On Mon, Jun 08, 2020 at 10:58:12AM +0100, Richard W.M. Jones wrote: > On Sun, Jun 07, 2020 at 05:25:15PM -0600, Chris Murphy wrote: > > On Sun, Jun 7, 2020 at 2:48 PM David Kaufmann <astra@xxxxxxxx> wrote: > > > > > > On Sat, Jun 06, 2020 at 05:36:15PM -0600, Chris Murphy wrote: > > > > To me this sounds like too much dependency on swap. > > > > > > That's not what I meant, I wanted to emphasize the different values of > > > disk storage vs. RAM. As said in another email it doesn't matter at all > > > if there is 0% or 90% of disk swap usage, while RAM usage can be quite > > > essential. (This is in case swapped out stuff stays swapped out.) > > > > Inactive pages that are evicted long term, is a workload that I think > > would benefit from zswap instead. In that case you get the benefit of > > the memory cache for recently used anonymous pages that would > > otherwise result in "swap thrashing" and the "least recently used" > > pages are moved to disk based swap. > > Is this how it works? Previously it was stated that once a page is > swapped to a particular swap device, that's it. It would be nice if a > page which has been sitting in zram for a while could be swapped out > to the slower / cheaper / larger disk. It seems possible: https://www.kernel.org/doc/html/latest/admin-guide/blockdev/zram.html#writeback -- Tomasz Torcz “God, root, what's the difference?” tomek@xxxxxxxxxxxxxx “God is more forgiving.” _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
