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Diffstat (limited to 'docs/03_performance.mkd')
| -rw-r--r-- | docs/03_performance.mkd | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/docs/03_performance.mkd b/docs/03_performance.mkd index 377d222..34e545c 100644 --- a/docs/03_performance.mkd +++ b/docs/03_performance.mkd @@ -9,10 +9,12 @@ Performance of iciql statement generation is not currently benchmarked. ### iciql+database performance comparison
-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). All tables are created as CACHED when the database distinguishes between CACHED and MEMORY tables.
+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 tables are created as CACHED when the database distinguishes between CACHED and MEMORY tables.
+
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.
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