Re: [PATCH 0/6] perf core: Read from overwrite ring buffer

[Wangnan (F)]

On 2016/1/20 1:42, Alexei Starovoitov wrote:
> On Tue, Jan 19, 2016 at 11:16:44AM +0000, Wang Nan wrote:
> > This patchset introduces two methods to support reading from overwrite.
> >
> >   1) Tailsize: write the size of an event at the end of it
> >   2) Backward writing: write the ring buffer from the end of it to the
> >      beginning.
> what happend with your other idea of moving the whole header to the end?
> That felt better than either of these options.

I'll try it today. However, putting all of the three together is
not as easy as this patchset.

Thank you.