From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tim Blechmann Subject: rt file i/o Date: Wed, 04 Nov 2009 16:25:35 +0100 Message-ID: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigC2141DE75949BEBA07BAEA98" To: linux-rt-users@vger.kernel.org Return-path: Received: from lo.gmane.org ([80.91.229.12]:44194 "EHLO lo.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756297AbZKDP0G (ORCPT ); Wed, 4 Nov 2009 10:26:06 -0500 Received: from list by lo.gmane.org with local (Exim 4.50) id 1N5hkQ-0002Sm-5z for linux-rt-users@vger.kernel.org; Wed, 04 Nov 2009 16:26:10 +0100 Received: from 85-127-249-188.dynamic.xdsl-line.inode.at ([85.127.249.188]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 04 Nov 2009 16:26:10 +0100 Received: from tim by 85-127-249-188.dynamic.xdsl-line.inode.at with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 04 Nov 2009 16:26:10 +0100 Sender: linux-rt-users-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigC2141DE75949BEBA07BAEA98 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable hi all, having read the howto build an rt-application, i am trying to think of a way to handle disk i/o in my application. the howto suggest to avoid file i/o in non-rt helper threads, but to move them to another process. while the howto suggests using network socket, i'm curious, if other ipc primitives like shared memory would give better throughput? or would i experience any issues, like is it possible to lock shared memory to physical ram? thanks, tim --=20 tim@klingt.org http://tim.klingt.org Art is either a complaint or do something else John Cage quoting Jasper Johns --------------enigC2141DE75949BEBA07BAEA98 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkrxnPUACgkQdL+4qsZfVsvALACdFtpWzgdLi/aeNBJO0jTVtGro cDwAnAjBE8LKslAmW4lWwORH+z1XtKqR =tm5N -----END PGP SIGNATURE----- --------------enigC2141DE75949BEBA07BAEA98--