In message <bad32602-c6a9-4a82-b0cb-148d313b9...@freebsd.org>, David Chisnall w rites: > On 19 Aug 2017, at 17:54, Cy Schubert <cy.schub...@komquats.com> wrote: > > > >> 3. should total swap be 1x 2x or some other multiple of RAM these days? > > > > Depends. If you're running some kind of database server or OLTP > > application. Some vendors recommend no swap whatsoever while others > > recommend some. What does your application vendor recommend? > > The main advantage of swap these days (on machines with that sort of amount o > f RAM) is to allow you to keep some file-backed memory objects in memory in p > reference to leaked (or very cold) heap memory.
Memory overcommitment and the working set of each address space determines how much and what is paged out. -- Cheers, Cy Schubert <cy.schub...@cschubert.com> FreeBSD UNIX: <c...@freebsd.org> Web: http://www.FreeBSD.org The need of the many outweighs the greed of the few. _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
