Re: increase size of number of possible tracing events

Anthony Eden <[email protected]>
Newsgroups org.kernel.vger.linux-trace-users
Message-ID <CAHMsQjV_uuhf6XPB7xype--V87_d7KeEgeks-7Qfw-2GVzLSrw@mail.gmail.com>
> I'm not sure having over 65535 different events is a good idea. Perhaps
> we should create a different type of uprobe that can be reused, as I'm
> sure you are not making each of these events record different data.
> Basically make it similar to the function tracing event, which is a
> single event that records the function that it traces, and not
> thousands of different individual events.
>
> Would something like that be helpful for you? It still requires a
> kernel change, but that is still possible.

You're right; the events record no data. Optimizing for this use-case
sounds reasonable.

It would be very helpful. The basic-block traces produced by this
mechanism allow us to identify bugs introduced by transformations we
make on the binaries. Kernel changes are no problem.

-Anthony
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