Re: JDBC Performance is no where near .NET performance (JDBC 1.2 against mssql2008)

Hi again,

We have identified an issue with calls to Logging.getLogger possibly being
blocked/serialized. That might account for what you are seeing with
multiple threads.

We are also seeing an issue with getString/getObject on CHAR/VARCHAR
columns, which may be evident if you have many such columns in your table
schema.

Both of these issues will be addressed in the upcoming technology preview
of the v2.0 driver, due out next month. I'd like for you to give it a try
when it comes out and let me know how it works for you.

In the mean time, if you like, you can send to me at davido at microsoft
dot com the table schema and/or profiling results from running the JVM with
the -Xagentlib:hprof=cpu=samples,depth=10,file=<path to file> option
enabled, I can try to figure out whether there are any other issues.

Thanks again,
--David

.

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