On Wed 15-05-19 10:51:58, Oleksandr Natalenko wrote: > On Wed, May 15, 2019 at 10:33:21AM +0200, Michal Hocko wrote: > > > For my current setup with 2 Firefox instances I get 100 to 200 MiB saved > > > for the second instance depending on the amount of tabs. > > > > What does prevent Firefox (an opensource project) to be updated to use > > the explicit merging? > > This was rather an example of a big project. Other big projects may be > closed source, of course. Again, specific examples are usually considered a much better justification than "something might use the feature". [...] > > OK, this makes more sense. Please note that there are other people who > > would like to see certain madvise operations to be done on a remote > > process - e.g. to allow external memory management (Android would like > > to control memory aging so something like MADV_DONTNEED without loosing > > content and more probably) and potentially other madvise operations. > > Or maybe we need a completely new interface other than madvise. > > I didn't know about those intentions. Could you please point me to a > relevant discussion so that I can check the details? I am sorry I do not have any specific links to patches under discussion. We have discussed that topic at LSFMM this year (https://lwn.net/Articles/787217/) and Google guys should be sending something soon. -- Michal Hocko SUSE Labs
