LSFMM: Page forking

Posted May 22, 2014 19:55 UTC (Thu) by daniel (guest, #3181)
Parent article: LSFMM: Page forking

..."page forking" ... is a response to the problems that led to the addition of "stable pages" to the kernel and the performance regressions that followed.

Almost. Actually, page forking is how Tux3 enforces strong ordering to make the write-rename pattern atomic, among other things. But we found that it also boosts performancem and as a bonus solves the same problem as stable pages solves. So it happened in that order.