ClickHouse/dbms/tests/performance/general_purpose_hashes_on_UUID.xml

<test>

    <stop_conditions>
        <all_of>
            <iterations>3</iterations>
            <min_time_not_changing_for_ms>10000</min_time_not_changing_for_ms>
        </all_of>
        <any_of>
            <iterations>5</iterations>
            <total_time_ms>60000</total_time_ms>
        </any_of>
    </stop_conditions>


    <substitutions>
        <substitution>
           <name>hash_func</name>
           <values>
               <value>cityHash64</value>
               <value>farmHash64</value>
               <value>metroHash64</value>
               <value>murmurHash2_32</value>
               <value>murmurHash2_64</value>
               <value>murmurHash3_32</value>
               <value>murmurHash3_64</value>
               <value>javaHash</value>
               <value>hiveHash</value>
               <value>xxHash32</value>
               <value>xxHash64</value>
           </values>
        </substitution>
        <substitution>
           <name>value</name>
           <values>
               <value>materialize(toUUID('61f0c404-5cb3-11e7-907b-a6006ad3dba0'))</value>
               <value>generateUUIDv4()</value>
           </values>
        </substitution>
        <substitution>
           <name>value_slow</name>
           <values>
               <value>toDecimal128(number, 23)</value>
           </values>
        </substitution>
        <substitution>
           <name>table</name>
           <values>
               <value>zeros(100000000)</value>
               <value>zeros_mt(1000000000)</value>
           </values>
        </substitution>
        <substitution>
           <name>table_slow</name>
           <values>
               <value>numbers(1000000)</value>
               <value>numbers_mt(10000000)</value>
           </values>
        </substitution>
    </substitutions>

    <query>SELECT count() from {table} where not ignore({hash_func}({value}))</query>
    <query>SELECT count() from {table_slow} where not ignore({hash_func}({value_slow}))</query>
</test>