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Re: [Qemu-devel] [PATCH v7 11/13] trace-state: [simple] disable all trac
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH v7 11/13] trace-state: [simple] disable all trace points by default |
Date: |
Wed, 31 Aug 2011 11:21:13 +0100 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Thu, Aug 25, 2011 at 09:18:43PM +0200, Lluís wrote:
> Note that this refers to the backend-specific state (whether the output must
> be
> generated), not the event "disabled" property (which always uses the "nop"
> backend).
>
> Signed-off-by: Lluís Vilanova <address@hidden>
> ---
> scripts/tracetool | 9 ++-------
> trace-events | 3 ---
> 2 files changed, 2 insertions(+), 10 deletions(-)
At this point the quickstart in docs/tracing.txt may be confusing since
QEMU runs as normal but no events are recorded :). Please add a step
before launching QEMU that creates a simple events file, like:
bdrv_aio_readv
bdrv_aio_writev
This way people looking at the quickstart know they need to choose
events that they would like to record and use -trace events=my-events.
Stefan
- [Qemu-devel] [PATCH v7 01/13] [simple] Include qemu-timer-common.o in trace-obj-y, (continued)
- [Qemu-devel] [PATCH v7 01/13] [simple] Include qemu-timer-common.o in trace-obj-y, Lluís, 2011/08/25
- [Qemu-devel] [PATCH v7 02/13] trace: [configure] rename CONFIG_*_TRACE into CONFIG_TRACE_*, Lluís, 2011/08/25
- [Qemu-devel] [PATCH v7 03/13] trace: [make] replace 'ifeq' with values in CONFIG_TRACE_*, Lluís, 2011/08/25
- [Qemu-devel] [PATCH v7 04/13] trace: move backend-specific code into the trace/ directory, Lluís, 2011/08/25
- [Qemu-devel] [PATCH v7 05/13] trace: avoid conditional code compilation during option parsing, Lluís, 2011/08/25
- [Qemu-devel] [PATCH v7 06/13] trace: generalize the "property" concept in the trace-events file, Lluís, 2011/08/25
- [Qemu-devel] [PATCH v7 11/13] trace-state: [simple] disable all trace points by default, Lluís, 2011/08/25
- Re: [Qemu-devel] [PATCH v7 11/13] trace-state: [simple] disable all trace points by default,
Stefan Hajnoczi <=
- [Qemu-devel] [PATCH v7 12/13] trace-state: [stderr] add support for dynamically enabling/disabling events, Lluís, 2011/08/25
- [Qemu-devel] [PATCH v7 13/13] trace: enable all events, Lluís, 2011/08/25
- [Qemu-devel] [PATCH v7 08/13] trace-state: always compile support for controlling and querying trace event states, Lluís, 2011/08/25
- [Qemu-devel] [PATCH v7 09/13] trace-state: add "-trace events" argument to control initial state, Lluís, 2011/08/25
- [Qemu-devel] [PATCH v7 07/13] trace-state: separate trace event control and query routines from the simple backend, Lluís, 2011/08/25
- [Qemu-devel] [PATCH v7 10/13] trace-state: always use the "nop" backend on events with the "disable" keyword, Lluís, 2011/08/25
- Re: [Qemu-devel] [PATCH v7 00/13] trace-state: make the behaviour of "disable" consistent across all backends, Stefan Hajnoczi, 2011/08/31
- Re: [Qemu-devel] [PATCH v7 00/13] trace-state: make the behaviour of "disable" consistent across all backends, Stefan Hajnoczi, 2011/08/31