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Improved concurrent inserts test for HNSW [skip ci]

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This commit is contained in:
Andrew Kane
2023-08-11 18:33:01 -07:00
parent 9d689afd7e
commit 098813c483
1 changed files with 21 additions and 25 deletions
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46
test/t/014_hnsw_inserts.pl
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@@ -17,22 +17,8 @@ $node->start;
# Create table and index
$node->safe_psql("postgres", "CREATE EXTENSION vector;");
$node->safe_psql("postgres", "CREATE TABLE tst (v vector($dim));");
$node->safe_psql("postgres",
"INSERT INTO tst SELECT ARRAY[$array_sql] FROM generate_series(1, 100) i;"
);
$node->safe_psql("postgres", "CREATE INDEX ON tst USING hnsw (v vector_l2_ops);");
$node->pgbench(
"--no-vacuum --client=5 --transactions=100",
0,
[qr{actually processed}],
[qr{^$}],
"concurrent INSERTs",
{
"014_hnsw_inserts" => "INSERT INTO tst SELECT ARRAY[$array_sql] FROM generate_series(1, 10) i;"
}
);
sub idx_scan
{
# Stats do not update instantaneously
@@ -41,18 +27,28 @@ sub idx_scan
$node->safe_psql("postgres", "SELECT idx_scan FROM pg_stat_user_indexes WHERE indexrelid = 'tst_v_idx'::regclass;");
}
my $expected = 100 + 5 * 100 * 10;
for my $i (1 .. 20)
{
$node->pgbench(
"--no-vacuum --client=10 --transactions=1",
0,
[qr{actually processed}],
[qr{^$}],
"concurrent INSERTs",
{
"014_hnsw_inserts_$i" => "INSERT INTO tst VALUES (ARRAY[$array_sql]);"
}
);
my $count = $node->safe_psql("postgres", "SELECT COUNT(*) FROM tst;");
is($count, $expected);
is(idx_scan(), 0);
my $count = $node->safe_psql("postgres", qq(
SET enable_seqscan = off;
SELECT COUNT(*) FROM (SELECT v FROM tst ORDER BY v <-> (SELECT v FROM tst LIMIT 1)) t;
));
is($count, 10);
$count = $node->safe_psql("postgres", qq(
SET enable_seqscan = off;
SET hnsw.ef_search = 400;
SELECT COUNT(*) FROM (SELECT v FROM tst ORDER BY v <-> (SELECT v FROM tst LIMIT 1)) t;
));
is($count, 400);
is(idx_scan(), 1);
$node->safe_psql("postgres", "TRUNCATE tst;");
}
is(idx_scan(), 20);
done_testing();