On Mon, Mar 02, 2009 at 12:19:13PM +0100, Mark Phalan wrote: > Or even better move back to having the replay caches on tmpfs (requires > 6794523).
6794523 is not about putting the rcaches in tmpfs, but about avoiding cost of fsync(2) on a persistent rcache for *some* rcache adds/checks. To put an rcache on tmpfs and not pay a price on reboot (either in delay or security) one must set the clock skew to half the fastest boot time, and that clock skew cannot be grown (I once thought that it could be, but I was wrong). Nico --