Date: Fri, 23 May 2008 01:12:45 GMT From: John Birrell <jb@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 142082 for review Message-ID: <200805230112.m4N1CjHr015989@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=142082 Change 142082 by jb@freebsd3 on 2008/05/23 01:12:01 Reset to match current. Affected files ... .. //depot/projects/dtrace/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c#3 edit Differences ... ==== //depot/projects/dtrace/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c#3 (text+ko) ==== @@ -1439,7 +1439,7 @@ return (1); #endif #else - if (kmem_used() > (kmem_size() * 4) / 5) + if (kmem_used() > (kmem_size() * 3) / 4) return (1); #endif @@ -2729,7 +2729,7 @@ arc_c_max = (arc_c * 8) - (1<<30); else arc_c_max = arc_c_min; - arc_c_max = MAX(arc_c * 6, arc_c_max); + arc_c_max = MAX(arc_c * 5, arc_c_max); #ifdef _KERNEL /* * Allow the tunables to override our calculations if they are @@ -2800,11 +2800,12 @@ arc_dead = FALSE; #ifdef _KERNEL - /* Warn about ZFS memory requirements. */ + /* Warn about ZFS memory and address space requirements. */ if (((uint64_t)physmem * PAGESIZE) < (256 + 128 + 64) * (1 << 20)) { printf("ZFS WARNING: Recommended minimum RAM size is 512MB; " "expect unstable behavior.\n"); - } else if (kmem_size() < 512 * (1 << 20)) { + } + if (kmem_size() < 512 * (1 << 20)) { printf("ZFS WARNING: Recommended minimum kmem_size is 512MB; " "expect unstable behavior.\n"); printf(" Consider tuning vm.kmem_size and "
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