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68 lines
1.9 KiB
Markdown
68 lines
1.9 KiB
Markdown
## ClickHouse performance tests
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This directory contains `.xml`-files with performance tests.
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### How to write a performance test
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First of all please check that existing tests don't cover your case. If there are no such tests then you can write your own test.
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Test template:
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``` xml
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<test>
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<!-- Optional: Specify settings -->
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<settings>
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<max_threads>1</max_threads>
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<max_insert_threads>1</max_insert_threads>
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</settings>
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<!-- Optional: Variable substitutions, can be referenced to by curly brackets {} and used in any queries -->
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<substitutions>
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<substitution>
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<name>x</name>
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<values>
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<value>10</value>
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<value>50</value>
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</values>
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</substitution>
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<substitution>
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<name>y</name>
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<values>
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<value>5</value>
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<value>8</value>
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</values>
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</substitution>
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</substitutions>
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<!-- Optional: Table setup queries -->
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<create_query>CREATE TABLE tab1 [..]</create_query>
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<create_query>CREATE TABLE tab2 [..]</create_query>
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<!-- Optional: Table population queries -->
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<fill_query>INSERT INTO tab1 [...]</fill_query>
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<fill_query>INSERT INTO tab2 [...]</fill_query>
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<!-- Benchmark queries -->
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<query>SELECT [...] WHERE col BETWEEN {x} AND {y}</query>
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<query>SELECT [...]</query>
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<query>SELECT [...]</query>
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<!-- Optional: Table teardown queries -->
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<drop_query>DROP TABLE tab1</drop_query>
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<drop_query>DROP TABLE tab2</drop_query>
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</test>
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```
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If your test takes more than 10 minutes, please, add tag `long` to have an opportunity to run all tests and skip long ones.
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### How to run performance test
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TODO
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### How to validate single test
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```
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pip3 install clickhouse_driver scipy
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../../tests/performance/scripts/perf.py --runs 1 insert_parallel.xml
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```
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