From owner-freebsd-questions@FreeBSD.ORG Wed Jul 29 15:33:55 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E766910656E1 for ; Wed, 29 Jul 2009 15:33:55 +0000 (UTC) (envelope-from Ggatten@waddell.com) Received: from mailhost0.waddell.com (mailhost0.waddell.com [12.154.38.61]) by mx1.freebsd.org (Postfix) with ESMTP id 90F098FC25 for ; Wed, 29 Jul 2009 15:33:55 +0000 (UTC) (envelope-from Ggatten@waddell.com) Received: from mailhost2.waddell.com (mailhost2.waddell.com [10.1.10.30]) by mailhost0.waddell.com (8.13.8/8.13.8) with ESMTP id n6TFXiAd007394; Wed, 29 Jul 2009 10:33:44 -0500 (CDT) (envelope-from Ggatten@waddell.com) Received: from mailhost2.waddell.com (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id DE9461BE0BF; Wed, 29 Jul 2009 10:33:43 -0500 (CDT) Received: from wadpexf0.waddell.com (wadpexf0.waddell.com [192.168.204.24]) by mailhost2.waddell.com (Postfix) with ESMTP id BDB851BE0AE; Wed, 29 Jul 2009 10:33:43 -0500 (CDT) Received: from WADPEXV0.waddell.com ([192.168.204.25]) by wadpexf0.waddell.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 29 Jul 2009 10:33:43 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Date: Wed, 29 Jul 2009 10:33:11 -0500 Message-ID: <70C0964126D66F458E688618E1CD008A0793F25C@WADPEXV0.waddell.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Diablo JDK threads implementation Thread-Index: AcoQX0wMTm+02060RNCtUxXAeAY6AwAAldnw References: From: "Gary Gatten" To: "Peter Steele" , X-OriginalArrivalTime: 29 Jul 2009 15:33:43.0422 (UTC) FILETIME=[F48CC9E0:01CA1061] Cc: Subject: RE: Diablo JDK threads implementation X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Jul 2009 15:33:56 -0000 For fun you could try mapping to a different thread library with libmap.conf -----Original Message----- From: owner-freebsd-questions@freebsd.org [mailto:owner-freebsd-questions@freebsd.org] On Behalf Of Peter Steele Sent: Wednesday, July 29, 2009 10:20 AM To: freebsd-questions@freebsd.org Subject: Diablo JDK threads implementation We've developed a server platform around FreeBSD 7.0 consisting of several applications written in C and one primary application written in Java (JDK 1.6). We're seeing cases in some of ouor stress tests where some threads in our JAVA application appear to get no CPU time for extended periods of time (sometimes over a minute), even though the box has lots of idle time available and all of the C threads are running without a glitch. We thought originally it might be memory related and the GC was kicking in and freezing the JDK. That's not the case though, and in fact the memory footprint of the Java application is very small.=20 =20 I know I've read that some ports of Java do not always use native threads for the JDK thread model. Does anyone know the story with the Diablo JDK port? Is there another explanation what might be causing this problem? =20 _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
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