Return-Path: Delivered-To: apmail-jakarta-tomcat-user-archive@apache.org Received: (qmail 78469 invoked from network); 4 Oct 2002 12:16:44 -0000 Received: from unknown (HELO nagoya.betaversion.org) (192.18.49.131) by daedalus.apache.org with SMTP; 4 Oct 2002 12:16:44 -0000 Received: (qmail 8286 invoked by uid 97); 4 Oct 2002 12:16:07 -0000 Delivered-To: qmlist-jakarta-archive-tomcat-user@jakarta.apache.org Received: (qmail 8162 invoked by uid 97); 4 Oct 2002 12:16:04 -0000 Mailing-List: contact tomcat-user-help@jakarta.apache.org; run by ezmlm Precedence: bulk List-Unsubscribe: List-Subscribe: List-Help: List-Post: List-Id: "Tomcat Users List" Reply-To: "Tomcat Users List" Delivered-To: mailing list tomcat-user@jakarta.apache.org Received: (qmail 7993 invoked by uid 98); 4 Oct 2002 12:16:01 -0000 X-Antivirus: nagoya (v4218 created Aug 14 2002) Message-ID: <3D9D8626.D7279E7E@labs.gte.com> Date: Fri, 04 Oct 2002 08:14:30 -0400 From: peter lin X-Mailer: Mozilla 4.7 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: Tomcat Users List Subject: tomcat 4.1.12 with jdk1.4.1 on solaris References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Spam-Rating: daedalus.apache.org 1.6.2 0/1000/N X-Spam-Rating: daedalus.apache.org 1.6.2 0/1000/N For those are thinking about switching from jdk 1.3.1 or jdk 1.4.0 to the latest, so far my benchmarks have shown jdk1.4.1 to be better. This is by no means conclusive proof, but the improvements to new String(), garbage collection and nio show measurable improvement. One particular thing I see is the garbage collection processes are more consistent and result in lower memory consumption. The same exact webapp with jdk 1.4.0 show 20ms difference. The variance of the response also appears to considerably lower. With jdk 1.4.0, the deviation in Jmeter is approximately 1/3 the average. whereas with jdk 1.4.1 it is 1/4 of the average. though others might find it interesting. peter -- To unsubscribe, e-mail: For additional commands, e-mail: