ClickHouse/tests/performance/cpu_synthetic.xml

<test>

<!-- This performance test can test various details of CPU, cache and memory performance.
     Note: it is incomplete.
  -->

<!-- Non-crypto hash function for strings.
SearchPhrase is notable as only 6.8% of the strings are non-empty. The average length of non-empty string is 47 bytes.
URL is non empty and quite long - the average length is 77 bytes.
PageCharset is non empty and quite short - the average length is just 6.2 bytes.
-->
<query>SELECT count() FROM hits_10m_single WHERE NOT ignore(cityHash64(SearchPhrase)) SETTINGS max_threads = 1</query>
<query>SELECT count() FROM hits_100m_single WHERE NOT ignore(cityHash64(SearchPhrase))</query>
<query>SELECT count() FROM hits_10m_single WHERE NOT ignore(farmHash64(SearchPhrase)) SETTINGS max_threads = 1</query>
<query>SELECT count() FROM hits_100m_single WHERE NOT ignore(farmHash64(SearchPhrase))</query>
<query>SELECT count() FROM hits_10m_single WHERE NOT ignore(metroHash64(SearchPhrase)) SETTINGS max_threads = 1</query>
<query>SELECT count() FROM hits_100m_single WHERE NOT ignore(metroHash64(SearchPhrase))</query>
<query>SELECT count() FROM hits_10m_single WHERE NOT ignore(cityHash64(URL)) SETTINGS max_threads = 1</query>
<query>SELECT count() FROM hits_100m_single WHERE NOT ignore(cityHash64(URL))</query>
<query>SELECT count() FROM hits_10m_single WHERE NOT ignore(cityHash64(PageCharset)) SETTINGS max_threads = 1</query>
<query>SELECT count() FROM hits_100m_single WHERE NOT ignore(cityHash64(PageCharset))</query>

<!-- A crypto hash function for strings. -->
<query>SELECT count() FROM hits_10m_single WHERE NOT ignore(sipHash64(SearchPhrase)) SETTINGS max_threads = 1</query>
<query>SELECT count() FROM hits_100m_single WHERE NOT ignore(sipHash64(SearchPhrase))</query>
<query>SELECT count() FROM hits_100m_single WHERE NOT ignore(MD5(SearchPhrase))</query>
<query>SELECT count() FROM hits_10m_single WHERE NOT ignore(sipHash64(URL)) SETTINGS max_threads = 1</query>
<query>SELECT count() FROM hits_100m_single WHERE NOT ignore(sipHash64(URL))</query>

<!-- Substring search. -->
<query>SELECT count() FROM hits_10m_single WHERE URL LIKE '%metrika%' SETTINGS max_threads = 1</query>
<query>SELECT count() FROM hits_100m_single WHERE URL LIKE '%metrika%'</query>

<!-- Sophisticated substring search. -->
<query>SELECT count() FROM hits_10m_single WHERE positionCaseInsensitiveUTF8(URL, 'новости') != 0 SETTINGS max_threads = 1</query>
<query>SELECT count() FROM hits_100m_single WHERE positionCaseInsensitiveUTF8(URL, 'новости') != 0</query>

<!-- Regexp matching. -->
<query>SELECT count() FROM hits_10m_single WHERE match(URL, '^https?://(?:www\\.)?metri[kc]a\\.yandex\\.(?:ru|com|com\\.tr|ua|by|kz)/.+?2014') SETTINGS max_threads = 1</query>
<query>SELECT count() FROM hits_100m_single WHERE match(URL, '^https?://(?:www\\.)?metri[kc]a\\.yandex\\.(?:ru|com|com\\.tr|ua|by|kz)/.+?2014')</query>

<!-- Complex aggregation. -->
<query>SELECT SearchEngineID, SearchPhrase, RegionID FROM hits_10m_single GROUP BY SearchEngineID, SearchPhrase, RegionID ORDER BY count() DESC LIMIT 10 SETTINGS max_threads = 1</query>
<query>SELECT SearchEngineID, SearchPhrase, RegionID FROM hits_100m_single GROUP BY SearchEngineID, SearchPhrase, RegionID ORDER BY count() DESC LIMIT 10</query>

<!-- DateTime processing function. -->
<query>SELECT count() FROM hits_10m_single WHERE NOT ignore(toMonday(EventTime)) SETTINGS max_threads = 1</query>

<!-- URL function. -->
<query>SELECT count() FROM hits_10m_single WHERE NOT ignore(cutQueryString(URL)) SETTINGS max_threads = 1</query>
<query>SELECT count() FROM hits_100m_single WHERE NOT ignore(cutQueryString(URL))</query>

<!-- Various quantile estimation algorithms. -->
<query>SELECT quantilesIf(0.5, 0.9)(SendTiming, SendTiming > 0) FROM hits_100m_single SETTINGS max_threads = 1</query>
<query>SELECT quantilesTimingIf(0.5, 0.9)(SendTiming, SendTiming > 0) FROM hits_100m_single SETTINGS max_threads = 1</query>
<query>SELECT quantilesExactIf(0.5, 0.9)(SendTiming, SendTiming > 0) FROM hits_100m_single SETTINGS max_threads = 1</query>
<query>SELECT quantilesTDigestIf(0.5, 0.9)(SendTiming, SendTiming > 0) FROM hits_100m_single SETTINGS max_threads = 1</query>

<!-- Various cardinality estimation algorithms. -->
<query>SELECT uniq(UserID) FROM hits_10m_single SETTINGS max_threads = 1</query>
<query>SELECT uniq(UserID) FROM hits_100m_single</query>
<query>SELECT uniqCombined(17)(UserID) FROM hits_10m_single SETTINGS max_threads = 1</query>
<query>SELECT uniqCombined(17)(UserID) FROM hits_100m_single</query>
<query>SELECT uniqExact(UserID) FROM hits_10m_single SETTINGS max_threads = 1</query>
<query>SELECT uniqExact(UserID) FROM hits_100m_single</query>

<!-- Something slightly more like to a real query. -->
<query>SELECT RegionID, uniq(UserID) FROM hits_10m_single GROUP BY RegionID SETTINGS max_threads = 1</query>
<query>SELECT RegionID, uniq(UserID) FROM hits_100m_single GROUP BY RegionID</query>

<!-- Read and decompress large columns. -->
<query>SELECT count() FROM hits_10m_single WHERE NOT ignore(Referer, URL, Title) SETTINGS max_threads = 1</query>
<query>SELECT count() FROM hits_10m_single WHERE NOT ignore(Referer, URL, Title)</query>

</test>