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[PGPRO-7366] add function which shows memory usage #99

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Merged
merged 1 commit into from
Jan 30, 2023
Merged

[PGPRO-7366] add function which shows memory usage #99

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16 changes: 16 additions & 0 deletions aqo--1.5--1.6.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -98,3 +98,19 @@ AS 'MODULE_PATHNAME', 'aqo_queries'
LANGUAGE C STRICT VOLATILE PARALLEL SAFE;

CREATE VIEW aqo_queries AS SELECT * FROM aqo_queries();

CREATE FUNCTION aqo_memory_usage(
OUT name text,
OUT allocated_size int,
OUT used_size int
)
RETURNS SETOF record
AS $$
SELECT name, total_bytes, used_bytes FROM pg_backend_memory_contexts
WHERE name LIKE 'AQO%'
UNION
SELECT name, allocated_size, size FROM pg_shmem_allocations
WHERE name LIKE 'AQO%';
$$ LANGUAGE SQL;
COMMENT ON FUNCTION aqo_memory_usage() IS
'Show allocated sizes and used sizes of aqo`s memory contexts and hash tables';
9 changes: 9 additions & 0 deletions t/001_pgbench.pl
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Expand Up @@ -160,6 +160,9 @@
WHERE v.exec_time > 0.");
is($res, 3);

$res = $node->safe_psql('postgres', "SELECT * FROM aqo_memory_usage() AS t1");
note("MEMORY:\n$res\n");

# ##############################################################################
#
# pgbench on a database with AQO in 'learn' mode.
Expand All @@ -184,6 +187,9 @@
"$TRANSACTIONS", '-c', "$CLIENTS", '-j', "$THREADS" ],
'pgbench in frozen mode');

$res = $node->safe_psql('postgres', "SELECT * FROM aqo_memory_usage() AS t1");
note("MEMORY:\n$res\n");

# ##############################################################################
#
# Check procedure of ML-knowledge data cleaning.
Expand Down Expand Up @@ -299,6 +305,9 @@
is($new_stat_count == $stat_count - $pgb_stat_count, 1,
'Total number of samples in aqo_query_stat');

$res = $node->safe_psql('postgres', "SELECT * FROM aqo_memory_usage() AS t1");
note("MEMORY:\n$res\n");

# ##############################################################################
#
# AQO works after moving to another schema
Expand Down