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From: Paolo Bonzini <pbonzini@redhat.com>
To: Markus Armbruster <armbru@redhat.com>, "Denis V. Lunev" <den@openvz.org>
Cc: Peter Maydell <peter.maydell@linaro.org>,
	Luiz Capitulino <lcapitulino@redhat.com>,
	qemu-devel@nongnu.org, Stefan Hajnoczi <stefanha@redhat.com>,
	Pavel Butsykin <pbutsykin@virtuozzo.com>
Subject: Re: [Qemu-devel] What's the intended use of log.h logging?
Date: Fri, 16 Oct 2015 14:48:19 +0200	[thread overview]
Message-ID: <5620F213.1010908@redhat.com> (raw)
In-Reply-To: <87oafzdmck.fsf_-_@blackfin.pond.sub.org>



On 16/10/2015 14:33, Markus Armbruster wrote:
>    Looks like this is basically TCG with a couple of random LOG_UNIMP
>    and LOG_GUEST_ERROR thrown in.  It's definitely not a general purpose
>    QEMU log in its current state.

I think these could become error_report.

Some others (e.g. LOG_IOPORT) can be removed.

LOG_MMU seems to be mostly a ppc thing, could also become a tracepoint.
 Likewise for LOG_PCALL and perhaps LOG_INT.

However, we should at the same time add some functionality to enable
tracepoints more easily, and perhaps enable the stderr tracing backend
by default upstream (downstream can enable stderr+stap; or if they care
a lot about performance disable stderr in favor of stap only).

Paolo

  reply	other threads:[~2015-10-16 12:48 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-15  7:30 [Qemu-devel] [PATCH 0/3] QEMU logging improvements Denis V. Lunev
2015-10-15  7:30 ` [Qemu-devel] [PATCH 1/3] log: improve performance of qemu_log and qemu_log_mask if disabled Denis V. Lunev
2015-10-15 17:23   ` Alex Bennée
2015-10-15 17:40     ` Denis V. Lunev
2015-10-15 18:36       ` Alex Bennée
2015-10-16  7:17   ` Markus Armbruster
2015-10-16  7:45     ` Denis V. Lunev
2015-10-16 11:02       ` Markus Armbruster
2015-10-16 11:08         ` Denis V. Lunev
2015-10-15  7:30 ` [Qemu-devel] [PATCH 2/3] log: report hmp/qmp command and qmp event Denis V. Lunev
2015-10-16  7:34   ` Markus Armbruster
2015-10-16  9:51     ` Pavel Butsykin
2015-10-16 12:35       ` Markus Armbruster
2015-10-16 12:33   ` [Qemu-devel] What's the intended use of log.h logging? (was: [PATCH 2/3] log: report hmp/qmp command and qmp event) Markus Armbruster
2015-10-16 12:48     ` Paolo Bonzini [this message]
2015-10-16 12:54       ` [Qemu-devel] What's the intended use of log.h logging? Peter Maydell
2015-10-16 13:00         ` Paolo Bonzini
2015-10-16 13:38           ` Denis V. Lunev
2015-10-16 13:26         ` Daniel P. Berrange
2015-10-16 13:29           ` Peter Maydell
2015-10-16 13:30             ` Paolo Bonzini
2015-10-16 13:36               ` Peter Maydell
2015-10-16 14:17                 ` Paolo Bonzini
2015-10-16 14:31                   ` Peter Maydell
2015-10-16 15:27                     ` Paolo Bonzini
2015-10-19 13:17                     ` Markus Armbruster
2015-10-19 13:19                       ` Paolo Bonzini
2015-10-19 13:54                       ` Peter Maydell
2015-10-16 12:51     ` [Qemu-devel] What's the intended use of log.h logging? (was: [PATCH 2/3] log: report hmp/qmp command and qmp event) Peter Maydell
2015-10-19 14:29       ` [Qemu-devel] What's the intended use of log.h logging? Markus Armbruster
2015-10-19 14:41         ` Peter Maydell
2015-10-19 16:57           ` Dr. David Alan Gilbert
2015-10-19 17:02         ` Dr. David Alan Gilbert
2015-10-20 13:11         ` Kevin Wolf
2015-10-16 14:36     ` [Qemu-devel] What's the intended use of log.h logging? (was: [PATCH 2/3] log: report hmp/qmp command and qmp event) Alex Bennée
2015-10-19 14:52       ` [Qemu-devel] What's the intended use of log.h logging? Markus Armbruster
2015-10-19 14:57         ` Peter Maydell
2015-10-21 10:41     ` [Qemu-devel] What's the intended use of log.h logging? (was: [PATCH 2/3] log: report hmp/qmp command and qmp event) Stefan Hajnoczi
2015-10-21 11:10       ` [Qemu-devel] What's the intended use of log.h logging? Denis V. Lunev
2015-10-21 12:22       ` [Qemu-devel] What's the intended use of log.h logging? (was: [PATCH 2/3] log: report hmp/qmp command and qmp event) Peter Maydell
2015-10-22 12:26         ` Stefan Hajnoczi
2015-10-22 13:05           ` [Qemu-devel] What's the intended use of log.h logging? Paolo Bonzini
2015-10-15  7:30 ` [Qemu-devel] [PATCH 3/3] log: adds a timestamp to each log entry Denis V. Lunev
2015-10-16  7:49   ` Markus Armbruster
2015-10-16  9:55     ` Pavel Butsykin
2015-10-16 11:33       ` Markus Armbruster
2015-10-15 14:49 ` [Qemu-devel] [PATCH 0/3] QEMU logging improvements Kashyap Chamarthy
2015-10-15 15:18   ` Pavel Butsykin
2015-10-15 16:02     ` Kashyap Chamarthy
2015-10-26  9:16 ` Markus Armbruster

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