Re: [PATCH v5 13/17] perf: Support deferred user callchains

[Steven Rostedt]

On Thu, 8 May 2025 14:49:59 -0400
Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> wrote:

> AFAIR, the cookie method generates the cookie by combining the cpu
> number with a per-cpu count.
> 
> This ensures that there are not two cookies emitted at the same time
> from two CPUs that have the same value by accident.
> 
> How would the timestamp method prevent this ?

Do we care? It only needs to be unique per pid doesn't it?

-- Steve