[ltt-dev] tracepoint layer and marker layer

Jiaying Zhang jiayingz at google.com
Wed Sep 17 18:07:43 EDT 2008

Hi Folks,

I have a general question about LTTng kernel code. As I understand, LTTng
adds an extra tracepoint layer between the traced subsystems and the
marker layer. The extra code added by the tracepoint layer seems to
noticeable overhead according to my measurements. I wonder whether it will
be more efficient and simpler if we let subsystems call the marker layer
Any thought?

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