On Wed 14-02-24 10:01:14, Kent Overstreet wrote: > On Wed, Feb 14, 2024 at 03:46:33PM +0100, Michal Hocko wrote: > > On Wed 14-02-24 01:20:20, Johannes Weiner wrote: > > [...] > > > I agree we should discuss how the annotations are implemented on a > > > technical basis, but my take is that we need something like this. > > > > I do not think there is any disagreement on usefulness of a better > > memory allocation tracking. At least for me the primary problem is the > > implementation. At LFSMM last year we have heard that existing tracing > > infrastructure hasn't really been explored much. Cover letter doesn't > > really talk much about those alternatives so it is really hard to > > evaluate whether the proposed solution is indeed our best way to > > approach this. > > Michal, we covered this before. It is a good practice to summarize previous discussions in the cover letter. Especially when there are different approaches discussed over a longer time period or when the topic is controversial. I do not see anything like that here. Neither for the existing tracing infrastructure, page owner nor performance concerns discussed before etc. Look, I do not want to nit pick or insist on formalisms but having those data points layed out would make any further discussion much more smooth. -- Michal Hocko SUSE Labs