From owner-freebsd-hubs@FreeBSD.ORG Thu Feb 15 21:21:36 2007 Return-Path: X-Original-To: hubs@freebsd.org Delivered-To: freebsd-hubs@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 406E116A408 for ; Thu, 15 Feb 2007 21:21:36 +0000 (UTC) (envelope-from uxqacg@anlux.be) Received: from mail.connercreek.com (mail.connercreek.com [68.248.59.190]) by mx1.freebsd.org (Postfix) with SMTP id 491A513C478 for ; Thu, 15 Feb 2007 21:21:34 +0000 (UTC) (envelope-from uxqacg@anlux.be) Received: from hqdzwf ([96.60.69.91]) by mail.connercreek.com (8.13.2/8.13.2) with SMTP id l1FLNJlw017106; Thu, 15 Feb 2007 16:23:19 -0500 Message-ID: <000c01c75147$446fe460$5b453c60@hqdzwf> From: "Gilliam" To: Date: Thu, 15 Feb 2007 16:18:24 -0500 MIME-Version: 1.0 Content-Type: multipart/related; type="multipart/alternative"; boundary="----=_NextPart_000_0008_01C7511D.5B94FA60" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Subject: But a data race condition tends toproduce wrong values of the critical variable in an unpredictableway and makes the programmer confused about the program behavior. X-BeenThere: freebsd-hubs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "FreeBSD Distributions Hubs: mail sup ftp" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 Feb 2007 21:21:36 -0000 ------=_NextPart_000_0008_01C7511D.5B94FA60 Content-Type: text/plain; charset="windows-1250" Content-Transfer-Encoding: quoted-printable Archiving ControlsDepending on the environment under which you are = profilingWebLogic Servers, you may examine the data on the machineon = which it was recorded. Whilst coverage is a minimum criteria for = acceptanceof a training workload, having good coverage does not = necessarilymean that the training workload is ideal. Setting the Tool StateLockLint's state consists of the set of databases = loadedand the specified assertions. The mainthread is used for Java = initialization, and then becomes the user'sjava-program main thread; = additional user threads are created asneeded. After apost-doctoral = fellowship at the University of California, Berkeley, he worked on = operatingsystems and distributed services at Lawrence Berkeley = Laboratory. d script oncommand line. Each Express build has a main feature that the Sun Studio engineering = team ismaking available for the first time. Accesses to variables that = are not consistently protected byat least one lock, and accesses that = violate assertions about whichlocks protect them. cshrc source thefile in your current working directory, since others may = want to runLockLint on those same files, and they may not use the same = shell youdo. If you use a suffix rule, you will need to define . Since WebLogic = servers are Java-based, the -j on optionto collect is always needed. The = second reason why profile feedback is notmore widely used is that there = is a concern that a performance gainfor one workload may be at the = expense of the performance of anotherworkload. jar fileand the = collector. Profiling Startup Time of an Application Either mechanism can = be used to look at the startup time of anapplication. This loop takes each individual record and does whatever processing is = necessary. Read Darryl's blog at blogs. This routine shouldproduce a report of the results so far. 'COMMA' = changesthe default to use comma instead of a period, to print, for = example,123,456. 1, and were developed with LiYu Yi, of Boldtech = Systems, Dallas, TX. These snippets do two things, first of all they dothe same thing as the = original application would have done. Signal-control of Data CollectionThe Sun Studio Performance tools = provide mechanisms forcontrolling the data collection from an = application by using signals. At line 18, the group ID in each working = thread is comingfrom the routine argument arg which is a pointer passed = fro d -c date The following D script can be used to determine the = distribution ofuser functions in a particular subject process:The ufunc. = Simply accessing a variablewithout first acquiring the appropriate lock = can cause a data race. It is hard to see that there is a data raceproblem here by just looking = at the code. ------=_NextPart_000_0008_01C7511D.5B94FA60--