0
0
bleve/search/collector/search_test.go
abhinavdangeti 7e36109b3c MB-28162: Provide API to estimate memory needed to run a search query
This API (unexported) will estimate the amount of memory needed to execute
a search query over an index before the collector begins data collection.

Sample estimates for certain queries:
{Size: 10, BenchmarkUpsidedownSearchOverhead}
                                                           ESTIMATE    BENCHMEM
TermQuery                                                  4616        4796
MatchQuery                                                 5210        5405
DisjunctionQuery (Match queries)                           7700        8447
DisjunctionQuery (Term queries)                            6514        6591
ConjunctionQuery (Match queries)                           7524        8175
Nested disjunction query (disjunction of disjunctions)     10306       10708
…
2018-03-06 13:53:42 -08:00

164 lines
3.8 KiB
Go

// Copyright (c) 2014 Couchbase, Inc.
//
// Licensed 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.
package collector
import (
"reflect"
"github.com/blevesearch/bleve/document"
"github.com/blevesearch/bleve/index"
"github.com/blevesearch/bleve/search"
)
type stubSearcher struct {
index int
matches []*search.DocumentMatch
}
func (ss *stubSearcher) Size() int {
sizeInBytes := int(reflect.TypeOf(*ss).Size())
for _, entry := range ss.matches {
if entry != nil {
sizeInBytes += entry.Size()
}
}
return sizeInBytes
}
func (ss *stubSearcher) Next(ctx *search.SearchContext) (*search.DocumentMatch, error) {
if ss.index < len(ss.matches) {
rv := ctx.DocumentMatchPool.Get()
rv.IndexInternalID = ss.matches[ss.index].IndexInternalID
rv.Score = ss.matches[ss.index].Score
ss.index++
return rv, nil
}
return nil, nil
}
func (ss *stubSearcher) Advance(ctx *search.SearchContext, ID index.IndexInternalID) (*search.DocumentMatch, error) {
for ss.index < len(ss.matches) && ss.matches[ss.index].IndexInternalID.Compare(ID) < 0 {
ss.index++
}
if ss.index < len(ss.matches) {
rv := ctx.DocumentMatchPool.Get()
rv.IndexInternalID = ss.matches[ss.index].IndexInternalID
rv.Score = ss.matches[ss.index].Score
ss.index++
return rv, nil
}
return nil, nil
}
func (ss *stubSearcher) Close() error {
return nil
}
func (ss *stubSearcher) Weight() float64 {
return 0.0
}
func (ss *stubSearcher) SetQueryNorm(float64) {
}
func (ss *stubSearcher) Count() uint64 {
return uint64(len(ss.matches))
}
func (ss *stubSearcher) Min() int {
return 0
}
func (ss *stubSearcher) DocumentMatchPoolSize() int {
return 0
}
type stubReader struct{}
func (sr *stubReader) Size() int {
return 0
}
func (sr *stubReader) TermFieldReader(term []byte, field string, includeFreq, includeNorm, includeTermVectors bool) (index.TermFieldReader, error) {
return nil, nil
}
func (sr *stubReader) DocIDReaderAll() (index.DocIDReader, error) {
return nil, nil
}
func (sr *stubReader) DocIDReaderOnly(ids []string) (index.DocIDReader, error) {
return nil, nil
}
func (sr *stubReader) FieldDict(field string) (index.FieldDict, error) {
return nil, nil
}
func (sr *stubReader) FieldDictRange(field string, startTerm []byte, endTerm []byte) (index.FieldDict, error) {
return nil, nil
}
func (sr *stubReader) FieldDictPrefix(field string, termPrefix []byte) (index.FieldDict, error) {
return nil, nil
}
func (sr *stubReader) Document(id string) (*document.Document, error) {
return nil, nil
}
func (sr *stubReader) DocumentVisitFieldTerms(id index.IndexInternalID, fields []string, visitor index.DocumentFieldTermVisitor) error {
return nil
}
func (sr *stubReader) Fields() ([]string, error) {
return nil, nil
}
func (sr *stubReader) GetInternal(key []byte) ([]byte, error) {
return nil, nil
}
func (sr *stubReader) DocCount() (uint64, error) {
return 0, nil
}
func (sr *stubReader) ExternalID(id index.IndexInternalID) (string, error) {
return string(id), nil
}
func (sr *stubReader) InternalID(id string) (index.IndexInternalID, error) {
return []byte(id), nil
}
func (sr *stubReader) DumpAll() chan interface{} {
return nil
}
func (sr *stubReader) DumpDoc(id string) chan interface{} {
return nil
}
func (sr *stubReader) DumpFields() chan interface{} {
return nil
}
func (sr *stubReader) Close() error {
return nil
}