57 lines
3.1 KiB
Plaintext
57 lines
3.1 KiB
Plaintext
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A simple benchmark was run on 2015-11-24 to measure the effectiveness of adding an index on pending_notify
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$ sudo ./runner
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Creating DB and table
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Populating non-pending rows
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Populating pending rows
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+-----------+
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| COUNT(id) |
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+-----------+
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| 5000 |
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+-----------+
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+-----------+
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| COUNT(id) |
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+-----------+
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| 200000 |
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+-----------+
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Without any index
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+----+-------------+-------+------+---------------+------+---------+------+--------+-----------------------------+
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| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
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+----+-------------+-------+------+---------------+------+---------+------+--------+-----------------------------+
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| 1 | SIMPLE | zones | ALL | NULL | NULL | NULL | NULL | 204013 | Using where; Using filesort |
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+----+-------------+-------+------+---------------+------+---------+------+--------+-----------------------------+
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Benchmark
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Average number of seconds to run all queries: 0.137 seconds
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Minimum number of seconds to run all queries: 0.122 seconds
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Maximum number of seconds to run all queries: 0.158 seconds
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Number of clients running queries: 3
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Average number of queries per client: 1
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With pending_notify index
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+----+-------------+-------+------+--------------------+--------------------+---------+-------+------+-----------------------------+
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| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
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+----+-------------+-------+------+--------------------+--------------------+---------+-------+------+-----------------------------+
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| 1 | SIMPLE | zones | ref | pending_notify_idx | pending_notify_idx | 2 | const | 4999 | Using where; Using filesort |
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+----+-------------+-------+------+--------------------+--------------------+---------+-------+------+-----------------------------+
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Benchmark
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Average number of seconds to run all queries: 0.012 seconds
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Minimum number of seconds to run all queries: 0.010 seconds
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Maximum number of seconds to run all queries: 0.019 seconds
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Number of clients running queries: 3
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Average number of queries per client: 1
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With created_at and pending_notify index
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+----+-------------+-------+------+--------------------+--------------------+---------+-------+------+-----------------------------+
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| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
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+----+-------------+-------+------+--------------------+--------------------+---------+-------+------+-----------------------------+
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| 1 | SIMPLE | zones | ref | pending_notify_idx | pending_notify_idx | 2 | const | 4999 | Using where; Using filesort |
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+----+-------------+-------+------+--------------------+--------------------+---------+-------+------+-----------------------------+
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Benchmark
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Average number of seconds to run all queries: 0.012 seconds
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Minimum number of seconds to run all queries: 0.010 seconds
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Maximum number of seconds to run all queries: 0.018 seconds
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Number of clients running queries: 3
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Average number of queries per client: 1
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