From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=48893 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OGDPS-000315-EB for qemu-devel@nongnu.org; Sun, 23 May 2010 11:48:15 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OGDPQ-0000qw-Qa for qemu-devel@nongnu.org; Sun, 23 May 2010 11:48:14 -0400 Received: from fmmailgate03.web.de ([217.72.192.234]:34545) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OGDPQ-0000qk-Cr for qemu-devel@nongnu.org; Sun, 23 May 2010 11:48:12 -0400 Message-ID: <4BF94E3A.7010603@web.de> Date: Sun, 23 May 2010 17:48:10 +0200 From: Jan Kiszka MIME-Version: 1.0 References: <1274562503-10713-1-git-send-email-stefanha@linux.vnet.ibm.com> In-Reply-To: <1274562503-10713-1-git-send-email-stefanha@linux.vnet.ibm.com> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig654477F0A54F0570EF9683D0" Sender: jan.kiszka@web.de Subject: [Qemu-devel] Re: [RFC 0/5] Tracing backends List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Hajnoczi Cc: Anthony Liguori , qemu-devel@nongnu.org, kvm@vger.kernel.org, Prerna Saxena This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig654477F0A54F0570EF9683D0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable Stefan Hajnoczi wrote: > The following patches against qemu.git allow static trace events to be = declared > in QEMU. Trace events use a lightweight syntax and are independent of = the > backend tracing system (e.g. LTTng UST). >=20 > Supported backends are: > * my trivial tracer ("simple") > * LTTng Userspace Tracer ("ust") > * no tracer ("nop", the default) >=20 > The ./configure option to choose a backend is --trace-backend=3D. >=20 > Main point of this patchset: adding new trace events is easy and we can= switch > between backends without modifying the code. >=20 > Prerna: Would you like to add your tracing system as a backend? This w= ould be > similar to my patches to add "simple" and "ust" backend support. >=20 > Jan: Adding kernel marker backend support should be straightforward if = you are > interested. >=20 > These patches are also available at: > http://repo.or.cz/w/qemu/stefanha.git/shortlog/refs/heads/tracing >=20 Nice! Will have a closer look once timer permits, specifically to check how ftrace can be added to this. Looks indeed straightforward on first sight. Jan --------------enig654477F0A54F0570EF9683D0 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iEYEARECAAYFAkv5TjoACgkQitSsb3rl5xTcHQCg745fquylnxR0IS/RToJYxrPP u5sAmQFUBRkMYxsmlRl7Fb85Xd8dO/BD =mnnJ -----END PGP SIGNATURE----- --------------enig654477F0A54F0570EF9683D0--