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
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/testapp.h>
#include <vespa/vespalib/datastore/entryref.h>
#include <vespa/vespalib/datastore/array_store_config.h>
#include <vespa/vespalib/util/size_literals.h>
using namespace vespalib::datastore;
using AllocSpec = ArrayStoreConfig::AllocSpec;
constexpr float ALLOC_GROW_FACTOR = 0.2;
struct Fixture
{
using EntryRefType = EntryRefT<18>;
ArrayStoreConfig cfg;
Fixture(uint32_t max_type_id,
const AllocSpec &defaultSpec)
: cfg(max_type_id, defaultSpec) {}
Fixture(uint32_t max_type_id,
size_t hugePageSize,
size_t smallPageSize,
size_t max_buffer_size,
size_t min_num_entries_for_new_buffer)
: cfg(ArrayStoreConfig::optimizeForHugePage(max_type_id,
[](size_t type_id) noexcept { return type_id * sizeof(int); },
hugePageSize, smallPageSize,
EntryRefType::offsetSize(),
max_buffer_size,
min_num_entries_for_new_buffer,
ALLOC_GROW_FACTOR)) { }
void assertSpec(uint32_t type_id, uint32_t num_entries_for_new_buffer) {
assertSpec(type_id, EntryRefType::offsetSize(), num_entries_for_new_buffer);
}
void assertSpec(uint32_t type_id, uint32_t max_entries, uint32_t num_entries_for_new_buffer) {
assertSpec(type_id, AllocSpec(0, max_entries,
num_entries_for_new_buffer, ALLOC_GROW_FACTOR));
}
void assertSpec(uint32_t type_id, const AllocSpec &expSpec) {
const auto& actSpec = cfg.spec_for_type_id(type_id);
EXPECT_EQUAL(expSpec.min_entries_in_buffer, actSpec.min_entries_in_buffer);
EXPECT_EQUAL(expSpec.max_entries_in_buffer, actSpec.max_entries_in_buffer);
EXPECT_EQUAL(expSpec.num_entries_for_new_buffer, actSpec.num_entries_for_new_buffer);
EXPECT_EQUAL(expSpec.allocGrowFactor, actSpec.allocGrowFactor);
}
};
AllocSpec
makeSpec(size_t min_entries_in_buffer,
size_t max_entries_in_buffer,
size_t num_entries_for_new_buffer)
{
return AllocSpec(min_entries_in_buffer, max_entries_in_buffer, num_entries_for_new_buffer, ALLOC_GROW_FACTOR);
}
TEST_F("require that default allocation spec is given for all array sizes", Fixture(3, makeSpec(4, 32, 8)))
{
EXPECT_EQUAL(3u, f.cfg.max_type_id());
TEST_DO(f.assertSpec(0, makeSpec(4, 32, 8)));
TEST_DO(f.assertSpec(1, makeSpec(4, 32, 8)));
TEST_DO(f.assertSpec(2, makeSpec(4, 32, 8)));
TEST_DO(f.assertSpec(3, makeSpec(4, 32, 8)));
}
struct BigBuffersFixture : public Fixture {
BigBuffersFixture() : Fixture(1023, 2_Mi, 4_Ki, 1024_Gi, 8_Ki) { }
};
TEST_F("require that we can generate config optimized for a given huge page without capped buffer sizes", BigBuffersFixture())
{
EXPECT_EQUAL(1023u, f.cfg.max_type_id());
TEST_DO(f.assertSpec(0, 8_Ki)); // large arrays
TEST_DO(f.assertSpec(1, 256_Ki));
TEST_DO(f.assertSpec(2, 256_Ki));
TEST_DO(f.assertSpec(3, 168_Ki));
TEST_DO(f.assertSpec(4, 128_Ki));
TEST_DO(f.assertSpec(5, 100_Ki));
TEST_DO(f.assertSpec(6, 84_Ki));
TEST_DO(f.assertSpec(32, 16_Ki));
TEST_DO(f.assertSpec(33, 12_Ki));
TEST_DO(f.assertSpec(42, 12_Ki));
TEST_DO(f.assertSpec(43, 8_Ki));
TEST_DO(f.assertSpec(1022, 8_Ki));
TEST_DO(f.assertSpec(1023, 8_Ki));
}
struct CappedBuffersFixture : public Fixture {
CappedBuffersFixture() : Fixture(1023, 2_Mi, 4_Ki, 256_Mi, 8_Ki) { }
size_t max_entries(size_t array_size) {
auto entry_size = array_size * sizeof(int);
return (256_Mi + entry_size - 1) / entry_size;
}
};
TEST_F("require that we can generate config optimized for a given huge page with capped buffer sizes", CappedBuffersFixture())
{
EXPECT_EQUAL(1023u, f.cfg.max_type_id());
TEST_DO(f.assertSpec(0, f.max_entries(1023), 8_Ki)); // large arrays
TEST_DO(f.assertSpec(1, 256_Ki));
TEST_DO(f.assertSpec(2, 256_Ki));
TEST_DO(f.assertSpec(3, 168_Ki));
TEST_DO(f.assertSpec(4, 128_Ki));
TEST_DO(f.assertSpec(5, 100_Ki));
TEST_DO(f.assertSpec(6, 84_Ki));
TEST_DO(f.assertSpec(32, 16_Ki));
TEST_DO(f.assertSpec(33, 12_Ki));
TEST_DO(f.assertSpec(42, 12_Ki));
TEST_DO(f.assertSpec(43, 8_Ki));
TEST_DO(f.assertSpec(1022, f.max_entries(1022), 8_Ki));
TEST_DO(f.assertSpec(1023, f.max_entries(1023), 8_Ki));
}
TEST_MAIN() { TEST_RUN_ALL(); }
|
