1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/test_kit.h>
#include <vespa/searchlib/attribute/attribute.h>
#include <vespa/searchlib/attribute/attributefactory.h>
#include <vespa/searchlib/attribute/attributevector.hpp>
#include <vespa/searchlib/attribute/integerbase.h>
#include <vespa/searchlib/attribute/address_space_usage.h>
#include <vespa/log/log.h>
LOG_SETUP("attribute_compaction_test");
using search::IntegerAttribute;
using search::AttributeVector;
using search::attribute::Config;
using search::attribute::BasicType;
using search::attribute::CollectionType;
using search::AddressSpace;
using AttributePtr = AttributeVector::SP;
using AttributeStatus = search::attribute::Status;
namespace
{
struct DocIdRange {
uint32_t docIdStart;
uint32_t docIdLimit;
DocIdRange(uint32_t docIdStart_, uint32_t docIdLimit_)
: docIdStart(docIdStart_),
docIdLimit(docIdLimit_)
{
}
uint32_t begin() { return docIdStart; }
uint32_t end() { return docIdLimit; }
uint32_t size() { return end() - begin(); }
};
template <typename VectorType>
bool is(AttributePtr &v)
{
return dynamic_cast<VectorType *>(v.get());
}
template <typename VectorType>
VectorType &as(AttributePtr &v)
{
return dynamic_cast<VectorType &>(*v);
}
void cleanAttribute(AttributeVector &v, DocIdRange range)
{
for (uint32_t docId = range.begin(); docId < range.end(); ++docId) {
v.clearDoc(docId);
}
v.commit(true);
v.incGeneration();
}
DocIdRange addAttributeDocs(AttributePtr &v, uint32_t numDocs)
{
uint32_t startDoc = 0;
uint32_t lastDoc = 0;
EXPECT_TRUE(v->addDocs(startDoc, lastDoc, numDocs));
EXPECT_EQUAL(startDoc + numDocs - 1, lastDoc);
DocIdRange range(startDoc, startDoc + numDocs);
cleanAttribute(*v, range);
return range;
}
void populateAttribute(IntegerAttribute &v, DocIdRange range, uint32_t values)
{
for(uint32_t docId = range.begin(); docId < range.end(); ++docId) {
v.clearDoc(docId);
for (uint32_t vi = 0; vi <= values; ++vi) {
EXPECT_TRUE(v.append(docId, 42, 1) );
}
if ((docId % 100) == 0) {
v.commit();
}
}
v.commit(true);
v.incGeneration();
}
void populateAttribute(AttributePtr &v, DocIdRange range, uint32_t values)
{
if (is<IntegerAttribute>(v)) {
populateAttribute(as<IntegerAttribute>(v), range, values);
}
}
void hammerAttribute(IntegerAttribute &v, DocIdRange range, uint32_t count)
{
uint32_t work = 0;
for (uint32_t i = 0; i < count; ++i) {
for (uint32_t docId = range.begin(); docId < range.end(); ++docId) {
v.clearDoc(docId);
EXPECT_TRUE(v.append(docId, 42, 1));
}
work += range.size();
if (work >= 100000) {
v.commit(true);
work = 0;
} else {
v.commit();
}
}
v.commit(true);
v.incGeneration();
}
void hammerAttribute(AttributePtr &v, DocIdRange range, uint32_t count)
{
if (is<IntegerAttribute>(v)) {
hammerAttribute(as<IntegerAttribute>(v), range, count);
}
}
Config compactAddressSpaceAttributeConfig(bool enableAddressSpaceCompact)
{
Config cfg(BasicType::INT8, CollectionType::ARRAY);
cfg.setCompactionStrategy({ 1.0, (enableAddressSpaceCompact ? 0.2 : 1.0) });
return cfg;
}
}
class Fixture {
public:
AttributePtr _v;
Fixture(Config cfg)
: _v()
{ _v = search::AttributeFactory::createAttribute("test", cfg); }
~Fixture() { }
DocIdRange addDocs(uint32_t numDocs) { return addAttributeDocs(_v, numDocs); }
void populate(DocIdRange range, uint32_t values) { populateAttribute(_v, range, values); }
void hammer(DocIdRange range, uint32_t count) { hammerAttribute(_v, range, count); }
void clean(DocIdRange range) { cleanAttribute(*_v, range); }
AttributeStatus getStatus() { _v->commit(true); return _v->getStatus(); }
AttributeStatus getStatus(const vespalib::string &prefix) {
AttributeStatus status(getStatus());
LOG(info, "status %s: used=%zu, dead=%zu, onHold=%zu",
prefix.c_str(), status.getUsed(), status.getDead(), status.getOnHold());
return status;
}
const Config &getConfig() const { return _v->getConfig(); }
AddressSpace getMultiValueAddressSpaceUsage() const {return _v->getAddressSpaceUsage().multiValueUsage(); }
AddressSpace getMultiValueAddressSpaceUsage(const vespalib::string &prefix) {
AddressSpace usage(getMultiValueAddressSpaceUsage());
LOG(info, "address space usage %s: used=%zu, dead=%zu, limit=%zu, usage=%12.8f",
prefix.c_str(), usage.used(), usage.dead(), usage.limit(), usage.usage());
return usage;
}
};
TEST_F("Test that compaction of integer array attribute reduces memory usage", Fixture({ BasicType::INT64, CollectionType::ARRAY }))
{
DocIdRange range1 = f.addDocs(2000);
DocIdRange range2 = f.addDocs(1000);
f.populate(range1, 40);
f.populate(range2, 40);
AttributeStatus beforeStatus = f.getStatus("before");
f.clean(range1);
AttributeStatus afterStatus = f.getStatus("after");
EXPECT_LESS(afterStatus.getUsed(), beforeStatus.getUsed());
}
TEST_F("Test that no compaction of int8 array attribute increases address space usage", Fixture(compactAddressSpaceAttributeConfig(false)))
{
DocIdRange range1 = f.addDocs(1000);
DocIdRange range2 = f.addDocs(1000);
f.populate(range1, 1000);
f.hammer(range2, 101);
AddressSpace afterSpace = f.getMultiValueAddressSpaceUsage("after");
// 100 * 1000 dead clusters due to new values for docids
// 1 reserved cluster accounted as dead
EXPECT_EQUAL(100001u, afterSpace.dead());
}
TEST_F("Test that compaction of int8 array attribute limits address space usage", Fixture(compactAddressSpaceAttributeConfig(true)))
{
DocIdRange range1 = f.addDocs(1000);
DocIdRange range2 = f.addDocs(1000);
f.populate(range1, 1000);
f.hammer(range2, 101);
AddressSpace afterSpace = f.getMultiValueAddressSpaceUsage("after");
// DEAD_CLUSTERS_SLACK in multi value mapping is is 64k
EXPECT_GREATER(65536u, afterSpace.dead());
}
TEST_MAIN() { TEST_RUN_ALL(); }
|
