Advice on filtering lttng traces

Hello,

I want to do especial postprocessing with LTTV, and I wanted to know which would be the best way to do it (I mean, develop a module or simply use existing filtering sollutions). What I wanted to do is simply merge different process to one (for example group all process linked to the OS, ...), in order to have a clearly view of the flow. I read some example of creating a module for LTTV but I don't know if it's the best (more efficient) way to do.

Thanks.

Best regards, Mikaël.

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