Kip, On Wed, 10 Jun 2009, Kip Macy wrote:
KM> Author: kmacy KM> Date: Wed Jun 10 01:21:32 2009 KM> New Revision: 193878 KM> URL: http://svn.freebsd.org/changeset/base/193878 KM> KM> Log: KM> As far as I can tell systems that have less than 4GB are more often hurt KM> by prefetched than helped. On i386 systems and systems with less than 4GB, KM> prefetch is now disabled by default. I've added a prefetch enable tunable, to KM> enable prefetching for those systems. The prefetch disable tunable will continue KM> to unconditionally disable prefetching. KM> [snip] KM> +extern int zfs_prefetch_disable; KM> +extern int zfs_prefetch_enable; [snip] Before the interface is not settled in stone, don't you think simple bool zfs_prefetch tunable (defauled to what looks more reasonable to partucilar arch/memsize) is more clean and straightforward? -- Sincerely, D.Marck [DM5020, MCK-RIPE, DM3-RIPN] [ FreeBSD committer: ma...@freebsd.org ] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- ma...@rinet.ru *** ------------------------------------------------------------------------ _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
