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Re: [cp-patches] Speed up java.nio.ByteBuffer

From: Tom Tromey
Subject: Re: [cp-patches] Speed up java.nio.ByteBuffer
Date: 13 Aug 2004 17:31:20 -0600
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3.50

>>>>> "Florian" == Florian Weimer <address@hidden> writes:

Florian> On GCJ, this patch results in a 18% improvement in speed for
Florian> loading databases with Berkeley DB Java Edition.


Florian> Further improvements will require a new class for a read-only
Florian> byte buffer, so that the read-only flag can go.

It would be nice to hear what performance impact this has.

Florian> 2004-08-12  Florian Weimer  <address@hidden>
Florian>        * java/nio/ (put): New methods to speed up
Florian>        ByteBuffer put and array put operations.

Do we want/need similar changes to all the other *BufferImpl classes?

I hate to mention this, but would it make sense to generate these
classes by running sed on a template file, or something similar?  It
seems strange to keep patching 7 copies of the same code.

I know, this approach does make life harder for some folks,
e.g. Eclipse users (if any).  And perhaps Jeroen...?


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