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| author | James Moger <james.moger@gmail.com> | 2011-08-17 13:30:40 -0400 |
|---|---|---|
| committer | James Moger <james.moger@gmail.com> | 2011-08-17 13:30:40 -0400 |
| commit | 05429c2cdf393730f17fb8fa51ee4b9e58e0a88f (patch) | |
| tree | 1c6e98a2913b4f0912318e49f72f930b985eb345 /docs/03_performance.mkd | |
| parent | 1734dc44d70391aeef26cacdf4d9f07c289e476e (diff) | |
| download | iciql-05429c2cdf393730f17fb8fa51ee4b9e58e0a88f.tar.gz iciql-05429c2cdf393730f17fb8fa51ee4b9e58e0a88f.zip | |
Renamed logger. Improved test suite. Added Apache Commons and DBCP.v0.7.0
Diffstat (limited to 'docs/03_performance.mkd')
| -rw-r--r-- | docs/03_performance.mkd | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/docs/03_performance.mkd b/docs/03_performance.mkd index 7df050a..12c07a1 100644 --- a/docs/03_performance.mkd +++ b/docs/03_performance.mkd @@ -9,7 +9,11 @@ Performance of iciql statement generation is not currently benchmarked. ### iciql+database performance comparison
-The following data was generated by running the iciql test suite. The suite is almost completely single-threaded. All Java databases are run in embedded *memory-only* mode through a JDBC connection.
+The following data was generated by running the *single-threaded* iciql test suite. All database connections are pooled and re-used within each execution of the test suite using [Apache Commons DBCP](http://commons.apache.org/dbcp).
+
+Connections are pooled to normalize embedded database performance with out-of-process database performance. Some of the Java embedded database configurations have a very high startup-time penalty. Notably, H2 is slow to open a database and its performance is substantially affected if connection pooling is not enabled to keep the embedded database open.
+
+All performance numbers include the combined overhead of iciql statement generation and JUnit 4 test framework execution so they are not bare-metal database metrics.
<pre>
%DBPERFORMANCE%
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