_same_v<std::string, PkType>);
explicit FieldData(DataType data_type, int64_t buffered_num_rows = 0)
: FieldDataJsonImpl(data_type, buffered_num_rows) {
}
};
template <>
class FieldData<FloatVector> : public FieldDataImpl<float, false> {
public:
explicit FieldData(int64_t dim,
DataType data_type,
int64_t buffered_num_rows = 0)
: FieldDataImpl<float, false>::FieldDataImpl(
dim, data_type, buffered_num_rows) {
}
};
template <>
class FieldData<BinaryVector> : public FieldDataImpl<uint8_t, false> {
public:
explicit FieldData(int64_t dim,
DataType data_type,
int64_t buffered_num_rows = 0)
: binary_dim_(dim),
FieldDataImpl(dim / 8, data_type, buffered_num_rows) {
Assert(dim % 8 == 0);
}
int64_t
get_dim() const {
return binary_dim_;
}
private:
int64_t binary_dim_;
};
using FieldDataPtr = std::shared_ptr<FieldDataBase>;
using FieldDataChannel = Channel<storage::FieldDataPtr>;
using FieldDataChannelPtr = std::shared_ptr<FieldDataChannel>;
} // namespace milvus::storage