From owner-freebsd-questions Fri Apr 5 8:54:59 2002 Delivered-To: freebsd-questions@freebsd.org Received: from smtpout.mac.com (smtpout.mac.com [204.179.120.86]) by hub.freebsd.org (Postfix) with ESMTP id CFC1B37B404 for ; Fri, 5 Apr 2002 08:54:51 -0800 (PST) Received: from smtp-relay01.mac.com (server-source-si02 [10.13.10.6]) by smtpout.mac.com (8.12.1/8.10.2/1.0) with ESMTP id g35GsnrO029127 for ; Fri, 5 Apr 2002 08:54:49 -0800 (PST) Received: from asmtp02.mac.com ([10.13.10.66]) by smtp-relay01.mac.com (Netscape Messaging Server 4.15 relay01 Jun 21 2001 23:53:48) with ESMTP id GU3TNC00.HVB for ; Fri, 5 Apr 2002 08:54:48 -0800 Received: from localhost ([217.34.78.97]) by asmtp02.mac.com (Netscape Messaging Server 4.15 asmtp02 Jun 21 2001 23:53:48) with ESMTP id GU3TNB00.B0X for ; Fri, 5 Apr 2002 08:54:47 -0800 Date: Thu, 1 Jan 1970 00:30:05 +0000 Mime-Version: 1.0 (Apple Message framework v481) Content-Type: multipart/alternative; boundary=Apple-Mail-1-947148889 Subject: Darwin From: Tim Mawhinney To: freebsd-questions@FreeBSD.ORG Message-Id: <47E124FE-1DD6-11B2-940B-00039346738E@mac.com> X-Mailer: Apple Mail (2.481) Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG --Apple-Mail-1-947148889 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; format=flowed The Free BSD site boasts the features below:- * A merged virtual memory and filesystem buffer cache continuously tunes the amount of memory used for programs and the disk cache. As a result, programs receive both excellent memory management and high performance disk access, and the system administrator is freed from the task of tuning cache sizes. * Compatibility modules enable programs for other operating systems to run on FreeBSD, including programs for Linux, SCO UNIX, NetBSD, and BSD/OS. * Kernel Queues allow programs to respond more efficiently to a variety of asynchronous events including file and socket IO, improving application and system performance. * Accept Filters allow connection-intensive applications, such as web servers, to cleanly push part of their functionality into the operating system kernel, improving performance. * Soft Updates allows improved file system performance without sacrificing safety and reliability. It analyzes meta-data filesystem operations to avoid having to perform all of those operations synchronously. Instead, it maintains internal state about pending meta-data operations and uses this information to cache meta-data, rewrite meta-data operations to combine subsequent operations on the same files, and reorder meta-data operations so that they may be processed more efficiently. * Support for IPsec and IPv6 allows improved security in networks, and support for the next-generation Internet Protocol, IPv6. I just wondered how many of these features Darwin now includes due to its substantial FreeBSD lineage. Thanks, Tim Mawhinney. --Apple-Mail-1-947148889 Content-Transfer-Encoding: 7bit Content-Type: text/enriched; charset=US-ASCII Times New RomanThe Free BSD site boasts the features below:- * A merged virtual memory and filesystem buffer cache continuously tunes the amount of memory used for programs and the disk cache. As a result, programs receive both excellent memory management and high performance disk access, and the system administrator is freed from the task of tuning cache sizes. * Compatibility modules enable programs for other operating systems to run on FreeBSD, including programs for Linux, SCO UNIX, NetBSD, and BSD/OS. * Kernel Queues allow programs to respond more efficiently to a variety of asynchronous events including file and socket IO, improving application and system performance. * Accept Filters allow connection-intensive applications, such as web servers, to cleanly push part of their functionality into the operating system kernel, improving performance. * Soft Updates allows improved file system performance without sacrificing safety and reliability. It analyzes meta-data filesystem operations to avoid having to perform all of those operations synchronously. Instead, it maintains internal state about pending meta-data operations and uses this information to cache meta-data, rewrite meta-data operations to combine subsequent operations on the same files, and reorder meta-data operations so that they may be processed more efficiently. * Support for IPsec and IPv6 allows improved security in networks, and support for the next-generation Internet Protocol, IPv6. I just wondered how many of these features Darwin now includes due to its substantial FreeBSD lineage. Thanks, Tim Mawhinney. --Apple-Mail-1-947148889-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message