Re: [RFC PATCH] LTTng relay buffer allocation, read, write

Martin Bligh
2008-09-30T17:23:48Z

On Tue, Sep 30, 2008 at 10:22 AM, Martin Bligh <mbligh@google.com> wrote:
>> A 4 byte dataless payload is useless anyway.
>
> Not at all convinced that's true - we used it for lots of things.
> Start and end of irq event is one frequent example.
>
> Also, in a compact mode, we can record start and end of
> syscalls like this (without parameters).

Ah, sorry, maybe I misread this. No data with no event ids, etc
is fairly useless. 4 bytes data including space to record event ids is OK.