From owner-freebsd-realtime Sun Sep 30 12:12:50 2001 Delivered-To: freebsd-realtime@freebsd.org Received: from meta.lo-res.org (meta.lo-res.org [195.58.189.92]) by hub.freebsd.org (Postfix) with ESMTP id E98AD37B403 for ; Sun, 30 Sep 2001 12:12:41 -0700 (PDT) Received: from there (uxoxqv@www.fastforward.at [62.116.8.2]) by meta.lo-res.org (8.11.6/8.11.6) with SMTP id f8UJCkw02970; Sun, 30 Sep 2001 21:12:47 +0200 (CEST) (envelope-from aaron@lo-res.org) Message-Id: <200109301912.f8UJCkw02970@meta.lo-res.org> Content-Type: text/plain; charset="iso-8859-1" From: aaron To: Bart Kus Subject: Re: Ping? Date: Sun, 30 Sep 2001 21:12:32 +0200 X-Mailer: KMail [version 1.3] References: <200109300958.44992@EO> <200109301738.f8UHcnw02586@meta.lo-res.org> <200109301352.3464@EO> In-Reply-To: <200109301352.3464@EO> Cc: realtime@freebsd.org MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-realtime@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sunday 30 September 2001 20:54, you wrote: > On Sunday 30 September 2001 12:38, you wrote: > > Well, I am lurking around :) > > It seems the bulk of my concerns have come out in hackers@freebsd.org. If > you like you can browse the messages there and maybe tell me if bsd CAN > indeed give me satisfactory RT response within, say, 100us max? Am I > totally dreaming? > hm, did not find it there. but 100usec seems very far fetched. Even with posix realtime extension. I assume you want something like: do smthg wait x microsecs do smthg problem is: wait x microsecs never waits x microsecs but almost always more. even with realtime priority / -signals / whatever. that's at least my experience. If I am wrong please correct me. aaron. > --Bart -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (FreeBSD) Comment: For info see http://www.gnupg.org iD8DBQE7t26j6bxke2EQxE0RAsXmAJ9Tc4UoR/jYlHkuquwyLuUWCq/QYQCfSh0U lwVa0Z44q/9kYUiSNTdCDwE= =/RPJ -----END PGP SIGNATURE----- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-realtime" in the body of the message