From: | "j(dot)random(dot)programmer" <javadesigner(at)yahoo(dot)com> |
---|---|
To: | Oliver Jowett <oliver(at)opencloud(dot)com> |
Cc: | pgsql-jdbc(at)postgresql(dot)org |
Subject: | Re: Some more profiling hotspots |
Date: | 2006-08-24 03:03:42 |
Message-ID: | 20060824030342.82518.qmail@web32003.mail.mud.yahoo.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-jdbc |
Oliver:
> j.random.programmer wrote:
> > As per my previous email, the biggest JDBC driver
> > bottleneck is in:
>
Just some PreparedStatements to get data from the
databa,
run under JProfiler. JProfiler really rocks (I have no
financial interest
in the company, just a very satisfied user, its waaay
better than
JProbe/OptimizeIt used to be, many years ago).
At the core, the code simply uses connections are
pooled. I
consistently get very high usage, via new string
creation in the:
org.postgresql.core.Encoding.decode
method.
If you don't have JProfiler yourself, I'd be happy to
profile any other
code you want to send my way.
Of course, I should try to grok the driver code and
post a patch but
that's probably beyond my ability... :-)
Best regards,
--j
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