From owner-freebsd-hackers Tue Jun 25 15: 9:32 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from apollo.backplane.com (apollo.backplane.com [216.240.41.2]) by hub.freebsd.org (Postfix) with ESMTP id 328CF37B407 for ; Tue, 25 Jun 2002 15:09:20 -0700 (PDT) Received: from apollo.backplane.com (localhost [127.0.0.1]) by apollo.backplane.com (8.12.3/8.12.3) with ESMTP id g5PM9Jl1010544; Tue, 25 Jun 2002 15:09:19 -0700 (PDT) (envelope-from dillon@apollo.backplane.com) Received: (from dillon@localhost) by apollo.backplane.com (8.12.3/8.12.3/Submit) id g5PM9J79010543; Tue, 25 Jun 2002 15:09:19 -0700 (PDT) (envelope-from dillon) Date: Tue, 25 Jun 2002 15:09:19 -0700 (PDT) From: Matthew Dillon Message-Id: <200206252209.g5PM9J79010543@apollo.backplane.com> To: Alfred Perlstein Cc: Terry Lambert , Patrick Thomas , freebsd-hackers@FreeBSD.ORG Subject: Re: tunings for many httpds... References: <20020624151650.I68572-100000@utility.clubscholarship.com> <3D17D27A.11E82B2B@mindspring.com> <20020625022238.GH53232@elvis.mu.org> <3D17DBC1.351A8A35@mindspring.com> <20020625072509.GJ53232@elvis.mu.org> <3D18CDB2.151978F3@mindspring.com> <20020625210633.GQ53232@elvis.mu.org> Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG : :This is also the _default_ for how solaris manages sysv segments, :although it would be nice if we could get the OBJT_PHYS stuff to :use 4meg pages (unless someone already did that?)... : :Anyhow, I'm glad we corrected your misconception and we now have :a more accurate understanding of how this system works. : :-Alfred Even more importantly it would be nice if we could share compatible pmap pages, then we would have no need for 4MB pages... 50 mappings of the same shared memory segment would wind up using the same pmap pages as if only one mapping had been made. Such a feature would work for SysV shared memory and for mmap()s. I've looked at doing this off and on for two years but do not have a sufficient chunk of time available yet. -Matt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message