On Tue, Sep 27, 2011 at 9:00 AM, Stefan Hajnoczi
wrote:
> SystemTap provides a "semaphore" that can optionally be tested before
> executing a trace event. The purpose of this mechanism is to skip
> expensive tracing code when the trace event is disabled.
>
> For example, some applications may hav
(2011/09/27 17:00), Stefan Hajnoczi wrote:
> SystemTap provides a "semaphore" that can optionally be tested before
> executing a trace event. The purpose of this mechanism is to skip
> expensive tracing code when the trace event is disabled.
>
> For example, some applications may have trace event
SystemTap provides a "semaphore" that can optionally be tested before
executing a trace event. The purpose of this mechanism is to skip
expensive tracing code when the trace event is disabled.
For example, some applications may have trace events that format or
convert strings for trace events. T