From owner-freebsd-java@FreeBSD.ORG  Sat Jan 30 17:57:10 2010
Return-Path: <owner-freebsd-java@FreeBSD.ORG>
Delivered-To: freebsd-java@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 65014106566C
	for <freebsd-java@freebsd.org>; Sat, 30 Jan 2010 17:57:10 +0000 (UTC)
	(envelope-from pieter@degoeje.nl)
Received: from mx.utwente.nl (mx3.utsp.utwente.nl [130.89.2.14])
	by mx1.freebsd.org (Postfix) with ESMTP id DBF198FC21
	for <freebsd-java@freebsd.org>; Sat, 30 Jan 2010 17:57:09 +0000 (UTC)
Received: from nox.student.utwente.nl (nox.student.utwente.nl [130.89.165.91])
	by mx.utwente.nl (8.12.10/SuSE Linux 0.7) with ESMTP id
	o0UHGHHH014429
	for <freebsd-java@freebsd.org>; Sat, 30 Jan 2010 18:16:17 +0100
From: Pieter de Goeje <pieter@degoeje.nl>
To: freebsd-java@freebsd.org
Date: Sat, 30 Jan 2010 18:16:16 +0100
User-Agent: KMail/1.9.10
MIME-Version: 1.0
Content-Type: text/plain;
  charset="us-ascii"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <201001301816.16987.pieter@degoeje.nl>
X-UTwente-MailScanner-Information: Scanned by MailScanner. Contact
	icts.servicedesk@utwente.nl for more information.
X-UTwente-MailScanner: Found to be clean
X-UTwente-MailScanner-From: pieter@degoeje.nl
X-Spam-Status: No
Subject: OpenJDK 6/7 kqueue based NIO provider
X-BeenThere: freebsd-java@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Porting Java to FreeBSD <freebsd-java.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-java>,
	<mailto:freebsd-java-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-java>
List-Post: <mailto:freebsd-java@freebsd.org>
List-Help: <mailto:freebsd-java-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-java>,
	<mailto:freebsd-java-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 30 Jan 2010 17:57:10 -0000

Hi,

I'm looking for a kqueue based implementation of java.nio.Selector.

If it doesn't exit yet, I'll have to create it myself. I've already looked at 
the code for the EPoll provider and it doesn't seem too hard to create a 
kqueue based one. I will have to figure out how to interface with native 
libraries though.

The reason is obviously performance. I created a simple nio based echo server 
and a kqueue client in C, which creates about 50K simultaneous connections. 
Java is completely CPU bound and can only reply to about 100 connections per 
second due to immense poll(2) overhead, and it takes ages for all 50K 
connections to be accepted by the server.

Input welcome :-)

--
Pieter