Re: [PATCH v2 3/3] trace: Example of "centralized" recorder tracing

[Stefan Hajnoczi]

On Fri, Jun 26, 2020 at 06:27:06PM +0200, Christophe de Dinechin wrote:
> This is an example showing how the recorder can be used to have one
> "topic" covering multiple entries. Here, the topic is "lock".
> 
> Here are a few use cases:
> 
> - Checking locks:
>     RECORDER_TRACES=lock qemu
> - Graphic visualization of locks:
>     RECORDER_TRACES="lock=state,id" qemu &
>     recorder_scope state
>     <Hit the 't' key to toggle timing display>
>     <Hit the 'c' key to dump the screen data as CSV>
>     cat recorder_scope_data-1.csv
> 
> Signed-off-by: Christophe de Dinechin <dinechin@redhat.com>
> ---
>  util/qemu-thread-common.h | 7 +++++++
>  1 file changed, 7 insertions(+)

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

signature.asc
Description: PGP signature